Diodes Incorporated
SOT25

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ZXCT1010

Micro-Power High-Side Current Monitor w/ Improved Offset

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Description

The ZXCT1010 is a high side current sense monitor. Using this device eliminates the need to disrupt the ground plane when sensing a load current. It is an enhanced version of the ZXCT1009 offering reduced typical output offset and improved accuracy at low sense voltage. The wide input voltage range of 20V down to as low as 2.5V make it suitable for a range of applications. A minimum operating current of just 4µA, combined with its SOT25 package make suitable for portable battery equipment.

Feature(s)

  • Low cost, accurate high-side current sensing
  • Output voltage scaling
  • Up to 2.5V sense voltage
  • 2.5V – 20V supply range
  • 300nA typical offset current
  • 3.5μA quiescent current
  • 1% typical accuracy
  • SOT25 package
  • Application(s)

  • Battery chargers
  • Smart battery packs
  • DC motor control
  • Over current monitor
  • Power management
  • Programmable current source
  • Product Specifications

    Product Parameters

    Compliance (Only Automotive supports PPAP) Standard
    AEC Qualified No
    Type Current Output
    Minimum S+ Common-Mode Sense Voltage (V) 2.5
    Maximum S+ Common-Mode Sense Voltage (V) 20
    Minimum VCC/VB Supply Voltage (V) -
    Maximum VCC/VB Supply Voltage (V) -
    Sense Voltage VMAX (mV) 2500
    Maximum Output Voltage (V) Vs- -1
    Voltage output Gain VOUT/VSENSE (V/V) -
    Current output Gain Iout/VSENSE (mA/V) 10
    % Accuracy @ VSENSE =100mV Ta (%) 2.5
    Quiescent Current (µA) 3.5
    IS- S- Input current (nA) 100
    Bandwidth typ (MHz) 2
    Operating Ambient Temperature Range (°C) -40 to 85
    Special Features Ground Pin - (Eliminates Quiescent Current Error)

    Related Content

    Packages

    Technical Documents

    SPICE Model

    Application Notes

    ICP Reports

    Calculators

    Evaluation Boards and User Guides

    Recommended Soldering Techniques

    TN1.pdf

    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.

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