FSCQ1265RT

FSCQ-Series — Green Mode Fairchild Power Switch (FPS™) January 2014 FSCQ-Series: FSCQ0565RT / FSCQ0765RT / FSCQ0965RT / FSCQ1265RT / FSCQ1565RT Green Mode Fairchild Power Switch (FPS™) Features  Optimized for Quasi-Resonant Converter (QRC)  Advanced Burst-Mode Operation for under 1 W Standby Power Consumption  Pulse-by-Pulse Current Limit  Overload Protection (OLP) – Auto Restart  Over-Voltage Protection (OVP) – Auto Restart  Abnormal Over-Current Protection (AOCP) – Latch  Internal Thermal Shutdown (TSD) – Latch  Under-Voltage Lockout (UVLO) with Hysteresis  Low Startup Current (Typical: 25 μA)  Internal High Voltage SenseFET  Built-in Soft-Start (20 ms)  Extended Quasi-Resonant Switching Applications  CTV  Audio Amplifier Description A Quasi-Resonant Converter (QRC) typically shows lower EMI and higher power conversion efficiency compared to a conventional hard-switched converter with a fixed switching frequency. Therefore, a QRC is well suited for noise-sensitive applications, such as color TV and audio. Each product in the FSCQ series contains an integrated Pulse Width Modulation (PWM) controller and a SenseFET. This series is specifically designed for quasi-resonant off-line Switch Mode Power Supplies (SMPS) with minimal external components. The PWM controller includes an integrated fixed frequency oscillator, under-voltage lockout, leadingedge blanking (LEB), optimized gate driver, internal softstart, temperature-compensated precise current sources for...