UNISONIC TECHNOLOGIES CO., LTD SK1812 LINEAR INTEGRATED CIRCUIT BIPOLAR LATCH TYPE HALL - EFFECT FOR HIGH-TEMPERATURE OPERATION 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 Note: Pin Assignment: I:VCC O:VOUT Package SOT-23 SIP-3 Pin Assignment 1 2 3 O I G I G O Packing Tape Reel Bulk G:GND www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd 1 of 6 QW-R118-008,A SK1812 LINEAR INTEGRATED CIRCUIT MARKING INFORMATION 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 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta = 25℃) PARAMETER 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. SYMBOL VCC ICC IO ELECTRICAL CHARACTERISTICS (Ta=25℃, unless otherwise specified.) PARAMETER SYMBOL Low-Level Output Voltage VOL Output Leakage Current Output Short Circuit Current ILEAK -Ios Supply Current 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 μA 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 LINEAR INTEGRATED CIRCUIT PACKAGE INFORMATION 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 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R118-008,A SK1812 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS Switch Points Hysteresis 43 42 20 10 0 0 25 55 75 95 -10 Hysteresis IN Gauss Switch Point IN Gauss 30 41 40 39 38 37 36 35 -20 34 0 -30 25 55 235 3.70 230 3.60 3.50 225 220 215 210 205 200 75 95 3.40 3.30 3.20 3.10 3.00 2.90 2.80 2.70 195 0 25 55 75 95 0 25 Anbient Temperature IN ℃ 55 Ambient Temperature IN ℃ Vo(sat) - Io Vin - Icc 3.75 45.0 35.0 35.0 30.0 37.0 39.0 41.0 3.70 30.0 25.0 25.0 20.0 Sink 19.0 15.0 12.5 10.0 5.5 Input Current ( mA ) 40.0 Current ( mA ) 95 Supply Current Supply Current IN mA Saturation Voltage IN mV Output Saturation Voltage 5.0 75 Ambient Temperature IN ℃ Ambient Temperature IN ℃ 3.73 3.70 3.65 3.65 3.60 3.55 3.55 3.50 Icc 3.48 3.45 3.40 3.35 3.30 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Voltage ( V ) 3 5 12 15 20 Voltage ( V ) 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