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60-V integrated power modules extends power capability of low load-impedance Class D audio systems

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By eeNews Europe

The 60 V IR4321M and IR4322M complement the existing product offering and expand the power capability of low load-impedance Class D audio systems in applications including car audio systems, tabletop audio systems, active speakers and musical instruments (with integrated amplifiers).

The combination of an advanced audio controller IC with MOSFETs fully optimized for audio performance results in improved efficiency, THD, and EMI, allowing the IR432xM 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.

Additional features common to the family include over-current protection, thermal shutdown, internal/external shutdown and floating differential input.

Two reference designs, the IRAUDAMP21 and IRAUDAMP22, featuring the IR4321M and IR4322M respectively are also available.

Availability and Pricing

Pricing begins at $1.71 for the IR4321 in 10,000-unit quantities. Production orders are available immediately. Prices are subject to change. The new devices are MSL2 industrial-qualified and RoHS compliant.

More information about the IR4321M and IR4322M integrated power modules at
www.irf.com/product-info/datasheets/data/ir4301.pdf

www.irf.com/product-info/datasheets/data/ir4302.pdf


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