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    SDH8593AS
    HIGH PRECISION CC/CV PRIMARY SIDE POWER SWITCH WITH INTEGRATED MOSFET

        SDH8593AS is a high performance off-line PSR power switch which operates in PFM to achieve high performance and high efficiency. It integrates a 650V MOSFET and high voltage startup to decrease physical volume. Both the output current and voltage are sensed by primary side signal process. 

        SDH8593AS removes the need for secondary feedback circuitry while achieving excellent line and load regulation. It also eliminates the need for loop compensation while maintaining stability over all operation conditions. SDH8593AS is suitable for the output power of 8~10W .


    Main feature

    • Primary-side Feedback Eliminates Opto-isolators 

    • High Precision Constant Voltage and Current Regulation at Universal AC Input

    • Ultra Low Start-up Current 

    • Programmable CV and CC Regulation

    • Programmable Cable Drop Compensation

    • Integrated 650V MOSFET

    • Integrated High Voltage Startup 

    • Low Standby Power

    • Built-in Line Voltage and Primary Winding Inductance Compensation

    • Built in Leading Edge Blanking(LEB)

    • No External Compensation Required

    • On-chip OTP

    • VCC Over Voltage Protection

    • Output Over Voltage Protection

    • VCC Under Voltage Lockout with Hysteresis(UVLO)

    • Cycle-by-Cycle Current Limiting

    • Output Short Circuit Protection

    • Over Current Protection

    • Maximum on time protection


    Ordering Information
    Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
    SDH8593ASTR SOP-7-225-1.27 SDH8593AS Halogen free Tape & Reel
    SDH8593AS SOP-7-225-1.27 SDH8593AS Halogen free Tube
    Block Diagram

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