Diodes Incorporated

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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.


  • 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
  • Application(s)

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

    Product Parameters

    Compliance (Only Automotive supports PPAP) Standard
    AEC Qualified No
    Type Voltage output
    Minimum S+ Common-Mode Sense Voltage (V) 9.5
    Maximum S+ Common-Mode Sense Voltage (V) 21
    Minimum VCC/VB Supply Voltage (V) -
    Maximum VCC/VB Supply Voltage (V) -
    Sense Voltage VMAX (mV) 250
    Maximum Output Voltage (V) VS- -1
    Voltage output Gain VOUT/VSENSE (V/V) -
    Current output Gain Iout/VSENSE (mA/V) -
    % Accuracy @ VSENSE =100mV Ta (%) -
    Quiescent Current (µA) 1600
    IS- S- Input current (nA) 100
    Bandwidth typ (MHz) -
    Operating Ambient Temperature Range (°C) -40 to 85
    Special Features Series Transistor Drive + Programmable Threshold + Output Flag

    Related Content


    Technical Documents

    Application Notes

    ICP Reports


    Evaluation Boards and User Guides

    Recommended Soldering Techniques


    Diodes Incorporated's current monitors are high-performance, high-side/power rail current measurement ICs. They greatly simplify the measurement of load currents without disturbing the ground plane/reference point.

    The current monitor families contain variants with quiescent currents as low as 3µA, and others with operating voltages up to 60V, proving solutions for overcurrent detection in consumer, industrial, and automotive applications. The portfolio includes current output variants which via an external resistor to ground to provide adjustable gain, and voltage output variants with fixed gains.

    Automotive-compliant variants are available which are qualified to AEC-Q100 Grade 1 in IATF 16949 facilities supporting PPAP documentation.

    RoHS CofC

    Product Change Notices (PCNs)

    A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

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