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Part Number: DRV5032
Would you pls help for questions about DRV5032? Thanks.
1. Omnipolar: if it means always has output, no matter S or N closer DRV5032?
2. There is no output of DRV5032 when magnet close, can I say “Hall Sensor no work”?
Yes, omnipolar means that either pole of a magnet should exhibit a response from the device. That said, not all the of the DRV5032 family is omnipolar. See the table below for a quick reference of your chosen device's setup. Also, many of our devices are open drain. If this is the case, they would need a pull up resistor to VCC to function correctly. See here:
Prior to saying the device is not working, would it be possible to share which device you are using, and a schematic of the device setup?
Carolus Andrews, Analog Applications, Current and Hall Effect Sensors
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