SS1376

SS1376
Unipolar Hall Switch-Low Sensitivity
Features and Benefits
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Application Examples
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3.5V to 24V Operation
-40°C to 150°C Superior temperature operation
CMOS technology
Low current consumption
Chopper-stabilized amplifier stage
Open drain output
Low sensitivity
Small Size SOT23 3L or SIP 3L
Both RoHS compliant packages
Automotive, Consumer and Industrial
Solid-state switch
Brushless DC motor commutation
Speed detection
Angular position detection
Proximity detection
Current detector
3 pin SOT23 (suffix SO)
3 pin SIP (suffix UA)
Functional Block Diagram
VDD
Voltage
Regulator
OUT
Chopper
Hall
Plate
GND
SIP Package
Pin 1 – VDD
Pin 2 – GND
Pin 3 – OUT
SOT Package
Pin 1 – VDD
Pin 2 – OUT
Pin 3 – GND
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V3.10 Nov 1, 2013
SS1376
Unipolar Hall Switch-Low Sensitivity
General Description
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.
The SS1376 is a unipolar Hall-effect sensor IC
fabricated from CMOS technology. The device
integrates a voltage regulator, Hall sensor with
dynamic offset cancellation system, small signal
amplifier, Schmitt trigger and an open-drain output
driver. With suitable output pull up, they can be
used with bipolar or CMOS logic circuits.
These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications,
designed to operate continuously over extended
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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SS1376
Unipolar Hall Switch-Low Sensitivity
Pins Definition and Description
SOT Pin № SIP Pin №
Name
Type
Function
1
1
VDD
Supply
Supply Voltage pin
2
3
OUT
Output
Open Drain Output pin
3
2
GND
Ground
Ground pin
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
Operating Temperature Range
Symbol
-65 to 170
Value
°C
Units
Temperature Suffix “E”
TA
-40 to 85
°C
Temperature Suffix “L”
TA
-40 to 150
°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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SS1376
Unipolar Hall Switch-Low Sensitivity
General Electrical Specifications
DC Operating Parameters TA = 25°C, VDD= 3.5V to 24V (unless otherwise specified)
Parameter
Symbol Test Conditions
Min
Supply Voltage
VDD
Operating
3.5
Supply Current
IDD
B < BRP
1.5
Output Saturation Voltage
VDSon
Output Leakage Current
Typ
Max
Units
24
V
2.5
5
mA
IOUT = 20mA, B > BOP
0.4
0.5
V
IOFF
B < BRP VOUT = 24V
0.01
10
µA
Output Rise Time
tr
RL = 1kΩ, CL = 20pF
0.25
µs
Output Fall Time
tf
RL = 1kΩ, CL = 20pF
0.25
µs
Magnetic Specifications
DC Operating Parameters VDD = 3.5 to 24V (unless otherwise specified)
Package
UA
SO
Parameter
Symbol
Operating Point
BOP
Release Point
BRP
Hysteresis
BHYST
Operating Point
BOP
Release Point
BRP
Hysteresis
BHYST
Test Conditions
Ta=25°C,Vdd=12V DC
Min
Typ
Max
Units
160
220
G
110
200
G
40
Ta=25°C,Vdd=12V DC
G
-220
-160
G
-200
-110
G
40
G
Output Behavior versus Magnetic Pole
DC Operating Parameters TA = -40°C to 150°C, VDD = 3.5 to 24V (unless otherwise specified)
Test Conditions (UA)
Test Conditions (SO)
OUT
B < BRP
B > BRP
High
B > BOP
B < BOP
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
SS1376
Unipolar Hall Switch-Low Sensitivity
Application Information
It is strongly recommended that an external bypass capacitor be connected (in close proximity to the Hall sensor)
between the supply(VDD Pin) and ground(GND Pin) of the device to reduce both external noise and noise
generated by the chopper stabilization technique. As is shown in the following figure, a 0.1μF capacitor is
typical.
For reverse voltage protection, it is recommended to connect a resistor or a diode in series with the VDD pin.
When using a resistor, three points are important:
- the resistor has to limit the reverse current to 50mA maximum (VCC / R1 ≤ 50mA)
- the resulting device supply voltage VDD has to be higher than VDD min (VDD = VCC – R1*IDD)
- the resistor has to withstand the power dissipated in reverse voltage condition (PD = VCC2/R1)
When using a diode, a reverse current cannot flow and the voltage drop is almost constant (≈0.7V).
Therefore, a 100Ω/0.25W resistor for 5V application and a diode for higher supply voltage are recommended.
Typical Three-Wire Application Circuit
SS1376
When a weak power supply is used or when the device is intended to be used in noisy environment, it is
recommended that following figure is used.
Automotive and Severe Environment Protection Circuit
SS1376
The low-pass filter formed by R1 and C1 and the Zener diode Z1 bypass the disturbances or voltage spikes
occurring on the device supply voltage VDD. The diode D1 provides additional reverse voltage protection. Both
solutions provide the required reverse voltage protection.
ESD Precautions
Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).
Always observe Electro Static Discharge control procedures whenever handling semiconductor products.
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SS1376
Unipolar Hall Switch-Low Sensitivity
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
SS1376
Unipolar Hall Switch-Low Sensitivity
Package SO, 3-Pin SOT-23:
Notes
1). PINOUT:
Top
Pin 1 VDD
Pin 2 Output
Pin 3 GND
2). All dimensions are in millimeters;
3
2.60
1.50 3.00
1.80
1
2
1.70
2.10
Side Vie
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
SS1376ESOT
YES
-40°C to 85°C
SOT-23
7-in. reel, 3000 pieces/reel
SS1376EUA
YES
-40°C to 85°C
TO-92
Bulk, 1000 pieces/bag
SS1376KSOT
YES
-40°C to 125°C
SOT-23
7-in. reel, 3000 pieces/reel
SS1376KUA
YES
-40°C to 125°C
TO-92
Bulk, 1000 pieces/bag
SS1376LSOT
YES
-40°C to 150°C
SOT-23
7-in. reel, 3000 pieces/reel
SS1376LUA
YES
-40°C to 150°C
TO-92
Bulk, 1000 pieces/bag
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V3.10 Nov 1, 2013