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HM8872
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Shenzhen Huazhimei Semiconductor Co., Ltd
HM8872 데이터시트 - Shenzhen Huazhimei Semiconductor Co., Ltd
Shenzhen Huazhimei Semiconductor Co., Ltd
Overview
● HM8872 is an FM interference-free, class AB/D optional power amplifier. At 7.4V operating voltage, the maximum driving power is 8W (4Ω, BTL load, THD<10%), the total harmonic distortion and noise in the audio range are less than 1%, and HM8872 requires very little. The application circuit is simple, with only a few peripheral components and an integrated feedback resistor; the output does not require external coupling capacitors or lift-up capacitors and buffer networks.
● HM8872 adopts ESOP8 package, which is particularly suitable for use in portable systems with large volume and small weight. HM8872 has an internal overheating automatic shutdown protection mechanism; it works stably, the gain bandwidth product is up to 2.5MHz, and the unit gain is stable. The feedback resistor is built-in and configured externally. , parameters can adjust the voltage gain and best sound quality of the amplifier for easy application. The perfect solution for your USB subwoofer and amplifier.
Features
● No interference to FM, high efficiency, excellent sound quality
● Class AB/D switching
● 8W output power (10% THD, 7.4V power supply, 4Ω load)
● 3 5W output power (10% THD 5V power supply 4Ω load)
● Wide operating voltage range: 2.5V~8.5V
● Suppression of pop sound during power-on and power-off
● External gain adjustable, integrated feedback
● Low shutdown current and low EMI
● No need to drive output coupling capacitor, bootstrap capacitor and buffer network
● Unit gain stable
● Overheating protection Overvoltage protection
● Adopt ESOP8 package
Application
● Personal digital assistant (PDA), laptop computer, etc.
● Desktop computer
● Low-voltage audio system, USB, 2.1/2.0 multimedia audio
● Portable DVD player
● Portable speakers
● LCD monitor/projection TV
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