FS6S1265RE Datasheet, PDF (1/10 Pages) Fairchild Semiconductor – Fairchild Power Switch(FPS)

FS6S1265RE
Fairchild Power Switch(FPS)
www.fairchildsemi.com
Features
• 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
• 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
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 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
discrete MOSFET and controller or 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 cost effective monitor
power supply.
TO-3P-5L
1
1. Drain 2. Gnd 3. VCC 4. FeedBack 5. Sync.
Internal Block Diagram
Vref _Vpp=5.8/7.2V
SoftStart
& Sync
5
Vfb
Vth=1V
Vcc
Vth=11V/12V
OSC
Vref
Burst mode
controller
Feedback 4
Ifb
Vref
Vcc
2.5R
R
Idelay
Vth=7.5V
Vcc
Vth=30V
OLP
OVP
UVLO Reset
(Vcc=9V)
SQ
R
Internal
Bias
Vref
UVLO
S
Q
R
PWM
Vcc
Drain
3
1
Ron
Roff
Vfb Offset
OCL Filter
(130nsec)
TS
(Tj=^D160℃)
Rsenese
Vth=1V
2 ^GND
©2003 Fairchild Semiconductor Corporation
Rev.1.0.1