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Q0165R

Fairchild Semiconductor
Part Number Q0165R
Manufacturer Fairchild Semiconductor
Description FSQ0165R
Published May 5, 2014
Detailed Description FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 — Green Mode Fairchild Power Switch (FPS™) September 2007 FSQ0365, FSQ0265, ...
Datasheet PDF File Q0165R PDF File

Q0165R
Q0165R

Overview
FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 — Green Mode Fairchild Power Switch (FPS™) September 2007 FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter - Low EMI and High Efficiency Features „ Optimized for Valley Switching (VSC) „ Low EMI through Variable Frequency Control and 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 that is well suited for costeffective designs of valley switching fly-back converters.
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 „ Various 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 Start-up Circuit Internal High-Voltage SenseFET (650V) Built-in Soft-Start (15ms) Applications „ Power Supply for DVP Player and DVD Recorder, Set-Top Box „ Adapter „ Auxiliary Power Supply for PC, LCD TV, a...


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