This is a member of the KA5Q series of power switch ICs manufactured by Fairchild Semiconductor.
The device integrates a 650V power MOSFET, PWM controller, start-up circuit, and protections like over-voltage, over-current, and over-temperature.
Part Number: 5Q765RT, 5Q0765RT
Function: Fairchild Power Switch(FPS)
Package: TO-220F-5L Type
Manufacturer: Fairchild Semiconductor
The Fairchild Power Switch(FPS) product family is specially designed for an off-line SMPS with minimal external components. The Fairchild Power Switch(FPS) consist of high voltage power SenseFET and current mode PWM controller IC.
PWM controller features integrated fixed oscillator, under voltage lock out, leading edge blanking, optimized gate turn-on/ turn-off driver, thermal shut down protection, over voltage
protection, temperature compensated precision current sources for loop compensation and fault protection circuit.
Image and Pinouts:
1. Quasi Resonant Converter Controller
2. Internal Burst Mode Controller for Stand-by Mode
3. Pulse by Pulse Current Limiting
4. Over Current Latch Protection
5. Over Voltage Protection (Vcc: Min. 27V)
6. Internal Thermal Shutdown Function
7. Under Voltage Lockout
8. Internal High Voltage Sense FET
9. Auto-Restart Mode
5Q765RT Datasheet PDF
Other data sheets are available within the file: 500765RT, 5Q12656RT, 5Q1565RF, 5Q765RT, KA5Q12656RT