unisonic technologies co., ltd uh8103 preliminary bicmos ic www.unisonic.com.tw 1 of 4 copyright ? 2011 unisonic technologies co., ltd qw-r502-513.a hall effect micro switch ic ? 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 suffi cient flux will turn the output on; in the absence of a magnetic fi eld, the output is off. when a magnetic field enters the hall element and exceeds the operate point b ops (or less than b opn ) the output turns on (output is low). when the magnetic field is below the release point b rps , 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. ? 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 sot-23 1 3 2 ? ordering information ordering number pin assignment lead free halogen free package 1 2 3 packing uh8013l-ae3-r UH8013G-AE3-R sot-23 o i g tape reel note: o: output, i: v dd , g: gnd
uh8103 preliminary bicmos ic unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw ver.a ? block diagram ? typical circuit
uh8103 preliminary bicmos ic unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw ver.a ? absolute maximum rating (t a =25 , note ) parameter symbol ratings unit supply voltage v dd 7 v magnetic flux density b unlimited output current i out 10 ma package power dissipation p d 230 mw junction temperature t j 150 operation temperature t opr -40 ~ +85 storage temperature t stg -65 ~ +150 note absolute maximum ratings are those values be yond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? recommended operating conditions ( t a =25 ) parameter symbol condit ions min typ max unit supply voltage v dd operating 2.5 --- 5.5 v ? electrical characteristics (t a =25 , vdd=3v) uh8103 symbol characteristic conditions min typ max unit v dd supply voltage range operating 2.5 5.5 v average 5 10 ua awake 1.2 2 ma i dd supply current sleep 2 8 ua i off output leakage current v out = 3.5v, b rpn uh8103 preliminary bicmos ic unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw ver.a ? magnetic flux output voltage 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.
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