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ACS37012LLZATR-030B3 - Allegro Microsystems

Description: 450 kHz, High Accuracy Current Sensor With FAULT or Reference Output in SOIC-6 Package

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ACS37012LLZATR-030B3 - Allegro Microsystems - PCB symbol
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ACS37012LLZATR-030B3 - Allegro Microsystems PCB footprint - Other - Other - LZ_FAULT
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ACS37012LLZATR-030B3 - Allegro Microsystems - 3D model - Other - LZ_FAULT
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ACS37012LLZATR-030B3 Details

  • Manufacturer Part Number:

    ACS37012LLZATR-030B3

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Manufacturer:

    Allegro MicroSystems LLC

  • Body Breadth:

    3.9 mm

  • Body Height:

    1.47 mm

  • Body Length or Diameter:

    4.89 mm

  • JESD-609 Code:

    e3

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    6

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    ANALOG

  • Output Type:

    ANALOG VOLTAGE

  • Package Body Material:

    PLASTIC

  • Package Equivalence Code:

    SOP6,.25

  • Package Shape/Style:

    RECTANGULAR

  • Screening Level:

    AEC-Q100

  • Sensors/Transducers Type:

    CURRENT SENSOR

  • Supply Voltage-Max:

    3.6 V

  • Supply Voltage-Min:

    3 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn)

ACS37012LLZATR-030B3 Frequently Asked Questions (FAQs)

  • Allegro provides a recommended PCB layout in the application note AN269041, which includes guidelines for trace routing, and component placement to minimize noise and ensure accurate current measurement.
  • Calibration involves adjusting the zero-current output voltage and the sensitivity of the device. Allegro provides a calibration procedure in the datasheet, which involves applying a known current and measuring the output voltage, and then adjusting the calibration registers accordingly.
  • The ACS37012LLZATR-030B3 has a specified temperature range of -40°C to 150°C. Temperature affects the accuracy of the current measurement, with a typical drift of ±0.1% per °C. Allegro provides temperature compensation coefficients in the application note AN269041 to help correct for temperature-related errors.
  • Yes, the ACS37012LLZATR-030B3 can be used for bidirectional current measurement. The device has a differential output that allows it to detect the direction of the current flow. However, the user needs to implement additional circuitry and software to handle the bidirectional current measurement.
  • Allegro recommends using a low-pass filter with a cutoff frequency of around 100 kHz to 1 MHz to filter out high-frequency components and aliasing effects. The filter design depends on the specific application and the desired signal-to-noise ratio.

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