S1103

S1103
Unipolar Hall-Effect Digital Switch
Application Examples
Features and Benefits
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4.5V to 24V Operation
-40℃ to 150℃ Superior temperature operation
Bipolar technology
Open-collector 25 mA output
Reverse battery protection
Small Size-SOT23 3L
Solid-state reliability
Resistant to physical stress
Activate with small, commercially available
Permanent magnets
Automotive, Consumer and Industrial
Solid-state switch
Brushless DC motor commutation
Speed detection
Linear position detection
Angular position detection
Proximity detection
Functional Block Diagram
VDD
Voltage
Regulatr
OUT
Chopper
Hall
Plate
GND
SOT Package
Pin 1 – VDD
Pin 2 – OUT
Pin 3 – GND
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V3.10 Nov 15, 2013
S1103
Unipolar Hall-Effect Digital Switch
General Descriptions
The S1103 is a unipolar Hall-effect sensor IC fabricated
from bipolar technology. The device integrates a voltage
regulator, reverse battery protection diode, Hall sensor with
dynamic offset cancellation system, temperature
compensation circuitry, small signal amplifier, Schmitt
trigger and an open-collector output to sink up to 25 mA.
With suitable output pull up, they can be used with bipolar
or CMOS logic circuits.
with tighter magnetic specifications, designed to operate
continuously over extended temperatures to +150℃,and are
more stable with both temperature and supply voltage
changes. The unipolar switching characteristic makes these
devices ideal for use with a simple bar or rod magnet.
Thanks to its wide operating voltage range and extended
choice of temperature range, it is quite suitable for use in
automotive, industrial and consumer applications.
These Hall-effect switches are monolithic integrated circuits
Glossary of Terms
MilliTesla (mT),
Gauss
Units of magnetic flux density: 1mT = 10 Gauss
RoHS
Restriction of Hazardous Substances
Operating Point (BOP)
Magnetic flux density applied on the branded side of the package which turns the output
driver ON (VOUT = VDSon)
Release Point (BRP)
Magnetic flux density applied on the branded side of the package which turns the output
driver OFF (VOUT = high)
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V3.10 Nov 15, 2013
S1103
Unipolar Hall-Effect Digital Switch
Pin Definitions and Descriptions
SOT Pin №
Name
Type
1
VDD
Supply
Supply Voltage pin
2
OUT
Output
Open Drain Output pin
3
GND
Ground
Ground pin
Function
Absolute Maximum Ratings
Parameter
Symbol
Value
Units
Supply Voltage
VDD
28
V
Supply Current
IDD
50
mA
Output Voltage
VOUT
28
V
Output Current
IOUT
50
mA
Storage Temperature Range
TS
-65 to 170
°C
Symbol
Value
Units
Temperature Suffix “E”
TA
-40 to 85
°C
Temperature Suffix “L”
TA
-40 to 150
°C
Absolute maximum ratings
Operating Temperature Range
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum- rated conditions for
extended periods may affect device reliability
.
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V3.10 Nov 15, 2013
S1103
Unipolar Hall-Effect Digital Switch
General Electrical Specifications
DC Operating Parameters TA = 25℃, VDD= 4.5V to 24V (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Supply Voltage
VDD
Operating
4.5
Supply Current
IDD
B < BRP
4
Output Saturation Voltage
VDSon
Output Leakage Current
Typ
Max
Units
24
V
5
7
mA
IOUT = 20mA, B > BOP
0.3
0.5
V
IOFF
B < BRP VOUT = 24V
0.1
10
µA
Output Rise Time
tr
RL = 820Ω, CL = 20pF
0.04
2.0
µs
Output Fall Time
tf
RL =820Ω, CL = 20pF
0.18
2.0
µs
Magnetic Specifications
DC Operating Parameters VDD = 4.5V to 24V (unless otherwise specified)
Parameter
Symbol
Operating Point
BOP
Release Point
BRP
Hysteresis
BHYS
Test Conditions
Ta=25℃,Vdd=12V DC
Min
Typ
Max
Units
150
190
G
100
160
G
45
G
Application Information
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V3.10 Nov 15, 2013
S1103
Unipolar Hall-Effect Digital Switch
Package LH, 3-Pin SOT-23：
Notes:
1). PINOUT:
Top View
Pin 1 VDD
Pin 2 Output
Pin 3 GND
2). All dimensions are in millimeters ;
3
44yym
1
1.50 2.60
1.80 3.00
Marking:
44 -- Code of Device ;
yy -- last 2 digit of year ;
m -- Production Lot ;
2
1.70
2.10
2.70
3.10
Side View
End View
0.10
0.25
1.00
1.30
0.70
0.90
0.35
0.50
0.20
MIN
0.00
0.10
Ordering Information
Part No.
Pb-free
Temperature Code
Package Code
Packing
S1103
YES
E(-40°C to 85°C)
LHLT (SOT-23)
7-in. reel, 3000 pieces/reel
S1103
YES
L(-40°C to 150°C)
LHLT (SOT-23)
7-in. reel, 3000 pieces/reel
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V3.10 Nov 15, 2013