The A19352 is a giant magnetoresistance (GMR) magnetic sensor integrated circuit (IC) designed to measure ring magnets used in automotive braking systems, to provide wheel speed and direction data. The IC fully integrates sensing elements, voltage regulators, analog-to-digital converters, and a digital controller to adaptively measure the magnetic signal and provide a robust, low-jitter advanced AK protocol output across the two-wire interface.
The A19352 features Allegro’s SolidSpeed Digital Architecture, the latest mixed-signal speed sensor architecture for highly adaptive performance that provides the widest dynamic range of operating air gap and compensates for temperature drift effects. Flexibility is passed to the system integrator, enabling looser mechanical constraints with a wide operating air gap.
The A19352 was developed in accordance with ISO 26262 as a hardware safety element out of context with ASIL B(D) capability (pending assessment) for use in automotive safety related systems when integrated and used in the manner prescribed in the applicable safety manual and datasheet.
