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DRV5055: DRV5055

Part Number: DRV5055
Other Parts Discussed in Thread: DRV5056


My name's Abdoul and I have a few questions about TI's linear hall effect sensor (DRV5055). We want to use a combination of the hall sensor with an appropriate magnet placed on a float to determine fill level of a liquid inside a container. The datasheet mentions that the linear magnetic sensing range for the DRV5055A4 is +/- 176mT, is there a way we can determine the proper magnet (size, magnetic strength, etc.) that should be used in this case and also what the minimum distance between magnet and sensor should be? 

Thank you