Tuesday, June 30, 2009

Avago's ultra-thin integrated optical proximity sensor for mobile electronic apps

SAN JOSE, USA & SINGAPORE: Avago Technologies, a leading supplier of analog interface components for communications, industrial and consumer applications, announced a new ultra-thin integrated optical proximity sensor for use in a wide range of portable consumer electronic devices, and personal computers.

Avago’s APDS-9120 proximity sensor combines a built-in signal conditioning IC, emitter and detector into a single package which offers both analog and digital output options for easy installation. This proximity sensor is ideal for use in mobile phones, PDAs, handheld games, and notebook computers.

With a surface mountable package size that is 1.1 mm thick by 4.4x4.4mm, the APDS-9120 offers many technical features required by mobile phone manufacturers such as an extended detection range, and superior signal conditioning circuitry, which offers superior performance in bright sunlight conditions.

Additionally, this integrated proximity sensor is very robust and provides application designers with ease of implementation as it eliminates the need for an external LED driver, signal filtering and amplification, as well as sunlight and ambient light immunity. This sensor also incorporates a stuck high protection circuit to preserve LED life.

Competitively priced, the APDS-9120 includes a shutdown mode to conserve power consumption and extend battery life in portable devices. Additionally, the pulse width, burst rate, duty cycle and frequency can be controlled to further minimize power consumption. Moreover, with an external limiting resistor, the LED current of this optical proximity sensor can be configured to a variety of levels.

Key features
* Patented ambient light cancellation circuit. Operational up to 100K lux to prevent false triggering.
* Analog and digital option to provide design and application flexibility.
* One of the longest detection distances available. Typical detection distance of 30 mm based on Kodak 18 percent grey card.
* Sensing capabilities adjustable from 10kHz to 1 MHz to provide faster detector response time.
* Supports burst pulse mode to help reduce power consumption.
* Shutdown current: 1uA maximum.
* Supply voltage: 2.4V to 3.6 V.
* RoHS compliant.

National Semi intros industry's first high-side dual LED Flash driver

SANTA CLARA, USA: National Semiconductor Corp. has introduced the industry's first high-side light-emitting diode (LED) driver that enables dual LED operation for the camera flash function in portable, battery-powered multimedia devices.

The LM3554, a member of National's PowerWise energy-efficient product family, drives one or two high-current LEDs for flash applications in handheld devices such as mobile phones, smartphones and portable scanners.

Traditional LED flash drivers sink current from a single high-current LED back into the driver resulting in significant heat dissipation into the driver IC and reduced system reliability. The LM3554's dual LED, high-side current-drive architecture sources regulate current into two LEDs with cathodes connected directly to the ground.

This ground connection provides more effective thermal dissipation while minimizing routing complexity and protecting sensitive circuitry. Due to nonlinearity of LED light output versus LED current, the dual LED architecture consumes less power for the same light output as a single LED.

In addition, monitoring pins enable detection of other high current demands in the system, adaptively throttling the LED current to avoid drawing excessive battery current, which can cause faults or harm the system.

The LM3554 is offered in a 16-pin micro SMD package. A complete boost converter solution for LED flash using National's LM3554 measures less than 23sq. mm.

Saturday, June 27, 2009

34 billion LEDs for TFT LCD backlights in 2012

AUSTIN, USA: Light emitting diodes (LEDs) have been a hot topic in the TFT LCD market due to their rapid adoption in notebook PC displays and the high potential in LCD TV panels.

In 2012, 34 billion LEDs will be used in TFT LCD backlights, in sizes ranging from 1” to more than 70”, up more than 300 percent from 8 billion in 2008, according to the new DisplaySearch report Display LEDs: Lighting Up the Display World.

A total of 70.8 billion LEDs were shipped in 2008 (see Table 1). There are two categories of LEDs used in display applications; active outdoor displays, which used 11 billion LEDs or 15 percent of the total in 2008, and LCD backlights, which consumed 8 billion or 11 percent of the total. Within LCD backlight applications, five key types are adopting LEDs: small/medium, notebook PC, desktop monitors, industrial applications, and most notably TV.

Table 1: LED Demand by Application (Millions of Units)Source: DisplaySearch Display LEDs: Lighting Up the Display World

With the fast growth in LED outdoor displays and backlights, DisplaySearch forecasts that display LEDs, including 24 billion for active outdoor display and 34 billion for LCD backlights, will have a 34.7 percent share of the global 167 billion unit LED market in 2012, making display LEDs the largest market segment.

Low-current LEDs will be the mainstream type used in large-area LCD backlights, due to cost, thermal management and luminance efficiency requirements. High-power LEDs, with a driving current higher than 350 mA (more than 1W), are not well-suited for LCD backlights due to thermal issues, and will mainly be used in general lighting applications that require high brightness.

Shipments of LED backlights for large-size (10”+) TFT LCDs will exceed 368 million in 2012, an amazing 25 times 2008 shipments (Fig. 1). For LCD backlights, side-view LEDs enable slim design, and dominate small/medium LCD backlights.

Large-size (10”+) LCD backlights typically use top-view LEDs, and with the increased penetration of LED backlights in notebook PCs and increasingly TVs, top-view LED shipments will pass side-view in 2010.

Fig. 1: Large Size (10”+) LED Backlight Shipments by Application (Thousands)Source: DisplaySearch Display LEDs: Lighting Up the Display World

The penetration rate of LED backlights in notebook PCs will reach 52 percent in 2009, and DisplaySearch forecasts penetration will grow rapidly to 81 percent in 2010.

In LCD TV, the penetration rate will ramp up from 3% with 3.6 million units in 2009 to 10 percent with 15 million units in 2010. Leading LCD TV brands including Samsung, Philips, Sharp, Sony, Toshiba, Vizio and LG are planning increased use of LED backlights starting in the second half of 2009.

A driving factor is the change in LED backlight structure from direct to edge light type, which reduces the cost premium over CCFL backlights. Finally, LED backlights in desktop monitors are expected to reach 31 million units in 2012.

Eyeing the growing LED needs for their panels, nearly all panel makers are participating in the LED business through new LED companies or investments in existing manufacturers.

DisplaySearch analysis indicates that Nichia and Toyota Gosei will continue to dominate the market for blue and white LEDs for LCD backlights over the next three years, due to their strong patent portfolios and customer relationships.

However, Samsung LED, Stanley, Citizen, Showa Denko, Seoul Semiconductor and OSRAM are targeting growth in LED backlights for LCD TVs. Finally, Taiwanese makers like Lite-On, Chi-Mei Lighting, Lighthouse and Everlight are entering the backlight market with low cost structures.

The DisplaySearch Display LEDs: Lighting Up the Display World report also reveals that LED revenues for outdoor displays will reach $1 billion in 2009 and are expected to grow to $1.5 billion in 2012. The use of LED outdoor displays in the 2008 Beijing Olympics provided international visibility, and such events will be a driving force for growth in LED outdoor displays in the coming years.

“LEDs will create new growth for the TFT LCD industry due to characteristics such as lowering power consumption, meeting green requirements, adding dimming capability, improving color performance and enabling slim and light form factors for LCD panels and applications,” noted Yoshio Tamura, Vice President of DisplaySearch and the component research team leader. “On the other hand, TFT LCDs also provide new vigor to the LED industry, as they open up broader applications requiring higher quality and more advanced technology.”

Tamura concluded, “The interaction between the LCD and LED industries can be viewed as a key development in electronics in the coming decades.

Friday, June 26, 2009

ON Semiconductor intros 10A Supercapacitor-based LED flash driver

PHOENIX, USA: ON Semiconductor, a leading global supplier of high performance, energy efficient, silicon solutions has introduced the NCP5680 supercapacitor-optimized LED flash driver, capable of delivering up to 10 amperes (A) for photo flash and video light in ultra-slim camera phones and compact digital cameras.

“The NCP5680, combined with an ultra-thin prismatic supercapacitor, delivers an ideal LED flash and power management solution for slim camera phones and digital cameras,” said Marie-Therese Capron, ON Semiconductor director of low voltage power management products.

“This total LED flash solution supplies comparable light energy to xenon flash, but with only half of the comparable solution height, and no need for an extra LED for video capture. Because the NCP5680 enables the Lithium-ion battery to support more power-hungry functions for a longer time, this new supercapacitor-based power management solution enables smart phones to offer ever richer functionality.”

When combined with the latest thin, prismatic supercapacitors - such as those offered by CAP-XX and licensed by Murata Manufacturing Co. Ltd, Japan, with a capacitance of up to 0.9F at 5.5 V -- and the high-power LED OSLUX from Osram -- ON Semiconductor’s NCP5680 complements the Lithium-ion battery by supplying high-peak-current of up to 10 A for flash lighting optimized for use with the BriteFlash Power Architecture developed by CAP-XX.

Fully programmable control of charging and discharging of the supercapacitor and unique overload protection ensures the right amount of light is provided for high-quality photography. The integrated driver can also power other high-peak-current circuits in portable systems, such as audio amplifiers, extending the useful battery operating time.

To produce high-resolution pictures in low-light conditions, cameras of 5 megapixels or more require a high-intensity flash. Today’s WLEDs can deliver this level of light energy, but require up to 400 percent more power than a camera battery can provide.

To support the battery, ON Semiconductor’s NCP5680 manages a supercapacitor to drive the LED flash to full intensity, supplying high-peak-current up to 10 A. The integrated driver in the NCP5680 also manages the supercapacitor to handle other peak-power needs -– zoom, auto-focus, audio, video, wireless transmissions, GPS readings and RF amplification –- extending battery life without compromising slimline design.

The NCP5680 integrates all circuitry required to charge the supercapacitor, manage in-rush current and control LED current, thus saving designers development time, board space and component cost. Fully programmable control of charging and discharging of the supercapacitor ensures the right amount of light for high-quality photography.

Microsemi's new line of standard rectifier diode power modules

IRVINE, USA: Microsemi Corp. has introduced a new line of standard rectifier diode power modules with 21 standard dual diode modules and six three-phase bridge rectifier diode power modules for industrial, UPS, SMPS, and motor drive applications.

All the new standard rectifier diode modules are rated at 1600 volts with a low forward voltage rating.

"With Microsemi's double isolation glass passivated rectifier chips, our standard rectifier modules provide superior reliability and performance over conventional modules on the market," said Philippe Dupin, Director, Power Module Products, Power Products Group located in Bordeaux, France.

"Our new standard rectifier portfolio has full mechanical and electrical compatibility with other modules in the industry, allowing Microsemi to equip the full range of power devices in a system from the input rectifier to the inverter output," he added.

Dual rectifier diode modules with 36A, 60A, 70A, 100A and 120A currents are integrated in the Microsemi SD1 package while 165A and 190A are offered in the SD2 package. MSCD Module reference specify a diode phase leg configuration while PN with MSAD and MSKD prefix include a common anode and common cathode configuration respectively.

The SD1, SD2, SM2 and SM3 packages -- with footprints respectively of 20mm x 93mm, 34mm x 93mm, 42mm x 72mm and 54mm x 94mm -- are fully compatible with other standard packages in the industry. At 30mm tall, they are also compatible in height with many standard IGBT modules, so that all modules from the input rectifier bridge to the converter output can be connected with the same level of bus bar or printed circuit board.

Technical data sheets are available on the Microsemi website. Samples are available immediately. Prices range from $8.42 to $30.86 in quantities of 1K to 5K.

Thursday, June 25, 2009

Taoglas launches first smart meter embedded antennae

ESCONDIDO, USA: Taoglas, the leading M2M antenna provider, launched the first smart meter embedded antennae with over 60 percent efficiency designed specifically for the utility market.

Called the FXP “Freedom” series, this range of six off-the-shelf flexible circuit antennas, works on three Industrial, Scientific and Medical (ISM) bands; 868 MHz, 915 MHz and 2.4 GHz.

The FXP freedom series antennas will enable metering companies to read smart meters in remote locations where wireless antennas previously did not work, such as basements, car parks and underground cavities. They are mechanically robust, able to withstand extreme temperature and humidity and have proven long lifetimes. They will also enable consumers and organizations to both conserve and cut the costs of energy.

The FXP antenna series is a super-thin 0.1 mm flexible circuit antenna. Similar to a piece of adhesive, it can be stuck directly to the housing or embedded into any metering device. Each design can be characterized and optimized for a meter and can even be integrated into existing meters that are being retrofitted for wireless functionality.

The presence of metal in many meters hinders larger FR4 type antennas, whereas the flexible antenna enables a greater clearance to be achieved. Unlike current market offerings that can take months to produce, Taoglas offers a customized antenna at any frequency that can be produced in three to four weeks or, an off-the-shelf solution for immediate use at the price that is lower than traditional antenna solutions.

“While the utility industry currently measures antenna performance using “gain”, at Taoglas, we think this is an outdated way of rating antenna performance. Antenna gain only measures performance in one direction in specific environments. Due to the wide variety of meter designs, housings and installation environments it is impossible to predict what direction an antenna is facing in relation to the base station.

Therefore, we take and apply mobile phone technology and specify “efficiency” for our antennas which gives metering companies an antenna performance over 360 degrees –- a much better performance indicator,” said Dermot O’Shea, Director, Taoglas.

Pickering Interfaces intros PXI digital I/O module

CLACTON ON SEA, UK: Pickering Interfaces is expanding its range of PXI products with the introduction of new high performance Digital I/O module.

The 40-413 is a 32 channel Digital I/O module with high current outputs and dual threshold voltage inputs available in three different modules. Typical applications will be found in military, aerospace and automotive function test systems.

The 40-413-001 provides 32 high side output drivers each capable of sourcing up to 2A from an external power supply. The 40-413-002 provides 32 low side drivers each capable of sinking up to 2A to ground. The 40-413-003 includes both high and low side drivers, allowing users the flexibility of supporting systems with mixed configurations where a mixture of high and low side drivers is required or different systems with both types of drive requirements.

Each output is capable of working with 40V power loads and is fully protected against over voltage spikes from inductive loads and short circuits from defective loads. Each output includes thermal protection to automatically shut the driver down when connected to a faulty load.

All models have 32 digital input channels which can compared to two user programmable threshold voltages that make it simple to check that the external inputs are high, low or intermediate voltages. Each input can withstand voltages to greater than 100V. The two variable threshold voltages can be set from 0.3V to 50V with nominally 12.5 mV resolution, allowing the 40-413 to work with all commonly found high voltage I/O applications.

3M's 19-micron embedded capacitance material for PCBs

AUSTIN, USA: The new 19-micron 3M Embedded Capacitance Material (ECM), introduced by 3M Electronic Solutions Division, offers printed circuit board manufacturers a high-performing choice for cost-sensitive applications.

3M ECM is a thin, high-performance embedded capacitor laminate for printed circuit boards. The material helps reduce impedance, power bus noise, EMI and discrete capacitor count. The material is designed for OEMs with high-speed digital and low-pass filter designs and who seek to differentiate their products through dramatically improved performance and reduced size.

The new 19-micron thickness is suited for cost-sensitive equipment, such as handheld electronics, where functionality and size constraints drive design.

The material’s high capacitive density allows it to perform the power supply decoupling function so that the number of discrete capacitors may be reduced, increasing useable board space and allowing for board size reduction.

3M ECM is compatible with most rigid and flex printed circuit board processing, including laser drilling. Fabricators and OEMs worldwide may use 3M ECM without a purchasing license from 3M. The material is RoHS compliant.

Wednesday, June 24, 2009

High growth rates forecast for LED replacement lamp market

MOUNTAIN VIEW, USA: Market conditions are right for the LED replacement lamp market to accelerate in the next few years, according to a new market report by Strategies Unlimited, a leading firm covering the LED market.

Dramatic improvements in commercially available LED performance in recent years, as well as significant cost reduction, has made it feasible to design LED lamps to offer comparable lumen output and to compete with other established lighting technologies on the basis of cost of ownership.

The market is in a state of flux as utilities, energy efficiency organizations and customers look for optimum solutions which save energy, minimize the cost of ownership, and give acceptable quality of light. Customers are in the process of being educated about comparing cost of ownership rather than the initial price of lamps.

Regulations in Europe will ban the 100W incandescent clear glass lamp starting in September 2009, and will progressively ban all inefficient incandescent lamps by 2012 and all incandescent lamps by 2016.

The Energy Information and Security Act of 2007 began the process of restricting the sale of inefficient lamps in the US. By 2012, with a few exceptions, inefficient incandescent lamps cannot be sold. Although the awareness of these regulations is still weak in the marketplace, they will create market opportunities for LED replacement lamps.

Recognizing the potential of LED technology to save energy, policy makers have been supporting the research and development of LED technology and helping its commercialization. In the short run, while LED replacement lamps become a viable alternative, regulators are encouraging compact fluorescent lamps (CFLs).

However, over the next five years the advantages of LED technology over CFL will become recognized, especially with respect to the quality of light, dimmability, controllability, lamp life and environmental cost of ownership. Some well-designed LED lamps already offer effective lumen efficacies that compete with CFLs.

The commercial and industrial segments will embrace LEDs to control costs and save energy. The LED lamps will be used for directed light applications, in hard-to-reach places and where the cost of replacement is very high. Although the market for LED replacement lamps is still in its early stages of development, the lamp revenues are forecast to grow at a CAGR of 107 percent through 2013.

LEMO connectors available with 48-hour assembly service

PHILADELPHIA, USA: Franchised assembly distributor PEI-Genesis has extended its connector component inventory and assembly capability to include LEMO connectors.

Authorized to distribute within the USA, PEI-Genesis is the only qualified LEMO assembly distributor, building connectors from component piece-parts.

As with all of its assembled products, PEI-Genesis now offers thousands of possible LEMO connector part numbers with an unique 48-hour assembly service to customers.

PEI-Genesis President and COO, Russ Dorwart, said: "PEI-Genesis is the fastest robotic assembler of connectors in the world and LEMO push-pull connectors are a powerful addition to our connector offering. LEMO will enable PEI-Genesis to provide more mass-customized solutions to our customers, all within our 48 hour build-ship guarantee."

LEMO is a global leader of circular Push-Pull connectors that are found in a variety of challenging environments including medical, industrial control, test and measurement, audio-video, and telecommunications. The most popular of the LEMO push-pull connectors is the B Series (dustproof) for indoor applications and the K Series (watertight) for outdoor applications. Both are self-latching, multipole (2-64 contacts) connectors with an alignment key.

PEI-Genesis has been in business since 1946 and has been building connectors since 1952. It is the only value added connector distributor in the world that builds, tests, packages, and ships all orders within a 1.1 day cycle time and does so using proprietary robotic assembly equipment.

PEI-Genesis builds over 36,000 connectors per day and is one of the 15 largest distributors in North America. PEI-Genesis is focused on interconnect solutions with 21 sales offices backed by a strong team of Internal, Field, and Design Engineers.

Tuesday, June 23, 2009

Pulse's Halogen-free power bead inductor products

SAN DIEGO, USA: Pulse, a Technitrol company, a leader in electronic component and subassembly design and manufacturing, announced that its full line of power bead products, used in voltage regulators for computing applications and point-of-load (PoL) products, are now halogen-free.

Halogen elimination is part of Pulse’s on-going initiative to comply with the Registration, Evaluation, Authorization and Restriction of Chemical (REACH) regulation under EC 1907/2006.

Pulse’s halogen-free parts will be identified by the suffix HL, indicating that they comply with both halogen-free and lead-free standards. The first halogen-free series to be released was the PA0511, the most widely used power bead inductor series.

