SiFirst SF1531
SF1531 is a high performance, high efficiency, low cost, highly integrated current mode PWM controller for| Part No. | SF1531 |
|---|---|
| Datasheet | SF1531 Download |
| Manufacturer | SiFirst |
| Description | Current Mode PWM Controller |
| Buy | Stock & Price |
FEATURES
● Proprietary η-BalanceTM Control to Boost Light Load Efficiency● Proprietary “Zero OCP/OPP Recovery Gap” Control
● Built-in Soft Start Function
● 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
● Pins Floating Protection
● 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
GENERAL DESCRIPTION
