Diodes Incorporated — Analog and discrete power solutions
SOT25

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ZXCT1081 (NRND)

NRND = Not Recommended for New Design

Alternative Parts: ZXCT1083, ZXCT1085, ZXCT1087

High Voltage High-Side Current Monitor

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Description

The ZXCT1081 is a high side current sense monitor with a gain of 10 and a voltage output. Using this device eliminates the need to disrupt the ground plane when sensing a load current. The wide input voltage range of 40V down to as low as 3V make it suitable for a range of applications; including systems operating from industrial 24-28V rails and power supplies.

Feature(s)

  • 3V to 40V continuous high side voltage
  • Accurate high-side current sensing
  • Output voltage scaling x10
  • 4.5V to 12V VCC range
  • Low quiescent current: - 80μA supply pin - 30μA ISENSE+
  • SOT25 package
  • -40°C to 125°C ambient temperature range
  • Application(s)

  • Automotive current measurement
  • Industrial applications current measurement
  • Battery management
  • Over current monitor
  • Power management
  • Power adapters
  • Product Specifications

    Product Parameters

    % Accuracy @ VSENSE =100mV Ta (%) -
    % Accuracy @ VSENSE =100mV Ta  -
    Compliance (Only Automotive supports PPAP) ZXCT1081Q
    Bandwidth typ (MHz) 0.5
    Bandwidth typ (MHz) 0.5
    Compliance (Only Automotive supports PPAP) Standard
    Current output Gain Iout/VSENSE (mA/V) -
    Gain Output/VSENSE 10
    IS- S- Input current (nA) 40
    Maximum Output Voltage (V) 1.5
    Maximum Output Voltage (V) VS- -1
    Maximum S+ Common-Mode Sense Voltage 40
    Maximum S+ Common-Mode Sense Voltage (V) 40
    Maximum Sense Voltage 0.15
    Maximum VCC/VB Supply Voltage 12
    Maximum VCC/VB Supply Voltage (V) 12
    Minimum S+ Common-Mode Sense Voltage 3
    Minimum S+ Common-Mode Sense Voltage (V) 3
    Minimum VCC/VB Supply Voltage 4.5
    Minimum VCC/VB Supply Voltage (V) 4.5
    Operating Ambient Temperature Range (°C) -40 to 125
    AEC Qualified No
    Quiescent Current (µA) 30
    Quiescent Current (µA) 30
    Sense Voltage VMAX (mV) 150
    Special Features Separate Vcc Pin + 40V CM + Extended Temp Range
    Type Voltage output
    Voltage output Gain VOUT/VSENSE (V/V) 10

    Related Content

    Packages

    Technical Documents

    Application Notes

    Design Tools

    ICP Reports

    Evaluation Boards and User Guides

    Recommended Soldering Techniques

    TN1.pdf

    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-2698 2024-10-09 2025-04-09 Product End of Life (EOL)