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Magnetic material for DRV5053

Other Parts Discussed in Thread: DRV5053

Hi,

I use DRV5053 to measure the distance between the hall sensor and a magnetic material, but I found if the magnetism were too stronge, the measurement was insensitive. Could you recommend a magnetic material for this application?

Thanks.

  • Hi Di,

    Our expert has been notified and should reply soon.
  • Hi Di, you have several variables to adjust, to prevent reaching the saturation region where the DRV5053 output no longer changes.

    1. Use a smaller magnet.  Larger magnets project more flux density at a given distance.

    2. There are different DRV5053 versions to choose from.  The "OA" is the least sensitive and typically saturates >73mT.  This calculator provides an easy way to see possible output voltages for any magnetic flux density.

    3. Use a different magnetic material, such as a ferrite, which has lower flux density than many other types.

    Best regards,
    RE