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ACS70331EOLCTR-005B3 - Allegro Microsystems

Description: High Sensitivity, Gmr-Based Current Sensor IC

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ACS70331EOLCTR-005B3 - Allegro Microsystems - PCB symbol
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ACS70331EOLCTR-005B3 - Allegro Microsystems PCB footprint - Small Outline Packages - Small Outline Packages - OL, 8-Lead SOIC
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ACS70331EOLCTR-005B3 - Allegro Microsystems - 3D model - Small Outline Packages - OL, 8-Lead SOIC
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ACS70331EOLCTR-005B3 Details

  • Manufacturer Part Number:

    ACS70331EOLCTR-005B3

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    3

  • Body Breadth:

    3.9 mm

  • Body Height:

    1.47 mm

  • Body Length or Diameter:

    4.9 mm

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    ANALOG

  • Output Type:

    ANALOG VOLTAGE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape/Style:

    RECTANGULAR

  • Sensors/Transducers Type:

    MAGNETIC FIELD SENSOR,MAGNETORESISTIVE,GMR

  • Supply Voltage-Max:

    4.5 V

  • Supply Voltage-Min:

    3 V

  • Surface Mount:

    YES

ACS70331EOLCTR-005B3 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 sense lines and keep the layout symmetrical.
  • 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 device is rated for operation from -40°C to 125°C. However, the accuracy of the current measurement 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. You may need to add external circuitry to determine the direction of the current.
  • Use proper shielding, grounding, and filtering techniques to minimize EMI and RFI. Ensure that the device is placed in a shielded area, and use twisted-pair or shielded cables for connections. Follow proper PCB layout and design practices to minimize radiation and susceptibility.

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ACS70331EOLCTR-005B3 Overview

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