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FSQ100_11 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – Green Mode Fairchild Power Switch (FPS™) | |||
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March 2011
FSQ100
Green Mode Fairchild Power Switch (FPSâ¢)
Features
ï§ Internal Avalanche-Rugged SenseFET
ï§ Precision Fixed Operating Frequency: 67KHz
ï§ Burst-Mode Operation
ï§ Internal Startup Circuit
ï§ Pulse-by-Pulse Current Limiting
ï§ Over-Voltage Protection (OVP)
ï§ Overload Protection (OLP)
ï§ Internal Thermal Shutdown Function (TSD)
ï§ Auto-Restart Mode
ï§ Under-Voltage Lockout (UVLO) with Hysteresis
ï§ Built-in Soft-Start
ï§ Secondary-Side Regulation
Applications
ï§ Charger & Adapter for Mobile Phone, PDA, MP3
ï§ Auxiliary Power for White Goods, PC, C-TV, Monitor
Related Application Notes
ï§ AN-4137 â Design Guidelines for Off-line Flyback
Converters using FPSâ¢
ï§ AN-4141 â Troubleshooting and Design Tips for
Fairchild Power Switch (FPSâ¢) Flyback Applications
ï§ AN-4147 â Design Guidelines for RCD Snubber of
Flyback
ï§ AN-4134 â Design Guidelines for Off-line Forward
Converters using FPSâ¢
ï§ AN-4138 â Design Considerations for Battery
Charger Using Green Mode Fairchild Power Switch
(FPSâ¢)
Description
The FSQ100 consists of an integrated Pulse Width
Modulator (PWM) and SenseFET, specifically designed
for high-performance, off-line, Switch-Mode Power
Supplies (SMPS) with minimal external components.
This device is an integrated high-voltage power
switching regulator that combines a VDMOS SenseFET
with a voltage mode PWM control block. The integrated
PWM controller features include a fixed oscillator,
Under-Voltage Lockout (UVLO) protection, Leading
Edge Blanking (LEB), an optimized gate turn-on/turn-off
driver, Thermal Shutdown (TSD) protection, and
temperature-compensated precision-current sources for
loop compensation and fault protection circuitry.
When compared to a discrete MOSFET and controller or
RCC solution, the FSQ100 device reduces total
component count and design size and weight, while
increasing efficiency, productivity, and system reliability.
This device provides a basic platform well suited for
cost-effective flyback converters.
Ordering Information
Product Number
FSQ100
Package
8-DIP
Marking Code
Q100
FPS⢠is a trademark of Fairchild Semiconductor Corporation.
© 2007 Fairchild Semiconductor Corporation
FSQ100 Rev. 1.0.2
BVDSS
650V
fOSC
67KHz
RDS(ON)
16â¦
www.fairchildsemi.com
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