WSH410

WSH410 is designed to integrate Hall sensor with complementary output drivers and frequency generator together on the same chip, WSH410 is suitable for speed measurement, revolution counting, positioning, and DC brushless motors. It includes a temperature compensated voltage regulator, a differential amplifier, a Hysteresis controller, two open-collector output drivers capable of sinking 400mA current load. An on-chip protection diode is implemented to prevent reverse power fault.

The temperature-dependent bias increases the supply voltage of the hall plates and adjusts the switching points to the decreasing induction of magnets at higher temperatures. Subsequently, the open collector output switches to the appropriate state. WSH410 are rated for operation over temperature range from 20˚ C to125˚C and voltage ranges from 2.8V to 20V.