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    BMM150 located close to an inductor

    Yaron
    Occasional Visitor

    BMM150 located close to an inductor

    Hi,

    In our preliminary PCB layout the BMM150 is located about ~1cm from an inductor of a DC/DC switching regulator.

    Can it affect the normal functionality of the device?

    Should we move it away from the inductor?

    Are there any other layout recommendations ?

     

    Thanks in advance,

    Yaron.

    3 REPLIES 3
    FAE_CA1
    Community Moderator

    Re: BMM150 located close to an inductor

    Hi,

    Thanks for your inquiry.

    It should be OK for the inductor of DC-DC switching converter being 1cm away from BMM150. You can verify this by collecting BMM150 data when rotating your device in 3D space randomly. If you see BMM150 data is saturated, then it means the magnetic field generated by the inductor is too strong and the inductor should be placed further away from BMM150. Otherwise, it is ok because the hard-iron and soft-iron effect caused by the inductor can be calibrated and compensated.

    We have handling, soldering and mounting instructions for BMM150. If you give me your email address through private message, then I can email it to you.

    Thanks.

    gme_katharina
    Occasional Visitor

    Re: BMM150 located close to an inductor

    Hi,

    we have a similar question regarding our PCB design and BMM150 placement but did not find any handling, soldering and mounting instruction for BMM150. Can you point me to it?

    Thanks in advance,

    Katharina

    FAE_CA1
    Community Moderator

    Re: BMM150 located close to an inductor

    Hi,

    Thanks for your inquiry.

    Please see the attached "BST-MCS-HS000-04.pdf" for BMM150 handling, soldering & mounting instructions.

    Thanks.

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