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FSQ0365RN Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FSQ0365RN Datasheet(HTML) 1 Page - Fairchild Semiconductor |
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1 / 21 page  August 2011 © 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com FSQ0365, FSQ0265, FSQ0165, FSQ321 • Rev. 1.0.6 FSQ0365, FSQ0265, FSQ0165, FSQ321 Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter – Low EMI and High Efficiency Features Optimized for Valley Switching Converter (VSC) Low EMI through Variable Frequency Control and Inherent Frequency Modulation High Efficiency through Minimum Voltage Switching Narrow Frequency Variation Range Over Wide Load and Input Voltage Variation Advanced Burst-Mode Operation for Low Standby Power Consumption Pulse-by-Pulse Current Limit Protection Functions: Overload Protection (OLP), Over-Voltage Protection (OVP), Abnormal Over- Current Protection (AOCP), Internal Thermal Shutdown (TSD) Under-Voltage Lockout (UVLO) with Hysteresis Internal Startup Circuit Internal High-Voltage SenseFET: 650V Built-in Soft-Start: 15ms Applications Power Supplies for DVP Player, DVD Recorder, Set-Top Box Adapter Auxiliary Power Supply for PC, LCD TV, and PDP TV Description A Valley Switching Converter 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 valley switching operation with minimal external components. The PWM controller includes an integrated fixed-frequency oscillator, under-voltage lockout, Leading-Edge Blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for loop compensation, and self-protection circuitry. Compared with discrete MOSFET and PWM controller solutions, the FSQ-series reduces 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 valley switching fly-back converters. Related Application Notes AN-4137 - Design Guidelines for Offline 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 Converters AN-4150 - Design Guidelines for Flyback Converters Using FSQ-series Fairchild Power Switch (FPS™) AN-4134 - Design Guidelines for Off-line Forward Converters Using Fairchild Power Switch (FPS™) |
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Similar Description - FSQ0365RN |
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