Soon to follow will be high-efficiency coupled inductors for graphics and server applications. To request halogen-free parts, customers simply enter HL in place of NL as the part number suffix.

“It was more difficult than expected to find materials that comply with the halogen-free standards of less than 900 parts per million (ppm) chlorine, 900ppm bromine, and 1500ppm combined,” explained John Gallagher, field applications engineer for Pulse.

“These elements often enter raw materials such as plastics and epoxies as impurities in the manufacturing process. Some vendors mistakenly think their products are halogen-free simply because they have not intentionally added these elements. Pulse decided to release the power bead products first, since many computer manufacturers requested them.”

Pulse’s highly efficient, off-the-shelf power beads offer high performance for multi-phase buck regulator applications. Their low direct current resistance (DCR) minimizes inductor conduction losses while their low-loss ferrite cores minimize inductor switching losses.

Plus, their small footprint enables flexibility in board layout. Power bead inductors come in through-hole and surface mount configurations for use in power supplies for desktop and notebook computers, servers, graphics cards, and PoL applications.

Microchip debuts low-power, high-precision op amps

CHANDLER, USA: Microchip Technology Inc. has announced three new families of low-power, high-precision operational amplifiers (op amps); meaning the Company now has an extensive offering of high precision Op Amps with Gain Bandwidth Product (GBWP) from 10 kHz to 50 MHz.

The MCP6051/2/4 (MCP605X), MCP6061/2/4 (MCP606X) and MCP6071/2/4 (MCP607X) op amps feature offset voltages of just 150 microvolts and are well suited for applications requiring low power consumption, low-voltage operation and high precision, such as those in the industrial, medical, consumer and other markets.

Developed in response to market demands for op amps providing low power and lower offset voltages, the MCP605X/6X/7X op amps are trimmed in-package to enable their low offset voltage, which results in reduced error at high gains.

The devices feature operating voltage from 1.8V to 6.0V, making them ideal for portable applications; and their rail-to-rail input and output provides greater dynamic range, even at lower operating voltages. Additionally, they are unity-gain stable and operate over the extended temperature range of – 40 to 125 degrees Celsius.

“Microchip has again leveraged its low-power, CMOS technology to provide additional families of industry-leading op amps, with the MCP605X/6X/7X devices,” said Bryan Liddiard, vice president of Microchip’s Analog and Interface Products Division. “These new devices lead the industry with their combination of low power consumption and low offset performance, and are expected to enable new markets for Microchip in portable instrumentation.”

Device-specific features
The MCP605X op amps have a GBWP of 385 kHz and a quiescent current of 30 microamperes. The MCP606X op amps have a GBWP of 730 kHz and a quiescent current of 60 microamperes. The MCP607X op amps have a GBWP of 1.2 MHz and a quiescent current of 110 microamperes.

All of the op amps are well suited for applications requiring low power consumption, low-voltage operation and high precision, such as portable instrumentation devices used in the industrial (portable gas detectors, pressure-monitoring devices, toll-booth tags, digital multimeters, RFID readers, bar-code scanners); medical (blood glucose meters, wearable heart-rate monitors and body-temperature measurement sensors); and consumer (gaming consoles, set-top boxes and portable audio players) markets.

Development support
PCB footprints and schematic symbols are expected to be available in August 2009 from Microchip’s Web site at http://www.microchip.com/cad. The downloads will be available in a neutral format that can be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader from Accelerated Designs Inc.

GigOptix books $1.5 million order for undersea optical drivers

PALO ALTO, USA: GigOptix Inc., a leading provider of electronic engines for the optically connected digital world, announced the booking of a $1.46M purchase order for its ultra long reach Mach-Zehnder Modulator (MZM) drivers.

The order, from a large European customer for undersea optical network cable drivers, is to be delivered in full during the second half of 2009.

“Despite the difficult market conditions, we see a continued healthy demand for our long reach and ultra long reach drivers for terrestrial and undersea optical cable links greater than 500 km. Our drivers, with integrated encoders for 10Gb/s RZ and RZ-DPSK modulation formats, are valued for their superior performance and offer the best jitter specifications in the market,” states Padraig O’Mathuna, Director of Product Marketing at GigOptix.

“This new order brings our expected 2009 sales to this customer to more than $3.5 million,” he added.

Monday, June 22, 2009

Delta unveils high efficiency, compact E Series UPS (1kVA to 3kVA) for India

BANGALORE, INDIA: Delta Group, global leaders in power management solutions, has introduced a new range of 1kVA to 3kVA E–Series UPS systems for the Indian market.

The company has strengthened its portfolio by announcing the launch of E-Series UPS for its clients in small and medium enterprises (SMEs) and corporate segment.

The company’s current product portfolio includes comprehensive UPS solutions from 1kVA to 4000kVA for various growth verticals such as IT/ITes, Telecom, Banking & Finance, Process Control, Biotech, Healthcare, Retail, Infrastructure and Government.

The new range of single phase E-Series UPS system is a true, online design with double conversion technology to provide high performance and reliability for mission critical applications in compact size.

SMEs are increasingly becoming network dependent. Many have implemented ERP increasing the importance of uptime. Delta understands the SME sectors’ requirement has high focus on its business growth and therefore, cannot afford business downtime even for a short period of time due to any issues with peripheral equipment like UPS

Deepak Sharma, sales director for Delta UPS Systems in India, said: "Breaking the traditional barriers and concepts, the new E-series UPS is built on plug-n-play style, has intelligent self diagnostic functions, light-weight and provides freedom to choose extended runtime options. This launch is a definite step towards spreading our footprint across the country through introduction of new models and strengthening sales & service support network."

Among one of the fastest growing UPS companies in India, Delta’s intends to target the huge SMB segment which accounts for 50 percent of industrial output in India.

Main features and benefits:
* Microprocessor controlled, high frequency PWM technology based on ‘TRUE ONLINE’ double conversion UPS System with IGBTs at inverter stage and provides pure sine wave output with high reliability and efficiency.
* Input power factor correction up to unity to reduce input current resulting in lower electricity bills and minimizing harmonics making it truly ‘generator compatible’.
* High AC to AC efficiency resulting in lower running cost, quieter operation and lesser load on air conditioning making it a truly ‘green’ UPS.
* Widest input voltage range to help users’ maximize the mains utilization, thus saving on battery life and replacement costs. These UPSs operate on mains mode at voltages as low as 80V. To ensure that the batteries are used only when absolutely necessary.
* Extended battery runtime upto four hours as standard and scalable upto 24 hours.
* UPSentry network shutdown software through intelligent RS-232 communication interface.
* High input voltage withstand capability is provided up to 330V AC to make the UPS suitable for use in weak electrical grid areas also.
* Cold start allows the UPS to start on mains supply without batteries or on batteries without mains supply, a truly useful feature to power up loads even under emergency.

Delta E Series UPS has two-year warranty as per manufacture standard format and it is available in the Indian market at a starting range of price Rs. 9,999.

Sunday, June 21, 2009

Alternatives for RoHS restricted substances

This is a guest post by Gary Nevison, Head of Legislation, Farnell, A trading division of Premier Farnell UK Ltd.

Substitution of HBCDD, DEHP, BBP and DBP

Background
UK: Hexabromocyclododecane (HBCDD), Bis-ethylhexyl phthalate (DEHP), Butyl benzyl phthalate (BBP) and Dibutyl phthalate (DBP) are classified by the REACH regulations as Substances of Very High Concern (SVHCs) and are included in the “Candidate List”. They have also been proposed for inclusion in Annex XIV, substances requiring authorisation for use.

The European Commission (EC) has submitted proposals to amend the RoHS Directive (so called RoHS2) and one proposal is to consider adding these four substances to the list of restricted substances. The three phthalates are also banned in children’s products in the European Union (EU) and in the USA.

This article describes their main uses and possible alternatives.

Main uses
Table 1: Main uses of the substancesSource: Farnell

Alternatives to HBCDD

HIPS
Two options are available; use a different brominated flame retardant or a different type of plastic. For example, decabromodiphenylethanol and ethylene bis-tetrabromophthalaimide are used as flame retardants in HIPS and can achieve UL94V0 and neither are restricted.

There are however no non-brominated flame retardants that can achieve UL94V0 in HIPS although there are several phosphorous-based flame retardants that can achieve UL94V0 in PC/ABS and PPE/HIPS blends which are often used for enclosures. However, some phosphorous flame retardants have certain hazardous properties and many are not fully tested.

Textiles
Several options are available including decabromodiphenyl ether (decaBDE) which is banned by RoHS but not in vehicles and some other applications. Chlorinated paraffins are also used but are toxic and aluminium polyphosphate which is the least hazardous option.

EPS
No alternatives exist that provide adequate flame retardancy but alternative insulation materials may be suitable. These include phenolic foams (highly persistent), polyurethane foams (very toxic fumes if burnt) and glass and mineral fibres.

XPS
No substitute flame retardants are available as all would need too high a loading and therefore the required properties of the XPS would not be met. Hence, different materials are the only alternative; starch based packaging chips and bubble wrap are two options.

Alternatives to DEHP, BBP and DBP
There are many alternatives, but most are not hazard-free and their properties differ. The following lists some of the more commonly used examples but many others are also used:

Table 2: Examples of alternatives plasticisersSource: Farnell

There are many others available including other phthalates, esters, phosphates, etc.

Conclusions
Hexabromocyclododecane, Bis-ethylhexyl phthalate, Butyl benzyl phthalate and Dibutyl phthalate are clearly hazardous chemicals so their use will, in the future, become increasingly restricted. There are many possible alternatives but choosing the best option is not straightforward. For each application, substitution will often give products with different properties and performance, which need to be assessed.

