Allegro MicroSystems Inc. ASIL-A, 2-Awire Hall-Effect Switch Sensor IC APS11500LLHALX-0NL1A

The APS11500 is a two-wire planar Hall-effect switch designed for automotive safety applications, featuring ASIL A compliance as a safety element out-of-context under ISO 26262. It operates from 3 to 24 V, withstands junction temperatures up to 175°C, and is AEC-Q100 Grade 0 qualified. The device includes integrated overvoltage clamping (40 V), reverse-battery protection, and internal diagnostics with a defined safe state. The APS11500LLHALX-0NL1A variant is packaged in a 3-pin SOT23-W surface-mount package and configured for unipolar north magnetic field sensing with a switch threshold magnitude of 50 to 110 G for BOP and 45 to 105 G for BRP. It offers a high output current level of 5 to 6.9 mA and includes an integrated overvoltage clamp and reverse-battery diode. A bundled 10,000-piece reel is standard for this ordering option.