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FSQ565RQ Dataheets PDF



Part Number FSQ565RQ
Manufacturers Fairchild Semiconductor
Logo Fairchild Semiconductor
Description Green-Mode Fairchild Power Switch
Datasheet FSQ565RQ DatasheetFSQ565RQ Datasheet (PDF)

FSQ0565RS/RQ — Green-Mode Farichild Power Switch (FPS™) for Quasi-Resonant Operation December 2009 FSQ0565RS/RQ Green-Mode Fairchild Power Switch (FPS™) for Quasi-Resonant Operation - Low EMI and High Efficiency Features ! Optimized for Quasi-Resonant Converters (QRC) ! Low EMI through Variable Frequency Control and AVS Description A Quasi-Resonant Converter (QRC) generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switchin.

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FSQ0565RS/RQ — Green-Mode Farichild Power Switch (FPS™) for Quasi-Resonant Operation December 2009 FSQ0565RS/RQ Green-Mode Fairchild Power Switch (FPS™) for Quasi-Resonant Operation - Low EMI and High Efficiency Features ! Optimized for Quasi-Resonant Converters (QRC) ! Low EMI through Variable Frequency Control and AVS Description A Quasi-Resonant Converter (QRC) generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ-series is an integrated Pulse-Width Modulation (PWM) controller and SenseFET specifically designed for quasi-resonant operation and Alternating Valley Switching (AVS). The PWM controller includes an integrated fixed-frequency oscillator, Under-Voltage Lockout (UVLO), LeadingEdge Blanking (LEB), optimized gate driver, internal softstart, temperature-compensated precise current sources for a loop compensation, and self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSQ-series can reduce total cost, component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform for cost-effective designs of quasi-resonant switching flyback converters. (Alternating Valley Switching) ! High-Efficiency through Minimum Voltage Switching ! Narrow Frequency Variation Range over Wide Load and Input Voltage Variation Power Consumption ! Advanced Burst-Mode Operation for Low Standby ! Simple Scheme for Sync Voltage Detection ! Pulse-by-Pulse Current Limit ! Various Protection Functions: Overload Protection ! ! ! ! (OLP), Over-Voltage Protection (OVP), Internal Thermal Shutdown (TSD) with Hysteresis, Output Short Protection (OSP) Under-Voltage Lockout (UVLO) with Hysteresis Internal Startup Circuit Internal High-Voltage Sense FET (650V) Built-in Soft-Start (17.5ms) Applications ! Power Supply for LCD TV and Monitor, VCR, SVR, STB, and DVD & DVD Recorder ! Adapter Related Resources Visit: http://www.fairchildsemi.com/apnotes/ for: Converters Using Fairchild Power Switch (FPS™) ! AN-4137: Design Guidelines for Offline Flyback Converters Using Fairchild Power Switch (FPS™) ! AN-4140: Transformer Design Consideration for Offline Flyback Converters Using Fairchild Power Switch (FPS™) ! AN-4141: Troubleshooting and Design Tips for Fairchild Power Switch (FPS™) Flyback Applications ! AN-4145: Electromagnetic Compatibility for Power Converters ! AN-4147: Design Guidelines for RCD Snubber of Flyback Converters www.DataSheet4U.com ! AN-4148: Audible Noise Reduction Techniques for Fairchild Power Switch (FPS™) Applications ! AN-4150: Design Guidelines for Flyback Converters Using FSQ-Series Fairchild Power Switch (FPS™) ! AN-4134: Design Guidelines for Offline Forward © 2008 Fairchild Semiconductor Corporation FSQ0565RS/RQ Rev. 1.0.3 www.fairchildsemi.com FSQ0565RS/RQ — Green-Mode Farichild Power Switch (FPS™) for Quasi-Resonant Operation Ordering Information Maximum Output Power(1) Product Number FSQ0565RSWDTU FSQ0565RQWDTU PKG.(5) Operating Temp. Current RDS(ON) Limit Max. 2.25A 3.0A 230VAC±15%(2) Adapter(3) 70W 85-265VAC Adapter(3) 41W Open Frame(4) 80W Open Frame(4) 60W Replaces Devices TO-220F6L -25 to +85°C 2.2Ω FSCM0565R FSDM0565RE TO-220F6L -25 to +85°C FSQ0565RQLDTU (L-Forming) FSQ0565RSLDTU 2.25A 3.0A 2.2Ω 70W 80W 41W 60W FSCM0565R FSDM0565RE For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. Notes: 1. The junction temperature can limit the maximum output power. 2. 230VAC or 100/115VAC with doubler. 3. Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient temperature. 4. Maximum practical continuous power in an open-frame design at 50°C ambient. 5. Eco Status, RoHS Application Diagram VO AC IN VSTR Drain PWM Sync VFB VCC GND FSQ0565RS Rev. 00 Figure 1. Typical Flyback Application www.DataSheet4U.com © 2008 Fairchild Semiconductor Corporation FSQ0565RS/RQ Rev. 1.0.3 2 www.fairchildsemi.com FSQ0565RS/RQ — Green-Mode Farichild Power Switch (FPS™) for Quasi-Resonant Operation Block Diagrams Sync 5 Vstr 6 VCC 3 Drain 1 AVS 0.35/0.55 VBurst IFB 3R R tON < tOSP after SS SoftStart PWM OSC Vref VCC good 8V/12V VCC Vref Idelay FB 4 S Q LEB 250ns R Q Gate driver VOSP LPF AOCP VSD VCC VOVP LPF TSD S Q 2 VOCP (1.1V) GND R Q VCC good FSQ0565RS Rev.00 Figure 2. Internal Block Diagram of FSQ0565RS Sync 5 Vstr 6 VCC 3 Drain 1 AVS 0.35/0.55 VBurst IFB 3R R tON < tOSP after SS SoftStart PWM OSC Vref VCC good 8V/12V VCC Vref Idelay FB 4 S Q LEB 250ns R Q Gate driver VOSP LPF AOCP VSD TSD LPF S Q 2 VOCP (1.1V) GND www.DataSheet4U.com R Q VOVP VCC good FSQ0565RQ Rev.00 Figure 3. Internal Block Diagram of FSQ0565RQ © 2008 Fairchild Semiconductor Corporation FSQ0565RS/RQ Rev. 1.0.3 3 www.fairchildsemi.com FSQ0565RS/RQ — Green-Mode Farichil.


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