Infineon TLE4927C-E6947 High-Precision Differential Hall Effect Sensor for Automotive Applications

The Infineon TLE4927C-E6947 is a state-of-the-art differential Hall effect sensor engineered to meet the rigorous demands of modern automotive systems. Designed for high-precision applications, this sensor provides exceptional performance in measuring rotational speed and position, making it a critical component in safety and powertrain systems.

At its core, the device utilizes a differential measurement principle, which significantly enhances its robustness against common-mode magnetic fields and external disturbances such as temperature fluctuations and mechanical stress. This capability ensures reliable and accurate signal acquisition even in the electrically noisy environments typical of automotive applications. The sensor's high sensitivity allows it to detect very small changes in magnetic fields, enabling its use with low magnetic gradients and small air gaps.

A key feature of the TLE4927C-E6947 is its integrated self-calibration function, which automatically adjusts the magnetic operating points during every zero crossing. This unique capability compensates for magnet aging, mechanical misalignment, and temperature drift over the device’s lifetime, thereby maintaining long-term accuracy and reducing the need for manual recalibration. The sensor operates across a wide supply voltage range from 3.0 V to 18 V and can withstand temperatures from -40 °C to 150 °C, making it suitable for under-hood applications like transmission speed sensing and anti-lock braking systems (ABS).

Furthermore, the device offers reverse polarity protection and is immune to ESD events, aligning with stringent automotive quality and reliability standards such as AEC-Q100. Its two-wire interface simplifies system integration while providing a digital output signal that is easy to process by microcontrollers.

ICGOODFIND: The Infineon TLE4927C-E6947 sets a high standard for reliability and precision in automotive Hall effect sensing, combining advanced differential signal processing with intelligent self-calibration to deliver consistent performance in challenging conditions.

Keywords:

Differential Hall Sensor, Automotive Applications, Self-Calibration, High-Precision, Rotational Speed Sensing