Profile: Allegro Microsystems, Inc. specializes in the development, manufacture and marketing of high-performance power and hall-effect sensor integrated circuits. We offer a broad line of silicon-based products that serve many high-end applications within automotive and industrial electronics. Our sensor ICs are based on hall-effect technology, which allows contactless sensing devoid of mechanical wear, sensing either an external magnet or a ferrous object. Specifically, hall-effect sensor ICs are used for highly accurate gear-tooth sensing, direction detection, linear sensing, speed sensing, position sensing, and contactless switching.