UNISONIC TECHNOLOGIES CO., LTD UH8104 CMOS IC HALL EFFECT MICRO SWITCH IC DESCRIPTION The UH8104 is a low power, pole independent Hall-effect switch with a latched digital output driver. It can work in 2.5V 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). It is designed with open drain configuration and connecting to a pull up resistor from Output to VDD is necessary. FEATURES * Micro power 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 ORDERING INFORMATION Ordering Number UH8104G-AE3-R UH8104G-G03-B UH8104G-G03-K Note: Pin Assignment : O: VOUT I: VDD 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 SOT-23 www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd SIP-3 1 of 5 QW-R502.709.C UH8104 CMOS IC PIN CONFIGURATIONS PIN DESCRIPTION PIN NAME PIN TYPE PIN DESCRIPTION VOUT O Output Pin VDD I Power Supply GND G Ground Note: O: Output, I: Power Supply, G: Ground BLOCK DIAGRAM www.unisonic.com.tw Logic Control AMP Offset Cancelling UNISONIC TECHNOLOGIES CO., LTD 2 of 5 QW-R502.709.C UH8104 CMOS IC ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified.) PARAMETER SYMBOL RATINGS UNIT Magnetic Flux Density B Unlimited mT Supply Voltage VDD 7 V 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 CONDITIONS Operating MIN 2.5 TYP MAX 5.5 MIN TYP 20 MAX 40 1 10 2 8 125 125 UNIT V ELECTRICAL CHARACTERISTICS (TA=25°C, VDD=3V) PARAMETER Output Low Voltage Output Leakage Current Supply Current Awake Time Period Duty Cycle SYMBOL VDD SYMBOL VOL IOFF IDD CONDITIONS ISINK = 1mA VOUT = 5.5V, BRPN<B<BRPS Average Awake Sleep TAWAKE TPERIOD D.C. 5 1.2 2 75 75 0.1 UNIT mV uA uA mA uA uS mS % MAGNETIC CHARACTERISTICS ( TA=25°C, VDD=3V, 1mT=10Gauss ) PARAMETER Operation Points Release Points Hysteresis SYMBOL BOPS BOPN BRPS BRPN |BOPX–BRPX| UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN -60 10 TYP 40 -40 30 -30 10 MAX 60 UNIT Gauss -10 3 of 5 QW-R502.709.C UH8104 CMOS IC TYPICAL APPLICATION CIRCUIT 3 GND VDD 22 VOUT 1 Digital Output Pull up resistor (50K is recommended) 0.1uF 2.5~5.5V SOT-23 SIP-3 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 5 QW-R502.709.C UH8104 MAGNETIC FLUX OFF-state Turn on Output Voltage CMOS IC Turn off Output OFF-state Turn off ON-state ON-state BOPN Turn on 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-R502.709.C