One of the main problems with choosing a substitute is to identify one that is safe to use and will not be restricted in the future. Di-isobutyl phthalate is the most common replacement for DBP but Germany has indicated that it intends to submit a proposal for di-isobutyl phthalate to be classified as a SVHC.

Most of the potential substitutes have not been extensively tested and in many cases test results are inconclusive or incomplete. However the test data that does exist for many of the possible alternatives indicates that they are safer options and many are increasingly used in preparations and in finished products.

Saturday, June 20, 2009

GigOptix extends DARPA research contract

PALO ALTO, USA: GigOptix Inc., a leading provider of electronic engines for the optically connected digital world, announced the extension of irs contract with DARPA MTO and with SPAWAR PACIFIC as the contracting agency.

The additional work requested is to fabricate low driving voltage, broadband Mach-Zehnder (MZ) modulators using GigOptix’s Electro-Optic (EO) polymer material for operation at very low temperatures for applications in supercomputers. The extension of $346,000 brings the total value of the contract to approx $6.1M and opens new areas for use of the modulators.

"Due to their intrinsic properties, the EO materials incorporated in GigOptix’s high speed polymer modulators have the potential to operate not only with low driving voltage but also at very low temperatures. Our technology is capable of effectively addressing all these requirements simultaneously," said Dr. Raluca Dinu, Vice President and General Manager of GigOptix-Bothell business unit.

"We are excited that GigOptix's EO polymer technology has once more proven its breadth and applicability for demanding military applications. We are continuing in parallel to commercialize the modulator for telecom applications and prove that EO polymers can offer the reliability requested by the industry."

Electro-optic polymer devices are well suited to deliver on the size, weight and power, high-bandwidth, and immunity to electromagnetic interference requirements that are crucial for many defense applications.

Friday, June 19, 2009

Many patents in LED industry to expire in 2010!

DUBLIN, IRELAND: Research and Markets has announced the addition of the "Research Report of Global and Chinese Light-Emitting Diode Industry, 2009" report to its offering.

Light-emitting diode is one of the semiconductor diodes, which can turn electrical energy into luminous energy and emit visible light in various colors, such as yellow, green, blue, etc, as well as invisible light, such as infrared and ultraviolet light.

Compared with small incandescent bulb and the neon lamp, light-emitting diodes are specially characterized with low operating voltage and electric current, high reliability and long performance.

The entry barriers of the light-emitting diode industry from the upstream to the downstream are cut down gradually. The upstream industry includes mono-crystalline chip and the epitaxial wafer while the middle stream industry is mainly engaged in chip processing and the downstream industry handles packaging, testing and application.

The upstream and middle stream industries, most competitive and risky fields on world market, have higher technical contents and require more investments. In the industrial chain of light-emitting diode, epitaxial wafer and chip account for about 70 percent of profits and the packaging accounts for 10 to 20 percent of profits, with 10-20 percent held by application field.

Under international energy crisis and the gradual improvement of the environmental protection requirements, the semiconductor light-emitting diode lighting, long performance, energy saving, safe, green and environmental protection, abundant colors and microminiaturization, has been recognized as the only one manner of energy saving and environmental protection in the world.

The semiconductor lights, adopting light-emitting diode as the new lighting source, only run up one tenth of the electricity compared with the ordinary white light lamps and the performance can be postponed ten folds at the same brightness.

In 2007, the total amount of the global LED market exceeded $6 billion, up by 13.7 percent over the previous year. During 2006 to 2012, the annual compound growth rate of the global LED market will reach 10 percent, most of which will mainly be contributed by the ultra high and high brightness LEDs.

The global LED industry is mainly concentrated in Japan, Taiwan, Europe, America, South Korea, China, etc. Japan, the largest producer of the light-emitting diode industry in the world, holds 50 percent of the market share.

Nichia Corp. is the world's largest provider of the high-brightness light-emitting diodes. Toyoda Gosei Co. Ltd is the world's fourth largest and Japanese is the second largest manufacturer of the light-emitting diodes.

Osram Opto, located in the Europe and America, is the world's second largest and European is the largest manufacturer of the high-brightness light-emitting diodes. Taiwan, the global production base of the consumption electronic products, is mainly engaged in the production of the visible light-emitting diodes.

Taiwan is also the world's largest downstream packaging and middle stream chip production base.

With more than 30-year development, Chinese light-emitting diode industry has formed the basically complete industrial chains, covering the LED inside, epitaxial wafer, chip package and application.

At present, China has over 600 LED enterprises specializing in the downstream packaging and application. But the development of the epitaxial wafer and chip is comparatively backward. There are only about 10 enterprises engaged in the production of the epitaxial wafer for LED, as well as few chip manufacturers. So, the yield capacity enjoys a high degree of concentration.

With gradual enhancement of the luminous efficiency and application technologies, the application of the light-emitting diodes has been transferred from the initial indicator lights to screens, such as the landscape lighting, backlight, automobile lights, traffic lights, lighting areas, etc.

The application of the light-emitting diodes is now in diverse development. It is predicted that the average compound growth rate of sales of the display light-emitting diodes will be above 15 percent in 2006 to 2010 and the annual average compound growth rate of sales of the landscape lighting will reach over 35 percent, with the annual average compound growth rate of sales of the backlight light-emitting diodes at more than 30 percent.

In 2010, many patents in the light-emitting diode industry will expire. Chinese enterprises are expected to break through the shackles of the intellectual property rights from European, American and Japanese giants. They should make good use of huge market bases and abundant labor resources in order to occupy a place in the global light-emitting diode market.

Report on US electronic connector manufacturing industry

DUBLIN, IRELAND: Research and Markets has announced the addition of Supplier Relations US, LLC's new report "Electronic Connector Manufacturing Industry in the US and its International Trade [Q2 2009 Edition]" to its offering.

The Electronic Connector Manufacturing Industry report is the most comprehensive market research report available on this industry. It provides the most updated data and analysis on the industrys key financial data, cost and pricing, competitive landscape, industry structure, and trends and opportunities.

In 2008, the value of imported products within this industry into the US has been relatively high, at approximately 80 percent of US production. Because of this reliance on imports, the report covers the foreign trade statistics including the top 25 countries the US imports from and their respective import values.

This industry exhibits a high amount of trade activity, because in 2008, the value of exported products within this industry into the US has also been relatively high, at approximately 100 percent of US production. This reliance on exports is also covered in the reports foreign trade statistics.

Due to the high amount of exports compared to US production numbers, at more than 100 percent, the report further reveals the domestic and foreign export values, the former defined as exported products produced in the US, and the latter as products imported and re-exported.

Over the past three years, the industry has shown a strong growth in exports, at approximately 11 percent constant annual growth. This growth in international trade is further analyzed in the reports export section covering major trade partners.

This 164-page report contains unparalleled research on this industry in breadth and depth. With a macroeconomic perspective, the report provides a fresh and comprehensive view of the industry. The report's supply and demand data covers both U.S. shipments and international trade while taking into consideration of the industrys capacity utilization.

The industry level income statements, balance sheets, and capital expenditure analysis contain all the elements needed for financial benchmarking. In the cost analysis section, 51 upstream industries are analyzed to offer insight into the supply chain cost structure. For the channel and pricing structure, 46 downstream industries are analyzed.

The competitive landscape section provides the number of companies and their revenue share within the industry, the market concentration, and a list of major players. All related trade associations, industry standards, and trade publications are also listed.

This US industry comprises establishments primarily engaged in manufacturing electronic connectors, such as coaxial, cylindrical, rack and panel, pin and sleeve, printed circuit and fiber optic.

This six-digit NAICS industry (334417) is under the hierarchy of Semiconductor and Other Electronic Component Manufacturing Industry (33441), Computer and Electronic Product Manufacturing Subsector (334), and the Manufacturing Sector (31-33). Its SIC equivalent code is: 3678 - Electronic Connectors.

Revenue, profitability and foreign trade preview
The industry's revenue for the year 2008 was approximately $4.2 billion, with an estimated gross profit of 36.35 percent. Import was valued at $3.5 billion from 95 countries.

The industry also exported $4.1 billion worth of merchandise to 184 countries. Adding import value to and subtracting export value from the industrys shipment value, the total domestic demand for the industry in 2008 was $3.6 billion.

Award for ST's TPSC806D and STPSC1006D SiC Schottky diodes

SINGAPORE: STMicroelectronics has been awarded an “Electron d’Or 2009” by Electronique Magazine in the ‘power conversion’ category, for its new family of silicon-carbide (SiC) Schottky diodes.

The winner in each award category is determined by an independent jury of recognized experts in the electronics industry, and is selected from products released in the previous year.

“The prestigious ‘Electron d'Or 2009’ award is an important validation of ST’s commitment to provide reliable and high-performance product for power applications,” said Ricardo de Sa Earp, General Manager of the ASD & IPAD product division (Application Specific Devices and Integrated Passive and Active Devices), STMicroelectronics. “We greatly value the recognition from Electronique and the panel of experts from the French electronics industry and are delighted with its selection of our SiC Schottky diodes.”

ST’s STPSC806D and STPSC1006D silicon-carbide diodes employ the latest substrate technology to eliminate power-supply switching losses, improving efficiency and reducing heat.

While ordinary silicon diodes used in switched-mode power supplies lose up to 1 percent efficiency by not turning off immediately, SiC technology is able to deliver greater efficiency because no reverse recovery charge accumulates during the diode’s normal conduction period.

By eliminating this reverse recovery charge, SiC Schottky diodes have much lower switching losses across the board, leading to higher efficiency and lower heat dissipation.

Thursday, June 18, 2009

Crystal oscillator veterans face growing challenge from silicon upstarts

SCOTTSDALE, USA: Vendors of crystal oscillators are the guardians of a design and manufacturing tradition going back to the early 20th century, and some of today’s market participants trace their origins to those early days.

