KA5M0765RQC-TU FAIRCHILD [Fairchild Semiconductor], KA5M0765RQC-TU Datasheet
KA5M0765RQC-TU
Manufacturer Part Number
KA5M0765RQC-TU
Description
Fairchild Power Switch(SPS)
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
1.KA5M0765RQC-TU.pdf
(12 pages)
Features
• Precision Fixed Operating Frequency (70kHz)
• Low Start-up Current (Typ. 100 A)
• 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
• Auto-Restart Mode
Internal Block Diagram
©2004 Fairchild Semiconductor Corporation
KA5M0765RQC
Fairchild Power Switch(FPS)
Feedback 4
Soft Start 5
27V
7.5V
(T
(V
(V
OVP-out
+ + + +
-
J
=150 ℃ )
CC
S
TSD
OCL
=1.4V)
OVP
=27V)
V
CC
+ + + +
-
5uA
OLP
OVP-out
V
REF
5V
1mA
2.5R
Vcc
15V/9V
R
3
OSC
-
+ + + +
UVLO
Power-on Reset
/Auto-restart
CLK
Vref
LEB
V
O F F S E T
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 R
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.
1. DRAIN 2. GND 3. V
Shutdown
S
R
R
Lat ch
TO-220-5L
S
CC
Good Logic
INTERNAL
Q
Q
solution, a Fairchild Power Switch(FPS) can reduce
BIAS
1
※ LEB : Leading Edge Blanking
※ OCL : Over Curr ent Limit
VOLTAG E
CIRCUIT
LIMIT
V
CC
S
Rsense
14V
4. FB 5. S/S
Sense
FET
www.fairchildsemi.com
Drain
1
2
GND
Rev.1.0.5
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