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FSQ0165 Dataheets PDF



Part Number FSQ0165
Manufacturers Fairchild Semiconductor
Logo Fairchild Semiconductor
Description Green Mode Fairchild Power Switch
Datasheet FSQ0165 DatasheetFSQ0165 Datasheet (PDF)

FSQ0365/0265/0165/321 — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter August 2011 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 Volt.

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FSQ0365/0265/0165/321 — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter August 2011 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 OverCurrent 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™) © 2007 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321 • Rev. 1.0.6 www.fairchildsemi.com FSQ0365/0265/0165/321 — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter Ordering Information Part Number FSQ321 Package 8-DIP Maximum Output Table(1) Operating Current RDS(ON) 230VAC ±15%(2) 85-265VAC Temperature Limit (Max.) Adapter(3) Open Frame(4) Adapter(3) Open Frame(4) Replaces Devices FSQ321L FSQ321LX 8-LSOP 8-LSOP (Tape & Reel) -40 to +85°C 0.6A 19Ω 8W 12W 7W 10W FSDL321 FSDM311 FSQ0165RN 8-DIP FSQ0165RL FSQ0165RLX 8-LSOP 8-LSOP (Tape & Reel) -40 to +85°C 0.9A 10Ω 10W 15W 9W 13W FSDL0165RN FSQ0265RN FSQ0265RL 8-DIP 8-LSOP -40 to +85°C 1.2A 6Ω 14W 20W 11W 16W FSDM0265RN FSDM0265RNB FSQ0365RN 8-DIP -40 to +85°C 1.5A FSQ0365RL 8-LSOP 4.5Ω 17.5W 25W 13W 19W FSDM0365RN FSDM0365RNB Notes: 1. The junction temperature can limit the maximum output power. 2. 230VAC or 100/115VAC with voltage doubler. The maximum power with CCM operation 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 temperature. © 2007 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321 • Rev. 1.0.6 2 www.fairchildsemi.com FSQ0365/0265/0165/321 — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter Application Circuit AC IN Sync PWM Vfb Vcc Vstr Drain GND Vo Figure 1. Typical Flyback Application Internal Block Diagram Sync 4 Vfb 3 0.7V/0.2V + 0.35/0.55 VCC Vref VBurst - Idelay IFB 3R R SoftStart + - PWM Vstr Vcc Drain 5 2 678 OSC Vref VCC Good + 8V/12V LEB 200ns SQ RQ Gate Driver 6V VSD Sync 6V Vovp TSD 2.5 s Time Delay VCC Good SQ RQ AOCP Figure 2. Internal Block Diagram VOCP (1.1V) 1 GND FSQ0365RN Rev.00 © 2007 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321 • Rev. 1.0.6 3 www.fairchildsemi.com FSQ0365/0265/0165/321 — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter Pin Assignments Figure 3. Pin Configuration (Top View) Pin Definitions Pin# 1 Name GND 2 VCC 3 Vfb 4 Sync 5 6, 7, 8 Vstr Drain Description SenseFET source terminal on primary side and internal control ground. Positive supply voltage input. Although connected to an auxiliary transformer winding, current is suppli.


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