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Vibration Tolerant, High Accuracy Hall-Effect Wheel Speed and Direction Sensor IC

A19303

Allegro 2-Pin SIP UB Package

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The A19303 is a Hall-effect integrated circuit (IC) with an advanced algorithm for optimal signal compensation and industry leading vibration detection. The vibration detection ensures reliable speed measurement. The Hall-effect technology is suitable for sensing magnetic encoders or, with the use of a back-bias magnet, ferrous gear tooth targets. The high output accuracy and sensing flexibility offers direction and speed information ideal for wheel speed applications.
• Hall-effect Technology allows ease of use for ring magnet and ferromagnetic target sensing 
• Vibration Detection optimized for wheel speed applications allows for blanking of vibration on vibration with minimum delay in output recovery 
• Digital AK Protocol provides speed and direction information, and signal integrity 
• PWM Protocol provides speed and direction information.
• Integrated Capacitor in a single overmolded miniature package provides greater EMC robustness 

The IC is offered in the UB package, which integrates the IC and a high temperature ceramic capacitor in a single overmolded SIP package for enhanced EMC performance. The 2-pin SIP package is lead (Pb) free, with tin leadframe plating.

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Documentation

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Documents Found: 32
Document Type Document Name
Application Note
August 27, 2019
Differential Hall-Effect Sensors: Safer and More Reliable for Two-Wheelers of the Future
Application Note
Methods and Validation of Stray Magnetic Field Mitigation in Magnetic Speed Sensor ICs
Application Note
Fundamental Properties of Speed Sensors