Functional safety applications such as automated driving are the target of a pair of Hall sensors from Allegro MicroSystems. They are pin-compatible upgrades for existing three-wire Hall switch and latch ICs, developed in accordance with ISO 26262:2011 with ASIL-B capability (pending assessment). APS11450 devices are unipolar switches APS12450 devices are bipolar latches Self-test features are integrated, ...
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from Electronics Weekly https://www.electronicsweekly.com/news/products/sensors-products/magnetic-switch-integrated-self-test-self-driving-cars-2019-03/
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