SF5580
SF5580 is PWM Controller manufactured by SiFirst.
FEATURES
- Proprietary HV-m WTM to Achieve Less than
50m W Standby Power
- Proprietary η-Balance TM Control to Boost
Light Load Efficiency
- Proprietary “Zero OCP/OPP Recovery Gap”
Control
- Latch Plug-off Protection with External
Triggering
- Fixed 65KHz Switching Frequency
- Built-in Soft Start Function
- Pin Floating Protection
- Frequency Reduction and Burst Mode Control for Energy Saving
- Current Mode Control
- Built-in Frequency Shuffling
- Built-in Synchronous Slope pensation
- Cycle-by-Cycle Current Limiting
- Leading Edge Blanking (LEB)
- Constant Power Limiting
- Audio Noise Free Operation
- VDD UVLO, OVP & Clamp
APPLICATIONS
Offline AC/DC Flyback Converter for
- AC/DC Adaptors
- Open-frame SMPS
- Print Power, Scanners, and Motor Drivers
GENERAL DESCRIPTION
SF5580 is a high performance, highly integrated current mode PWM controller for medium to large offline flyback...
