SMPS Power Switch(QRC), 0.5A, 700V, 7DIP (Green)

A Valley Switching Converter (VSC) generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ510 H) is an integrated Valley Switching Pulse Width Modulation (VS-PWM) controller and SenseFET specifically designed for offline Switch Mode Power Supplies (SMPS) for valley switching with minimal external components. The VSPWM controller includes an integrated Oscillator Under- Voltage Lockout (UVLO), Leading Edge Blanking (LEB), optimized Gate driver, internal soft start, temperaturecompensated precise current sources for loop compensation, and self-protection circuitry. Compared with Discrete MOSFET and PWM Controller solutions, the FSQ510 H) CAN reduce total cost and component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a platform well suited for cost-effective designs of a valley switching flyback converters.
By Fairchild Semiconductor