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5L0380R Datasheet

  • 5L0380R

  • Fairchild Power Switch(FPS)

  • 946.26KB

  • 20頁

  • FAIRCHILD

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www.fairchildsemi.com
KA5x03xx-SERIES
KA5H0365R, KA5M0365R, KA5L0365R, KA5M0365RN,
KA5L0365RN, KA5H0380R, KA5M0380R, KA5L0380R
Fairchild Power Switch(FPS)
Features
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Precision Fixed Operating Frequency (100/67/50kHz)
Low Start-up Current(Typ. 100uA)
Pulse by Pulse Current Limiting
Over Current Protection
Over Voltage Protection (Min. 25V)
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) consists of a
high voltage power SenseFET and a current mode PWM IC.
Included PWM controller integrates the fixed frequency
oscillator, the under voltage lock-out, the leading edge
blanking, the optimized gate turn-on/turn-off driver, the
thermal shutdown protection, the over voltage protection,
and the temperature compensated precision current sources
for the loop compensation and the fault protection circuitry.
Compared to a discrete MOSFET and a PWM controller or
an RCCsolution, a Fairchild Power Switch(FPS) can reduce
the 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 the cost
effective design in either a flyback converter or a forward
converter
TO-220F-4L
8-DIP
Applications
鈥?SMPS for VCR, SVR, STB, DVD & DVCD
鈥?SMPS for Printer, Facsimile & Scanner
鈥?Adaptor for Camcorder
1
1. GND 2. Drain 3. V
CC
4. FB
1.6.7.8 Drain
2. GND
3. V
CC
4. FB 5. NC
Internal Block Diagram
#3 V
CC
32V
5V
Vref
Good
logic
OSC
9V
5碌A(chǔ)
1mA
鈭?/div>
2.5R
1R
+
7.5V
鈭?/div>
+
27V
鈭?/div>
Thermal S/D
OVER VOLTAGE S/D
+
S
R
L.E.B
0.1V
S
R
Q
Q
Internal
bias
#2 DRAIN
SFET
(*#3 V
CC
)
(*#1.6.7.8 DRAIN)
#4 FB
(*#4 FB)
#1 GND
Power on reset
(*#2 GND)
*Asterisk - KA5M0365RN, KA5L0365RN
Rev.1.0.5
漏2002 Fairchild Semiconductor Corporation

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    Fairchild Power Switch(FPS)
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    Fairchild Power Switch(FPS)
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