UNISONIC TECHNOLOGIES CO., LTD SK1901 LINEAR INTEGRATED CIRCUIT HALL-EFFECT SWITCH FOR HIGH-TEMPERATURE OPERATION 1 SIP-3 DESCRIPTION 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℃.This Hall IC is suitable for application to various kinds of sensors, contact-less switches, and the like. 3 FEATURES 2 * Wide supply voltage range of 2.5V to 20V *Wide temperature operation range of -20℃~+125℃ *TTL and MOS IC are directly drivable by the output *The life is semipermanent because it employs contact-less parts *SIP-3 package 1 SOT-23 *Pb-free plating product number: SK1901L ORDERING INFORMATION Order Number Normal Lead Free Plating SK1901-AE3-4-R SK1901L-AE3-4-R SK1901-G03-D-K SK1901L-G03-D-K Note: Pin Assignment: I:VCC O:VOUT SK1901L-AE3-4-R Package SOT-23 SIP-3 Pin Assignment 1 2 3 O I G I G O Packing Tape Reel Bulk G:GND (1)Packing Type (2)Pin Assignment (3)Package Type (4)Lead Plating www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd (1) K: Bulk, R: Tape Reel (2) refer to Pin Assignment (3) AE3: SOT-23, G03: SIP-3 (4) L: Lead Free Plating, Blank: Pb/Sn 1 of 8 QW-R118-005,A SK1901 LINEAR INTEGRATED CIRCUIT MARKING INFORMATION SIP-3 1901 L: Lead Free Plating, Blank: Pb/Sn Date Code SOT-23 1901 L: Lead Free Plating, Blank: Pb/Sn 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,A SK1901 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL VCC ICC Io RATINGS UNIT Supply voltage 2.5V ~ 20V V Supply current 10 mA Circuit current 20 mA SIP-3 400 mW Power dissipation PD SOT-23 200 mW Operating ambient temperature TOPR -20 ~ +125 ℃ Storage temperature TSTG -55 ~ +150 ℃ Note 1. 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. 2. The device is guaranteed to meet performance specification within 0℃~+70℃ operating temperature range and assured by design from -20℃~+125℃. MAGNETIC CHARACTERISTICS (over operating supply voltage range.) PARAMETER Operate Point Release Point Hysteresis SYMBOL CONDITIONS at Ta=+25℃ BOP at Ta=+25℃ BRP BHYS at Ta=+25℃ UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP MAX UNIT 100 G 10 G 90 G 3 of 8 QW-R118-005,A SK1901 LINEAR INTEGRATED CIRCUIT PACKAGE INFORMATION SIP-3 SOT-23 4.1 mm 0.73 mm 0.385 mm 0.83 mm 1.58 mm 3.0 mm 0.83 mm 0.89 mm 0.89 mm S 1 1.00 mm 2 N Marked face 1. Vcc 2. GND 3. Output 3 1 3 Marked face 1. Vcc 2. Output 3. GND 2 S N SOT-23 SIP-3 Vout Vout H H Bh Bh L Brp N L Bop 0 Magnetic flux density Brp S UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw S Bop 0 Magnetic flux density N 4 of 8 QW-R118-005,A SK1901 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT Vcc 5V Vcc SK1901 OUTPUT μP GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 8 QW-R118-005,A SK1901 LINEAR INTEGRATED CIRCUIT TYPICAL OPERATING CHARACTERISTICS Temperature vs . Magnetic field 60 55 50 40 38 70 60 61 62 63 65 65 63 63 39 39 39 40 41 42 41 40 22 23 24 24 Bop Brp 30 20 22 21 17 23 BW 23 Magnetic field ( G ) Magnetic field ( G ) 70 Voltage vs. Magnetic field 10 60 50 40 60 45 43 20 0 10 25 55 75 95 115 125 3 5 40 39 37 35 Brp 22 23 26 BW 12 Bop 15 20 27 Voltage ( V ) Temperature vs . Icc Voltage vs. Icc 4.50 3.75 3.50 3.72 3.70 3.40 3.00 3.25 3.09 2.95 2.84 2.50 Icc 2.00 1.50 Current ( mA ) 3.99 3.88 3.76 3.61 4.00 Current ( mA ) 61 20 17 15 Temperature ( C ) 3.65 3.67 3.63 3.60 3.60 3.55 3.46 3.45 3.40 0.50 3.35 Icc 3.51 3.50 1.00 0.00 3.30 -20 0 10 25 55 75 95 115 125 3 5 Temperature ( C ) 12 15 20 Voltage vs. Sink 34 31 33 33 32 31 31 Sink 30 30 30 31 31 31 32 32 31 31 31 33 Sink (mA) 33 27 Voltage ( V ) Temperature vs . Sink Sink (mA) 61 0 -20 33 61 60 30 10 0 60 31 30 Sink 30 30 30 30 29 30 28 30 -20 0 10 25 55 75 95 115 125 Temperature ( C ) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 5 13 15 21 27 Voltage ( V ) 6 of 8 QW-R118-005,A SK1901 LINEAR INTEGRATED CIRCUIT TYPICAL OPERATING CHARACTERISTICS (Cont.) Switch Points Hysteresis 30 60 Hysteresis IN Gauss Switch Point IN Gauss 70 50 40 30 20 25 20 15 10 5 10 0 0 -20 0 10 25 55 75 95 115 125 -20 0 10 Ambient Temperature IN℃ 25 95 115 125 115 125 Supply Current 34 4.50 Supply Current IN mA Sink Current IN mA 75 Ambient Temperature IN℃ Output Sink Current 33 32 31 30 29 4.00 3.50 3.00 2.50 2.00 1.50 1.00 0.50 28 0.00 -20 0 10 25 55 75 95 115 125 -20 0 10 Ambient Temperature IN℃ 3.70 Input Current ( mA ) 3.75 31 31 31 30 30 30 3.55 3.50 3.45 3.40 3.35 3.30 15 21 27 Voltage ( V ) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 95 3.60 30 13 75 3.65 30 5 55 Vin - Icc 31 3 25 Ambient Temperature IN℃ Output Sink Current Current ( mA ) 55 3 5 12 15 20 27 Voltage ( V ) 7 of 8 QW-R118-005,A 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,A