International Rectifier, IR ® (NYSE: IRF), a world leader in power management technology, today introduced the PowIRaudio™ family of integrated power modules for 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 to offer a highly efficient, compact solution that reduces component count, shrinks PCB size up to 70 percent and simplifies Class D amplifier design.

The combination of an advanced audio controller IC with MOSFETs fully optimized for audio performance results in improved efficiency, THD, and EMI, allowing the IR43xxM family to operate without a mechanical heatsink over a wide power supply range on either a single or split power supply. High voltage ratings and noise immunity ensure reliable operation over various environmental conditions.

“IR’s existing Class D solutions are proven to offer equivalent audio performance to Class AB amplifiers while providing the additional benefits of higher efficiency and smaller size,” said Jun Honda, Director of Audio Systems Engineering, IR’s Energy Saving Products Business Unit. “The high level of integration of our new PowIRaudio modules enables customers to quickly and easily design their high performance Class D Audio systems.”

The single channel IR4301M and dual channel IR4302M offer the flexibility and convenience of building stereo amplifier and multi-channel designs in various channel configurations, while the devices’ 5x6 mm and 7x7 mm PQFN packages enhance the benefit of utilizing a smaller size of Class D topology.

Other key features common to the family include over-current protection, thermal shutdown, internal/external shutdown and floating differential input. The IR4302M also offers clip detection.

A wide range of reference designs are available to further simplify the design of systems using these devices.

More information is available on the International Rectifier website at http://www.irf.com/whats-new/nr120517.html

Availability and Pricing

Pricing for the IR43xxM begins at US $2.00 in 10,000-unit quantities. Pricing is subject to change without notice. Production orders are available immediately. The new devices are MSL2 industrial-qualified and RoHS compliant.

About International Rectifier

International Rectifier (NYSE:IRF) is a world leader in power management technology. IR’s analog and mixed signal ICs, advanced circuit devices, integrated power systems and components enable high performance computing and reduce energy waste from motors, the world’s single largest consumer of electricity. Leading manufacturers of computers, energy efficient appliances, lighting, automobiles, satellites, aircraft and defense systems rely on IR’s power management benchmarks to power their next generation products. For more information, go to www.irf.com.

Patent and Trademark Notice

IR ® is a registered trademark of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders.

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