Their products, evolved over more than 75 years, require craftsmanship and exacting fabrication skills to produce, and are found in a vast array of electronic equipment to this day.

Yet, now, the market position of the crystal oscillator is threatened by a new set of devices grouped under the label “silicon timing solutions.” The fortunes of these two contenders are tracked in a new study from ABI Research.

According to research director Lance Wilson: “There’s a growing battle for market share between silicon timing solutions and the traditional quartz oscillator and its derivatives. Right now, silicon timing solutions have about 20 percent of the market, but ABI Research forecasts that percentage to nearly double within five years.”

Virtually every device that contains an IC or generates a radio signal needs these devices. The incentives for equipment manufacturers to switch to silicon timing solutions?

They are generally less expensive, more robust, and can integrate other functions onto the chip. But although great strides have been and will be made, they do not yet equal crystal oscillators in accuracy and stability.

So, says Wilson, “There are still applications where silicon timing solutions aren’t yet adequate to replace a crystal oscillator.”

In order to maximize their long-term chances of holding market share, many crystal oscillator vendors are focusing on military, aerospace and industrial markets where accuracy is at a premium and buyers are somewhat less price-obsessed.

Silicon timing solution vendors, on the other hand, see fertile territories in mainstream computing and consumer electronics with MIDs and netbooks two particularly active new segments.

GigOptix enables sub 1W for 120Gbps parallel optics links

PALO ALTO, USA: GigOptix Inc. announced today that it has successfully demonstrated error-free 10Gbps optical links over 100m of multi-mode fiber (MMF) operating with less than 81mW per channel or 8mW/Gbps.

These links used ‘off the shelf’ 850 nm O/E components and GigOptix’s HXT/R4 series of multichannel VCSEL driver and receiver arrays with a single power supply. This is a major step in parallel optics solutions as it will enable 12 channel links used in SNAP12, CXP, for and 100GBASE-SR10 standards to achieve sub 1W power dissipation.

Commercially available 12 channel parallel optics modules operating at 6.25Gbps per channel offer an aggregate bandwidth of 75Gbps with power consumption of 53mW/Gbps or in the range of 300mW per channel. GigOptix 10Gbps solution offers 120Gbps and results demonstrate more than 6 x improvement over the previous generations with a single power supply.

"Network demand continues to grow at a fast pace and parallel optics provides many benefits over traditional copper connections in broadband networks," commented Daryl Inniss, Vice President and Practice Leader of Communications Component of Ovum. “Continuously driving down the energy per bit is key to accelerating the adoption in the Enterprise segment. GigOptix is setting a significant benchmark with these results.”

“This is a great result that confirms the value of the 10Gb/s implementation with new technology concepts to reduce power. We also have more system optimization ideas which, we believe, can improve on these results with further cooperation with our customers,” stated Joerg Wieland, Vice President and General Manager of GigOptix-Helix.

“System integrators can now produce unprecedented power efficiency for high-density, board-to-board interconnects for high-end servers and routers. This new generation provides higher bandwidths and greatly reduces system power dissipation which will enable data center managers to save significantly on energy costs due to heat management. ”

The HXT/R4 family is designed for use in Active Optical Cables (AOC), SNAP12 and QSFP optical modules while serving the fast growing markets of high performance computing optical interconnects, switch and router optical backplanes and the new 40G and 100G Ethernet standards.

ST's high-temperature sensitive TRIACs achieve motor control at 150 degrees C

SINGAPORE: STMicroelectronics has introduced the first TRIACs with 10mA gate sensitivity to be specified for operation up to 150 degrees C without derating, enabling low-cost solutions for heaters, motors and other small appliances, through savings in heatsinks, and gate-drive power-supply and snubber circuitry.

The devices introduced are the T410H rated for maximum current of 4A, the 6A T610H, 8A T810H and 10A T1010H. Their low gate current of 10mA allows direct logic-level switching of the TRIAC, which saves component count and reduces the size and cost of the power supply.

In addition, the low gate current maintains high dynamic performance, maintaining specified minimal commutation and 75V/microsecond noise immunity at up to 150 degrees C. This high maximum junction temperature (Tj) allows designers to reduce or remove heatsinks in cost-sensitive designs, increase power density, and enhance reliability at high ambient temperatures.

The new TRIACs are ideal for control of AC loads such as electric heaters, inductive heating equipment, medium-power motors, and other small appliances. At normal operating temperatures, they exceed the performance of similar devices specified for 125 degrees C maximum Tj. All devices are rated up to 600V, for reliable operation in mains-powered systems.

All devices are available in the industry-standard TO-220AB through-hole package, and the T810H and T1010H will also be introduced in the surface-mount D2PAK package.

The launch of these low-gate-current devices extends ST’s introduction of HiTj TRIACs, which began in February 2008 with devices having gate sensitivities of 35mA and 50mA, and current ratings up to 20A.

The T410H, T610H, T810H and T1010H will be priced from $0.40 in quantities of 10,000 pieces, and are in volume production.

Cree intros world's first IPx5-rated tri-color LED for full-color displays

DURHAM, USA: Cree Inc., a leader in LED lighting, announced the first commercially available water-resistant, surface-mount, high-brightness LEDs for outdoor video screens. This RGB (red-green-blue) LED has an IPx5 rating, indicating that the LED is protected against low-pressure jets of water from all directions.

"We've developed a water-resistant, red-green-blue LED that can be used in indoor and outdoor video screen applications," said Paul Thieken, Cree director of marketing, LED components. "Previously, LEDs had to be encapsulated to protect them from water. By incorporating encapsulation at the LED level, we can help our customers save time and money."

"Displ'aire, working with Cree, is changing the rules for LED displays," says Leo Stearns, Displ'aire's CEO. "Cree's involvement started with us early in our development cycle, and they provided the support we needed to rapidly deploy our new technologies. Displ'aire portable, daylight-visible displays and the new water-resistant Cree LEDs are a perfect technology match for creating brighter, more efficient displays that can better stand up to the elements."

The ScreenMaster CLV6A-FKB features a black face for improved contrast in full-color video screens, decorative lighting and amusement applications. It has a unique encapsulation resin with UV-inhibitors, minimizing the effects of long-term exposure to direct sunlight which helps to improve the stability of the light-output over the life of the LED. It also features a unique matched horizontal radiation pattern-enhancing color mixing and pixel-to-pixel color consistency.

The CLV6A-FKB is commercially available now, and samples can be requested through a Cree representative.

Wednesday, June 17, 2009

GigOptix intros two single bias broadband power amplifiers

PALO ALTO, USA: GigOptix Inc., a leading provider of electronic engines for the optically connected digital world, extended its range of broadband amplifiers with the release of two new MMICs, the iT2003 and iT2004 power amplifiers. Both offer an operating range of 2-20GHz and are designed for use in military and defense applications such as microwave amplifier assemblies.

The iT2003 and iT2004 are highly efficient broadband GaAs MMIC traveling wave amplifiers with single bias operation. Single bias supply operation significantly eases the design challenge of the customer by removing the need for a complex biasing network to manage the bias sequencing. The iT2004 is designed for high output power applications, while the iT2003 supports medium output power applications.

The iT2004 provides a saturated output power of 29dBm up to 7 GHz, greater than 26 dBm up to 20 GHz. Average gain of 10 dB with flatness of +/-1 dB is provided up to 20 GHz. DC power consumption is as low as 3.0 W and the input/output ports are AC coupled.

The iT2003 provides a saturated output power close to 27dBm up to 8 GHz and greater than 25 dBm up to 16 GHz. The average gain is 15 dB. DC power consumption is as low as 1.76 W and the input/output ports are AC coupled.

“The launch of these two new products is just the first step GigOptix is taking to revitalize and strengthen our RF portfolio and to re-engage with customers in the RF field,” said Andrea Betti-Berutto, CTO at GigOptix. “The iT2003 and iT2004 are following our RF products ‘best in class’ tradition by offering the best power efficiency of any single bias broadband amplifier in the market today.”

Engineering samples of the iT2003 and iT2004 die are available along with a test fixture. Packaged versions will be developed later this year.

Fairchild intros first camera isolation switch for portable devices

SAN JOSE, USA: Fairchild Semiconductor brings designers of 3G smartphones, netbooks, set-top boxes and notebooks the industry’s first image module switch that isolates parasitic components to maintain signal integrity.

The FSA1211 is a 12-port, single pole, single throw (SPST) analog switch that isolates the high speed bus from parasitic components in dual camera applications. Smartphones feature dual cameras and as these cameras move to higher and higher resolutions, parasitic components play a critical role in deteriorating signals and generating unwanted EMI.

With a bandwidth in excess of 720MHz and high ESD (5.5 kV), the FSA1211 offers an optimal way to isolate capacitance and maintain signal integrity for high speed data paths. In addition, when isolating the unused parallel interface, the FSA1211 reduces the radiated EMI of the path, improving RF desense.

The traditional parallel solution can deteriorate the signal due to the unwanted “stub,” resulting in image degradation of the camera module. Another approach is to use three analog switches, which complicates design and adds to the overall bill of material (BOM) costs. In contrast, the FSA1211 offers robust isolation and ease of design at a lower cost.

The FSA1211 complements Fairchild’s comprehensive offering of switch products used in portable and consumer applications. These analog, audio, video and USB switches are instrumental in minimizing redundant circuitry, eliminating connectors, simplifying design and conserving space in designs. Offered in a variety of functions, configurations, packages and performance levels, Fairchild’s switches are pivotal in solving portable and consumer design challenges.

Tuesday, June 16, 2009

TI unveils smallest 6-A, 17-V step-down DC/DC converter

DALLAS, USA: Extending its family of easy-to-use SWIFT(TM) power management ICs, Texas Instruments (TI) has introduced the industry's smallest single-chip, 6-A, 17-V step-down synchronous switcher with integrated FETs.

