SF1539中文资料AD/DC芯片-副边反馈数据手册SiFirst规格书

描述 Description

Offline AC/DC Flyback Converter forAC/DC AdaptorsOpen-frame SMPSSet-Top Box Power SuppliesATX Standby Power

特性 Features

Built-in 600V power MOSFET
Proprietary η-BalanceTM control to Boost Light Load Efficiency
Proprietary \"zero OCP/OPP recovery gap\" control
All Pins Floating Protection and Built-in soft start function
Very Low Startup Current and Audio Noise Free Operation
Fixed 50KHz Switching Frequency
Frequency Reduction and Burst Mode Control for Energy Saving
Current Mode Control and Cycle-by-Cycle Current Limiting
Built-in Frequency Shuffling
Built-in synchronous slope compensation
Built-in Leading Edge Blanking (LEB)
Constant Power Limiting
High voltage CMOS process with excellent ESD protection
Over Temperature protection（OTP）

应用 Application

Offline AC/DC Flyback Converter for
• AC/DC Adaptors
• Open-frame SMPS
• Set-Top Box Power Supplies
• ATX Standby Power