Infineon Technologies MERUS™ multichip module

The MERUS™ MA5332MS multichip module offers the same or even higher output power as monolithic alternatives without a heatsink and 50 percent less footprint. This MCM (multi-chip module) solution integrates a dual-channel PWM controller, a high-voltage gate driver, and 4 low R_DS(ON) MOSFETs. It includes standard class D protection features for reliable operation over various environmental conditions. The MA5332MS’ 7x7 mm PG- IQFN-42 package showcases the benefit of a small footprint, high power density, and operation without a heatsink. 

Key features

• Integrated Infineon’s best-in-class mid voltage MOSFET with low R_DS(ON)
• 100V high breakdown voltage
• Over-current, over-temperature and under-voltage protections with self-reset feature
• Enables heatsink-less solution compared to same power level monolithic approach

Additional features

• Enables high power SE (single-ended) design with reduced bus capacitors and output filters from low voltage BTL approach
• Simplifies Class D design and eliminates the need for external protection circuitry

Applications

• Soundbar subwoofer
• Aftermarket car audio system
• Active speaker