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FS6S0965RCB
Fairchild Power Switch(FPS)
Features
Description
• Wide Operating Frequency Range up to 150kHz
• Lowest Cost SMPS Solution
• Lowest External Components
• Low Start up Current (Max:170uA)
• Low Operating Current (Max:15mA)
• Internal High Voltage SenseFET
The Fairchild Power Switch(FPS) product family are
specially designed for an off line SMPS with minimal
external components. The Fairchild Power Switch(FPS)
consists of a high voltage power SenseFET and a current
mode PWM IC. Included PWM controller features the
integrated fixed oscillator, the under voltage lockout, the
optimized gate turn on/turn off driver, the thermal shut
down protection, the over voltage protection, and the
temperature compensated precision current sources for the
loop compensation and the fault protection circuitry.
Compared to a discrete MOSFET and a controller or a RCC
switching converter solution, a Fairchild Power Switch(FPS)
can reduce the total component count, design size, and
weight and at the same time increase efficiency,
• Built-in Auto Restart Circuit
• Over Voltage Protection (Auto Restart Mode)
• Over Load Protection (Auto Restart Mode)
• Over Current Protection (Auto Restart Mode)
• Internal Thermal Protection(Auto Restart Mode)
• Pulse By Pulse Over Current Limiting
• Internal Burst Mode Controller for Stand-by Mode
• Under Voltage Lockout With Hysteresis
• External Sync. Terminal
productivity, and system reliability. It has a basic platform
well suited for the cost effective monitor power supply.
TO-220-5L
Application
• Monitor SMPS
1
1. Drain 2. Gnd 3. V
4. Feedback 5. Sync
CC
Internal Block Diagram
Drain
Vcc
3
1
Vref
Vpp=5.8/7.2V
Internal
Vref
OSC
Bias
SoftStart
& Sync
5
Vref
UVLO
Burst mode
controller
Vfb
Vth=1V
S
Ron
Q
R
Vcc
Vth=11V/12V
Roff
PWM
4
Feedback
2.5R
R
Ifb
Vfb Offset
Vref
Vcc
Rsenese
Idelay
OCL
Filter
(130nsec)
OLP
GND
2
Vth=1V
Vth=7.5V
S
R
Q
TSD
(Tj=160
Vcc
)
℃
UVLO Reset
(Vcc=9V)
OVP
Vth=30V
Rev.1.0.1
©2003 Fairchild Semiconductor Corporation