The high-performance TPS54620 is 60 percent smaller than today's multi-chip converters, resulting in a complete 6-A power solution less than 195 mm2 -- one-fourth the size of a postage stamp. The 1.6-MHz monolithic DC/DC converter supports input voltages from 4.5 to 17 V, allowing it to manage space-constrained 5-V and 12-V point-of-load designs, such as a wireless base station or high-density server.

"As telecom designs become more dense and complex, they need more integrated, highly efficient power management devices that support a 12-V power rail," said Steve Anderson, senior vice president of TI's Power Management business unit. "We continue to develop smaller, more robust SWIFT converters, so designers can more quickly develop differentiated products for the market."

In addition to size improvements, the TPS54620 offers a high degree of performance and reliability, such as a highly accurate voltage reference with +/- one percent accuracy over temperature. Achieving a 95-percent power conversion efficiency and a 25 percent lower Rds(on) than previous 6-A SWIFT devices, the converter easily powers deep sub-micron TI digital signal processors (DSPs) and other embedded processors, such as FPGAs and ASICs.

Features and benefits of TPS54620
* The SWIFT device supports a 6-A continuous, 8-A peak load current, and a power stage input voltage range from 1.6 V to 17 V.
* 1.6-MHz synchronous converter integrates two high-efficiency MOSFETs (26 milliOhms and 19 milliOhms) and comes in a space-saving, thermally enhanced 3.5 mm x 3.5 mm monolithic QFN package that minimizes footprint.
* Synchronized switching frequency from a master clock eliminates beat noise in sensitive data acquisition circuitry.
* Feature-rich IC includes power-good, enable and tracking pins for sequencing.
* Broadest range of monolithic and multi-chip solutions.

TI provides the broadest range of step-down converters in the industry, including its SWIFT and discrete DC/DC converters.

In addition to the TPS54620, TI recently introduced its new TPS54418 4-A switcher with integrated FETs, which supports input voltages from 2.95 V to 6 V. The device switches up to 2 MHz, can be synchronized and achieve greater than 95-percent power efficiency in a small 3x3mm QFN package.

The TPS54620 is available in volume now from TI and its authorized distributors in a 3.5x3.5mm QFN package. Suggested resale pricing is $1.95 in 1,000-unit quantities. The TPS54418 has a suggested resale price of $2.15 in 1,000-unit quantities.

Optimism grows over mainland China's electronics industry

HONG KONG: Eighty-nine percent of mainland China's electronic component distributors expect revenue to grow in 2009, forecasting an average increase of 13 percent; while 55 percent of mainland China electronics manufacturers surveyed said the economic downturn has had little or no impact on their business.

The results were revealed in the ninth Annual Electronic Components Distributor Survey conducted by Global Sources' (Nasdaq: GSOL) electronics management title, Electronics Supply & Manufacturing-China (ESM-China.

This year, ESM-China asked 326 senior managers who are working for components distributors and 1,243 senior corporate, purchasing or procurement managers from electronics manufacturing companies operating in mainland China about their current challenges and plans for the future.

Mainland China manufacturers well equipped to cope with change
The survey revealed that 55 percent of manufacturers want to work with local distributors in the coming months, an increase of 18 percent as compared to last year. However, 32 percent still prefer to work with Hong Kong, Taiwanese and international distributors. Other key results include:

* Manufacturers order 54 percent of their components directly from distributors.
* Seventy-eight percent of manufacturers plan to either increase their purchases from distributors, or keep them the same, this year.
* They are selecting distributors based on availability of onsite engineering support (48 percent), reference design (45 percent), test service (30 percent) and development tools (28 percent).

Publisher of ESM-China, Mark A. Saunderson said: "As well as providing an insight into the distribution landscape for 2009, the Survey also points to a robust electronics industry where manufacturers are well-equipped to cope with the market challenges and feel positive about making a profit. Distributors can also take away some good pointers on what manufacturers are looking for, now and in the future."

Distributors changing their tactics to grow business
Mainland China distributors are also shifting their strategy to grow their business. An increasing number of them are now focusing on serving medium- and small-scale manufacturers rather than larger-scale outfits.

They are also looking at delivering more solutions to emerging, high-profit application markets including:
-- control, security, test and medical equipment;
-- computer and peripherals; and
-- automotive, avionics and military electronics.

Distributors have also implemented a number of steps to ensure the quality of their components in reaction to the demands from both the mainland China and global consumer market. These include strict supplier approval; employee training; third-party testing; purchase testing equipment and ISO certification.

Mainland China manufacturers vote for most preferred distributors
As part of the Survey, mainland China manufacturers were asked to vote for their most preferred distributors in five different categories. Winners of each category are (in alphabetical order):

Most Preferred Overseas Franchised Distributors: AECO Technology, Arrow Electronics, Avnet, Cytech Technology, Excelpoint Technology, Future Electronics, Nu Horizons Electronics, Richardson Electronics, WPG Holdings and Yosun Industrial Group.

Most Preferred Local Franchised Distributors: Asiacom Technology, Baite Electronic, China Electronic Appliance Shenzhen, Comtech Communication Technology, Honestar Technologies, Linpo, LSD Science & Technology, Road-Well, Secom Telecom and Seed Electronic Technology.

Most Preferred Independent Distributors: America II, Chitron Electronics, Compo Electronics, EVERY, Interine Electronics, Mission Electronics, Mogultech International, Pioneer Electronics, Smith & Associates and Times Brilliant Electronic.

Most Preferred Small-to-Medium Sized Distributor: Ampro Microelectronics, Burnon International, E-Shine Digital Technology, Incel Components, Jcmicon Enterprises, KuanHeng Industrial, G&T Industrial, Mornsun Electronics, Pace Electronics and Shenzhen Cestar.

Most Preferred Catalog Distributors: Mouser Electronics, P&S Information Technology, Premier Electronics and RS Components.

Emulex 8Gbps HBAs more robust, easier to manage

COSTA MESA, USA: Emulex Corp. announced that its LightPulse 8Gb/s Fibre Channel Host Bus Adapters (HBAs) have been found to be more robust, have broader interoperability and be easier to manage than Brocade 8Gb/s Fibre Channel HBAs in an evaluation report from Demartek, a firm specializing in independent analysis and lab validation testing of server, storage and security technologies.

The HBAs tested in the report were the dual-channel Brocade 825 and the Emulex dual-channel LPe12002 and single-channel LPe12000.

President of Demartek, Dennis Martin said: "We found that the Emulex LightPulse HBA product family is more feature rich and provides a wider breadth of support for server hardware, operating systems, path management and storage hardware than the Brocade HBA.

Overall, the installation process for both the HBA and the management software was easier with the Emulex HBAs and Emulex's HBAnyware management software appears to be geared for efficient deployment and use in large environments. In addition, the Emulex HBA performance was generally better than the Brocade HBA performance, especially for write operations, response time and overall CPU effectiveness."

Streamlined installation and management, unrivaled scalability, and industry-leading virtualization support make Emulex's LightPulse 8Gb/s Fibre Channel HBAs ideal for enterprise, mixed-OS and virtualized server environments. With powerful management capabilities and broad platform support, they deliver maximum performance in the broadest range of applications and environments.

The complete evaluation report can be downloaded here.

Market endorses Zecotek's CW narrow-band Ti: sapphire lasers

VANCOUVER, CANADA: Zecotek Photonics Inc., a developer of leading-edge photonics technologies for medical, industrial and scientific markets, announced that the market response to its new Continuous Wave Narrow-Band Ti: Sapphire Laser, the Tisarius-D-scan narrow-line laser, endorses Zecotek's growing reputation as a provider of leading edge photonic research tools.

Recent sales have included the prestigious University of Tuebingen (Germany), the Technische Universitat Dortmund (Germany) and Panasonic (Japan).

"We are very pleased with our progress in penetrating this very selective market in high value lasers," said Dr. A.F. Zerrouk, chairman, president, and CEO of Zecotek. "Our new auto-scanned narrow-line T&D-scan and ultra-narrow-line modules are valuable tools in the research and development of new materials and manufacturing processes. Our ability to bring these new lasers to market on time and under budget offers another example of our strength in the innovation and ability to commercialization of leading edge photonic technologies."

Zecotek's Tisarius-D-scan Narrow-Line Laser integrated system with computer control and integrated high-precision wave meter were acquired by the Technische Universitat Dortmund and Panasonic.

This integrated system represents a cost-effective solution for a smart source of radiation tuneable within a wide range of wavelengths, which is an important feature for spectroscopy of semiconductor materials and other advanced material, and other scientific applications.

Zecotek's proprietary TIS-SF-777 Ti: Sapphire Laser and FD-SE-07 Resonant Frequency Doubler has been ordered by the University of Tuebingen. This tandem device has the ability to deliver a super-narrow line of powerful radiation in the blue spectral range and provides a new tool for application in fields such as nanolithography, nanostructured materials and quantum physics where single atoms and ions are cooled, trapped, and precisely manipulated using laser beams.

Zecotek's Continuous Wave Narrow-Band Ti:Sapphire lasers are manufactured under contract by Tekhnoscan J.S. of Novosibirsk, for Zecotek Laser Systems Pte Ltd, a wholly owned subsidiary of Zecotek Photonics.

Monday, June 15, 2009

Brilliant mini laser bars for fiber-coupled laser diodes

SUNNYVALE, USA: The new generation of mini laser bars from OSRAM Opto Semiconductors offers exceptional brilliance in the wavelength range from 910 to 1020 nm.

Their output and beam parameters have been closely matched so that the enormously powerful light beam, which leaves the small laser aperture at a defined angle, can be perfectly coupled into a small fiber core diameter with a restricted acceptance angle. The new mini laser bars have been optimized for fiber injection and offer impressive brilliance. Sampling will start immediately; series production will start in early 2010.

