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KA5x0165Rxx-SERIES

KA5H0165R/RN, KA5M0165R/RN, KA5L0165R/RN, KA5H0165RVN Fairchild Power Switch(FPS)
Features
Precision Fixed Operating Frequency (100/67/50kHz ) Low Start-up Current (Typ. 100uA) Pulse by Pulse Current Limiting Over Load Protection Over Voltage Protection (Min. 25V) - except KA5H0165RVN Internal Thermal Shutdown Function Under Voltage Lockout Internal High Voltage Sense FET Auto-Restart Mode

Description
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 IC. Included 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, and temperature compensated precision current sources for loop compensation and fault protection circuitry compared to discrete MOSFET and controller or RCC switching converter solution, The Fairchild Power Switch(FPS) can reduce total component count, design size, weight and at the same time increase efficiency, productivity, and system reliability. It is well suited for cost effective design of flyback converters.
TO-220F-4L 8-DIP

1 1 1. GND 2. Drain 3. Vcc 4. FB 1.6.7.8. Drain 2. GND 3. Vcc 4. FB 5. NC

Internal Block Diagram
VCC 32V 5V Vref Good logic OSC S
uA

Internal bias

DRAIN SFET

R FB 5 A - 1mA 2.5R 1R 9V 7.5V - 27V - Thermal S/D OVER VOLTAGE S/D L.E.B 0.1V

Q

S R Q

GND

Power on reset

Rev.1.0.5
2003 Fairchild Semiconductor Corporation

KA5L0165RN Datasheet Fairchild Download PDF

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KA5L0165RN DATASHEET