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SF5879

SiFirst
Part Number SF5879
Manufacturer SiFirst
Description PWM Power Switch
Published Mar 12, 2019
Detailed Description SF5879 HV-mWTM、2nd Generation Quasi-Resonant (QR-IITM ) PWM Power Switch FEATURES ◆ Meet EPS Level 6 ◆ Built-in 600V P...
Datasheet PDF File SF5879 PDF File

SF5879
SF5879

Overview
SF5879 HV-mWTM、2nd Generation Quasi-Resonant (QR-IITM ) PWM Power Switch FEATURES ◆ Meet EPS Level 6 ◆ Built-in 600V Power MOSFET ◆ Proprietary QR-IITM Technology: ●Digital Anti-jitter for Audio Noise Free Operation ● Digital Frequency Foldback ● Digital Frequency Jittering ◆ Proprietary HV-mWTM to Achieve Less than 80mW Standby Power ◆ Multi-Mode Operation for High Efficiency ◆ 12.
7us Maximum On Time ◆ 80KHz Maximum Frequency Limit ◆ 53KHz Frequency Low Clamping in QR Mode ◆ Maximum 65% Duty Cycle ◆ Adaptive Slope Compensation for CCM Mode ◆ Built-in Soft Start Function ◆ Built-in Synchronous Slope Compensation ◆ Cycle-by-Cycle Current Limiting ◆ Leading Edge Blanking (LEB) ◆ Constant Power Limiting ◆ VDD UVLO, OVP & Clamp APPLICATIONS Offline AC/DC Flyback Converter for ◆ AC/DC Adaptors ◆ SMPS Power Supply GENERAL DESCRIPTION SF5879 is a high performance, 2nd Generation QuasiResonant (QR-IITM) PWM power switch for offline flyback power c...


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