ACT512

ACT512 Rev 4, 13-Feb-14 ActiveQRTM Quasi-Resonant PWM Controller FEATURES CCM and Quasi-Resonant Operation Adjustable up to 75kHz Switching Frequency OCP/OLP Protection Integrated Patented Frequency Foldback Technique Integrated Patented Line Compensation Built-in Soft-Start Circuit Line Under-Voltage, Thermal, Output Over- voltage, Output Short Protections Current Sense Resistor Short Protection Transformer Winding Short Protection 100mW Standby Power Complies with Global Energy Efficiency and CEC Average Efficiency Standards Tiny SOT23-6 Packages ACT512 integrates comprehensive protection. In case of over temperature, over voltage, winding short, current sense resistor short, open loop and overload conditions, it would enter into auto restart mode including Cycle-by-Cycle current limiting. ACT512 is to achieve no overshoot and very short rise time even with a big capacitive load with the built-in fast and soft start process. In full l...