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Q0370R View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
View to exact match
Q0370R
Fairchild
Fairchild Semiconductor Fairchild
Q0370R Datasheet PDF : 17 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
FSQ0170RNA, FSQ0270RNA, FSQ0370RNA
Green Mode Fairchild Power Switch (FPS™)
April 2007
Features
„ Internal Avalanche Rugged 700V SenseFET
„ Consumes only 0.8W at 230 VAC & 0.5W Load with
Burst-Mode Operation
„ Precision Fixed Operating Frequency, 100kHz
„ Internal Start-up Circuit and Built-in Soft-Start
„ Pulse-by-Pulse Current Limiting and Auto-Restart
Mode
„ Over-Voltage Protection (OVP), Overload Protection
(OLP), Internal Thermal Shutdown Function (TSD)
„ Under-Voltage Lockout (UVLO)
„ Low Operating Current (3mA)
„ Adjustable Peak Current Limit
Applications
„ Auxiliary Power Supply for PC and Server
„ SMPS for VCR, SVR, STB, DVD & DVCD Player,
Printer, Facsimile & Scanner
„ Adapter for Camcorder
Description
The FSQ0170RNA, FSQ0270RNA, FSQ0370RNA
consists of an integrated current mode Pulse Width
Modulator (PWM) and an avalanche-rugged 700V Sense
FET. It is specifically designed for high-performance off-
line Switch Mode Power Supplies (SMPS) with minimal
external components. The integrated PWM controller
features include: a fixed-frequency generating 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.
Compared to a discrete MOSFET and controller or RCC
switching converter solution, the FSQ0170RNA,
FSQ0270RNA, FSQ0370RNA reduces total component
count, design size, and weight while increasing
efficiency, productivity, and system reliability. These
devices provide a basic platform that is well suited for the
design of cost-effective flyback converters, as in PC
auxiliary power supplies.
Related Application Notes
„ AN-4134: Design Guidelines for Off-line Forward
Converters Using Fairchild Power Switch (FPS™)
„ AN-4137: Design Guidelines for Off-line Flyback
Converters Using Fairchild Power Switch (FPS™)
„ AN-4141: Troubleshooting and Design Tips for
Fairchild Power Switch (FPS™) Flyback Applications
„ AN-4147: Design Guidelines for RCD Snubber of
Flyback
„ AN-4148: Audible Noise Reduction Techniques for
FPS™ Applications
8-DIP
Ordering Information
Product Number
FSQ0170RNA
FSQ0270RNA
FSQ0370RNA
Package
8DIP
8DIP
8DIP
Marking Code
Q0170R
Q0270R
Q0370R
BVDSS
700V
700V
700V
fOSC
100kHz
100kHz
100kHz
RDS(ON) (MAX.)
11Ω
7.2Ω
4.75Ω
FPSTM is a trademark of Fairchild Semiconductor Corporation.
© 2006 Fairchild Semiconductor Corporation
FSQ0170RNA, FSQ0270RNA, FSQ0370RNA Rev. 1.0.2
www.fairchildsemi.com
 

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