KA5M0965QTU データシートの表示（PDF） - Fairchild Semiconductor
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KA5M0965QTU Datasheet PDF : 12 Pages
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KA5M0965Q
Fairchild Power Switch(FPS)
www.fairchildsemi.com
Features
• Precision Fixed Operating Frequency (70kHz)
• Low Start-up Current(Typ. 100uA)
• Pulse by Pulse Current Limiting
• Over Load Protection
• Over Current Protection
• Over Voltage Protection (Min. 25V)
• Internal Thermal Shutdown Function
• Under Voltage Lockout
• Internal High Voltage Sense FET
• Latch 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
frequency oscillator, under voltage lock-out, leading edge
blanking, optimized gate turn-on/turn-off driver, thermal
shutdown protection, over voltage protection, and
temperature compensated precision current sources for
loop compensation and fault protection circuitry. compared
to discrete MOSFET and PWM controller or RCC 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
1
1. DRAIN 2. GND 3. VCC 4. FB 5. S/S
Internal Block Diagram
Vcc
Drain
3
1
OVP
+
OVP - ou t
27V -
VCC VREF 15V/9V
5uA 1mA
Feedback 4
Soft Start 5
2.5R
+
5V R
7.5V
- OLP
TSD
( TJ = 1 50℃)
OVP - ou t
( VC C = 2 7V)
OCL
( VS=1 .4 V)
UVL O
Vref
CLK
OSC
INTERNAL
BIA S
Good Logic
SQ
-
LEB R
+
VO F FSE T
VOL TAG E
L IMIT
Sen se
CIRCUIT FET
14V
VS
Power-on Reset
/Auto-restart
S
Q
R
Sh utd o wn
L at ch
Rsense
2 GND
※ LEB : Leading Edge Blanking
※ OCL : Over Current Limit
©2003 Fairchild Semiconductor Corporation
Rev.1.0.3
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