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FAN6300SY from FAIRCHIL,Fairchild Semiconductor

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FAN6300SY

Manufacturer: FAIRCHIL

High-Voltage Startup, Quasi-Resonant Operation

Partnumber Manufacturer Quantity Availability
FAN6300SY FAIRCHIL 5461 In Stock

Description and Introduction

High-Voltage Startup, Quasi-Resonant Operation The FAN6300SY is a power supply controller IC manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Below are its key specifications:

1. **Function** - Primary-side regulation (PSR) PWM controller for offline flyback converters.  
2. **Input Voltage Range** - Supports universal AC input (85V–265V).  
3. **Output Power** - Typically up to 15W in flyback configurations.  
4. **Switching Frequency** - Fixed at 65 kHz.  
5. **Regulation Method** - Primary-side sensing (eliminates optocoupler).  
6. **Protection Features** - Over-voltage protection (OVP), over-load protection (OLP), open-loop protection, and thermal shutdown.  
7. **Package** - SOP-8 (Small Outline Package, 8-pin).  
8. **Efficiency** - High efficiency with quasi-resonant operation.  

For exact details, refer to the official datasheet from ON Semiconductor (Fairchild legacy documentation).

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