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WSH134

Winson Semiconductor
Part Number WSH134
Manufacturer Winson Semiconductor
Description Unipolar Hall Effect Switch IC
Published Apr 18, 2016
Detailed Description WSH134 Unipolar Hall Effect Switch IC Features: z Operates from 2.4V to 26V supply voltage with reverse voltage protect...
Datasheet PDF File WSH134 PDF File

WSH134
WSH134

Overview
WSH134 Unipolar Hall Effect Switch IC Features: z Operates from 2.
4V to 26V supply voltage with reverse voltage protection z Operates with magnetic fields from DC to 15kHz z On-chip Hall Sensor 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, and DC brushless motors z On (L) with magnetic South pole and Off(H) without magnetic field or with magnetic North pole Functional Description : WSH134 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 open-collector 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.
WSH134 are rated for operation over temperature range from –40˚ C to 125 ˚C and voltage ranges from 2.
4V to 26V.
Pin Descriptions: Name P/I/O Vdd P Gnd O Vout O Pin# 1 2 3 Description Positive Power Supply Ground Output Pin Absolute Maximum Rating (at Ta=25˚ C) Supply Voltage Vcc -------------------------- 26V Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2013/5/23 WSH134 Output breakdown Voltage Magnetic flux density Reverse Protection Voltage Output ON Current (continuous) Operating Temperature Range Storage Temperature Range Package Power Dissipation Vout(breakdown) ---------------B -------------------------Vr -------------------------Ic -----------------...


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