High Performance PWM Power Switch
SF1538
High Performance PWM Power Switch Programmable Fsw
FEATURES
◆ Built-in 600V Power MOSFET ◆ Proprietary “Zero OCP...
Description
SF1538
High Performance PWM Power Switch Programmable Fsw
FEATURES
◆ Built-in 600V Power MOSFET ◆ Proprietary “Zero OCP/OPP Recovery Gap”
Control ◆ Programmable Switching Frequency ◆ Built-in Soft Start Function ◆ All Pins Floating Protection ◆ Very Low Startup Current ◆ High Voltage CMOS Process with Excellent
ESD Protection ◆ Frequency Reduction and Burst Mode Control
for Energy Saving ◆ Current Mode Control ◆ Built-in Frequency Shuffling ◆ Programmable Switching Frequency ◆ Built-in Synchronous Slope Compensation ◆ Cycle-by-Cycle Current Limiting ◆ Built-in Leading Edge Blanking (LEB) ◆ Constant Power Limiting ◆ 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
TYPICAL APPLICATION
GENERAL DESCRIPTION
SF1538 is a high performance, low cost, highly integrated current mode PWM...
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