SLIA097 March 2022 DRV5011 , DRV5011 , DRV5012 , DRV5012 , DRV5013 , DRV5013 , DRV5015 , DRV5015 , DRV5021 , DRV5021 , DRV5023 , DRV5023 , DRV5032 , DRV5032 , DRV5033 , DRV5033 , TMAG5110 , TMAG5110 , TMAG5111 , TMAG5111 , TMAG5123 , TMAG5123 , TMAG5231 , TMAG5231 , TMAG5328 , TMAG5328
Magnetic error sources originate from physical and material variation in magnet construction. Such errors are typically specified by the magnet supplier, or otherwise calculated by evaluating maximum tolerance error. Notably, magnetic error has more or less influence over a sensing system depending on the Hall-effect sensor being used. Design tolerance into systems using magnets and Hall-effect sensors.
Another magnetic source for error is in device variation. Manufacturing variance causes characteristics like typical BRP and typical BOP to differ between Hall-effect devices. Hall sensor data sheets include minimum, typical, and maximum values for magnetic characteristics. Consider these values in verifying the suitability of a Hall sensor and magnet.