SS189 Unipolar Hall-Effect Digital Switch Packages Features and Benefits 3 pin SOT23 (suffix SO) – – – – – – – – – 3 pin SIP (suffix UA) 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 or SIP 3L Solid-state reliability Resistant to physical stress Activate with small, commercially available Permanent magnets Functional Block Diagram Application Examples – – – – – – – VDD Voltage Regulator OUT Chopper Automotive, Consumer and Industrial Solid-state switch Brushless DC motor commutation Speed detection Angular position detection Linear position detection Proximity detection Hall Plate General Description GND SIP Package Pin 1 – V DD Pin 2 – GND Pin 3 – OUT SOT Package Pin 1 – V DD Pin 2 – OUT Pin 3 – GND The SS189 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. 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. 1 V2.10 May 1, 2012 SS189 Unipolar Hall-Effect Digital Switch Glossary of Terms MilliTesla (mT), Gauss RoHS Operating Point (B OP ) Release Point (B RP ) 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 ) Magnetic flux density applied on the branded side of the package which turns the output driver OFF (V OUT = 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 Table 1: Pin definitions and descriptions Absolute Maximum Ratings Parameter Symbol Supply Voltage V DD Supply Current I DD Output Voltage V OUT Output Current I OUT Storage Temperature Range TS Table 2: Absolute maximum ratings Operating Temperature Range Temperature Suffix “E” Temperature Suffix “K” Temperature Suffix “L” Symbol TA TA TA Value 28 50 28 50 -65 to 170 Units V mA V mA °C Value -40 to 85 -40 to 125 -40 to 150 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. 2 V2.10 May 1, 2012 SS189 Unipolar Hall-Effect Digital Switch General Electrical Specifications DC Operating Parameters T A = 25℃, V DD = 3.5V to 24V (unless otherwise specified) Parameter Symbol Supply Voltage V DD Supply Current I DD Output Saturation Voltage V DSon Output Leakage Current I OFF Output Rise Time tr Output Fall Time tf Table 3: Electrical Specifications Test Conditions Min Operating B < B RP I OUT = 20mA, B > B OP B < B RP V OUT = 24V R L = 820Ω, C L = 20pF R L = 820Ω, C L = 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 V DD = 4.5V to 24V (unless otherwise specified) SS189 Parameter Symbol Operating Point Release Point Hysteresis B OP B RP B HYST Test Conditions Min Typ Max Units Ta=25℃,V DD =12V DC 100 50 120 70 50 150 120 G G G Table 4: Magnetic Specifications Application Information 3 V2.10 May 1, 2012 SS189 Unipolar Hall-Effect Digital Switch Package Information Package UA, 3-Pin SIP: 4 V2.10 May 1, 2012 SS189 Unipolar Hall-Effect Digital Switch Package LH, 3-Pin SOT-23: Ordering Information Part No. Pb-free Temperature Code Package Code Packing SS189ESOT YES -40°C to 85°C SOT-23 7-in. reel, 3000 pieces/reel SS189EUA YES -40°C to 85°C TO-92 Bulk, 1000 pieces/bag SS189KSOT YES -40°C to 125°C SOT-23 7-in. reel, 3000 pieces/reel SS189KUA YES -40°C to 125°C TO-92 Bulk, 1000 pieces/bag SS189LSOT YES -40°C to 150°C SOT-23 7-in. reel, 3000 pieces/reel SS189LUA YES -40°C to 150°C TO-92 Bulk, 1000 pieces/bag 5 V2.10 May 1, 2012