ALLEGRO A19530LUCCTN-FSIBCEJ-A

The A19530 is an optimized Hall effect IC that provides a user-friendly solution for direction detection and true zero-speed digital magnetic wheel or gear tooth sensing. The small package is easy to assemble and can be used with various magnetic wheels, or back-biased with a magnet for gear tooth sensing applications. The IC incorporates a patented algorithm to meet the specific operating requirements of automotive transmission applications. Target speed and direction are communicated via a variable pulse width output protocol. The A19530's high vibration-rejection option prevents direction pulses from being generated under angular vibration without sacrificing maximum air gap capability, while the non-vibration-rejection option allows continuous direction pulse output under vibration. The advanced vibration detection algorithm will systematically calibrate the sensor IC on the first tooth of true target rotation rather than on vibration, always providing accurate signals in operating mode. The A19530 also features additional classic output options—such as speed-only protocol, representing target profile, or fast direction change recognition with reduced vibration rejection—rounding out its programming panel. Advanced signal processing, innovative algorithms, short/open circuit detection capability, and ASIL B-compliant design make the A19530 an ideal solution for a wide range of speed and direction sensing needs with diagnostic requirements. The device is available in a lead-free (Pb) 3-pin SIP package with a tin-plated lead frame.

• Integrated diagnostics and certified safety design flow, compliant with ASIL B
• Three-wire output pulse width protocol supporting speed, direction, and ASIL
• Advanced algorithms for vibration detection and sudden air gap change detection
• Ring magnet and ferrous target sensing
• Air gap independent switching points
• True zero-speed operation
• Integrated EMC capacitors in a single overmolded miniature package
• Robust test coverage via scan path and IDDQ measurement

• Automotive transmission
• Speed and direction sensing
• Gear tooth sensing