IRVINE, USA: Microsemi Corp., a leading manufacturer of high performance analog/mixed signal integrated circuits and high reliability semiconductors, has expanded its commercial LCD TV market presence with a new energy-efficient system solution optimized for High Voltage LCD Integrated Power Supply (HV-LIPS) TV designs.
The Microsemi system-engineered solution combines a power transistor tailored for large-screen LCD TV designs with the company's latest high-voltage backlight inverters and CCFL controllers. Designated the APT15F50KF FREDFET, the new transistor is based on Microsemi's advanced Power MOS8™ technology.
"By combining our new APT15F50K/KF FREDFET with LX6503A/LX6523A CCFL inverter controllers in this comprehensive reference design, we provide customers with a quick-to-market, optimized, turnkey LCD TV backlight system solution that brings outstanding performance, lower device count, and reduced cost to LCD TVs," said Philip Zuk, Marketing Manager in Microsemi's Power Products Group."
Microsemi's LX6503A and LX6523A high-performance CCFL controllers feature superior PureBLACK CCFL image quality and are optimized for small- to larger-sized LCD TVs and other multi-lamp LCD display systems. They enable cost-optimized bill of material solutions for off-power-factor-corrected HV-LIPS inverter applications.
With simple external circuitry, the controllers can drive the APT15F50K/KF FREDFET in either push-pull, half-bridge, or full-bridge CCFL inverter configurations. Microsemi has a complete documentation package for the LCD television backlight controller reference design, including description, schematics, bill-of-materials, Gerber files, and evaluation guidelines.
Microsemi offers the APT15F50K in TO-220 and TO-220 Full-Pack isolated packages suited for 52-inch-and-larger displays. Additional devices, such as the APT12F60K, address the 46- to 52-inch segment. Future Power MOS8 designs will be optimized for smaller screen sizes.
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