WSH130
Operates from 2.4V to 26V supply voltage with reverse voltage protection
Operates with magnetic fields from DC to 15kHz
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
Specifications :
Switching type: latch or non-latch type (S pole)
Latch: On(L) with magnetic
South
pole and Off (H) with
North
pole
Non-Latch: On (L) with magnetic
South
pole and Off(H) without magnetic field
Functional Description :
WSH130 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.
WSH130 are rated for operation over temperature range from
–40˚
C to 125
˚C
and
voltage ranges from 2.4V to 26V.
Name
Vdd
Gnd
Vout
P/I/O
P
O
O
Pin#
Description
Positive Power Supply
Ground
Output Pin
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson,
2005/8/25
WSH130
Supply Voltage
Output breakdown Voltage
Magnetic flux density
Vcc --------------------------
26V
Vout
(breakdown)
---------------- 30V
B -------------------------- Unlimited
--------------------------
--------------------------
--------------------------
--------------------------
26V
25mA
(-40˚C to +125˚C)
(-65˚C to +150˚C)
500mw
Reverse Protection Voltage
Vr
Output ON Current (continuous) Ic
Operating Temperature Range
Storage Temperature Range
Package Power Dissipation
Characteristic
Supply Voltage
Output Saturation
Voltage
Output Leakage
Current
Supply Current
Output Rise Time
Output Falling Time
Ta
Ts
Pd --------------------------
(T=+25˚C, Vcc=2.4V to 26V)
Symbol Test Conditions
Min
Typ Max Units
Vcc
V
Vout Vcc=12V,Ic=10mA
V
(sat) B > Bop
Ileakage Vcc=12V, B<Brp
UA
<
Isupply Vcc=12V,Output
Open
Tr
Vcc=12V,RL=2K
CL=20Pf
Tf
Vcc=12V,RL=2K
CL=20Pf
mA
1.0
Us
Us
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson,
2005/8/25
Embedded System
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