The brilliance of a laser is a measure of the output power per unit area and solid angle, defining how much light from a mini laser bar can be efficiently injected into a glass fiber. The high brilliance of this new laser bar has been achieved by the new VLOC epitaxial structure (Very Large Optical Cavity) and new proprietary mirror coating technology.

Dr. Jörg Heerlein, Head of Laser Product Marketing at OSRAM Opto Semiconductors, commented: “Our new mini bars have a high optical output and efficiency, which enables us to offer tailor-made solutions for cost-effective fiber-coupled laser diodes.”

Mini laser bars also combine the advantages of single emitters with those of classic 1 cm bars. They are cost-effective, durable and can be easily adapted to meet the requirements of different applications thanks to their small size.

In contrast to the conventional fiber-coupled diode laser systems, the new bar structures allow more cost-effective beam-forming concepts to be used for fiber coupling. The associated reduction in system costs is a major factor in making diode laser systems more attractive for direct material processing – particularly in comparison with alternative laser solutions.

OSRAM’s brilliant mini laser bars are available in various application-specific product families, with fill factors of 10-20 percent and typical efficiencies of up to 65 percent. In addition to pumping fiber lasers, the laser bars are also used for direct micro-material processing, such as marking and micro-welding.

The brilliance of the mini laser bars is exemplified by the SPL BF series, which has a fill factor of 10 percent and provides an output of 8W per emitter at an emitter width of 100µm, with a slow-axis divergence of < 7° (the value applies to 95 percent output).

The maximum output compatible with long life is around 12 W per 100 µm emitter. With five emitters, the beam parameter product is 15 mm x mrad. With the aid of simple optics, the light from several mini laser bars can be coupled into a fiber with a core diameter of 200 µm and a numerical aperture (NA) of 0.22.

In this way, outputs from the fiber in excess of 200 W can be achieved. Depending on customer requirements, numerous further designs and specifications can be produced on the basis of the new technology.

Sunday, June 14, 2009

Taiwan photonics industry overview: PIDA

TAIPEI, TAIWAN: Accounted for 17 percent in the global market, the Taiwan photonics industry's total production value in 2007 reached $63.3 billion and it is very likely to break $90 billion in 2011, according to the statistics from Photonics Industry and Technology Development Association (PIDA).

Taiwan ranked world’s no. 1 in TFT-LCD production, no. 2 in LED packaging production value and no. 4 in solar cell production value in 2007.

The total value of its FPD industry will surpass $60 billion mark in 2009. Both, in terms of production value and capacity, Taiwan has become the world’s largest TFT LCD supplier. The production value has taken 42 percent of the global TFT-LCD and module packaging market.

Furthermore, the total production value of Taiwan solar cell manufacturers is $1.39 billion dollars. It is estimated that the total production capacity of solar cell will reach 1,148MW, with a production value of $3.13 billion dollars in 2008.

Source: PIDA, Taiwan

Friday, June 12, 2009

ST-Ericsson highly integrated RF transceiver solution for 3G handsets

SINGAPORE: ST-Ericsson today announced mass production of its 3G multi-mode, multi-band Aero4228 RF transceiver, the industry’s first HSPA/EDGE transceiver to eliminate expensive external filter components typically required to complete the RF subsystem in mobile handset designs.

Delivering an exceptional combination of performance and integration, the Aero4228 is the only solution available in the market today that effectively removes both 3G TX and RX surface acoustic wave (SAW) filters, while incorporating all low noise amplifiers (LNAs) on-chip. With the Aero4228, 3G mobile phone designers can sharply diminish the total bill of materials (BOM) and greatly reduce the cellular radio footprint in their handset designs.

“The Aero4228 stands as a testament to ST-Ericsson’s commitment to lead the industry by integrating more features and functionality into our cellular solutions in order to improve performance, reduce costs and shrink system size for our customers,” said Dan Rabinovitsj, General Manager for Cellular Systems at ST-Ericsson. “No other company has achieved a SAW-less, LNA-integrated 3G solution and we are proud to be first to market with this level of integration.”

Key features of Aero4228
* High integration, resulting in small transceiver footprint and low BOM.
* Manufactured in CMOS technology to leverage economies of scale in the highest volume process technology.
* All sensitive components, Tx/Rx VCOs, loop filters, tuning inductors and varactors integrated in CMOS silicon.
* Elimination of 3G SAW filters for transmit and receive reduces footprint and BOM.
* Integrated power management enables industry-leading power consumption.

This product includes licensed 3G technology from ACP Advanced Circuit Pursuit AG, Zollikon, Switzerland.

LEDs and PV shine in Photonics Festival in Taiwan 2009

TAIPEI, TAIWAN, Photonics Festival in Taiwan 2009: With about 360 exhibitors and 800 booths filled in Photonics Festival in Taiwan 2009, the show this year is particularly vitalized by LED and PV manufacturers -- two of the most potential industry that will lead human life to a better and greener future.

The theme of this year’s Photonics Festival in Taiwan— Green Photonics— features the link between human life and photonic technologies as well as photonic technologies or products that are energy-saving, low-/non-polluting, or able to generate or conserve energy.

The theme is represented through the specially-planned “Advanced Green Photonics Zone,” which includes biophotonics and showcases the related efforts such as photovoltaic cells, fuel cells, and LED from Taiwan academia. Panel giant AUO will also introduce its LEED (Leadership in Energy and Environmental Design) gold-certified TFT-LCD facility. Other developments such as solar cars, LED fixtures, and the model of the World Games 2009 Kaohsiung’s Main Stadium will also be demonstrated during the three-day show.

Some other featured exhibition areas include “Cross-Strait Photonics Show” and “Taiwan PV Industrial Cluster Zone.” This is the debut of Cross Strait Photonics Show in Photonics Festival in Taiwan. The organizer PIDA expects the show would serve as a platform for manufacturers from both Taiwan and China to establish connection for future business.

On the other hand, Taiwan PV Industrial Cluster Zone which is organized by three major Taiwan science parks will represent Taiwan PV industry in miniature, which is definitely a must-see to know the strength of Taiwan PV industry. In addition, winners of the 12th Outstanding Photonics Products Award will be displayed in Theme Hall to showcase their innovative design and technological breakthrough.

Key manufacturers in the industry will all attend this photonic event. LED leaders include Nichia, Cree, Epistar, Panasonic, Seoul Semiconductor, Optotech, Everlight, Genius Electronic Optical, LiteOn. In solar energy sector, key players of this year’s show include Oerlikon, Nisshinbo, Despatch, Edwards, Everphoton Energy, Lof Solar, Gintech, Delsolar, Compound Solar Technology, Chi Mei Energy, Aviso Tech, Kenmos, King Enertech, and Delta. Also, buyers and visitors from USA, Spain, France, South Africa, China, and Taiwan governmental units will also join the big event this year.

In addition to discussions on technological development and market future trend, international conferences also put stress on “green” issues to echo to the theme this year. The 2009 Market & Technology Trend Conference accompanying Photonics Festival in Taiwan and Display Taiwan exhibitions features renowned speaker from all around the world.

To name a few, for the 5th International Conference in LED Lighting Taiwan 2009, Dr. Robert Steele of Optoelectronics Strategies Unlimited is going to deliver “High Bright LED Market Overview and Forecast,” Matthias Winter from OSRAM Opto Semiconductors will speak on “Light Source Technology for Micro Projection,” Takashi Sato from Stanley will talk about the technical trend and challenges in automotive application of LEDs, and Cree’s Senior Vice President of Worldwide Sales Bob Pollock is going to share with the audience his thoughts on “Convention Fixture Replacements: Is SSL Ready Now?”.

On the 3rd International Conference in Solar Taiwan 2009, Huey-Ching Yeh, Director-general of Bureau of Energy, MOEA is going to talk about “The Future Policies of Photovoltaic Systems in Taiwan,” Scheuten Solar’s Chief Executive Officer Frans van den Heuvel will deliver “Building Integration of PV from Solar and Glass,” and Seesun Yeh from DuPont Taiwan Ltd. is going to speak on “DuPont Portfolio of Innovative Materials for Photovoltaic Module.”

Photonics Festival in Taiwan not only shows the strong performance of Taiwan photonics industry, but also provides an ideal promotion platform for global companies. Each year, more and more buyers from overseas have gathered in the exhibition hall to witness the advancement of the Taiwan photonics industry and to seize the business opportunities there.

Therefore, PIDA will continue to fulfill its commitment to provide the best service to the industry, and make Photonics Festival in Taiwan a remarkable event that shines the photonic industry worldwide.

StockerYale intros new laser products @ Laser World of Photonics

SALEM, USA: StockerYale Inc., a leading designer and manufacturer of structured light lasers, LED modules and specialty optical fibers for industrial OEMs, medical and defense markets, will unveil five new laser products at Laser World of Photonics in Munich, Germany, June 15-18, 2009, the world's leading international exhibition for laser and optical technologies.

"The introduction of these new products reflects continued R&D investment in our laser module product line, which currently represents the largest segment of our Company," stated Mark W. Blodgett, Chairman and CEO of StockerYale Inc.

"Our goal has been to broaden our product offering, including distributed product, to offer our growing customer base innovative laser-based solutions. The Company product and market strategy has focused on both the bio medical instrumentation and defense markets and based upon recent customer orders this strategy is showing meaningful results."

New products include the Lasiris PureBeam fiber-coupled laser (405 nm), which is designed for flow cytometry, confocal microscopy, bio-detection, and other high-end applications. Manufactured in the StockerYale Class 100 clean room environment utilizing the Company's proprietary welding technology, it features a single-mode polarization maintaining optical fiber delivery system and provides excellent power stability and wavelength, as well as low noise at the fiber exit.

The new Lasiris Green PowerLine pattern generator is intended for applications including hot steel inspection, glass inspection, ambient noise environments, targeting and R&D. Available in power from 50 mW up to 200 mW, this structured light laser offers a thermoelectric system that maintains a constant laser diode temperature, resulting in a better lifetime and power stability in addition to external focus capability.

