Infineon TLE4922-XAN-F: A High-Performance Differential Hall Effect Sensor for Demanding Applications

The Infineon TLE4922-XAN-F represents a significant advancement in the field of magnetic sensing, offering engineers a robust and highly reliable solution for precise position detection. As a differential Hall effect sensor, it is specifically engineered to excel in automotive and industrial environments where operational integrity is non-negotiable.

This sensor's core strength lies in its differential measurement principle. Unlike single Hall sensors that measure absolute magnetic field strength, the TLE4922-XAN-F utilizes two Hall plates integrated on a single chip. It calculates the magnetic flux difference between these two points, effectively canceling out common-mode disturbances such as external stray fields or temperature drift. This inherent noise immunity makes it exceptionally suited for applications near electric motors or high-current cables, where electromagnetic interference (EMI) is prevalent.

Key performance characteristics solidify its high-performance status. The device features a wide operating voltage range from 3.5 V to 24 V, accommodating various power supply conditions. Its high magnetic sensitivity allows for large air gaps between the sensor and the target magnet, providing greater design flexibility for engineers. Furthermore, it offers a high switching accuracy and excellent stability over the entire temperature range (-40 °C to 150 °C), ensuring consistent performance under the hood of a vehicle or on a factory floor.

The TLE4922-XAN-F is predominantly used for sensing rotational speed, a critical requirement in modern automotive systems. Its primary applications include:

Crankshaft and camshaft position sensing in engine management systems.

Wheel speed detection for anti-lock braking systems (ABS) and traction control.

Gearbox and transmission speed monitoring.

In summary, the Infineon TLE4922-XAN-F stands out as a premier choice for designers who require uncompromising accuracy, resilience, and reliability. Its differential design provides a critical advantage in electrically noisy environments, making it a cornerstone component for safety-critical automotive and industrial systems.

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Keywords: Differential Hall Effect Sensor, Magnetic Immunity, Crankshaft Position Sensing, High-Temperature Operation, Automotive Grade