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CT431-HSWF50DR - Allegro Microsystems

Description: Current Sensor 50A 1 Channel Magnetoresistive Unidirectional 16-SOIC (0.295", 7.50mm Width)

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CT431-HSWF50DR - Allegro Microsystems - PCB symbol
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PCB Footprints
CT431-HSWF50DR - Allegro Microsystems PCB footprint - Small Outline Packages - Small Outline Packages - SOICW-16
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CT431-HSWF50DR - Allegro Microsystems - 3D model - Small Outline Packages - SOICW-16
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CT431-HSWF50DR Details

  • Manufacturer Part Number:

    CT431-HSWF50DR

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Package Description:

    SOIC-16

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    3

  • Body Breadth:

    7.5 mm

  • Body Height:

    2.34 mm

  • Body Length or Diameter:

    10.21 mm

  • JESD-609 Code:

    e3

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    OPEN-DRAIN

  • Output Range:

    0-3.6V

  • Output Type:

    VOLTAGE OUTPUT

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Equivalence Code:

    SOP16,.4

  • Package Shape/Style:

    RECTANGULAR

  • Sensors/Transducers Type:

    CURRENT SENSOR

  • Supply Voltage-Max:

    3.6 V

  • Supply Voltage-Min:

    3 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Tin (Sn)

CT431-HSWF50DR Frequently Asked Questions (FAQs)

  • Allegro recommends a 4-layer PCB with a solid ground plane, and the use of vias to connect the ground plane to the device's GND pins. Additionally, keep the high-frequency traces short and away from noise sources.
  • To ensure accurate current measurements, use a burden resistor with a low tolerance (e.g., 1%), and ensure the CT431-HSWF50DR is operated within its specified temperature range. Also, calibrate the device according to the datasheet's calibration procedure.
  • The maximum allowable voltage on the VCC pin is 5.5V. Exceeding this voltage may damage the device. It's recommended to use a voltage regulator or a voltage clamp to ensure the VCC pin voltage remains within the specified range.
  • The CT431-HSWF50DR is rated for operation up to 125°C. However, the device's accuracy and reliability may degrade at high temperatures. It's recommended to derate the device's specifications according to the datasheet's thermal derating curves.
  • To troubleshoot issues, start by verifying the device's power supply and ground connections. Check for proper PCB layout and routing. Use an oscilloscope to verify the output signal and ensure it's within the specified range. Consult the datasheet's troubleshooting section and Allegro's application notes for further guidance.

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