Dear sir, I am going to design a gear tooth detector like picture below, and tend to use DRV5023 +14.5 / +6 mT (BI) to implement this function. Is this workable ? or is this right part for this applicaton? please give me some suggestion. Thanks.
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Dear sir, I am going to design a gear tooth detector like picture below, and tend to use DRV5023 +14.5 / +6 mT (BI) to implement this function. Is this workable ? or is this right part for this applicaton? please give me some suggestion. Thanks.
Dears,
Thanks for your kindly help. To be honest, I have tested below both parts but It seems doesn't work . I still can not got the gear waveform in the output . I wonder if there is something wrong. Could you please give me some suggestion? Thanks.
DRV5023BIQLPGM
DRV5023AJQLPGM
Have you tried orienting the magnet in both ways, with the North and South pole facing the device? Also, maybe you can try different separation distances between the magnet and sensor, and sensor and gear. Also, do you have just a solid piece of metal you can experiment with? You could also try using the DRV5053 and seeing the change in analog voltage, since that provides more information than the digital switch.
Best regards,
RE
So do you see a change in the DRV5053 voltage based on the presence of the gear tooth?
I suspect the digital versions aren't toggling because the metal gear doesn't cause the magnetic field to change sufficiently at the sensor. The most reliable way to see the change is likely with the DRV5053.
Best regards,
RE
I've tested the DRV5053 using a back-biased magnet, and observed a change in voltage with a metal object present on the other side. It's small, and it depends on several factors including the distance of the magnet, the size of the metal, and the DRV5053 version. It sounds like it's not working well for your application. If the DRV5053 isn't changing in voltage, the digital versions definitely won't switch.
Best regards,
RE