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Infineon TLE4922

Highly robust, easy-to-use mono-Hall speed sensor with twist-independent mounting

This sensor is specially designed to provide an easy-to-use, robust and cost-effective solution for vehicle or industrial speed sensing applications. The TLE4922 can therefore be back-biased using a simple, low-cost bulk magnet, while providing a good air gap performance and switching accuracy. Its hidden adaptive hysteresis and calibration algorithm enables good accuracy over air gap jumps and immunity to vibration and run-out events.

Thanks to its mono-cell design, the TLE4922 is the perfect choice for applications requiring twist-independent mounting. As a result, the TLE4922 is well suited for replacing passive sensors, such as Variable Reluctance Sensors (VRS), in automotive and 2-wheeler applications by providing higher accuracy and a better jitter performance. The improved EMC, ESD and temperature robustness are perfectly suited for use in the harsh environmental conditions prevalent in automotive or dedicated industrial applications. The TLE4922 comes in a thin 4-pin SSO-4-1 package using a standard 3-wire voltage interface.

Features

  • Large operating air gap capability
  • Twist-independent mounting
  • Hidden adaptive hysteresis
  • Low current consumption
  • Reverse magnetic polarity capability
  • Advanced protection technology
  • Reverse voltage protection at Vs-pin
  • Short-circuit protection
  • Over temperature protection
  • Wide operating temperature ranges of -40°C to +150°C
  • High ESD robustness up to ±4 kV HBM
  • 3-wire PWM voltage interface

Applications

  • 2-wheeler – vehicle speed, engine speed, transmission speed
  • Automotive vehicle speed
  • Industrial applications

TLE4922: Typical sensor setup for gear wheel application with back bias magnet and magnetic encoder wheel application

Infineon TLE4922

Block diagram

Infineon TLE4922 block diagram

Infineon TLE4922 series

Infineon TLE4922 Related Documents

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Infineon

TLE4922

This sensor is specially designed to provide an easy-to-use, robust and cost-effective solution for vehicle or industrial speed sensing applications.