Compact Modules Reduce Component Count

The PowIRaudio family of integrated power modules has been developed by International Rectifier 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 compact package 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 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. 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 utilization of a smaller size of Class D topology. Available immediately, pricing for the MSL2 industrial-qualified and RoHS compliant IR43xxM begins at $2.00 each/10,000.