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HM8878
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Shenzhen Huazhimei Semiconductor Co., Ltd
HM8878 데이터시트 - Shenzhen Huazhimei Semiconductor Co., Ltd
Shenzhen Huazhimei Semiconductor Co., Ltd
Description
HM8878 is a high efficiency, filterless 7.5W mono Class F audio amplifier.
The single-ended input architecture and extremely high PSRR of HM8878 effectively improve the HM8878’s ability to suppress RF noise. The filter-free PWM modulation structure and built-in gain method reduce external components, PCB area and system cost, and simplify the design. Up to 90% efficiency, fast startup time and tiny package size make the HM8878 an excellent choice for plug-in speakers and other portable audio products.
Features
◾ Class D output power:
-7.5W (VDD=6.0V, RL =2 Ω, THD+N=10%)
-5.6W (VDD=5.0V, RL =2Ω, THD+N=10%)
◾ Class AB output power:
-7.3W (VDD=6.0V, RL =2Ω, THD+N=10%)
-5.5W (VDD=5.0V, RL =2Ω, THD+N=10%)
◾ Operating voltage: 2.5V to 6.0V
◾ Low distortion and low noise
◾ Boot POP sound suppression function
◾ Shutdown current is less than 1uA
◾ Overheating protection function
Application
◾ Loudspeaker
◾ Portable speakers/card speakers
◾ Card speakers / USB speakers
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