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KA5M0965Q-YDTU датащи(PDF) 1 Page - Fairchild Semiconductor

номер детали KA5M0965Q-YDTU
подробное описание детали  Fairchild Power Switch(SPS)
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производитель  FAIRCHILD [Fairchild Semiconductor]
домашняя страница  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA5M0965Q-YDTU датащи(HTML) 1 Page - Fairchild Semiconductor

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©2001 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev.1.0.1
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 protecton (Min. 25V)
• Internal thermal shutdown function
• Under voltage lockout
• Internal high voltage sense FET
• Latch mode
Description
The SPS product family is specially designed for an off-line
SMPS with minimal external components. The SPS consist
of high voltage power SenseFET and current mode PWM
IC. Included PWM controller features integrated fixed fre-
quency oscillator, under voltage lock-out, leading edge
blanking, optimized gate turn-on/turn-off driver, thermal
shutdown protection, over voltage protection, and tempera-
ture compensated precision current sources for loopcompen-
sation and fault protection circuitry. Compared to discrete
MOSFET and PWM controller or RCC solution, a SPS can
reduce total component count, design size, weight and at the
same time increase efficiency, productivity, and system reli-
ability. It has a basic platform well suited for cost-effective
design in either a flyback converter or a forward converter.
TO-3P-5L
1. DRAIN 2. GND 3. VCC 4. FB 5. S/S
Internal Block Diagram
VOF F S E T
Sense
FET
15V/9V
UVLO
Vref
2.5R
5uA
R
1mA
Good Logic
INTERNAL
BIAS
LEB
+
++
+
-
S
R
Q
OSC
CLK
7.5V
Shutdown
Lat ch
Power-on Reset
/Auto-restart
Rsense
※ LEB : Leading Edge Blanking
※ OCL : Over Current Limit
Vcc
GND
Drain
+
++
+
-
14V
27V
+
++
+
-
OVP-out
OVP
S
R
Q
3
2
1
VCC
VREF
VOLTAGE
LIMIT
CIRCUIT
OLP
OCL
(VS=1.4V)
TSD
(TJ=150℃)
OVP-out
(VCC=27V)
VS
5V
Soft Start 5
Feedback 4
KA5M0965Q
Fairchild Power Switch(SPS)


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