WSH413NL
Hall Effect Switch IC with Thermal Protection
Features:
Operate from 2.8V to 40V supply voltage.
On-chip Hall sensor.
Internal bandgap regulator allows temperature compensated operations and a
wide operating voltage range.
High output sinking capability up to 350mA for driving large load.
Lower current change rate reduces the peak output voltages during switching.
Available in rugged low profile SIP-4L packages.
Built-in protection diode for reverse power supply fault.
Built-in
thermal protection.
Output react at
South
Magnetic Field
recover at
Zero
or
North
Magnetic Field
General Description:
WSH413NL is designed to integrate Hall sensor with complementary output drivers
on the same chip, It includes a temperature compensated voltage regulator, a
differential amplifier, a Hysteresis controller, two Darlington output drivers capable of
sinking 350mA current load. An on-chip protection diode is implemented to prevent
reverse power fault. And built-in
thermal protection circuit
can protect system to be
burned out due to fault application.
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. This make chip can operate smoothly on high range of ambient
temperature. WSH413NL are rated for operation over temperature range from –20˚ C
to 100˚C and voltage ranges from 2.8V to 40V.
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2009/5/21
WSH413NL
Pin Descriptions:
Name
P/I/O
Vcc
P
OUT1
O
OUT2
O
Vss
P
Pin#
1
2
3
4
Description
Positive Power Supply
Output Pin #1
Output Pin #2
Ground
Absolute Maximum Rating (at Ta=25˚ C)
Supply Voltage
Vcc --------------------------
Output breakdown Voltage
Vout -------------------------
Magnetic flux density
B --------------------------
Reverse Protection Voltage
Vr --------------------------
Output Current continuous
Ic --------------------------
Operating Temperature Range
Storage Temperature Range
Package Power Dissipation
Ta
--------------------------
Ts --------------------------
Pd --------------------------
40V
46V
Unlimited
40V
350mA
(-20˚C to +100˚C)
(-65˚C to +150˚C)
450mw for SIP-4L
Electrical Characteristics:
(T=+25˚C, Vcc=2.8V to 40V)
Characteristic
Symbol Test Conditions
Min
Typ Max Units
Supply Voltage
Vcc
V
─
2.8
─
40
Output Saturation Vout(sat) Vcc=24V, Ic=200mA
─
V
0.75
1.0
Voltage
B > Bop
Output Leakage
Ileakage Vcc=24V, B < Brp
uA
─
<0.1
10
Current
Supply Current
Isupply Vcc=24V, Output &
mA
─
5
10
FG Open
Output Rising Time
Tr
3.0
us
Vcc=12V, RL=820Ω
─
10
CL=20Pf
Output Falling
Tf
us
Vcc=12V, RL=820Ω
─
0.3
1.5
Time
CL=20Pf
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2009/5/21
WSH413NL
Function Block:
Magnetic Characteristics:
Characteristics
Operate Point
Release Point
Hysteresis Window
Symbol
Bop
Brp
Bop-Brp
Quantity
Grade A
Garde B
Grade A
Grade B
Ta= -20˚C to +100˚C
Min
Typ.
Max
40
100
40
250
10
80
10
230
10
80
Unit
Gauss
Gauss
Gauss
Ordering Information:
SIP- 4L: WSH413NL-XPAN□
N: Non-lead Process
Grade
Grade:
SIP-4L :
1:
A Grade (100 Gauss)
2:
B Grade (250 Gauss)
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2009/5/21
WSH413NL
Package Information:
SIP-4L:
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2009/5/21
WSH413NL
Application Circuit:
SIP-4L
Figure 1.
Put additional resistor between
Power line
and
Pin 1
of W413NL can greatly
incerease the surge voltage protection ability of system.
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2009/5/21
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