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PDF WSH181 Data sheet ( Hoja de datos )
| Número de pieza | WSH181 | |
| Descripción | Hall Effect Switch IC | |
| Fabricantes | Winson Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de WSH181 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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WSH181
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) with North pole
Functional Description :
WSH181 is designed to integrate Hall sensor with 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 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 open collector output switches to the appropriate state.
WSH181 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 --------------------------
Output breakdown Voltage
Vout(breakdown) ----------------
Magnetic flux density
B --------------------------
26V
30V
Unlimited
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2013/5/23
1 page  
Application Circuit:
Fan Application:
WSH181
Magnetic detector:
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2013/5/23
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet WSH181.PDF ] | |
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