SS1072

SS1072
Unipolar Hall-Effect Digital Switch
Packages
Features and Benefits
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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
Solid-state reliability
Resistant to physical stress
Small Size SOT23 3L or SIP 3L
Activate with small, commercially available
Permanent magnets
OUT
Chopper
Automotive, Consumer and Industrial
Solid-state switch
Brushless DC motor commutation
Speed detection
Angular position detection
Linear position detection
Proximity detection
General Description
Hall
Plate
The SS1072 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
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) and 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
SS1072
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 to125
-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
SS1072
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
DC Operating Parameters VDD = 4.5V to 24V (unless otherwise specified)
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
160
110
200
170
Ta=25°C,Vdd=12V DC
-200
-170
180
140
40
-180
-140
40
G
G
G
G
G
G
-160
-110
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)
B < BRP
B > BOP
Test Conditions (SO)
B > BRP
B < BOP
OUT
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
SS1072
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
SS1072
Unipolar Hall-Effect Digital Switch
Package SO in SOT-23:
Notes
1). PINOUT:
Top
3
2.60
1.50 3.00
1.80
1
Pin 1 VDD
Pin 2 Output
Pin 3 GND
2). All dimensions are in millimeters;
2
1.70
2.10
Side Vie
End
2.70
3.10
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
SS1072ESOT
YES
-40°C to 85°C
SOT-23
7-in. reel, 3000 pieces/reel
SS1072EUA
YES
-40°C to 85°C
TO-92
Bulk, 1000 pieces/bag
SS1072KSOT
YES
-40°C to 125°C
SOT-23
7-in. reel, 3000 pieces/reel
SS1072KUA
YES
-40°C to 125°C
TO-92
Bulk, 1000 pieces/bag
SS1072LSOT
YES
-40°C to 150°C
SOT-23
7-in. reel, 3000 pieces/reel
SS1072LUA
YES
-40°C to 150°C
TO-92
Bulk, 1000 pieces/bag
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V3.10 Nov 1, 2013