SS149_1311 [SECELECTRONICS]

Unipolar Hall Switch-Low Sensitivity;
SS149_1311
型号: SS149_1311
厂家: SEC Electronics Inc.    SEC Electronics Inc.
描述:

Unipolar Hall Switch-Low Sensitivity

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SS149  
Unipolar Hall Switch-Low Sensitivity  
Packages  
Features and Benefits  
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  
3 pin SOT23 (suffix SO)  
3 pin SIP (suffix UA)  
Functional Block Diagram  
Application Examples  
Automotive, Consumer and Industrial  
Solid-state switch  
VDD  
Brushless DC motor commutation  
Speed detection  
Voltage  
OUT  
Regulator  
Angular position detection  
Proximity detection  
Chopper  
Current detector  
Hall  
Plate  
General Description  
The SS149 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.  
GND  
SIP Package  
Pin 1 – VDD  
Pin 2 – GND  
Pin 3 – OUT  
SOT Package  
Pin 1 – VDD  
Pin 2 – 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) 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  
SS149  
Unipolar Hall Switch-Low Sensitivity  
Glossary of Terms  
MilliTesla (mT), Gauss  
RoHS  
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  
Operating Point (BOP)  
driver ON (VOUT = VDSon  
)
Magnetic flux density applied on the branded side of the package which turns the  
Release Point (BRP)  
output  
driver OFF (VOUT = high)  
Pin Definitions and Descriptions  
SOT Pin № SIP Pin №  
Name  
Type  
Function  
1
2
3
1
3
2
VDD  
Supply  
Output  
Ground  
Supply Voltage pin  
Open Drain Output pin  
Ground pin  
OUT  
GND  
Absolute Maximum Ratings  
Parameter  
Symbol  
Value  
Units  
V
Supply Voltage  
Supply Current  
Output Voltage  
Output Current  
VDD  
IDD  
28  
50  
28  
50  
mA  
V
VOUT  
IOUT  
TS  
mA  
°C  
Storage Temperature Range  
-65 to 170  
Operating Temperature Range Symbol  
Value  
Units  
Temperature Suffix “E”  
Temperature Suffix “K”  
Temperature Suffix “L”  
TA  
TA  
TA  
-40 to 85  
-40 to 125  
-40 to 150  
°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  
SS149  
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  
Typ  
Max Units  
Supply Voltage  
Supply Current  
VDD  
IDD  
Operating  
3.5  
1.5  
24  
5
V
mA  
V
B < BRP  
2.5  
0.4  
Output Saturation Voltage VDSon  
IOUT = 20mA, B > BOP  
B < BRP VOUT = 24V  
RL = 1kΩ, CL = 20pF  
RL = 1kΩ, CL = 20pF  
0.5  
10  
Output Leakage Current  
Output Rise Time  
IOFF  
tr  
0.01  
0.25  
0.25  
µA  
µs  
Output Fall Time  
tf  
µs  
Magnetic Specifications  
DC Operating Parameters VDD = 3.5V to 24V (unless otherwise specified)  
Package  
Parameter  
Symbol  
Test Conditions  
Min  
Typ  
Max Units  
Operating Point  
Release Point  
Hysteresis  
BOP  
90  
75  
120  
80  
150  
140  
G
G
G
G
G
G
BRP  
UA  
Ta=25°C,Vdd=12V DC  
BHYST  
BOP  
40  
Operating Point  
Release Point  
Hysteresis  
-150  
-140  
-120  
-80  
40  
-90  
-75  
BRP  
SO  
Ta=25°C,Vdd=12V DC  
BHYST  
Output Behavior versus Magnetic Pole  
DC Operating Parameters TA = -40°C to 150°C, VDD = 3.5V 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  
SS149  
Unipolar Hall Switch-Low Sensitivity  
Application Information  
Typical Three-Wire Application Circuit  
Automotive and Harsh, Noisy Environments Three-Wire Circuit  
Application Comments  
For proper operation, a 100nF bypass capacitor should be placed as close as possible to the device between the VDD  
and ground pin.  
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 100 /0.25W resistor for 5V application and a diode for higher supply voltage are recommended.  
When a weak power supply is used or when the device is intended to be used in noisy environment, it is recommended  
the second figure above is used.  
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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V3.10 Nov 1, 2013  
SS149  
Unipolar Hall Switch-Low Sensitivity  
Package Information  
Package UA, 3-Pin SIP:  
2.13  
1.87  
3° ± 1°  
1.00  
1.20  
45° ± 1°  
4.0 ± 0.01  
2
3
1
Sensor Location  
0.84(Nom)  
6° ± 1°  
Active Area Depth:  
3° ± 1°  
0.44± 0.01  
1
2
3
6° ± 1°  
3° ± 1°  
0.05 ± 0.05  
0.39± 0.01  
0.38 ± 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  
SS149  
Unipolar Hall Switch-Low Sensitivity  
Package SO, 3-Pin SOT-23:  
Notes  
Top  
1). PINOUT: Pin 1 VDD  
Pin 2 Output  
3
Pin 3 GND  
2). All dimensions are in millimeters;  
2.60  
3.00  
1.50  
1.80  
1
2
1.70  
2.10  
Side Vie  
End  
2.70  
3.10  
0.10  
0.25  
1.00  
1.30  
0.70  
0.90  
0.20  
Min  
0.00  
0.10  
0.35  
0.50  
Ordering Information  
Part No.  
Pb-free  
YES  
Temperature Code  
-40°C to 85°C  
Package Code  
SOT-23  
Packing  
SS149ESOT  
SS149EUA  
SS149KSOT  
SS149KUA  
7-in. reel, 3000 pieces/reel  
Bulk, 1000 pieces/bag  
7-in. reel, 3000 pieces/reel  
Bulk, 1000 pieces/bag  
7-in. reel, 3000 pieces/reel  
Bulk, 1000 pieces/bag  
YES  
-40°C to 85°C  
TO-92  
YES  
-40°C to 125°C  
-40°C to 125°C  
SOT-23  
YES  
TO-92  
SS149LSOT  
SS149LUA  
YES  
YES  
-40°C to 150°C  
-40°C to 150°C  
SOT-23  
TO-92  
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V3.10 Nov 1, 2013  

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