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UNISONIC TECHNOLOGIES CO., LTD SK1816 LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 6 Copyright © 2018 Unisonic Technologies Co., Ltd QW-R118-004.L BIPOLAR LATCH TYPE HALL EFFECT FOR HIGH-TEMPERATURE OPERATION  DESCRIPTION The UTC SK1816 is a semiconductor integrated circuit utilizing the Hall effect. It designed to operate in the alternating magnetic field especially at low supply volt age and operation over extended temperature ranges to +125°С. This Hall IC is suitable for application to various kinds of sensors, contact-less switches, such as Speed sensor, Position sensor, Rotation sensor, Contact-less sensor, and Motor control.  FEATURES * Wide Supply Voltage Range of 2.5V to 20V * Wide Temperature Operation Range of -30°С ~+125°С * Alternating Magnetic Field Operation * Built-in Protection Diode * TTL and MOS IC are Directly Drivable by the Output * The life is Semi Permanent because it Employs Contact-Less Parts SOT-23 (EIAJ SC-59) SIP-3  ORDERING INFORMATION Ordering Number Pin Assignment Lead Free Halogen Free Package 1 2 3 Packing SK1816L-AE3-R SK1816G-AE3-R SOT-23 I O G Tape Reel SK1816L-G03-B SK1816G-G03-B SIP-3 I G O Tape Box SK1816L-G03-K SK1816G-G03-K SIP-3 I G O Bulk Note: Pin Assignment: I: V CC O:V OUT G:GND  MARKING SIP-3 SOT-23

1816 L: Lead Free

G: Halogen Free

SK1816 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 2 of 6 www.unisonic.com.tw QW-R118-004.L  BLOCK DIAGRAM

SK1816 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 3 of 6 www.unisonic.com.tw QW-R118-004.L  ABSOLUTE MAXIMUM RATINGS (TA=25°С, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage V CC 2.5~20 V Supply Current I CC 10 mA Circuit Current I O 20 mA SIP-3 400 mW Power Dissipation SOT-23 PD 200 mW Operating Temperature T OPR -30 ~ +125 ° С Storage Temperature T STG -40 ~ +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.  ELECTRICAL CHARACTERISTICS (TA=25°С, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Leakage Current I LEAK V CC =16V, B=-30 mT 1 10 μA VCC =16V 6 10 mASupply Current I CC VCC =3.6V 5.5 10 mA TR V CC =16V, RL=10KΩ, CL=10pF 5 μSOutput Switching Time TF V CC =16V, RL=10KΩ, CL=10pF 1 μS MAGNETIC CHARACTERISTICS Operate Point B OP At T A=25°С 5 mT Release Point B RP At T A=25°С -5 mT Hysteresis B HYS At T A=25°С 5.5 10 mT Notes: 1. BOP=operate point (output turns ON); BRP =release point (output turns OFF); BHYS =hysteresis(BOP – BRP). As used here, negative flux densit ies are defined as less than zero (algebraic convention). Typical values are at TA=25°С and VCC =12V. 2. 1mT=10 gauss.

SK1816 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 4 of 6 www.unisonic.com.tw QW-R118-004.L  PACKAGE INFORMATION Fig. 1 SENSOR LOCATIONS Fig. 2 APPLYING DIRECTION OF MAGNETIC FLUX

SK1816 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 5 of 6 www.unisonic.com.tw QW-R118-004.L  TYPICAL APPLICATION CIRCUIT FOR DC FAN 1 Coil 1 Coil 2 FOR DC FAN 2  TEST CIRCUIT DO 10KΩSK1816 10P VIN

SK1816 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 6 of 6 www.unisonic.com.tw QW-R118-004.L  TYPICAL CHARACTERISTICS Current (mA) Sink (mA) 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. UTC reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof.