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ACS70331EESATR-2P5U3 - Allegro Microsystems

Description: High Sensitivity, 1 MHz, GMR-Based Current Sensor IC in Space-Saving Low Resistance QFN and SOIC packages

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ACS70331EESATR-2P5U3 - Allegro Microsystems - PCB symbol
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PCB Footprints
ACS70331EESATR-2P5U3 - Allegro Microsystems PCB footprint - Other - Other - ES, 12-Contact QFN-2
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ACS70331EESATR-2P5U3 - Allegro Microsystems - 3D model - Other - ES, 12-Contact QFN-2
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ACS70331EESATR-2P5U3 Details

  • Manufacturer Part Number:

    ACS70331EESATR-2P5U3

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    3

  • Body Breadth:

    3 mm

  • Body Height:

    0.725 mm

  • Body Length or Diameter:

    3 mm

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    12

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    ANALOG

  • Output Type:

    ANALOG VOLTAGE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Equivalence Code:

    LCC12,.12SQ,20

  • Package Shape/Style:

    SQUARE

  • Sensors/Transducers Type:

    MAGNETIC FIELD SENSOR,MAGNETORESISTIVE,GMR

  • Supply Voltage-Max:

    4.5 V

  • Supply Voltage-Min:

    3 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Tin (Sn)

ACS70331EESATR-2P5U3 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 low-impedance path for the current conductor and a high-impedance path for the sense lines.
  • Calibration involves applying a known current to the device and adjusting the offset and gain registers to achieve accurate measurement. Refer to the application note AN296065 for detailed calibration procedures.
  • The maximum allowable current is 50 A, but it's recommended to operate within the specified range of -40 A to 40 A for optimal accuracy and reliability.
  • The device has an overcurrent detection feature that can be used to trigger an interrupt or shutdown the system. Implement a suitable overcurrent protection scheme based on the application requirements.
  • The device is rated for operation up to 150°C, but the accuracy and reliability may degrade at higher temperatures. Ensure proper thermal management and consider derating the device for high-temperature applications.

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ACS70331EESATR-2P5U3 Overview

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