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High-Performance GMR Wheel Speed and Direction Sensor IC with AK Protocol

A19351

Allegro 2-Pin SIP UB Package

The A19351 provides precise wheel speed and direction data using GMR technology and an advanced AK protocol output. Its adaptive digital controller and wide dynamic range ensure robust performance in automotive applications.

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Top Features

Packaging

• GMR technology integrates high sensitivity MR (magnetoresistive) sensor elements and high precision BiCMOS circuits on a single silicon integrated circuit, offering high accuracy, low magnetic field operation.  This technology provides highly repeatable, ultra-low jitter signal for iTPMS and ADAS applications

• Wide air gap capability eases mechanical mounting tolerance requirements to enable lower cost AK Protocol compliant output with air gap information

• SolidSpeed Digital Architecture™ provides robust, adaptive performance with advanced algorithms

• ISO 26262 ASIL B(D) with integrated diagnostics and certified safety design process

The IC is offered in the 2-pin SIP package (suffix UB) that is lead (Pb) free, with tin leadframe plating. The UB package includes an IC and protection capacitor integrated into a single overmolded package, with an additional molded leadstabilizing bar for robust shipping and ease of assembly.

UB Package Documentation

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Part Number Specifications and Availability

Documentation and Resources

Documentation

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Documents Found: 2
Document Type Document Name
Application Note
Fundamental Properties of Speed Sensors
Application Note
Wheel Speed Sensors Operating in Harsh Environments