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    SAP2845
    CURRENT MODE PWM CONTROLLER

    The SAP2845 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
    SAP2845SA SOP-8-225-1.27 SAP2845 Halogen free Tube
    SAP2845SATR SOP-8-225-1.27 SAP2845 Halogen free Tape&Reel
    Block Diagram

    SAP2845 英文.png

    Documents
    title Types of Size (KB) date Download the latest English version
    SAP2845 0 1970-01-01 SAP2845 Brief Datasheet
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