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FSQ510 Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FSQ510 Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 15 page August 2006 © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSCQ510, FSCQ510H Rev. 0.0.3 PRELIMINARY DATASHEET FSQ510, FSQ510H — Green Mode Fairchild Power Switch (FPS TM) for Quasi-Resonant Converter – Low EMI and High Efficiency Features Uses a DMOS Integrated Power Switch Optimized for Quasi-Resonant Converter (QRC) Low EMI through Variable Frequency Control and Inherent Frequency Modulation High Efficiency through Minimum Voltage Switching Extended Quasi-Resonant Switching for Wide Load Ranges Small Frequency Variation for Wide Load Ranges Advanced Burst-Mode Operation for Low Standby Power Consumption Pulse-by-Pulse Current Limit Various Protection Functions: Overload Protection (OLP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD) with Hysteresis Under-Voltage Lockout (UVLO) with Hysteresis Internal Start-up Circuit Internal High-Voltage SenseFET (700V) Built-in Soft Start (5ms) Applications Cell Phone Chargers Auxiliary Power Supplies for PC and White Goods 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 FSQ510(H) is an integrated Pulse-Width Modulation (PWM) controller and SenseFET 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-Voltage Lockout (UVLO), 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 solution, the FSQ510(H) can reduce total cost, component count, size and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform that is well suited for cost-effective designs of quasi-resonant switching flyback converters. Ordering Information Maximum Output Power (1) 230VAC ± 15% (2) 85-265VAC Part Number Package Pb- Free Operating Temperature Range Current Limit RDS(ON) (MAX) Adapter (3) Open Frame (4) Adapter (3) Open Frame (4) Replaces Devices FSQ510 7-DIP Yes -25℃ to +85℃ 320mA 32 Ω 5W 7W 4W 5W FSD210B FSQ510H 8-DIPH Yes -25℃ to +85℃ 320mA 32 Ω 5W 7W 4W 5W FSD210HD 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. 4. Maximum practical continuous power in an open-frame design at 50 °C ambient temperature. |
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