SF5773
SF5773 is Generation Quasi-Resonant PWM Controller manufactured by SiFirst.
FEATURES
- Easily Meet EPS Level 6
- Proprietary QR-IITM Technology:
- Digital Anti-jitter for Audio Noise Free Operation
- Digital Frequency Foldback
- Digital Frequency Jittering for Better EMI
- Less than 100m W Standby Power
- Multi-Mode Operation for High Efficiency
- 12.7us Maximum On Time
- 80KHz Maximum Frequency Limit
- 52KHz Frequency Low Clamping in QR Mode
- 65% Maximum Duty Cycle
- Adaptive Slope pensation for CCM Mode
- Built-in Soft Start Function
- Pin Floating Protection
- Built-in Synchronous Slope pensation
- Cycle-by-Cycle Current Limiting
- Leading Edge Blanking (LEB)
- Constant Power Limiting
- VDD UVLO, OVP & Clamp
APPLICATIONS
Offline AC/DC Flyback Converter for
- AC/DC Adaptors
- SMPS Power Supply
GENERAL DESCRIPTION
SF5773 is a high performance, 2nd Generation Quasi Resonant (QR-IITM) PWM controller for offline flyback power converter applications....
