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      SAP2842E
      CURRENT MODE PWM CONTROLLER

      The SAP2842E 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
      SAP2842ESA SOP-8-225-1.27 2842ESA Halogen free Tube
      SAP2842ESATR SOP-8-225-1.27 2842ESA Halogen free Tape & Reel
      Block Diagram

      SAP2842E 英文（4500&1725）.png

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