Allegro MicroSystems Inc. 2-Wire ASIL Compliant Transmission Speed And Direction IC A19520LUBBTN-RSNHPYUE

The A19520 is a vibration-tolerant Hall-effect sensor IC designed to measure rotational speed and direction of transmission targets using ring magnets or ferrous components. It features a 2-pin miniature SIP package (suffix UB) with an integrated capacitor, available in 10 nF or 22 nF variants, and operates from -40°C to 150°C ambient. The device employs a two-wire current source output with pulse-width modulation and is ASIL B compliant as a safety element out-of-context under ISO 26262. It includes integrated diagnostics and EEPROM for factory traceability, with high vibration immunity and adaptive algorithms for stable operation under dynamic air gap conditions.