ACT412 Datasheet | Active-Semi

ACT412 Rev 1, 30-Oct-13 Active PSRTM Quasi-Resonant PWM Controller Features - Patented Primary Side Regulation Technology - Quasi-Resonant Operation - Adjustable up to 120k Hz Switching Frequency - +/-5% Output Voltage Regulation - Constant Power Operation Mode for Fast Start-up and Motor Drive Applications - Integrated Line and Primary Inductance pensation - Built-in Soft-Start Circuit - Line Under-Voltage, Thermal, Output Over- voltage, Output Short Protections - Current Sense Resistor Short Protection - Transformer Short Winding Protection - Less than 100m W Standby Power - plies with Global Energy Efficiency and CEC Average Efficiency Standards - Tiny SOT23-6 Packages mode including cycle-by-cycle current limiting. ACT412 is to achieve no overshoot and very short rise time even with big capacitive load (10000µF) with the built-in fast and soft start process, . The Quasi-Resonant (QR) operation mode can effectively improve efficiency, reduce the EMI...