Detect whether there is a magnet sensor

[Ceceliaanne]

Hello, everyone,
I am working on a product, mainly to detect whether there is a receiver in the finished mobile phone. But because the magnetism of the earpiece is relatively weak and relatively small, I have used a Hall sensor, but I can’t test it. See if you have any other sensors that can be used, I recommend it.

[MarshallKenn]

Not familiar with the application.But I heard that YSS188 is pretty good.

[Leo]

Maybe you can try to search for reliable electronic platforms such as easybom.com, Digikey.com, mouser.com

[Krupashankar · Accepted solution]

Hi @Ceceliaanne,

For your application of measuring the very low magnetic field will recommend using TLE493D-W2B6 which can be configured in short-range to measure a very low magnetic field up to 10mT and lower.

TLE493D-W2B6 can be interfaced using I2C and can be configured to short-range mode by setting the bit X2

You could also refer to the user manual: https://www.infineon.com/dgdl/Infineon-TLE493D-W2B6-UM-v01_01-UserManual-v01_11-EN.pdf?fileId=5546d4...

Please refer to Datasheet: https://www.infineon.com/dgdl/Infineon-TLE493D-W2B6-DataSheet-v01_20-EN.pdf?fileId=5546d462617643590...

Could you please provide details of your hall sensor and what will be the minimum magnetic field you want to measure?

Thanks,

Krupashankar