时间：
2020
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12
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17
DESCRIPTION The ZCC6908HV is a Low-Drop Diode Emulator IC that, combined with an external switch, replaces Schottky diodes in high-efficiency Flyback converters. The chip regulates the forward drop of an external Synchronous Rectifier (SR) MOSFET to about 40mV and switches it off as soon as the voltage becomes negative. ZCC6908HV can generate its own supply voltage for battery charging applications with low output voltage or high side rectification applications. A programmable ringing detec...