UNISONIC TECHNOLOGIES CO., LTD UH8103 Preliminary BiCMOS IC HALL EFFECT MICRO SWITCH IC 3 DESCRIPTION The UH8103 is a low power, pole independent Hall-effect switch with a latched digital output driver. It can work in 2.5 volt supply. Either a north or south pole of sufficient flux will turn the output on; in the absence of a magnetic field, the output is off. When a magnetic field enters the hall element and exceeds the operate point BOPS(or less than BOPN) the output turns on (output is low). When the magnetic field is below the release point BRPS , the output turns off (output is high). It is designed with open drain configuration and connecting a pull up resistor from Output to VDD is necessary. 1 2 SOT-23 (EIAJ SC-59) FEATURES *Micropower Operation *2.5V to 5.5V Battery Operation *Offset Canceling Technology *Independent of North or South Pole Magnet *Superior Temperature Stability *Extremely Low Switch-Point Drift APPLICATIONS *Micro Switch *Handheld Wireless Application Wake Up Switch *Clamp Shell Type Application Switch *Magnet Switch in Low Duty Cycle Applications ORDERING INFORMATION Ordering Number Note: UH8013G-AE3-R Pin Assignment: O: Output I: VDD G: GND Package SOT-23 Pin Assignment 1 2 3 O I G Packing Tape Reel MARKING www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 4 QW-R502-513.b UH8103 BLOCK DIAGRAM TYPICAL CIRCUIT Preliminary BiCMOS IC GND 3 2 1 VDD Digital Output OUTPUT Pull up resistor (recommend 50KΩ) 0.1uF 2.5~5.5V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 4 QW-R502-513.b UH8103 Preliminary BiCMOS IC ABSOLUTE MAXIMUM RATING (TA=25°C) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VDD 7 V Magnetic Flux Density B Unlimited Output current IOUT 10 mA Package Power Dissipation PD 230 mW Junction Temperature TJ 150 °C Operation Temperature TOPR -40 ~ +85 °C Storage Temperature TSTG -65 ~ +150 °C 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. RECOMMENDED OPERATING CONDITIONS (TA=25°C) PARAMETER Supply Voltage SYMBOL VDD MIN 2.5 TYP --- MAX 5.5 UNIT V MIN 2.5 TYP MAX 5.5 10 2 8 UNIT V μA mA μA 1 μA 40 mV μS mS % ELECTRICAL CHARACTERISTICS (TA=25°C, VDD=3V) PARAMETER Supply Voltage Range SYMBOL VDD Supply Current IDD Output Leakage Current IOFF Output Low Voltage Wake up Time Period Duty cycle VOL Conditions Operating Conditions Operating Average Awake Sleep VOUT = 3.5V, BRPN<B<BRPS ISINK = 1mA 5 1.2 2 20 180 60 0.3 tawake tperiod d.c. MAGNETIC CHARACTERISTICS ( TA=25°C, VDD=3V, 1mT=10Gauss ) PARAMETER Operation Points Release Points Hysteresis SYMBOL BOPS BOPN BRPS BRPN Bhys UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN -75 10 TYP 50 -50 35 -35 15 MAX 75 UNIT Gauss -10 3 of 4 QW-R502-513.b UH8103 BiCMOS IC MAGNETIC FLUX Output Voltage Preliminary 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 4 of 4 QW-R502-513.b