CQO765RT Datasheet, CQ0765RT PDF – Power Switch

Part Number: CQO765RT

CQO765RT  =>  Correct Part number CQ0765RT

Package: TO-220 Type

Function: Green Mode Fairchild Power Switch

Manufacturer: Fairchild


CQO765RT Image


1. Optimized for Quasi-Resonant Converter (QRC)
2. Advanced Burst-Mode Operation for under 1 W Standby Power Consumption
3. Pulse-by-Pulse Current Limit
4. Under-Voltage Lockout (UVLO) with Hysteresis
5. Extended Quasi-Resonant Switching


CQO765RT Pinouts


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.

In general, Quasi-Resonant Converter (QRC) shows lower EMI and higher power conversion efficiency compared to the conventional hard switched converter with a fixed switching frequency. Therefore, it is well suited for applications that are sensitive to the noise, such as color TV and audio. The FSCQ0765RT is an integrated Pulse Width Modulation (PWM) controller and Sense FET specifically designed for Quasi-resonant off-line Switch Mode Power Supplies (SMPS) with minimal external components. The PWM controller includes integrated fixed frequency oscillator, under voltage lockout, 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 discrete MOSFET and PWM controller solution, it can reduce total cost, component count, size and weight simultaneously increasing efficiency, productivity, and system reliability. This device is a basic platform well suited for cost effective designs of Quasi resonant switching flyback converters.

Block Diagram
CQO765RT Datasheet


1. CTV
2. Audio Amplifier

Other data sheets are available within the file: CQ0565RT, CQ05659T, CQ1265RT, CQ1565RT,

CQO565RT, CQO5659T.

CQO765RT Datasheet


CQO765RT pdf