WSH130 is designed to integrate the Hall sensor with the output driver together on the same chip, it 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, and an open-collector output driver capable of sinking up to 20 mA current load. An on-chip protection resistor is implemented to prevent reverse power faults. 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 output can keep switching on/off on a more precise switch point regardless of the ambient temperature. WSH130 are rated for operation over a temperature range from -40? to +125? and voltage ranges from 2.4 V to 26 V.

Features:

• Operates from 2.4 V to 26 V supply voltage with reverse voltage protection
• Operates with magnetic fields from DC to 15 kHz
• On-chip Hall Sensor
• On-chip temperature compensation circuitry minimizes shifts in on and off points and hysteresis over temperature and supply voltage
• Ideal sensor for speed measurement, revolution counting, positioning, and DC brushless motors
• On (L) with magnetic South pole and Off (H) with North pole