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    SD7528
    TRANSITION-MODE PFC CONTROLLER

    SD7528 is a high performance transition-mode power factor correction (PFC) controller.

    SD7528 includes a highly linear multiplier, able to reduce AC input current distortion.

    The output voltage is controlled by means of a voltage-mode error amplifier and a precise internal voltage reference.

    The device features very low consumption with current maximum 15μA before start-up and less than 5.5mA during working.

    SD7528 includes a disable function suitable for IC remote ON/OFF.

    An effective two-step OVP enables to safely handle over-voltage either occurring at start-up or resulting from load disconnection.


    Main feature

    • High-performance linear multiplier

    • Zero current detector

    • Built-in restart timer

    • Integrate digital LEB

    • Precision adjustable overvoltage protection

    • Disable function

    • Low start-up current (15μA)

    • Low quiescent operating current (3.0mA)

    • Available in DIP-8 or SOP-8 package.


    Ordering Information
    Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
    SD7528 DIP-8-300-2.54 SD7528 Halogen free Tube
    SD7528S SOP-8-225-1.27 SD7528S Halogen free Tube
    SD7528STR SOP-8-225-1.27 SD7528S Halogen free Tape&Reel
    Block Diagram

    SD7528英.png

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