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4,185 pcs
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4185 pcs | On Request | 1 | On Request | On Request | 16+ | On Request | On Request |
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The MA12040 from Infineon is a super-efficient audio power amplifier IC designed with proprietary multi-level switching technology. It operates from a wide supply voltage range of +4V to +18V (PVDD) and a +5V system supply (A/DVDD). This amplifier is capable of filterless configurations at full rated power, making it suitable for various audio products.
Key features include digital power management for optimizing power loss and EMI, a 4th order feedback loop for low distortion and high PSRR, and flexible output stage configurations from single-ended to parallel-BTL. It offers selectable gain settings of 20dB/26dB and supports output configurations for 2.0, 2.1, 4.0, and 1.0 systems. The device provides protection against DC, short-circuits, over-temperature, and under-voltage situations, with error reporting via I2C.
With high power efficiency, it boasts idle power dissipation of less than 100mW and efficiencies greater than 79% at 1W and 92% at full power. Audio performance includes a dynamic range of over 107dB and low THD+N of 0.003% at high output levels. The MA12040 is available in a 64-pin QFN package with an exposed thermal pad (EPAD) for heatsink-free operation.
Applications for the MA12040 include battery-operated speakers, wireless and docking speakers, soundbars, multiroom systems, and home theater systems.
The MA12040 operates from a +4V to +18V supply voltage for PVDD and a +5V supply for A/DVDD.
The MA12040 provides 2x40W peak output power at 18V PVDD, 4Ω load, and 10% THD+N.
The MA12040 delivers 2x20W continuous output power at 8Ω load, 18V PVDD, PMP4, and 10% THD+N without a heatsink.
The MA12040 offers over 79% efficiency at 1W output power and over 92% efficiency at full power.
The idle power dissipation for the MA12040 is less than 100mW under 18V PVDD with all channels switching.
The MA12040 is supplied in a 64-pin QFN package with an exposed thermal pad (EPAD).
Yes, the MA12040 allows for filterless configurations at full rated power.