INTERNATIONAL RECTIFIER - THE POWER MANAGEMENT LEADER

IR Expands PowIRaudio™ Family of Integrated Power Modules with the Introduction of 40V IR4311M and IR4312M

EL SEGUNDO, Calif. — International Rectifier, IR® (NYSE: IRF), a world leader in power management technology, today announced the expansion of its PowIRaudio™ family of integrated power modules with the introduction of the IR4311M and IR4312M. The 40V IR4311M and IR4312M offer a compact, heatsink-free solution for low power Class D audio applications including 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 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.

“The new 40V IR4311M and IR4312M PowIRaudio™ modules simplify system design by eliminating the need for a heatsink,” said Jun Honda, Director of Audio Systems Engineering, IR’s Energy Saving Products Business Unit.

Additional features common to the family include over-current protection, thermal shutdown, internal/external shutdown and floating differential input. The IR4312M also offers clip detection.

Two reference designs, the IRAUDAMP15 and IRAUDAMP18, featuring the IR4311M and IR4312M respectively are also available.

Module Specifications

Part Number Number of Channels Power Supply Voltage Peak Output Power
(RMS per CH)
Package
IR4311M 1 40V or +/- 20V 35W PQFN 5x6mm
IR4312M 2 40V or +/- 20V 35W PQFN 7x7mm

Reference Designs

Reference Design Featured Part Descriptions Output Power
IRAUDAMP15 IR4311M IR4311 single power supply 35W*2ch 4? load/no heatsink
IRAUDAMP18 IR4312M IR4312 single power supply 35W*2ch 4? load/no heatsink

Datasheets and application notes are available via the part number links found above.

Availability and Pricing

Production orders are available immediately. Prices are subject to change. The new devices are MSL2 industrial-qualified and RoHS compliant.

 
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