The Infineon XENSIV™ TLE4929C-XHA products address new requirements for crankshaft speed sensing from hybrid powertrains. An advanced vibration detection algorithm ensures valid sensor data for any hybrid powertrain traction mode e.g. detecting unintended movements of the crankshaft while the car is driven by the e-motor. This improves efficiency of the engine start and helps to avoid misfiring or error messages by ECU caused by wrongly calibrated sensor data.

XENSIV™ TLE4929C-XHA sensors as well feature high adaptivity to the diversity of crankshaft application. Using the adaptive K-Factor the default 50% switching threshold (Bmax – Bmin) can be trimmed to 16 values between 40 and 60% which allows to optimize phase accuracy for different encoder designs. Compared to predecessor products from Infineon also encoders with 34 or 56 teeth are supported now.

The PG-SSO-3-53 package with Ni plating, 3-wire voltage I/F and increased supply/output capacitance of up to 470nF/1,8nF supports high EMC robustness and with its unchanged mechanical specification a high backward compatibility with predecessor products TLE4929C-XVA, TLE4929C-XAF and TLE4929C-XAN is given and design switch cost are minimized.

Summary of Features

• Crankshaft speed & direction sensing
• Missfire detection
• Ignition control