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ACS72981KLRATR-150B5 - Allegro Microsystems

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

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ACS72981KLRATR-150B5 - Allegro Microsystems - PCB symbol
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ACS72981KLRATR-150B5 - Allegro Microsystems PCB footprint - Other - Other - LR, 7-Pin PSOF Package
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ACS72981KLRATR-150B5 - Allegro Microsystems - 3D model - Other - LR, 7-Pin PSOF Package
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ACS72981KLRATR-150B5 Details

  • Manufacturer Part Number:

    ACS72981KLRATR-150B5

  • 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

  • JESD-609 Code:

    e3

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    7

  • Operating Temperature-Max:

    125 °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:

    5.5 V

  • Supply Voltage-Min:

    4.5 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Terminal Finish:

    MATTE TIN

ACS72981KLRATR-150B5 Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the sense lines as short as possible and away from noise sources. Use a common mode filter or a ferrite bead to reduce noise.
  • Calibration involves applying a known current to the device and adjusting the zero-current offset and sensitivity to match the expected output. Use a high-accuracy current source and a multimeter to measure the output voltage.
  • The device is rated for operation from -40°C to 150°C. However, the accuracy and linearity of the device may degrade at extreme temperatures. Ensure proper thermal management and heat sinking to maintain optimal performance.
  • Yes, the device can measure bidirectional currents. However, the output voltage will be proportional to the absolute value of the current. Use an external circuit or a microcontroller to determine the direction of the current.
  • Use shielding, grounding, and filtering to minimize EMI and RFI. Ensure the device is placed in a shielded enclosure, and use twisted pair or shielded cables for connections. Add EMI filters or ferrite beads to the power and signal lines.

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ACS72981KLRATR-150B5 Overview

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