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| UNISONIC TECHNOLOGIES CO., LTD SK1812 BIPOLAR LATCH TYPE HALL - EFFECT FOR HIGH-TEMPERATURE OPERATION LINEAR INTEGRATED CIRCUIT DESCRIPTION SK1812 is a semiconductor integrated circuit utilizing the Hall effect. It has been so designed as to operate in the alternating magnetic field especially at low supply voltage and operation over extended temperature ranges to +125.This Hall IC is suitable for application to various kinds of sensors, contactless switches, and the like. FEATURES * Wide supply voltage range of 2.5V to 20V * Wide temperature operation range of -20~+125 * Alternating magnetic field operation * TTL and MOS IC are directly drivable by the output * The life is semipermanent because it employs contactless parts * SIP-3 and SOT-23 package *Pb-free plating product number: SK1812L APPLICATIONS * Speed sensor * Position sensor * Rotation sensor * Contact-less sensor * Motor control ORDERING INFORMATION Order Number Normal Lead Free Plating SK1812-AE3-4-R SK1812L-AE3-4-R SK1812-G03-D-K SK1812L-G03-D-K Package SOT-23 SIP-3 Pin Assignment 1 2 3 O I G I G O Packing Tape Reel Bulk Note: Pin Assignment: I:VCC O:VOUT G:GND www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd 1 of 6 QW-R118-008,A SK1812 MARKING INFORMATION LINEAR INTEGRATED CIRCUIT SIP-3 1812 L: Lead Free Plating, Blank: Pb/Sn Date Code SOT-23 1812 L: Lead Free Plating, Blank: Pb/Sn BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R118-008,A SK1812 ABSOLUTE MAXIMUM RATINGS (Ta = 25) PARAMETER LINEAR INTEGRATED CIRCUIT SYMBOL VCC ICC IO RATINGS UNIT Supply Voltage 2.5~20 V Supply Current 10 mA Circuit Current 20 mA SIP-3 400 Power Dissipation PD mW SOT-23 200 Operating Temperature TOPR -20 ~ +125 Storage Temperature TSTG -55 ~ +150 Note Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (Ta=25, unless otherwise specified.) PARAMETER Low-Level Output Voltage Output Leakage Current Output Short Circuit Current Supply Current SYMBOL VOL ILEAK -Ios ICC TEST CONDITIONS VCC =16V, IOUT=12mA, B=30mT VCC =3.6V, IOUT=12mA, B=30mT VCC =16V,B=-30mT VCC =16V,VOUT=0V,B=-30mT VCC =16V VCC =3.6V MIN TYP MAX UNIT 0.7 V 0.7 V 1 10 A 0.8 mA 6 mA 5.5 mA MAGNETIC CHARACTERISTICS Operate Point BOP Ta = +25 5 mT Release Point BRP Ta = +25 -5 mT Hysteresis BHYS Ta = +25 10 mT NOTE: 1. BOP =operate point (output turns ON); BRP =release point (output turns OFF); BHYS =hysteresis(BOP - BRP). As used here, negative flux densities are defined as less than zero (algebraic convention). Typical values are at Ta = +25 and VCC = 12V. 2. 1mT=10 gauss UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R118-008,A SK1812 PACKAGE INFORMATION LINEAR INTEGRATED CIRCUIT Fig. 1 SENSOR LOCATIONS Fig.2 APPLYING DIRECTION OF MAGNETIC FLUX UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 6 QW-R118-008,A SK1812 TYPICAL APPLICATION CIRCUIT LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R118-008,A SK1812 TYPICAL CHARACTERISTICS Switch Points 30 Hysteresis IN Gauss 20 10 0 0 -10 -20 -30 Ambient Temperature IN 25 55 75 95 43 42 41 40 39 38 37 36 35 34 0 LINEAR INTEGRATED CIRCUIT Hysteresis Switch Point IN Gauss 25 55 Ambient Temperature IN 75 95 Output Saturation Voltage 235 Saturation Voltage IN mV 230 225 220 215 210 205 200 195 0 25 55 Anbient Temperature IN 75 95 Supply Current IN mA 3.70 3.60 3.50 3.40 3.30 3.20 3.10 3.00 2.90 2.80 2.70 0 25 Supply Current 55 Ambient Temperature IN 75 95 Vo(sat) - Io 45.0 40.0 35.0 Current ( mA ) 30.0 25.0 20.0 15.0 10.0 5.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Voltage ( V ) 5.5 12.5 19.0 25.0 30.0 Sink 35.0 Input Current ( mA ) 37.0 39.0 41.0 3.75 3.70 3.65 3.60 3.55 3.50 3.45 3.40 3.35 3.30 3 5 3.48 3.55 Vin - Icc 3.73 3.70 3.65 Icc 12 Voltage ( V ) 15 20 UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 6 QW-R118-008,A |
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