Product News: Electronic Components & Devices

FREDFET boosts energy efficiency of large-screen LCD TVs.

Press Release Summary:

Mar 17, 2010 - Based on Power MOS8(TM) technology, APT15F50KF FREDFET integrates power transistor tailored for large-screen LCD TV designs with high-voltage backlight inverters and CCFL controllers that provide PureBLACK(TM) CCFL image quality. With external circuitry, controllers can drive FREDFET in push-pull, half-bridge, or full-bridge CCFL inverter configurations. Available in TO-220 and TO220 Full-Pack isolated packages, device is suited for 52 in. and larger displays.

Microsemi Corporation - Aliso Viejo, CA

Original Press Release

Microsemi Launches New Power MOS8(TM) FREDFET to Boost Energy Efficiency of Large-Screen LCD TVs With PureBLACK(TM) Backlighting, Optimizes Performance, Cuts System Cost

Press release date: Jan 01, 2010

IRVINE, Calif. -- Microsemi Corporation (Nasdaq:MSCC), 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(TM) technology.

"By combining our new APT15F50K/KF FREDFET with LX6503A(TM)/LX6523A(TM) 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."

Key APT15F50KF Features
-- Low trr (<190ns) for high reliability
-- Fast switching low EMI
-- Ultra low Crss for improved noise immunity
-- Low gate charge, Qg
-- Avalanche energy rated

Microsemi's LX6503A(TM) and LX6523A(TM) high-performance CCFL controllers feature superior PureBLACK(TM) 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(TM) designs will be optimized for smaller screen sizes. Technical information on the APT15F50K and APT12F60K devices is available on the Microsemi website, Samples can be ordered from this site, or from Microsemi sales representatives and authorized distributors.

About Microsemi
Microsemi Corporation, with corporate headquarters in Irvine, California, is a leading designer, manufacturer and marketer of high performance analog and mixed-signal integrated circuits, high reliability semiconductors and RF subsystems. The company's semiconductors manage and control or regulate power, protect against transient voltage spikes and transmit, receive and amplify signals.

Microsemi's products include individual components as well as integrated circuit solutions that enhance customer designs by improving performance and reliability, battery optimization, reducing size or protecting circuits. The principal markets the company serves include implanted medical, defense/aerospace and satellite, notebook computers, monitors and LCD TVs, automotive and mobile connectivity applications. More information may be obtained by contacting the company directly or by visiting its website at