Fairchild/ON Semiconductor FSQ0565RSLDTU

650V Integrated Power Switch with Quasi-Resonant Operation for 60Watt offline flyback converters
Power Switch 2A 6-Pin(6 Tab) TO-220F Rail
AC/DC Converters SMPS Power switch (QRC) 5A 650V
IC REG FLYBACK ADJ 2.2A 8HTSOP-J
SWITCHING CONTROLLER Isolated PULSE WIDTH MODULATION RoHS Compliant Converter Offline 2.2Ohm -25C~85C TA 2A 48kHz~67kHz
IC PWM/SENSEFET QRC TO-220F-6L
IC OFFLINE SW FLBACK TO220F-6L
BIPOLAR JUNCTION TRANSISTOR ARRAYS - BJT;
SWITCHING REGULATOR/CONTROLLER
A Quasi-Resonant Converter (QRC) generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ-series is an integrated Pulse-Width Modulation (PWM) controller and SenseFET specifically designed for quasi-resonant operation and Alternating Valley Switching (AVS). The PWM controller includes an integrated fixed-frequency oscillator, Under-Voltage Lockout (UVLO), Leading- Edge Blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for a loop compensation, and self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSQ-series can reduce total cost, component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform for cost-effective designs of quasi-resonant switching flyback converters.