www.fairchildsemi.com
FS6S0965RC
Fairchild Power Switch(SPS)
Features
Description
• Wide operating frequency range up to 150Khz
• Internal Burst mode Controller for Stand-by mode
• Pulse by pulse over current limiting
• Over current protection(Latch mode)
• Over voltage protection (Auto restart mode)
• Over load protection(Auto restart mode)
• Internal thermal shutdown function(Latch mode)
• Under voltage lockout
The Fairchild Power Switch(SPS) product family is specially
designed for an off line SMPS with minimal external
components. The Fairchild Power Switch(SPS) consist of
high voltage power SenseFET and current mode PWM IC.
Included PWM controller features integrated fixed oscillator,
under voltage lock out, 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
• Internal high voltage sense FET
discrete MOSFET and controller or R switching
CC
• Eternal sync terminal/Soft start
converter solution, a SPS 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 cost effective monitor power supply.
TO-220-5L
1
Internal Block Diagram
3
1
Vref
Vpp=5.8/7.2V
Internal
Bias
OSC
Vref
5
Vref
UVLO
Burst mode
controller
Vfb
Vth=1V
S
R
Ron
Q
Vcc
Vth=11V/12V
Roff
PWM
4
2.5R
R
Ifb
Vfb Offset
Vref
Vcc
Rsenese
Idelay
OCL
Filter
(130nsec)
OLP
2
Vth=1V
Vth=7.5V
S
TS
S
R
Q
Q
D
Vcc
)
(Tj=160℃
Power- on
Reset
(Vcc=6.5V)
UVLO Reset
(Vcc=9V)
R
OVP
Vth=30V
Rev.1.0.0
©2001 Fairchild Semiconductor Corporation