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Original question:

Looking for a Hall-effect Magnetic sensor

Planar Hall sensor for high density magnetic flux

Agustin Polero
Prodigy 10 points

Hi, im in the need of a linear hall sensor being able to work in a 2+ Tesla magnetic field, preferably one that can interact with a magnetic flux that runs parallel (i need to insert the sensor inside a magnetic core so that machining can be minimal).

The most important thing is the sensor being able to read properly changes within the 2 tesla range.

Thanks

  • 0
    TI__Genius 17640 points

    Agustin,

    Unfortunately, 2T is beyond the linear input range of all of our sensors.  While they should be able to withstand this condition, the inputs would saturate and result with unusable outputs.  

    If the peak magnetic field is 2T at the source, you may still be able to use the sensor at some distance from the source.  TMAG5170A2 has our maximum sensing input range of +/- 300 mT.  This device is a 3D linear Hall-effect sensor capable of detecting all three components of the field and communicates over SPI.  However, since you are suggesting it is likely that you will have little to no range from the source, it is likely that even this device will saturate.

    In the event that you can place the sensor elsewhere and then detect a smaller magnitude (but still useful) component for your function, then this device might provide the flexibility you need to avoid the machining effort.

    Thanks,

    Scott