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BUY TDA4862 https://www.utsource.net/itm/p/440736.html
PFC-DCM discontinuous conduction mode control IC for SMPS; Package: P-DIP-8; Applications: el. Ballast, SMPS; Output: MOSFET Gate Driver; VCC min: 11.0 V; VCC max: 19.0 V; ICC max: 50.0 mA;
The TDA4862 is a monolithic integrated circuit from Philips Semiconductors. It is a high-efficiency, low-power, low-voltage, dual-channel, Class-D audio amplifier. Description: The TDA4862 is a high-efficiency, low-power, low-voltage, dual-channel, Class-D audio amplifier. It is designed for use in portable audio applications such as mobile phones, portable media players, and other audio devices. The TDA4862 is capable of delivering up to 2.5W of output power per channel into a 4Ω load with a 5V supply. Features: Low-power, low-voltage operation High efficiency: up to 90% Low quiescent current Low distortion Low output noise Short-circuit protection Thermal protection Output power: 2.5W per channel into 4Ω load with 5V supply Applications: Portable audio devices Mobile phones Portable media players Other audio devices (For reference only)