UNISONIC TECHNOLOGIES CO., LTD UH8100 CMOS IC LOW POWER HALL EFFECT SWITCH 3 DESCRIPTION UH8100 is a low-power integrated Hall switch designed to sense the applied magnetic flux density and give a digital output, which indicates the present condition of the magnitude sensed. It mainly designed for battery-powered system and hand-held equipment, such as cellular flip-phones and PDA’s, in which power consumption is one major concern. The typical power consumption of UH8100 is down to 15uW at 2.75V supply. For UH8100, the output will be high when no magnetic field is applied and be low when the applied magnetic flux density is stronger than the switching threshold. The difference between UH8100A and UH8100B is that UH8100A consumes less power than UH8100B in the Hall sensor operation. 1 2 SOT-23 (EIAJ SC-59) FEATURES * Micro power Operation * 2.5V to 5.5V Battery Operation * Offset Canceling Technology * Superior Temperature Stability * Extremely Low Switch-Point Drift * Insensitive to Physical Stress ORDERING INFORMATION Ordering Number Lead Free Halogen Free UH8100AL-AE3-R UH8100AG-AE3-R UH8100BL-AE3-R UH8100BG-AE3-R Note: O: VOUT, I: VDD, G: GND Package SOT-23 SOT-23 Pin Assignment 1 2 3 O I G O I G Packing Tape Reel Tape Reel MARKING UH8100A www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd UH8100B 1 of 6 QW-R502-413.C UH8100 PIN CONFIGURATIONS PIN DESCRIPTION CMOS IC PIN NAME PIN TYPE PIN DESCRIPTION VOUT O Digital Output VDD P Power Supply GND G Ground Note: O=Output, P=Power Supply, G=Ground UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R502-413.C UH8100 CMOS IC BLOCK DIAGRAM OUTPUT VDD L o g i c Co n t r o l A MP O f f s et C a n c e l l i n g Hall Plate GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R502-413.C UH8100 CMOS IC ABSOLUTE MAXIMUM RATING (TA=25℃) PARAMETER SYMBOL RATINGS UNIT Magnetic Flux Density B Unlimited mT Supply Voltage VDD 7 V Output Current IO 10 mA Package Power Dissipation PD 230 mW Junction Temperature TJ 150 ℃ Operation Temperature TOPR -40 ~ +85 ℃ Storage Temperature TSTG -65 ~ +150 ℃ 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℃) PARAMETER Supply Voltage SYMBOL VDD MIN 2.5 TYP MAX 5.5 UNIT V MIN TYP 0.1 <0.1 MAX 0.3 1 2.0 UNIT V uA mA 5 280 50 50 200 0.1 25 10 500 100 100 400 uA uA us ms us % % ELECTRICAL CHARACTERISTICS (TA=25℃) PARAMETER Output On Voltage Output Leakage Current Supply Current Supply Current SYMBOL VOUT IOFF IDD(EN) IDD(DIS) IDD(AVG) Awake Time TAWAKE Period TPERIOD Duty Cycle CONDITIONS Operating D.C. CONDITIONS VDD=3V, IOUT=1mA VDD=3V, VOUT=5.5V, B<BRP VDD=3V, Chip enable VDD=3V, Chip disable UH8100A VDD=3V, average supply current UH8100B VDD=3V VDD=3V,UH8100A VDD=3V,UH8100B VDD=3V,UH8100A VDD=3V,UH8100B MAGNETIC CHARACTERISTICS ( TA=25℃,VDD=3V) PARAMETER Operation Points Release Points Hysteresis SYMBOL |BOP| |BRP| |BOP–BRP| UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 10 TYP 40 30 10 MAX 60 UNIT Gauss 4 of 6 QW-R502-413.C UH8100 CMOS IC TYPICAL APPLICATION CIRCUIT 3 GND VDD OUTPUT 2 1 Digital Output Pull up resistor (Reconmand 50K) 2.5~5.5V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R502-413.C UH8100 MAGNETIC FLUX Output OFF-state Output Voltage CMOS IC Turn off Turn on ON-state 0 BRP BOP B 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 6 of 6 QW-R502-413.C