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KA1M0765RC-YDTU Datasheet

  • KA1M0765RC-YDTU

  • Fairchild Power Switch(FPS)

  • 12頁

  • FAIRCHILD

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www.fairchildsemi.com
KA1M0765R/KA1M0765RC
Fairchild Power Switch(FPS)
Features
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Precision fixed operating frequency (67kHz)
Pulse by pulse current limiting
Over load protection
Over voltage protecton (Min. 23V)
Internal thermal shutdown function
Under voltage lockout
Internal high voltage sense FET
Auto restart
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
controller IC. PWM controller features integrated fixed
frequency oscillator, under voltage lock out, leading edge
blanking, optimized gate turn-on/turn-off driver, thermal
shutdown protection, over voltage protection, temperature
compensated precision current sources for loop
compensation and fault protection circuit. compared to
discrete MOSFET and PWM controller or R
CC
solution, a
Fairchild Power Switch(FPS) can reduce total component
count, design size, weight and at the same time increase
efficiency, productivity, and system reliability. It has a basic
platform well suited for cost effective design in either a
flyback converter or a forward converter.
TO-3P-5L
TO-220-5L
1
1
1. DRAIN 2. GND 3. Vcc 4. FB 5. S/S
Internal Block Diagram
#3 V
CC
32V
5V
Vref
Good
logic
#5 Soft Start
5V
OSC
S
R
#4 FB
5碌A(chǔ)
1mA 2.5R
1R
9V
+
7.5V
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+
25V
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Thermal S/D
OVER VOLTAGE S/D
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+
L.E.B
0.1V
S
R
Q
#2 GND
Q
Internal
bias
#1 DRAIN
SFET
Power on reset
Rev.1.0.2
漏2001 Fairchild Semiconductor Corporation

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