Part Number: Q0465R, QO465R
Function: 650V, Green-Mode Fairchild Power Switch
Package: TO-220-6 Pin Type
Manufacturer: Fairchild Semiconductor
The Q0465R is Green-Mode Fairchild Power Switch (FPS) for Quasi-Resonant Operation – Low EMI and High Efficiency.
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 softstart, 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.
1. Optimized for Quasi-Resonant Converters (QRC)
2. Low EMI through Variable Frequency Control and AVS (Alternating Valley Switching)
3. High-Efficiency through Minimum Voltage Switching
4. Narrow Frequency Variation Range over Wide Load and Input Voltage Variation
5. Advanced Burst-Mode Operation for Low Standby Power Consumption
Other data sheets are available within the file:
FSQ0465RB, FSQ0465RBLDTU, FSQ0465RBWDTU, FSQ0465RS,
FSQ0465RSLDTU, FSQ0465RS, FSQ0465RB