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Fairchild Semiconductor - Fairchild Power Switch(FPS)

Numéro de référence FS6M07652RTC
Description Fairchild Power Switch(FPS)
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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FS6M07652RTC fiche technique
FS6M07652RTC
Fairchild Power Switch(FPS)
www.fairchildsemi.com
Features
• Fixed Frequency
• Internal Burst Mode Controller for Stand-by Mode
• Pulse By Pulse Over Current Limiting
• Over Current Protection(Auto Restart Mode)
• Over Voltage Protection (Auto Restart Mode)
• Over Load Protection(Auto Restart Mode)
• Internal Thermal Shutdown Function(Latch Mode)
• Under Voltage Lockout
• Internal High Voltage Sense FET
• Soft Start
Application
• LCD Monitor SMPS
• Adaptor
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 a
high voltage power SenseFET and a current mode PWM IC.
Included PWM controller features integrated fixed 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 a fault protection circuitry. compared with
a discrete MOSFET and a controller or a RCC switching
converter solution, a Fairchild Power Switch(FPS) can
reduce 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 LCD monitor power supply.
TO-220F-5L
Internal Block Diagram
1
1. Drain 2. GND 3. VCC
4. Feedback 5. SoftStart
SoftStart 5
Vref
Vfb
Vth=1V
Vcc
Vth=11V/12V
Feedbock 4
Ifb
Vref Vcc
Idelay
Vth=7.5V
Vcc
Vth=33V
OLP
OVP
OSC
Vref
Burst mode
controller
Internal
Bias
Vref
UVLO
S
Q
R
PWM
VCC
Drain
31
Ron
Roff
2.5R
R
Vfb Offset
UVLO Reset
(Vcc=9V)
SQ
R
QS
R
OCL Filter
(130nsec)
Rsenese
Vth=2V
Power-on
Reset
(Vcc=6.5V)
TSD
(Tj=160 )
2 GND
©2003 Fairchild Semiconductor Corporation
Rev.1.0.4

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