unisonic technologies co., ltd SK1812 linear integrated circuit www.unisonic.com.tw 1 of 6 copyright ? 2005 unisonic technologies co., ltd qw-r118-008,a bipolar latch type hall - effect for high-temperature operation ? description SK1812 is a semiconductor integrated circuit utilizing the hall effect. it has been so designed as to operate in the alternating magnetic field especially at low supply voltage and operation over extended temperature ranges to +125 .this hall ic is suitable for application to various kinds of sens ors, contactless switches, and the like. ? features * wide supply voltage range of 2.5v to 20v * wide temperature operation range of -20 ~+125 * alternating magnetic field operation * ttl and mos ic are directly drivable by the output * the life is semipermanent because it employs contactless parts * sip-3 and sot-23 package ? applications * speed sensor * position sensor * rotation sensor * contact-less sensor * motor control *pb-free plating product number: SK1812l ? ordering information order number pin assignment normal lead free plating package 1 2 3 packing SK1812-ae3-4-r SK1812l-ae3-4-r sot-23 o i g tape reel SK1812-g03-d-k SK1812l-g03-d-k sip-3 i g o bulk note: pin assignment: i:v cc o:v out g:gnd
SK1812 linear integrated circuit unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw-r118-008,a ? marking information sip-3 sot-23 1812 1812 l: lead free plating, blank: pb/sn date code l: lead free plating, blank: pb/sn ? block diagram
SK1812 linear integrated circuit unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw-r118-008,a ? absolute maximum ratings (ta = 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 sip-3 400 power dissipation sot-23 p d 200 mw operating temperature t opr -20 ~ +125 storage temperature t stg -55 ~ +150 note absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only an d functional device operat ion is not implied. ? electrical characteristics (ta=25 , unless otherwise specified.) parameter symbol test conditions min typ max unit v cc =16v, i out =12ma, b=30mt 0.7 v low-level output voltage v ol v cc =3.6v, i out =12ma, b=30mt 0.7 v output leakage current i leak v cc =16v,b=-30mt 1 10 a output short circuit current -ios v cc =16v,v out =0v,b=-30mt 0.8 ma v cc =16v 6 ma supply current i cc v cc =3.6v 5.5 ma magnetic characteristics operate point b op ta = +25 5 mt release point b rp ta = +25 -5 mt hysteresis b hys ta = +25 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 densities are defi ned as less than zero (algebraic convention). typical values are at ta = +25 and v cc = 12v. 2. 1mt=10 gauss
SK1812 linear integrated circuit unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw-r118-008,a ? package information fig. 1 sensor locations fig.2 applying direction of magnetic flux
SK1812 linear integrated circuit unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw-r118-008,a ? typical application circuit
SK1812 linear integrated circuit unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw-r118-008,a ? typical characteristics switch points -30 -20 -10 0 10 20 30 0 25557595 ambient temperature in switch point in gauss hysteresis 34 35 36 37 38 39 40 41 42 43 0 25557595 ambient temperature in hysteresis in gauss output saturation voltage 195 200 205 210 215 220 225 230 235 0 25557595 anbient temperature in saturation voltage in mv vo(sat) - io 5.5 12.5 19.0 25.0 30.0 35.0 37.0 39.0 41.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 voltage ( v ) current ( ma ) sink vin - icc 3.48 3.55 3.65 3.70 3.73 3.30 3.35 3.40 3.45 3.50 3.55 3.60 3.65 3.70 3.75 3 5 12 15 20 voltage ( v ) input current ( ma ) icc supply current 2.70 2.80 2.90 3.00 3.10 3.20 3.30 3.40 3.50 3.60 3.70 0 25557595 ambient temperature in supply current in ma 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.
|
