SS1050

SS1050
Unipolar Hall-Effect Digital Switch
Packages
Features and Benefits
3 pin SOT23 (suffix SO)
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3 pin SIP (suffix UA)
Functional Block Diagram
Application Examples
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VDD
Voltage
Regulatr
4.5V to 24V Operation
-40°C to 150°C Superior temperature operation
Bipolar technology
Open-collector 25 mA output
Reverse battery protection
Small Size SOT23 3L or SIP 3L
Solid-state reliability
Resistant to physical stress
Activate with small, commercially available
Permanent magnets
OUT
Automotive, Consumer and Industrial
Solid-state switch
Brushless DC motor commutation
Speed detection
Angular position detection
Linear position detection
Proximity detection
General Description
Chopper
The SS1050 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.
Hall
Plate
GND
SIP Package
SOT Package
Pin 1 – VDD
Pin 1 – VDD
Pin 2 – GND
Pin 2 – OUT
Pin 3 – OUT
Pin 3 – GND
These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to
operate continuously over extended temperatures to +150°C, 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.
The device is delivered in a Small Outline Transistor (SOT) or in a Plastic Single In Line ( SIP 3L flat). Both 3-lead
packages are RoHS compliant.
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V3.10 Nov 1, 2013
SS1050
Unipolar Hall-Effect Digital Switch
Glossary of Terms
MilliTesla (mT), Gauss
RoHS
Operating Point (BOP)
Release Point (BRP)
Units of magnetic flux density: 1mT = 10 Gauss
Restriction of Hazardous Substances
Magnetic flux density applied on the branded side of the package which turns the
output
driver ON (VOUT = VDSon)
Magnetic flux density applied on the branded side of the package which turns the
output
driver OFF (VOUT = high)
Pin Definitions and Descriptions
SOT Pin № SIP Pin №
Name
Type
Function
1
2
3
VDD
OUT
GND
Supply
Output
Ground
Supply Voltage pin
Open Drain Output pin
Ground pin
1
3
2
Absolute Maximum Ratings
Parameter
Supply Voltage
Supply Current
Output Voltage
Output Current
Storage Temperature Range
Operating Temperature Range
Temperature Suffix “E”
Temperature Suffix “K”
Temperature Suffix “L”
Symbol
VDD
IDD
VOUT
IOUT
TS
Symbol
TA
TA
TA
Value
28
50
28
50
-65 to 170
Value
-40 to 85
-40 to 125
-40 to 150
Units
V
mA
V
mA
°C
Units
°C
°C
°C
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 1, 2013
SS1050
Unipolar Hall-Effect Digital Switch
General Electrical Specifications
DC Operating Parameters TA = 25°C, VDD= 4.5V to 24V (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Supply Voltage
Supply Current
Output Saturation Voltage
Output Leakage Current
Output Rise Time
Output Fall Time
VDD
IDD
VDSon
IOFF
tr
tf
Operating
B < BRP
IOUT = 20mA, B > BOP
B < BRP VOUT = 24V
RL = 820Ω, CL = 20pF
RL = 820Ω, CL = 20pF
4.5
4
Typ
Max
Units
5
0.3
0. 1
0.04
0.18
24
7
0.5
10
2.0
2.0
V
mA
V
µA
µs
µs
Magnetic Specifications
Package
UA
SO
Parameter
Operating Point
Release Point
Hysteresis
Operating Point
Release Point
Hysteresis
Symbol
BOP
BRP
BHYST
BOP
BRP
BHYST
Test Conditions
Min
Typ
Max
Units
Ta=25°C,Vdd=12V DC
100
50
150
120
Ta=25°C,Vdd=12V DC
-150
-120
120
70
50
-120
-70
50
G
G
G
G
G
G
-100
-50
Output Behavior versus Magnetic Pole
DC Operating Parameters TA = -40°C to 150°C, VDD = 4.5V to 24V (unless otherwise specified)
Test Conditions (UA)
Test Conditions (SO)
OUT
B < BRP
B > BOP
B > BRP
B < BOP
High
Low
The SOT-23 device is reversed from the UA package. The SOT-23 output transistor will be turned on(drops low) in the
presence of a sufficiently strong North pole magnetic field applied to the marked face.
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V3.10 Nov 1, 2013
SS1050
Unipolar Hall-Effect Digital Switch
Application Information
Package Information
2.13
1.87
0.75 ± 0.05
1.52 ± 0.1
Package UA, 3-Pin SIP:
3° ± 1°
1.00
1.20
45° ± 1°
4.0 ± 0.01
1
2
3
3.0 ± 0.01
Sensor Location
Active Area Depth:
0.84(Nom)
3° ± 1°
6° ± 1°
3° ± 1°
6° ± 1°
1
2
0.05 ± 0.05
3
1.6.± 0.1
0.44± 0.01
0.38 ± 0.01
14 .5 ± 1
0.39± 0.01
Notes:
1). Controlling dimension : mm ;
2). Leads must be free of flash and plating voids ;
3). Do not bend leads within 1 mm of lead to package
interface ;
4). PINOUT: Pin 1 VDD
Pin 2 GND
Pin 3 Output
1.27
2.54
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V3.10 Nov 1, 2013
SS1050
Unipolar Hall-Effect Digital Switch
Package SO, 3-Pin SOT-23:
Notes
1). PINOUT:
Top
3
2.60
1.50 3.00
1.80
1
Side Vie
Pin 1 VDD
Pin 2 Output
Pin 3 GND
2). All dimensions are in millimeters;
2
1.70
2.10
End
2.70
3.10
1.00
1.30
0.70
0.90
0.35
0.50
0.10
0.25
0.20
Min
0.00
0.10
Ordering Information
Part No.
Pb-free
Temperature Code
Package Code
Packing
SS1050ESOT
YES
-40°C to 85°C
SOT-23
7-in. reel, 3000 pieces/reel
SS1050EUA
YES
-40°C to 85°C
TO-92
Bulk, 1000 pieces/bag
SS1050KSOT
YES
-40°C to 125°C
SOT-23
7-in. reel, 3000 pieces/reel
SS1050KUA
YES
-40°C to 125°C
TO-92
Bulk, 1000 pieces/bag
SS1050LSOT
YES
-40°C to 150°C
SOT-23
7-in. reel, 3000 pieces/reel
SS1050LUA
YES
-40°C to 150°C
TO-92
Bulk, 1000 pieces/bag
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V3.10 Nov 1, 2013