Allegro MicroSystems, has announced the release of the APS11450 and APS12450, adding two Hall-effect sensor ICs to its growing portfolio of solutions for systems that require functional safety. The APS11450 is a family of unipolar switch ICs, while the APS12450 devices are bipolar latches. 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).
These magnetic sensors have integrated self-test features that are always active in the background while the system is running, leading to very short fault detection times. This action is automatic, and the tests are executed so quickly (25µs, typical) as to be transparent to host system—even in the case of latches used in high-speed motors and encoders. The unique voltage-mode output communicates the sensor’s status (including the safe state), while remaining backward compatible with logic-level interfaces, application circuits, wiring, and firmware.
APS11450LLHALT-0SLA, APS11450LLHALT-2SLC, APS11450LLHALX-0SLA, APS11450LLHALX-2SLC, APS11450LLHALX-3SLC, APS11450LUAA-0SLA
APS12450LLHALT-0SLA, APS12450LLHALT-1SLA, APS12450LLHALT-3SLA, APS12450LLHALX-0SLA, APS12450LLHALX-1SLA, APS12450LUAA-0SLA, APS12450LUAA-1SLA, APS12450LUAA-3SLA
APS11450 Three-Wire Hall-Effect Switch
APS12450 Three-Wire Hall-Effect Latch