IR SmartRectifier IC Named Finalist in EDN China Innovation Awards

International Rectifier (IR), a provider of power management technology, announced the IR1168 SmartRectifier IC for AC-DC power converters for high-end LCD TVs has been selected as a finalist in the 2009 EDN China Innovation Awards.

IR explained that its 200V dual smart secondary-side rectifier driver IC is designed to drive two N-Channel power MOSFETs used as synchronous rectifiers (SR) in resonant half-bridge topologies. In contrast to traditional current transformer SR methods, the IR1168 accurately determines turn-on and turn-off based on MOSFET drain sensing voltage in close proximity to zero current transition, eliminating the need for additional components to simplify design.

Co-designed with IR's DirectFET MOSFETs, which feature IR's latest Trench silicon and packaging technology, the IR1168-based solution delivers an efficiency improvement of 1.5 percent for a standard 240W LCD TV switch mode power supply (SMPS) and a reduction of rectifier device temperature of 25 degrees C while shrinking board size by two thirds.

"Developing innovative, energy-efficient products such as the IR1168 SmartRectifier IC are at the heart of IR's mission, and we thank the editors of EDN China for recognizing the advancements being made at the leading edge of power management electronics," said Paul Rolls, IR's senior vice president, worldwide Sales.

The IR1168, featuring IR's proprietary high-voltage IC technology, supports burst mode operation to deliver efficiency benefits even at light loads. Ruggedness and noise immunity are accomplished using an advanced blanking scheme and double-pulse suppression that allows reliable operation in fixed and variable frequency applications. Other key features include maximum 500kHz switching frequency, anti-bounce logic and UVLO protection, 4A peak turn-off gate drive current, micropower start-up and ultra low quiescent current, 10.7V gate drive clamp, 70ns turn-off propagation delay and a wide Vcc operating range from 8.6V to 18V.

A panel of industrial experts and EDN China's technical editors selected the finalists in this year's Innovation Award competition. Readers will select the winners through an online ballot available at EDN China's website until September 21. Finalists will be honored and winners announced at EDN China's award presentation ceremony which will take place in November in Shenzhen, China.

EDN, an electronics design magazine, is part of Reed Electronics Group, an electronics industry information provider.

EDN China's website:

http://award.ednchina.com/

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