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Winson Semiconductor

WSH131 Datasheet Preview

WSH131 Datasheet

Omnipolar Hall Effect Switch IC

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WSH131
Omnipolar Hall Effect Switch IC
Features:
z Operates from 2.4V to 26V supply voltage
z Operation with North or South Pole
z On-chip Hall Sensor and driver
z On-chip temperature compensation circuitry minimizes shifts in On/Off points
temperature and supply voltage
z On-chip voltage regulator to stabilize On/Off switch point
z Wide range operating temperature –20 ~ 85
z Easily Manufacturability with magnet pole independence
South or North magnetic field: Output Low
No magnetic field : Output High.
Functional Description:
WSH131 is designed to integrate pole independent Hall sensor with output driver
together on the same chip. Either North or South magnetic field with sufficient
strength will turn the output on (low). In the absence of a magnetic field, output is off
(high). The polarity independence allow WSH131 to easily replace reed switches for
superior reliability and case of manufacturing.
To improve stability, 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. 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. WSH131 are rated for operation over temperature range from –20˚ C
to 85 ˚C and voltage ranges from 2.4V to 26V.
Pin Descriptions:
Name
P/I/O
Vdd P
Gnd P
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, 2013/5/23(Rev. B)
1




Winson Semiconductor

WSH131 Datasheet Preview

WSH131 Datasheet

Omnipolar Hall Effect Switch IC

No Preview Available !

WSH131
Absolute Maximum Rating (at Ta=25˚ C)
Supply Voltage
Vcc --------------------------
Output breakdown Voltage
Magnetic flux density
Vout(breakdown) ---------------
B --------------------------
Output ON Current (continuous) Ic --------------------------
Operating Temperature Range Ta --------------------------
Storage Temperature Range
Ts --------------------------
Package Power Dissipation
Pd --------------------------
26V
30V
Unlimited
20mA
(-20˚C to +85˚C)
(-65˚C to +150˚C)
350mw
Electrical Characteristics:
(T=+25˚C, Vcc=2.4V to 26V)
Characteristic
Symbol Test Conditions Min Typ Max Units
Supply Voltage
Vcc
2.4 26 V
Output Saturation
Voltage
Output Leakage
Current
Supply Current
Vout Vcc=12V,Ic=10mA 0.2 0.6
(sat) B > Bop
Ileakage Vcc=12V, B<Brp <0.1 10
V
uA
Is(off) Vcc=12V,Output
Open
3.0 6 mA
Function Block:
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2013/5/23(Rev. B)
2


Part Number WSH131
Description Omnipolar Hall Effect Switch IC
Maker Winson Semiconductor
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WSH131 Datasheet PDF






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