SS443_1311

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Unipolar Hall-Effect Digital Switch 1 V3.10 Nov 1, 2013 Features and Benefits – 4.5V to 24V Operation – -40°C to 150°C 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, commer cially 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) 3 pin SIP (suffix UA) VDD OUT Voltage Regulatr Chopper Hall Plate GND Pin 1 – VDD Pin 1 – VDD Pin 2 – GND Pin 2 – OUT Pin 3 – OUT Pin 3 – GND Functional Block Diagram

Unipolar Hall-Effect Digital Switch 2 V3.10 Nov 1, 2013 General Description The SS443 is a unipolar Hall-effect sensor IC fabricated from bipolar technology. The device integrates a vol t- age regulator, reverse batter y protection diode, Hall sensor with dynamic offset cancellation system, te m- perature 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°C,and are more stable with both temperature and supply voltage changes. The unipolar switching chara c- teristic makes these devices ideal for use with a simple bar or rod magnet. Thanks to its wide operating voltage range and extend- ed 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. 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)

Unipolar Hall-Effect Digital Switch 3 V3.10 Nov 1, 2013 Pin Definitions and Descriptions Absolute Maximum Ratings Operating Temperature Range Symbol Value Units Temperature Suffix “E” TA -40 to 85 °C Temperature Suffix “K” TA -40 to 150 °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 ex- tended periods may affect device reliability 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 Parameter Symbol V alue 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 -65 to 170 °C

Unipolar Hall-Effect Digital Switch 4 V3.10 Nov 1, 2013 General Electrical Specifications DC Operating Parameters TA = 25°C, VDD= 4.5V to 24V (unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Units Supply Voltage VDD Operating 4.5 24 V Supply Current IDD B < BRP 4 5 7 mA Output Saturation Voltage VDSon IOUT = 20mA, B > BOP 0.3 0.5 V Output Leakage Current IOFF B < BRP VOUT = 24V 0.1 10 µA Output Rise Time tr RL = 820Ω, CL = 20pF 0.04 2.0 µs Output Fall Time tf RL =820Ω, CL = 20pF 0.18 2.0 µs Magnetic Specifications DC Operating Parameters VDD = 4.5V to 24V (unless otherwise specified) Package Parameter Symbol Test Conditions Min Typ Max Units UA Operating Point BOP Ta=25°C,Vdd=12V DC 150 170 190 G Release Point BRP 100 125 160 G Hysteresis BHYST 45 G SO Operating Point BOP Ta=25°C,Vdd=12V DC -190 -170 -150 G Release Point BRP -160 -125 -100 G Hysteresis BHYST 45 G 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) 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.

Unipolar Hall-Effect Digital Switch 5 V3.10 Nov 1, 2013

Application Information

Package Information

Package UA, 3-Pin SIP: 4.0 ± 0.01 1.27 2.13 1.87 1.00 1.20 45° ± 1° 1.52 ± 0.1 3° ± 1° 0.75 ± 0.05 3.0 ± 0.01 0.44± 0.01 0.05 ± 0.05 1.6.± 0.1 0.84(Nom) 3° ± 1° 6° ± 1° 6° ± 1° 3° ± 1° 14 .5 ± 1 Active Area Depth: Sensor Location 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 V DD Pin 2 GND Pin 3 Output 0.39± 0.01 0.38 ± 0.01 2.54

Unipolar Hall-Effect Digital Switch 6 V3.10 Nov 1, 2013 Package SO, 3-Pin SOT-23:

Ordering Information

Part No. Pb-free Temperature Code Package Code Packing SS443ESOT YES -40°C to 85°C SOT-23 7-in. reel, 3000 pieces/ reel SS443EUA YES -40°C to 85°C TO-92 Bulk, 1000 pieces/ bag SS443KSOT YES -40°C to 125°C SOT-23 7-in. reel, 3000 pieces/ reel SS443KUA YES -40°C to 125°C TO-92 Bulk, 1000 pieces/ bag SS443LSOT YES -40°C to 150°C SOT-23 7-in. reel, 3000 pieces/ reel SS443LUA YES -40°C to 150°C TO-92 Bulk, 1000 pieces/ bag 2.70 3.10 1.00 1.30 0.70 0.90 0.00 0.10 0.35 0.50 0.10 0.25 0.20 Min 2.60 3.00 1.50 1.80 1.70 2.10 2 1 Top Side Vie End Notes 1). PINOUT: Pin 1 VDD Pin 2 Output Pin 3 GND 2). All dimensions are in millimeters;