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FS6M12653RTC

Fairchild Power Switch(FPS)
Features
Fixed Frequency Internal Burst Mode Controller for Stand-by Mode Pulse By Pulse Over Current Limiting Over Current Protection(Auto Restart Mode) Over Voltage Protection (Auto Restart Mode) Over Load Protection(Auto Restart Mode) Internal Thermal Shutdown Function(Latch Mode) Under Voltage Lockout Internal High Voltage Sense FET Soft Start

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, a Fairchild Power Switch(FPS) can reduce total component count, design size, and weight and at the same time increase efficiency, productivity, and system reliability. It has a basic platform well suited for cost effective LCD monitor power supply.
TO-220F-5L

1

1. Drain 2. GND 3. VCC 4. Feedback 5. SoftStart

Internal Block Diagram
VCC Drain

3
Vref
OSC Vref Vfb Vth 1V Burst mode controller

1

SoftStart

5

Internal Bias

Vref UVLO

S Q
Ron

Vcc Vth 11V/12V

R
Roff PWM

Feedbock

4
Ifb

2.5R R Vcc Vfb Offset Rsenese Vref

Idelay OLP Vth 7.5V Vcc Vth 33V OVP

OCL

Filter (130nsec)
Vth 2V

2 GND

S
UVLO Reset (Vcc 9V)

Q

Q

S R
Power-on Reset (Vcc 6.5V)

TSD
(Tj 160 )

R

Rev.1.0.3
2003 Fairchild Semiconductor Corporation

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FS6M12653RTC DATASHEET