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ACS72981ELRATR-200U3 - Allegro Microsystems

Description: High-Precision Linear Hall-Effect-Based Current Sensor IC With 200µΩ Current Conductor

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ACS72981ELRATR-200U3 - Allegro Microsystems - PCB symbol
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PCB Footprints
ACS72981ELRATR-200U3 - Allegro Microsystems PCB footprint - Other - Other - LR, 7-Pin PSOF Package
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3D Models
ACS72981ELRATR-200U3 - Allegro Microsystems - 3D model - Other - LR, 7-Pin PSOF Package
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ACS72981ELRATR-200U3 Details

  • Manufacturer Part Number:

    ACS72981ELRATR-200U3

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOF-7

  • Manufacturer:

    Allegro MicroSystems LLC

  • Body Breadth:

    4.8 mm

  • Body Height:

    1.5 mm

  • Body Length or Diameter:

    6.4 mm

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    7

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Type:

    ANALOG VOLTAGE

  • Package Body Material:

    PLASTIC/EPOXY

  • 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

  • Technology:

    BICMOS

  • Terminal Finish:

    MATTE TIN

ACS72981ELRATR-200U3 Frequently Asked Questions (FAQs)

  • A good PCB layout for the ACS72981ELRATR-200U3 involves keeping the sense lines as short as possible, using a ground plane to reduce noise, and placing the device close to the current-carrying conductor. Allegro provides a recommended PCB layout in their application note AN296068.
  • Calibration of the ACS72981ELRATR-200U3 involves applying a known current to the device and adjusting the zero-current offset and sensitivity to achieve accurate measurements. Allegro provides a calibration procedure in their application note AN296068.
  • The maximum allowable voltage on the VCC pin of the ACS72981ELRATR-200U3 is 5.5V. Exceeding this voltage can damage the device.
  • The ACS72981ELRATR-200U3 is designed to measure DC currents, but it can also be used to measure AC currents with some limitations. The device can measure AC currents up to 50 kHz, but the accuracy may degrade at higher frequencies.
  • To protect the ACS72981ELRATR-200U3 from EMI, use a shielded cable for the sense lines, keep the device away from high-current carrying conductors, and use a common-mode filter or a ferrite bead on the sense lines.

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ACS72981ELRATR-200U3 Overview

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