Launching Next-generation Position Sensors

The MLX90371 and MLX90372 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). This facilitates the decoding of the absolute rotary or linear position of any moving magnet, enabling the design of non-contact position sensors. The MLX90371 offers analog or PWM output while the MLX90372 offers SENT (SAE J2716 rev Apr 2016) or PWM output.

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. By measuring a magnetic field gradient, the device is intrinsically insensitive to stray fields up to 4 kA/m (or 5 mT), which are the levels required by many major automotive manufacturers. 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.

Download the MLX90371 and MLX90372 product flyers.