unisonic technologies co., ltd sk1816 linear integrated circuit www.unisonic.com.tw 1 of 8 copyright ? 2012 unisonic technologies co., ltd qw-r118-004,h bipolar latch type hall effect for high-temperature operation ? description the utc sk1816 is a semiconductor integrated circuit utilizing the hall effect. it designed to operate in the alternating magnetic field especially at low supply volt age and operation over extended temperature ranges to +125 . this hall ic is suitable for application to various kinds of sensors, contact-less switches, such as speed sensor, position sensor, rotation sensor, contact-less sensor, and motor control. ? features * wide supply voltage range of 2.5v to 20v * wide temperature oper ation range of -30 ~+125 * alternating magnetic field operation * built-in protection diode * ttl and mos ic are directly drivable by the output * the life is semi permanent becau se it employs contact-less parts * sip-3 and sot-23 package are available. ? ordering information ordering number package pin assignment packing lead free halogen free 1 2 3 sk1816l-ae3-r sk1816g-ae3-r sot-23 o i g tape reel sk1816l-g03-b sk1816g-g03-b sip-3 i g o tape box sk1816l-g03-k SK1816G-G03-K sip-3 i g o bulk note: pin assignment: i: v cc o:v out g:gnd ? marking sot-23 l: lead free g: halogen free 1816
sk1816 linear integrated circuit unisonic technologies co., ltd 2 of 8 www.unisonic.com.tw qw-r118-004,h ? block diagram
sk1816 linear integrated circuit unisonic technologies co., ltd 3 of 8 www.unisonic.com.tw qw-r118-004,h ? absolute maximum ratings (t a =25 ) parameter symbol ratings unit supply voltage v cc 2.5~20 v supply current i cc 10 ma circuit current i o 20 ma power dissipation sip-3 p d 400 mw sot-23 200 mw operating temperature t opr -30 ~ +125 storage temperature t stg -40 ~ +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 oper ation is not implied. ? electrical characteristics (t a =25 , unless otherwise specified.) parameter symbol test conditions min typ max unit low-level output voltage v ol v cc = 16v, i out =12ma, b=30 mt 0.2 0.7 v v cc =3.6v, i out =12ma, b=30 mt 0.3 0.7 v output leakage current i leak v cc =16v, b=-30 mt 1 10 a supply current i cc v cc =16v 6 10 ma v cc =3.6v 5.5 10 ma output switching time t r v cc =16v, r l =10k ? , c l =10pf 5 s t f v cc =16v, r l =10k ? , c l =10pf 1 s magnetic characteristics operate point b op at t a =25 5 mt release point b rp at t a =25 -5 mt hysteresis b hys at t a =25 5.5 10 mt note: 1. b op =operate point (output turns on); b rp =release point (output turns off); b hys =hysteresis(b op ? b rp ). as used here, negative flux densit ies are defined as less than zero (algebraic convention). typical values are at t a =25 and v cc =12v. 2. 1mt=10 gauss
sk1816 linear integrated circuit unisonic technologies co., ltd 4 of 8 www.unisonic.com.tw qw-r118-004,h ? package information fig. 1 sensor locations 13 s n marked face 1. v cc 2. gnd 3. output 2 sip-3 s n marked face 1. v cc 2. output 3. gnd sot-23 3 12 b h b op 0 b rp h l v out magnetic flux density fig. 2 applying direction of magnetic flux
sk1816 linear integrated circuit unisonic technologies co., ltd 5 of 8 www.unisonic.com.tw qw-r118-004,h ? typical application circuit for dc fan 1 coil 1 coil 2 for dc fan 2 ? test circuit do 10k sk1816 10p v in
sk1816 linear integrated circuit unisonic technologies co., ltd 6 of 8 www.unisonic.com.tw qw-r118-004,h ? typical characteristics magnetic field (g) magnetic field (g) current (ma) current (ma) -20 0 10 25 55 75 95 115 125 26.5 sink (ma) temperature ( ) temperature vs sink 3 12 15 20 voltage (v) voltage vs sink 5 27 sink 27.0 27.5 28.0 28.5 29.0 29.5 30.0 30.5 sink 27.4 27.6 28.6 27.8 28.0 28.2 28.4 28.8 29.0 sink (ma)
sk1816 linear integrated circuit unisonic technologies co., ltd 7 of 8 www.unisonic.com.tw qw-r118-004,h ? typical characteristics(cont.) switch point in gaues hysteresis in gaues -20 0 10 25 55 75 95 115 125 sink current (ma) ambient temperature ( ) output sink current supply current 28.0 29.0 29.5 30.0 30.5 6 -20 0 10 25 55 75 95 115 125 ambient temperature ( ) 28.5 27.5 27.0 26.5 supply current (ma) 5 4 3 2 1 0
sk1816 linear integrated circuit unisonic technologies co., ltd 8 of 8 www.unisonic.com.tw qw-r118-004,h 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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