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SF5773S Datasheet

Part Number SF5773S
Manufacturers SiFirst
Logo SiFirst
Description PWM Controller
Datasheet SF5773S DatasheetSF5773S Datasheet (PDF)

SF5773S 2nd Generation Quasi-Resonant (QR-IITM ) PWM Controller with Brownout Protection FEATURES ◆ Easily Meet EPS Level 6 ◆ AC Brownout Protection (BOP) ◆ Proprietary QR-IITM Technology: ●Digital Anti-jitter for Audio Noise Free Operation ● Digital Frequency Foldback ● Digital Frequency Jittering for Better EMI ◆ Less than 100mW Standby Power ◆ Multi-Mode Operation for High Efficiency ◆ 12.7us Maximum On Time ◆ 80KHz Maximum Frequency Limit ◆ 52KHz Frequency Low Clamping in QR Mode ◆ 65% Maxi.

  SF5773S   SF5773S






Part Number SF5773
Manufacturers SiFirst
Logo SiFirst
Description Generation Quasi-Resonant PWM Controller
Datasheet SF5773S DatasheetSF5773 Datasheet (PDF)

SF5773 2nd Generation Quasi-Resonant (QR-IITM ) PWM Controller FEATURES ◆ Easily Meet EPS Level 6 ◆ Proprietary QR-IITM Technology: ●Digital Anti-jitter for Audio Noise Free Operation ● Digital Frequency Foldback ● Digital Frequency Jittering for Better EMI ◆ Less than 100mW Standby Power ◆ Multi-Mode Operation for High Efficiency ◆ 12.7us Maximum On Time ◆ 80KHz Maximum Frequency Limit ◆ 52KHz Frequency Low Clamping in QR Mode ◆ 65% Maximum Duty Cycle ◆ Adaptive Slope Compensation for CCM Mode.

  SF5773S   SF5773S







PWM Controller

SF5773S 2nd Generation Quasi-Resonant (QR-IITM ) PWM Controller with Brownout Protection FEATURES ◆ Easily Meet EPS Level 6 ◆ AC Brownout Protection (BOP) ◆ Proprietary QR-IITM Technology: ●Digital Anti-jitter for Audio Noise Free Operation ● Digital Frequency Foldback ● Digital Frequency Jittering for Better EMI ◆ Less than 100mW Standby Power ◆ Multi-Mode Operation for High Efficiency ◆ 12.7us Maximum On Time ◆ 80KHz Maximum Frequency Limit ◆ 52KHz Frequency Low Clamping in QR Mode ◆ 65% Maximum Duty Cycle ◆ Adaptive Slope Compensation for CCM Mode ◆ Built-in Soft Start Function ◆ Pin Floating Protection ◆ 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 SF5773S is a high performance, 2nd Generation Quasi-Resonant (QR-IITM) PWM con.


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