UNISONIC TECHNOLOGIES CO., LTD UH8105 CMOS IC Hall Effect Micro Switch IC DESCRIPTION The UH8105 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 (or above BRPN), the output turns off (output is high). FEATURES *Micropower operation *2.5V to 5.0V 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 UH8105G-AE3-R UH8105G-G03-B UH8105G-G03-K Note: Pin Assignment : O: Output I: VDD G: GND Package SOT-23 SIP-3 SIP-3 1 O I I Pin Assignment 2 3 I G G O G O Packing Tape Reel Tape Box Bulk MARKING SOT-23 www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd SIP-3 1 of 5 QW-R502-874.E UH8105 CMOS IC PIN CONFIGURATIONS SOT-23 SIP-3 PIN DESCRIPTION PIN NAME TYPE DESCRIPTION Output O Output VDD P/I Power Supply Input GND P Ground Note: P: power supply, I: input, O: output BLOCK DIAGRAM www.unisonic.com.tw Logic Control AMP Offset Cancelling UNISONIC TECHNOLOGIES CO., LTD 2 of 5 QW-R502-874.E UH8105 CMOS IC ABSOLUTE MAXIMUM RATING (TA=25°C) PARAMETER Magnetic Flux Density Supply Voltage Output Current RATINGS UNIT Unlimited mT 5.5 V 1 mA SIP-3 400 mW Power Dissipation PD SOT-23 200 mW Maximum Junction Temp 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 Ambient Temperature SYMBOL B VDD IO SYMBOL VDD TA MIN 2.5 -40 TYP - MAX 5.5 85 UNIT V °C MIN 2.5 TYP MAX 5.5 10 2 8 1 40 UNIT V uA mA uA uA mV V uS mS % ELECTRICAL CHARACTERISTICS (TA=25°C, VDD=3V) PARAMETER Supply Voltage Range SYMBOL VDD Supply Current IDD Output Leakage Current Output Low Voltage Output High Voltage Wake up Time Period Duty cycle IOFF VOL VOH Conditions Operating CONDITIONS Operating Average Awake Sleep Vout = 5.5V, BRPN<B<BRPS ISINK = 1mA 5 1.2 2 20 VOUT-0.4V tAWAKE tPERIOD d.c. 60 60 0.1 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 15 -45 10 -40 TYP 30 -30 20 -20 10 MAX 45 -15 40 -10 UNIT Gauss 3 of 5 QW-R502-874.E UH8105 CMOS IC TYPICAL CIRCUIT SIP-3 3 GND VDD 22 0.1uF VOUT 1 Digital Output 2.5~5.5V SOT-23 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 5 QW-R502-874.E UH8105 MAGNETIC FLUX OFF-state Turn on Output Voltage CMOS IC Turn off Output OFF-state Turn off Turn on ON-state ON-state BOPN BRPN 0 BRPS BOPS B SOT-23 / SIP-3 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 5 of 5 QW-R502-874.E