SF5545
SF5545 is Current Mode PWM Controller manufactured by SiFirst.
FEATURES
- Less than 100m W Standby Power
- Proprietary η -Balance TM Control to Boost
Light Load Efficiency
- Proprietary “Zero OCP/OPP Recovery Gap”
Control
- Proprietary “Audio pensation”
Noise
Free
- Latch Plug-off Protection with External
Triggering
- Fixed 65KHz Switching Frequency
- Built-in Frequency Shuffling
- Built-in Soft Start Function
- Frequency Reduction and Burst Mode Control for Energy Saving
- Built-in Synchronous Slope pensation
- Cycle-by-Cycle Current Limiting
- Built-in Leading Edge Blanking (LEB)
- Current Mode Control
- Pin Floating Protection
- Very Low Startup Current
- Audio Noise Free Operation
- VDD UVLO, OVP & Clamp
APPLICATIONS
Offline AC/DC Flyback Converter for
- AC/DC Adaptors
- Open-frame SMPS
GENERAL DESCRIPTION
SF5545 is a high performance, high efficiency, highly integrated current mode PWM controller for offline...
