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Unipolar Hall Switch-Low Sensitivity 1 V3.10 Nov 1, 20 13 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 Application Examples – 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 OUT Voltage Regulator Chopper Hall Plate GND Pin 1 – VDD Pin 1 – VDD Pin 2 – GND Pin 2 – OUT Pin 3 – OUT Pin 3 – GND

Unipolar Hall Switch-Low Sensitivity 2 V3.10 Nov 1, 20 13 General Description The SS1102 is a unipolar Hall-effect sensor IC fab- ricated from CMOS technology. The device inte- grates a voltage regulator, Hall sensor with dy- namic offset cancellation system, small signal a m- plifier, 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 integra t- ed circuits with tighter magnetic specifications, d e- signed to operate continuous ly over extended te m- peratures to +150°C,and are more stable with both temperature and supply voltage changes. The unipolar switching characteristic makes these d e- vices ideal for use with a simple bar or rod ma g- net.Thanks to its wide operating voltage rang e and extended choice of temperature range, it is quite suitable for use in automotive, industrial and co n- sumer applications. The device is delivered in a Small Outline Transi s- tor (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 Switch-Low Sensitivity 3 V3.10 Nov 1, 20 13 Pins Definition and Description Absolute Maximum Ratings 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 Operating Temperature Range Symbol Value Units Temperature Suffix “E” TA -40 to 85 °C Temperature Suffix “K” TA -40 to 125 °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

Unipolar Hall Switch-Low Sensitivity 4 V3.10 Nov 1, 20 13 General Electrical Specifications DC Operating Parameters TA = 25°C, VDD= 3.5V to 24V (unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Un its Supply Voltage VDD Operating 3.5 24 V Supply Current IDD B < BRP 1.5 2.5 5 mA Output Saturation Voltage VDSon IOUT = 20mA, B > BOP 0.4 0.5 V Output Leakage Current 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 Parameter Symbol Test Conditions Min Typ Max Units UA Operating Point BOP Ta=25°C,Vdd=12V DC 60 80 100 G Release Point BRP 20 50 80 G Hysteresis BHYST 30 G SO Operating Point BOP Ta=25°C,Vdd=12V DC -100 -80 -60 G Release Point BRP -80 -50 -20 G Hysteresis BHYST 30 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.

Unipolar Hall Switch-Low Sensitivity 5 V3.10 Nov 1, 20 13

Application Information

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 = VCC 2/ 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 When a weak power supply is used or when the device is intended to be used in noisy environment, it is recom- mended that figure followed is used. The low-pass filter formed by R1 and C1 and the Zener diode Z1 bypass the disturbances or voltage spikes occur- ring on the device supply voltage VDD. The diode D1 provides additional reverse voltage protection. Both solutions provide the required reverse voltage protection. Automotive and Harsh, Noisy Environments Three-Wire Circuit ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products.

Unipolar Hall Switch-Low Sensitivity 6 V3.10 Nov 1, 20 13

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 Switch-Low Sensitivity 7 V3.10 Nov 1, 20 13 Package SO, 3-Pin SOT-23:

Ordering Information

Part No. Pb-free Temperature Code Package Code Packing SS1102ESOT YES -40°C to 85°C SOT-23 7-in. reel, 3000 pieces/ reel SS1102EUA YES -40°C to 85°C TO-92 Bulk, 1000 pieces/ bag SS1102KSOT YES -40°C to 125°C SOT-23 7-in. reel, 3000 pieces/ reel SS1102KUA YES -40°C to 125°C TO-92 Bulk, 1000 pieces/ bag SS11021LSOT YES -40°C to 150°C SOT-23 7-in. reel, 3000 pieces/ reel SS1102LUA 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;