UNISONIC TECHNOLOGIES CO., LTD SK1901 LINEAR INTEGRATED CIRCUIT HALL-EFFECT SWITCH FOR HIGH-TEMPERATURE OPERATION 1 DESCRIPTION SIP-3 SK1901 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°С.This Hall IC is suitable for application to various kinds of sensors, contact-less switches, and the like. 3 2 FEATURES 1 SOT-23 (EIAJ SC-59) * Wide supply voltage range of 2.5V to 20V * Wide temperature operation range of -20°С~+125°С * TTL and MOS IC are directly drivable by the output * The life is semipermanent because it employs contact-less parts ORDERING INFORMATION Ordering Number Lead Free Halogen Free SK1901G-AE3-R SK1901L-G03-B SK1901G-G03-B SK1901L-G03-K SK1901G-G03-K Note: Pin Assignment: I: VCC O: VOUT G: GND Package SOT-23 SIP-3 SIP-3 Pin Assignment 1 2 3 O I G I G O I G O Packing Tape Reel Tape Box Bulk MARKING SIP-3 SOT-23 1901G www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 8 QW-R118-005.F SK1901 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM REGULATOR VCC Output GND Hall element Amplifier Schmidt trigger UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Output stage 2 of 8 QW-R118-005.F SK1901 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS(TA = 25°С, unless otherwise specified) PARAMETER Supply voltage Supply current Circuit current RATINGS UNIT 2.5V ~ 20V V 10 mA 20 mA SIP-3 400 mW Power dissipation PD SOT-23 200 mW Operating temperature TOPR -20 ~ +125 °С Storage temperature TSTG -55 ~ +150 °С 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 MAGNETIC CHARACTERISTICS (over operating supply voltage range.) PARAMETER Operate Point Release Point Hysteresis SYMBOL BOP BRP BHYS UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw CONDITIONS at TA=+25°С at TA=+25°С at TA=+25°С MIN TYP MAX UNIT 100 G 10 G 90 G 3 of 8 QW-R118-005.F SK1901 LINEAR INTEGRATED CIRCUIT PACKAGE INFORMATION S 1 N Marked face 2 1. Vcc 2. GND 3. Output 3 1 Marked face 3 1. Vcc 2. Output 3. GND 2 S N SIP-3 SOT-23 Vout Vout H H Bh Bh L Brp N 0 L Bop Brp S Magnetic flux density UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw S 0 Bop N Magnetic flux density 4 of 8 QW-R118-005.F SK1901 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 8 QW-R118-005.F SK1901 TYPICAL OPERATING CHARACTERISTICS Temperature vs. Magnetic field 60 55 50 40 39 39 38 65 65 63 62 61 60 39 40 41 42 22 23 24 24 Voltage vs. Magnetic field 70 63 41 63 Bop 40 Brp 30 20 22 21 17 23 BW 23 Magnetic field ( G ) Magnetic field ( G ) 70 10 60 50 40 60 60 45 43 20 61 40 39 37 35 Brp 22 23 26 BW 20 17 15 0 10 25 55 75 95 115 125 3 5 12 Temperature ( °С ) Bop 15 20 27 Voltage ( V ) Temperature vs. Icc Voltage vs. Icc 3.75 4.50 3.99 3.88 3.76 3.61 3.50 3.00 2.50 3.72 3.70 3.40 3.25 3.09 2.95 2.84 Icc 2.00 1.50 Current ( mA ) 4.00 Current ( mA ) 61 0 -20 3.65 3.55 3.46 3.45 0.50 3.35 Icc 3.51 3.50 3.40 0.00 3.67 3.63 3.60 3.60 1.00 3.30 -20 0 10 25 55 75 95 115 125 3 5 Temperature ( °С ) 12 15 20 Voltage vs. Sink 31 34 33 33 31 33 32 31 31 Sink 30 30 30 31 31 31 32 32 Sink (mA) 33 27 Voltage ( V ) Temperature vs. Sink 33 61 60 30 10 0 Sink (mA) LINEAR INTEGRATED CIRCUIT 31 31 31 30 30 Sink 30 30 30 29 30 28 30 -20 0 10 25 55 75 95 115 125 Temperature ( °С ) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 5 13 15 21 27 Voltage ( V ) 6 of 8 QW-R118-005.F SK1901 LINEAR INTEGRATED CIRCUIT TYPICAL OPERATING CHARACTERISTICS (Cont.) Switch Points Hysteresis 70 30 60 25 50 20 40 15 30 10 20 5 10 0 0 -20 0 10 25 55 75 95 115 125 -20 0 10 25 55 75 95 115 125 115 125 Ambient Temperature IN ( °С ) Ambient Temperature IN ( °С ) Output Sink Current Supply Current 34 4.50 4.00 33 3.50 32 3.00 2.50 31 2.00 30 1.50 1.00 29 0.50 28 0.00 -20 0 10 25 55 75 95 115 125 -20 Ambient Temperature IN ( °С ) 0 10 25 55 75 95 Ambient Temperature IN ( °С ) Output Sink Current VIN - ICC 31 3.75 31 3.70 31 3.65 3.60 31 3.55 30 3.50 30 3.45 30 3.40 30 3.35 30 3.30 3 5 13 15 21 27 Voltage ( V ) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 5 12 15 20 27 Voltage ( V ) 7 of 8 QW-R118-005.F SK1901 LINEAR INTEGRATED CIRCUIT 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 8 of 8 QW-R118-005.F