Allegro MicroSystems Inc. ASIL-A, 2-Awire Hall-Effect Switch Sensor IC APS11500LLHALT-0SL1D

The APS11500 is a two-wire Hall-effect switch designed for automotive safety systems, offering ASIL A compliance per ISO 26262, internal diagnostics, and a defined safe state. It operates from 3 to 24 V with a junction temperature range of -40°C to 175°C and includes integrated overvoltage clamping (40 V), reverse-battery protection, and ESD immunity. The part is qualified to AEC-Q100 Grade 0 and is available in 3-pin SOT23-W, 3-pin SIP (UA), or 3-pin SIP with integrated passives (UC) packages. The APS11500LLHALT-0SL1D variant features a unipolar south-sensing output, a temperature coefficient of -0.2%/°C, an output current level of 5 to 6.9 mA (CC(L)), and a magnetic switch threshold of 50 to 110 G for BOP and 45 to 105 G for BRP, all specified at -40°C to 150°C ambient operation.