SiFirst SF1539W
SF1539W is a high performance, high efficiency, highly integrated current mode PWM power switch for offline flyback converter app| Part No. | SF1539W |
|---|---|
| Datasheet | SF1539W Download |
| Manufacturer | SiFirst |
| Description | PWM Power Switch |
| Buy | Stock & Price |
FEATURES
● Built-in 700V Power MOSFET● Proprietary η -BalanceTM Control to Boost Light Load Efficiency
● Proprietary “Zero OCP/OPP Recovery Gap” Control
● Fixed 50KHz Switching Frequency
● Built-in Soft Start Function
● Very Low Startup Current
● Frequency Reduction and Burst Mode Control for Energy Saving
● Current Mode Control
● Built-in Frequency Shuffling
● Built-in Synchronous Slope Compensation
● Cycle-by-Cycle Current Limiting
● Built-in Leading Edge Blanking (LEB)
● Constant Power Limiting
● Pins Floating Protection
● Audio Noise Free Operation
● VDD OVP & Clamp
● VDD Under Voltage Lockout (UVLO)
APPLICATIONS
Offline AC/DC Flyback Converter for● AC/DC Adaptors
● Open-frame SMPS
● Set-Top Box Power Supplies
● ATX Standby Power
GENERAL DESCRIPTION
