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WSH1132

Winson Semiconductor
Part Number WSH1132
Manufacturer Winson Semiconductor
Description Unipolar Hall Effect Switch IC
Published Apr 18, 2016
Detailed Description WSH1132 Unipolar Hall Effect Switch IC Features: z Operates from 2.4V to 20V supply voltage z Operates with magnetic fie...
Datasheet PDF File WSH1132 PDF File

WSH1132
WSH1132

Overview
WSH1132 Unipolar Hall Effect Switch IC Features: z Operates from 2.
4V to 20V supply voltage z Operates with magnetic fields from DC to 15kHz z On-chip Hall Sensor and pull-high resistor z On-chip temperature compensation circuitry minimizes shifts in on and off points and hysteresis over temperature and supply voltage z Ideal sensor for speed measurement, revolution counting, positioning z Off (High) with magnetic North pole and On (Low) without magnetic field or with magnetic South pole Functional Description : WSH1132 is designed to integrate Hall sensor with output driver together on the same chip, it is suitable for speed measurement, revolution counting, positioning.
It includes a temperature compensated voltage regulator, a differential amplifier, a Hysteresis controller and a output driver capable of sinking up to 20mA current load.
An on-chip protection resistor 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 output can keep switching on/off on more precise switch point regardless to the ambient temperature.
WSH1132 are rated for operation over temperature range from –20˚ C to 125 ˚C and voltage ranges from 2.
4V to 20V.
Pin Descriptions: Name P/I/O Vdd P Gnd O Vout O Pin# 1 2 3 Description Positive Power Supply Ground Output Pin Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2014/9/9 WSH1132 Absolute Maximum Rating (at Ta=25˚ C) Supply Voltage Vcc -------------------------- Output breakdown Voltage Vout(breakdown) ---------------- Magnetic flux density B -------------------------- Output ON Current (continuous) Ic -------------------------- Operating Temperature Range Ta -------------------------- Storage Temperature Range Ts -------------------------- Package Power Dissipation Pd ------------------...


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