Power modules for audio shrink PCB 70%

The IR43xxM PowIRaudio family of integrated power modules target high-performance home theater systems and car audio amplifiers. The new devices integrate a PWM controller and two digital audio power MOSFETs in a single package that reduces component count, shrinks PCB size up to 70%, and simplifies Class D amplifier design.

The power module operates without a mechanical heat sink over a wide power supply range on either a single or split power supply. The single-channel IR4301M and dual-channel IR4302M devices enable building stereo amplifier and multichannel designs in various channel configurations, and are available in 5 x 6-mm and 7 x 7-mm PQFN packages. Other features include overcurrent protection, thermal shutdown, internal/external shutdown, and floating differential input. The IR4302M also offers clip detection. (From $2.00 ea/10,000 — available now.)

By Paul O’Shea

International Rectifier , El Segundo , CA
Sales 310-252-7105
www.irf.com