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High-Accuracy Hall-Effect Transmission Speed Sensor IC with ASIL B Compliance

A19420

The A19420 provides precise speed sensing for ring magnets or ferrous targets, with ASIL B compliance for functional safety in automotive applications. Features include a two-wire interface, integrated diagnostics, and differential sensing for robust performance.

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Top Features

Packaging

  • Differential Hall-effect sensor measures ring magnets and ferrous targets with inherent stray field immunity
  • SolidSpeed Digital Architecture™ supports advanced algorithms, maintaining pitch and duty cycle accuracy during dynamic air gap disturbances
  • Integrated solution includes a capacitor in a single overmolded package
  • ISO 26262:2011 ASIL B with integrated diagnostics and certified safety design process (pending assessment)
  • Two-wire current source output protocol supporting speed and ASIL error reporting
  • EEPROM enables traceability throughout product life cycle

The A19420  is available in a lead (Pb) free 2-pin SIP (Suffix UB) package with a 100% matte tin plated leadframe.

UB Package Documentation

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Part Number Specifications and Availability

Documentation and Resources

Documentation

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Documents Found: 32
Document Type Document Name
Application Note
Methods and Validation of Stray Magnetic Field Mitigation in Magnetic Speed Sensor ICs
Application Note
Fundamental Properties of Speed Sensors