The company's UK subsidiary, Photonic Products Ltd will unveil three new products: a new range of micro laser diode collimators, which achieve the technically difficult feat of combining high alignment accuracy with a miniature package; a line of variable focus industrial laser diode modules and SANYO's new low-noise, green DPSS laser module for bio-medical and other demanding applications.

The SANYO laser module has output power of 10mW and RMS noise level of 0.5% and is part of SANYO's popular DLX range of 532nm DPSS TEC laser modules. Photonic Products Ltd. is an authorized SANYO distributor.

Tuesday, June 9, 2009

PC TV tuner market faces myriad of new challenges

SCOTTSDALE, USA: Demand for PC-TV tuners has fallen off from 2008’s level due to the worldwide economic recession, reports In-Stat.

The market also faces fundamental challenges, including slow consumer demand, increased competition from online television and other programming sources, and lower prices due to a shift from hybrid analog/digital tuners to digital-only tuners. One hopeful development is that Microsoft’s Windows 7 and the new version of Media Center will include better connectivity solutions for PC-TV tuners.

“Opportunities for growth will be for hybrid analog/digital tuner manufacturers to increase share by lowering prices, or for new entrants to leapfrog the analog and hybrid segments by aggressively targeting the emerging digital-only segments, albeit with lower margins,” says Gerry Kaufhold, In-Stat analyst. “Overall, selling PC TV tuners is going to be a tougher business going forward.”

Recent research by In-Stat found the following:
* 2009 unit shipments will see a net decline of nearly 11 percent. Moderate unit growth will resume in subsequent years, driven nearly exclusively by digital-only tuner shipments.
* Worldwide PC-TV tuner revenue likely peaked in value during 2008, at about $1.4 billion.
* The European region is by far the largest geographic market for PC TV tuners, representing more than 50% of worldwide revenue.
* PC tuner growth in notebooks will significantly outpace other segments, which include desktops, retail sticks, and retail add-in cards.
* ATSC M&H mobile video in the US may create significant upside for digital-only tuners.

Delta unveils new range of online UPS for SMEs, corporates

NEW DELHI, INDIA: Delta Group, a leader in power management solutions, has introduced a new range of 1 KVA to 3 KVA UPS systems called E -Series in the Indian market.

The company has strengthened its portfolio by announcing the launch of E-Series UPS for its clients in small and medium enterprises (SMEs) and corporate segment. The company's current product portfolio includes comprehensive UPS solutions from 1 kVA to 4000 kVA for various growth verticals such as IT/ITes, Telecom, Banking and Finance, Process Control, Biotech, Healthcare, Retail, Infrastructure and Government.

The new range of single phase E-Series UPS system is a true on-line design with double conversion technology to provide high performance and reliability for mission critical applications in compact size.

SMEs are increasingly becoming network dependent. Many have implemented ERP increasing the importance of uptime. Delta understands the SME sectors' requirement has high focus on its business growth and therefore, cannot afford business downtime even for a short period of time due to any issues with peripheral equipment like UPS

Adding on to the unique features and technical advantages of the new UPS series, the Sales Director for Delta UPS Systems in India, Deepak Sharma said: "Breaking the traditional barriers and concepts, the new E-series UPS is built on plug-n-play style, has intelligent self diagnostic functions, light-weight and provides freedom to choose extended runtime options. This launch is a definite step towards spreading our footprint across the country through the introduction of new models and strengthening sales & service support network."

Among one of the fastest growing UPS companies in India, Delta's intends to target the huge SMB segment, which accounts for 50 percent of industrial output in India.

Cree demos 120W and 180W high-efficiency GaN HEMT amplifiers

DURHAM, USA: Cree Inc. announced demonstrations of its latest broadband GaN HEMT transistors (the CGH40120F and CGH40180PP) at the 2009 IEEE/MTT-S International Microwave Symposium being held this week in Boston.

The demonstration amplifiers feature high efficiency and high power under continuous-wave (CW) operation, with typical power-added efficiencies (PAE) of 70 percent at saturated powers of 120W for the CGH40120F and 180W for the CGH40180PP in class A/B demonstration amplifiers.

"A number of very-high-efficiency amplifier architectures, routinely used at lower frequencies for audio and UHF applications, are being realized at much higher RF and microwave frequencies using GaN transistors," said Jim Milligan, Cree director for RF and microwave products.

"Published research indicates greater than 80 percent PAE using Class D, E, F and J amplifier architectures, with Cree GaN HEMT transistors, at frequencies over 2 GHz. More-typical Class A/B operation can also offer exceptional efficiency, validated by the demonstrations we are giving this week. Cree GaN transistors offer system designers a wide range of choices, supporting diverse application requirements."

The CGH40120F and CGH40180F are the newest members of Cree's general-purpose transistor product family. Samples and fixtures are available through Digi-Key. Large-signal models for Agilent's ADS or AWR's MWO simulators are available directly from Cree.

Monday, June 8, 2009

HAVELLS forays into LED lighting segment

NEW DELHI, INDIA: Havells India Ltd, a US$1 billion plus company and one of the largest and fastest growing electrical and lighting companies in the world, has introduced “Endura Lite”, a revolutionary product in the light-emitting-diodes (LED) Market. LED is the future lighting source in India and are at the forefront of technological innovations.

“Endura Lite” by Havells, will consume 50 percent less energy than traditional sources. It is four times more energy efficient than regular incandescent lamps, because a larger part of the energy is converted into light than is lost as heat.

There is no use of glass or filament in these kind lightings as compared to in normal lightings, hence “Endura Lite” has a phenomenally long lifespan with average life of 50,000 hours. This LED light not only reduces the electricity bills but also improve the quality of working conditions at commercial establishments and offices.

These lamps are easy to install and do not emit UV radiation. It is smaller in size and lighter in weight. Endura Lite is suitable to fit in standard MR 16 fixtures and has been tested for its high shock resistance and durability.

These new age lighting innovations are designed to give higher efficiency and consume low power and has environment friendly luminous source, which make it the best in LED lighting category.

Endura Lite is favorable to be used in the following spaces like, Jewellery Mart, Designer Showrooms, Recreational Areas, High-end specialty shops, Auditoriums, Theaters, Art Galleries and Museums, Endura Lite transforms the look of an ordinary space into an extraordinary one. The exclusive range is available in 3x1w and 1x3w with two colors i.e. Day light white and warm white.

Friday, June 5, 2009

New power AC switches feature built-in surge protection

SINGAPORE: Two new families of AC power switches from STMicroelectronics simplify the design of domestic appliances and industrial equipment by integrating surge protection that meets the international standard IEC 61000-4-5, which is usually implemented using external components.

The 10A ACST10 and 12A ACST12 families complete ST’s range for applications from 2A to 12A. They can be used for protecting washing-machine motors, compressors for refrigerators or air-conditioning units, or in industrial drives.

The devices replace conventional electromechanical relays or TRIAC-based power switches, which require additional external components to prevent damage caused by voltage surges in the AC supply or by energy stored in the load.

Several other external components can also be eliminated since the switch input can be connected directly to the appliance’s electronic control unit, whereas a relay or TRIAC typically requires a separate input driver. In addition, designers must usually add components to prevent unpredictable turn-on or turn-off of the motor, but these, also, are not required when using the ACST10 or ACST12.

Package options include the industry-standard through-hole TO-220AB and plastic insulated TO-220FPAB packages for the ACST10 family, and TO-220AB or surface-mount D2PAK for the ACST12 family. The devices are in production now at prices from $0.51 for ACST10 devices and $0.61 for the ACST12 family, for orders over 10,000 units.

Thursday, June 4, 2009

OSRAM raises bar on LED performance for projection applications

SUNNYVALE, USA: OSRAM Opto Semiconductors has expanded its LED portfolio for the projection market with two new LEDs, OSTAR Compact and OSTAR Power Projection. OSTAR Compact is designed for small, efficient systems in cell phones, PDAs and MP4 players.

OSTAR Power Projection is targeted at high-performance projection applications such as home cinema systems with displays of 70 inches and more. OSRAM’s LED portfolio now provides full coverage of the projection system range from 1W all the way up to 300W.

OSTAR Compact expands the OSRAM family of LEDs for small applications at the lower end of the performance range. It measures only 3.9 mm x 3.6 mm and is available in red, blue, green and white. These new small LEDs are cost-effective components, particularly for pico projectors for small mobile devices.

Manufacturers wanting very compact units can use a double-chip version that contains a red chip and a blue chip in one LED. This saves space compared with the usual configuration of three individual LEDs (red, blue, green). As an SMT component, the LED can be easily integrated into standard manufacturing processes. Integrated ESD protection diodes guard against electrostatic effects.

The OSTAR Power Projection LED brings a new dimension to projection applications delivering high performance and low thermal resistance. It can be operated at a maximum of 36A and produces light of impressive brightness. Typical values are 2700 lm in red, 3500 lm in green and an optical output of 13 W in blue.

While the dimensions of 45 mm x 25 mm seem large for a standard LED, the thermal resistance is only 0.77 K/W. This LED is suitable for all types of cooling, including water cooling. A uniform cooling system can therefore be used for all colors because the junction temperature is the same for all colors (125°C).

“LEDs will one day become the standard for all projection applications, including high-end applications,” said Wolfgang Schnabel, Marketing Manager LED Projection at OSRAM Opto Semiconductors. “We are well positioned for this swift migration of LEDs into projection applications and offer several OSTAR LED versions, namely Compact (up to 25 W), SMT (10 to 40 W), Projection (25 to 70 W) and Power Projection (90 to 150 W), to cover numerous applications -– from cost-effective pico projectors to home cinema equipment as well as mobile projection systems for mid-range applications.”