Part SF1539
Description PWM Power Switch
Manufacturer SiFirst
Size 543.38 KB
SiFirst

SF1539 Overview

Description

SF1539 is a high performance, high efficiency, highly integrated current mode PWM power switch for offline flyback converter appli.

Key Features

  • Built-in 600V 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