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SS118
Unipolar Hall-Effect Digital Switch
Features and Benefits
– – – – – – – – – 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
Application Examples
Automotive, Consumer and Industrial Solid-state switch Brushless DC motor commutation Speed detection Linear position detection Angular position detection Proximity detection
3 pin SOT23 (suffix SO)
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Functional Block Diagram
VDD
Voltage Regulatr
OUT
Chopper
Hall Plate
GND
SOT Package Pin 1 – V DD Pin 2 – OUT Pin 3 – GND
1
V2.00 May 1, 2012
Datasheet pdf - http://www.DataSheet4U.co.kr/
SS118
Unipolar Hall-Effect Digital Switch
General Description
The S118 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. These Hall-effect switches are monolithic integrated 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.
Glossary of Terms
MilliTesla (mT), RoHS Operating Point (B OP ) Gauss 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 (V OUT = V DSon )
Release Point (B RP )
Magnetic flux density applied on the branded side of the package which turns the output driver OFF (V OUT = high)
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2
V2.00 May 1, 2012
Datasheet pdf - http://www.DataSheet4U.co.kr/
SS118
Unipolar Hall-Effect Digital Switch
Pin Definitions and Descriptions
SOT Pin № 1 2 3 Name VDD OUT GND Type Supply Output Ground Function Supply Voltage pin Open Drain Output pin Ground pin
Absolute Maximum Ratings
Parameter Supply Voltage Supply Current Output Voltage Output Current Storage Temperature Range Absolute maximum ratings Operating Temperature Range Temperature Suffix “E” Temperature Suffix “K” Temperature Suffix “L” Symbol TA TA TA Value -40 to 85 -40 to 125 -40 to 150 Units °C °C °C Symbol VDD IDD VOUT IOUT TS Value
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Units V mA V mA °C
28 50 28 50 -65 to 170
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum- rated conditions for extended periods may affect device reliability .
3
V2.00 May 1, 2012
Datasheet pdf - http://www.DataSheet4U.co.kr/
SS118
Unipolar Hall-Effect Digital Switch
General Electrical Specifications
DC Operating Parameters T A = 25℃, V DD = 4.5V to 24V (unless otherwise specified) Parameter Supply Voltage Supply Current Output Saturation Voltage Output Leakage Current Output Rise Time Output Fall Time Symbol VDD IDD VDSon IOFF tr tf Test Conditions Operating B < B RP IOUT = 20mA, B > B OP B < B RP VOUT = 24V RL = 820Ω, CL = 20pF RL =820Ω, CL = 20pF Min 4.5 4 5 0.3 0.1 0.04 0.18 Typ Max 24 7 0.5 10 2.0 2.0 Units V mA V µA µs µs
Magnetic Specifications
DC Operating Parameters VDD = 4.5V to 24V (unless otherwise specified) Parameter Operating Point Release Point Hysteresis Symbol B OP
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Test Conditions
Min 150
Typ 170 125 45
Max 190 160
Units G G G
B RP B HYS
Ta=25℃,Vdd=12V DC
100
Application Information
4
V2.00 May 1, 2012
Datasheet pdf - http://www.DataSheet4U.co.kr/
SS118
Unipolar Hall-Effect Digital Switch
Package LH, 3-Pin SOT-23:
www.DataSheet.net/
Ordering Information
Part No. SS118ESOT SS118KSOT SS118LSOT Pb-free YES YES YES Temperature Code -40°C to 85°C -40°C to 125°C -40°C to 150°C Package Code SOT-23 SOT-23 SOT-23 Packing 7-in. reel, 3000 pieces/reel 7-in. reel, 3000 pieces/reel 7-in. reel, 3000 pieces/reel
5
V2.00 May 1, 2012
Datasheet pdf - http://www.DataSheet4U.co.kr/
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