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SF1539

SiFirst
Part Number SF1539
Manufacturer SiFirst
Description PWM Power Switch
Published Dec 19, 2018
Detailed Description SF1539 η -BalanceTM PWM Power Switch Fixed 50KHz Fsw FEATURES ◆ Built-in 600V Power MOSFET ◆ Proprietary η -BalanceTM ...
Datasheet PDF File SF1539 PDF File

SF1539
SF1539

Overview
SF1539 η -BalanceTM PWM Power Switch Fixed 50KHz Fsw 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 ◆ 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 Flyba...


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