XENSIV magnetic switches support functional safety in automotive applications
When developing applications for autonomous driving, compliance with the ISO 26262 standard is crucial – at both the system and sensor levels. To meet these demands, Infineon has introduced the XENSIV TLE4960x magnetic switch family. Developed in accordance with ISO 26262, the TLE4960x switches integrate diagnostic functions to support functional safety applications with requirements up to ASIL B. They are the only ASIL-B-compliant switches on the market that can address a wide range of automotive applications, including window regulators, sunroof actuators, and seat adjustment. In addition, the devices are AEC-Q100 compliant and qualified to Grade 0, ensuring robust performance in harsh environments.
The TLE4960x devices are designed to measure the magnetic field orthogonal to the printed circuit board in the Z-direction and feature an open-drain output for speed information. They also include integrated overcurrent and overtemperature protection. Housed in a standardised SOT23-3 SMD package, the sensors require only 1.6 mA and operate across an extended temperature range from -40°C to 175°C. Their temperature stability makes them ideal for harsh automotive environments.
