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    SAP2843E
    CURRENT MODE PWM CONTROLLER

    The SAP2843E provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic   to insure latched operation, a PWM comparator which also provides current limit control and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N channel MOSFETs, is low in the off state.

    Main feature

    • Optimized for off-line and DC to DC converts

    • Low start up current (<0.5mA)

    • Automatic feed forward compensation

    • Pulse-by-Pulse current limiting

    • Enhanced load response characteristics

    • Under-voltage lockout with hysteresis

    • Double pulse Suppression

    • High current totem pole output

    • Internally trimmed bandgap reference

    • 500kHz operation


    Ordering Information
    Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
    SAP2843ESA SOP-8-225-1.27 2843ESA Halogen free Tube
    SAP2843ESATR SOP-8-225-1.27 2843ESA Halogen free Tape&Reel
    Block Diagram

    SAP2843E 英文.png

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