Both new devices consist of a Triaxis Hall magnetic front end, an analog to digital signal conditioner, a DSP for advanced signal processing and an output stage driver. Due to the Integrated Magneto Concentrator (IMC) they are sensitive to magnetic flux in three planes (X, Y & Z).
A key feature of both parts is the robustness against stray fields that are increasingly present due to the electrification of modern vehicles, especially EV and HEV. Their ability to operate with a reduced magnetic field means that smaller and lower-cost magnets can also be used – ideal for space- and cost-constrained automotive applications.
The MLX90372 device includes an additional input pin that makes it possible to fully integrate other sensors (such as temperature, pressure, or switch inputs) allowing for the additional signal to be transmitted over the SENT output, reducing wire harness size and complexity.
“The automotive business is striving to meet new challenges and the performance enhancements of our new offering will significantly contribute to key advancements,” said Nick Czarnecki, marketing manager - Position and Speed Sensors at Melexis.