Melexis introduces a new generation of integrated sensing and brushed motor drive solutions

Melexis announces the launch of a new generation of integrated sensing and brushed motor drive solutions for automotive applications such as seat mobility, window lifts and sunroofs, including the MLX81325 and MLX92255. This dual integrated circuit solution can The sensing function is directly integrated into the drive electronics to reduce design costs and design time, helping engineers design low-cost, high-performance automotive solutions.

The MLX81325 is a smart integrated motor pre-driver with local interconnect network (LIN) capability and protocol controller in a tiny QFN 32-pin 5mm x 5mm package that performs precision PowerFET control to create an efficient, low-noise brushed motor Drives for smooth start-stop. This integrated solution contains 4 FET PWM pre-drivers, 32k flash memory and 16k ROM. Internally integrated diagnostics, current sensing for smart anti-pinch protection. Total 8 I/O lines Supports position sensors directly connected to Melexis, simplifying system design, especially providing self-learning and soft-stop functionality.

The companion MLX92255 is a mixed-signal CMOS based second-generation dual Hall-effect latch that provides two speed outputs and an on-board voltage regulator. Each Hall sensor provides advanced offset cancellation and two Open-drain output driver, the entire device is available in a small 5-pin TSOT package that measures only 2.75mm x 2.90mm.