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High-Side Inrush Current Limit Controller

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The ZXCT1032 is a high-side current monitor that drives a PMOS or PNP transistor to provide in-rush current limit and over-current protection. The ZXCT1032 includes a high accuracy high-side current monitor, a start-up timer and a re-try inhibit timer.


  • Electronic fuse
  • Short circuit protected supply feed
  • Hot swap
  • Power over twisted pair


  • Accurate high-side current sensing
  • User defined and dynamically adjustabletrip current
  • Load switch control
  • Fault flag logic output
  • User defined ramp and inhibit timers
  • SO-8 package
  • Temperature range -40 to 85°C
  • Product Specifications

    Product Parameters

    Qualified to AECQ10x -
    Compliance (Only Automotive supports PPAP) -
    Minimum VCC/VB Supply Voltage 9.5 V
    Maximum VCC/VB Supply Voltage 21 V
    Minimum S+ Common-Mode Sense Voltage 9.5 V
    Maximum S+ Common-Mode Sense Voltage 21 V
    Maximum Output Voltage VS- -1 V
    Maximum Sense Voltage 0.25 V
    % Accuracy @ VSENSE =100mV Ta  - %
    Quiescent Current 1600 µA
    Gain Output/VSENSE -
    Bandwidth typ - MHz
    Operating Ambient Temperature Range -40 to 85 °C
    Special Features Series Transistor Drive + Programmable Threshold + Output Flag

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    Orderable Part Number Buy from Distributor / Contact Sales Request Samples


    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Avnet EU 500 4/18/2021 Germany Buy Now
    Arrow Electronics 500 4/18/2021 United States Buy Now
    Digi-Key Electronics 5500 4/18/2021 Europe, Asia, North America Buy Now
    Farnell, An Avnet Company 390 4/18/2021 England Buy Now
    Farnell, An Avnet Company 390 4/18/2021 England Buy Now
    Mouser Electronics Inc. 1157 4/18/2021 South America, North America, Asia, Europe, Middle East Buy Now
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    Product Change Notices

    PCN # Issue Date Implementation Date Subject
    PCN-2505 2021-01-26 2021-07-26 Device End of Life (EOL)