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KA5x0165Rxx-SERIES
KA5H0165R/RN, KA5M0165R/RN, KA5L0165R/RN,
KA5H0165RVN
Fairchild Power Switch(FPS)
Features
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•
•
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•
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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 R
CC
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
V
CC
32V
5V
Vref
Good
logic
OSC
S
uA
Internal
bias
DRAIN
SFET
R
FB
5µA
−
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
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
