Showing posts with label Diodes Inc.. Show all posts
Showing posts with label Diodes Inc.. Show all posts

Wednesday, July 22, 2009

Diodes Inc. intros 15 MOSFETs for LCD TV and monitor backlighting markets

DALLAS, USA: Diodes Inc. a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete and analog semiconductor markets, has expanded its broad MOSFET offering with the introduction of 15 new devices designed specifically for LCD TV and monitor backlighting markets.

Provided in industry standard TO252 and SO8 packaging, these MOSFET devices deliver the high-power handling and fast switching that are required by high efficiency Cold Cathode Fluorescent Lamp (CCFL) drive architectures.

The 30V rated, SO8 packaged dual n-channel DMN3024LSD suits push-pull inverters and offers a space saving advantage over discrete component alternatives. In full and half bridge topologies requiring complementary pairs, the DMC3028LSD provides an integrated high performance n- and p-channel MOSFET combination.

The extended TO252 MOSFET product family meets the higher power handling requirements with optimized on-resistance and gate charge performance for backlighting applications with multiple lamps.

These 12 new TO252 MOSFETs consist of nine n-channel and three p-channel parts, covering the drain-source voltage, which ranges from 20V to 60V.

Friday, July 10, 2009

Diodes Inc. intros DAC and pre-amplifier audio device

DALLAS, USA: Diodes Inc. has released an 8-channel DAC (digital-to-analog converter) and pre-amplifier chip. This new device offers designers of audio/video receivers (AVRs) and add-on sound cards the opportunity to improve audio performance, while also reducing costs.

As an addition to the Diodes’ Direct Digital Feedback Amplifier (DDFA) product line, the ZXCZM800 dramatically reduces circuit complexity. In both consumer and professional audio product designs that currently use multiple quality 2-channel DACs to achieve mid- to high-level audio performance, the ZXCZM800 significantly reduces component count and printed circuit board (PCB) real estate.

In high-performance differential mode, the DDFA product line delivers a dynamic range (DNR) up to 126dB. Additionally, Diodes’ solution provides equal and, oftentimes, improved sound quality of typical mid-range AVRs and sound cards that currently produce a DNR of 112dB.

For designers looking to expand a product’s feature set, the ZXCZM800 also offers pre-amplifier digital signal processor (DSP) features, which can be easily programmed using an existing system host processor.

The ZXCZM800 DAC and pre-amplifier chip is supported by an 8-channel demonstration board, which is available for volume production DAC and pre-amplifier designs.

Wednesday, July 1, 2009

Diodes Inc. intros LED drivers for small LCD screens

DALLAS, USA: Diodes Inc., a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete and analog semiconductor markets, has introduced a family of three new LED drivers.

These provide a cost-effective and small form factor solution for small LCD screens used across a wide range of portable consumer electronics, such as portable media players, personal navigation devices and digital photo frames.

The AP572x DC-DC boost LED driver is specifically designed for LCD screens that are less than five inches and require uniform backlighting by LEDs. Driving the LEDs in series ensures constant screen brightness.

A 1.2MHz switching frequency enables the AP572x to utilize smaller value inductors, and the very compact 2mmx2mm device footprint optimizes the LED backlighting solution size for small LCD screens that are used in a host of different systems.

The AP572x provides built-in protection features that improve reliability, including over-voltage protection that detects open circuit loads; under-voltage lock-out for safer operation; and a soft start feature that lowers the in-rush current, reducing stress on the LED driver.

The AP572x LED driver family is offered in SOT23-6 and TDFN2020C-6 packages. The SOT23-6 packaged devices are direct replacements for existing industry standard parts, and the 0.1V, 0.25V and 0.31V feedback voltage options provide design engineers further versatility.

The TDFN2020C-6 packaged devices allow significant PCB area savings. Device operating ambient temperature range is from -40 to 85oC. AP572x family devices are available through standard distribution channels.

Friday, May 22, 2009

MOSFET H-bridges optimize DC fan and inverter designs

DALLAS, USA: Diodes Inc., a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete and analog semiconductor markets, has announced a range of four H-bridge MOSFET packages that are set to dramatically simplify DC fan and Cold Cathode Fluorescent Lamp (CCFL) inverter circuits by reducing both component count and PCB size in space constrained applications.

Two 30V H-bridges, the ZXMHC3A01N8 and ZXMHC3F381N8, are well-suited for 12V DC fan and inverter applications and offer users a choice of low RDS(ON) performance. The 60V rated ZXMHC6A07N8 and 100V rated ZXMHC10A07N8 are industry firsts and are targeted at 24V DC and 48V DC motor control circuits, respectively.

Featuring dual complementary pairs of N- and P-type MOSFETs in an SO8 package, the ZXMHC parts can replace either four discrete SOT23 packaged MOSFETs or two SO8 complementary MOSFET packages.

The proprietary packaging enables significant reductions in the PCB footprint by at least 50 percent and in overall inventory cost for a wide range of existing motor or other inductive load drives.