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FSCQ0565RT Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part No. FSCQ0565RT
Description  Green Mode Fairchild Power Switch (FPS TM)
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FSCQ0565RT Datasheet(HTML) 1 Page - Fairchild Semiconductor

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©2006 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
February 2006
FSCQ-Series Rev. 1.1.2
FSCQ-Series
FSCQ0565RT/FSCQ0765RT/FSCQ0965RT/FSCQ1265RT/
FSCQ1465RT/FSCQ1565RT/FSCQ1565RP
Green Mode Fairchild Power Switch (FPS™)
Features
Optimized for Quasi-Resonant Converter (QRC)
Advanced Burst-Mode Operation for under 1W
Standby Power Consumption
Pulse-by-Pulse Current Limit
Over Load Protection (OLP) – Auto Restart
Over Voltage Protection (OVP) – Auto Restart
Abnormal Over Current Protection (AOCP) – Latch
Internal Thermal Shutdown (TSD) – Latch
Under Voltage Lock Out (UVLO) with Hysteresis
Low Startup Current (typical: 25µA)
Internal High Voltage SenseFET
Built-in Soft Start (20ms)
Extended Quasi-Resonant Switching
Applications
CTV
Audio Amplifier
Related Application Notes
AN4146: Design Guidelines for Quasi-Resonant
Converters Using FSCQ-Series Fairchild Power
Switch.
AN4140: Transformer Design Consideration for
Off-Line Flyback Converters Using Fairchild Power
Switch.
Description
A Quasi-Resonant Converter (QRC) typically shows
lower EMI and higher power conversion efficiency com-
pared to conventional hard-switched converter with a
fixed switching frequency. Therefore, a QRC is well
suited for noise-sensitive applications, such as color TV
and audio. Each product in the FSCQ-Series contains an
integrated Pulse Width Modulation (PWM) controller and
a SenseFET, and is specifically designed for quasi-
resonant off-line Switch Mode Power Supplies (SMPS)
with minimal external components. The PWM controller
includes an integrated fixed frequency oscillator, under volt-
age lockout, leading edge blanking (LEB), optimized gate
driver, internal soft start, temperature-compensated pre-
cise current sources for a loop compensation, and self
protection circuitry. Compared with a discrete MOSFET
and PWM controller solution, the FSCQ-Series can
reduce total cost, component count, size, and weight, while
simultaneously increasing efficiency, productivity, and sys-
tem reliability. These devices provide a basic platform that
is well suited for cost-effective designs of quasi-resonant
switching flyback converters.
Ordering Information
YDTU: Forming Type
VDTU: Forming Type
Product Number
Package
Marking Code
BVdss
Rds(ON) Max.
FSCQ0565RTYDTU
TO-220F-5L (Forming)
CQ0565RT
650V
2.2
FSCQ0765RTYDTU
TO-220F-5L (Forming)
CQ0765RT
650V
1.6
FSCQ0965RTYDTU
TO-220F-5L (Forming)
CQ0965RT
650V
1.2
FSCQ1265RTYDTU
TO-220F-5L (Forming)
CQ1265RT
650V
0.9
FSCQ1465RTYDTU
TO-220F-5L( Forming)
CQ1465RT
650V
0.8
FSCQ1565RTYDTU
TO-220F-5L (Forming)
CQ1565RT
650V
0.7
FSCQ1565RPVDTU
TO-3PF-7L (Forming)
CQ1565RP
650V
0.7


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