unisonic technologies co., ltd sk1901 linear integrated circuit www.unisonic.com.tw 1 of 8 copyright ? 2012 unisonic technologies co., ltd qw-r118-005,d hall-effect switch for high-temperature operation ? description sk1901 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 s ensors, contact-less switches, and the like. ? features * wide supply voltage range of 2.5v to 20v * wide temperature op eration range of -20 ~+125 * ttl and mos ic are directly drivable by the output * the life is semipermanent because it employs contact-less parts ? ordering information ordering number package pin assignment packing lead free halogen free 1 2 3 SK1901L-AE3-R sk1901g-ae3-r sot-23 o i g tape reel sk1901l-g03-b sk1901g-g03-b sip-3 i g o tape box sk1901l-g03-k sk1901g-g03-k sip-3 i g o bulk note: pin assignment: i: v cc o: v out g: gnd ? marking information sot-23 l: lead free g: halogen free 1901
sk1901 linear integrated circuit unisonic technologies co., ltd 2 of 8 www.unisonic.com.tw qw-r118-005,d ? block diagram amplifier schmidt trigger output stage hall element v cc gnd output regulator
sk1901 linear integrated circuit unisonic technologies co., ltd 3 of 8 www.unisonic.com.tw qw-r118-005,d ? absolute maximum ratings (t a = 25 , unless otherwise specified) parameter symbol ratings unit supply voltage v cc 2.5v ~ 20v v supply current i cc 10 ma circuit current io 20 ma power dissipation sip-3 p d 400 mw sot-23 200 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. ? magnetic characteristics (over operating supply voltage range.) parameter symbol conditions min typ max unit operate point b op at t a =+25 100 g release point b rp at t a =+25 10 g hysteresis b hys at t a =+25 90 g
sk1901 linear integrated circuit unisonic technologies co., ltd 4 of 8 www.unisonic.com.tw qw-r118-005,d ? package information 13 s n marked face 1. vcc 2. gnd 3. output 2 sip-3 s n marked face 1. vcc 2. output 3. gnd sot-23 3 12 bh bop 0 brp h l vout magnetic flux density bh bop 0 brp h l vout magnetic flux density n n s s
sk1901 linear integrated circuit unisonic technologies co., ltd 5 of 8 www.unisonic.com.tw qw-r118-005,d ? typical application circuit
sk1901 linear integrated circuit unisonic technologies co., ltd 6 of 8 www.unisonic.com.tw qw-r118-005,d ? typical operating characteristics temperature vs. magnetic field 55 60 61 62 63 65 65 63 63 38 39 39 39 40 41 42 41 40 17 21 22 22 23 24 24 23 23 0 10 20 30 40 50 60 70 -20 0 10 25 55 75 95 115 125 temperature ( ) magnetic field ( g ) bop brp bw temperature vs. icc 3.99 3.88 3.76 3.61 3.40 3.25 3.09 2.95 2.84 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 -20 0 10 25 55 75 95 115 125 temperature ( ) current ( ma ) icc voltage vs. magnetic field 60 60 60 61 61 61 45 43 40 39 37 35 15 17 20 22 23 26 0 10 20 30 40 50 60 70 3 5 12 15 20 27 voltage ( v ) magnetic field ( g ) bop brp bw temperature vs. sink 33 33 33 33 32 32 31 30 30 28 29 30 31 32 33 34 -20 0 10 25 55 75 95 115 125 temperature ( ) sink (ma) sink voltage vs. icc 3.46 3.51 3.60 3.63 3.67 3.72 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 27 voltage ( v ) current ( ma ) icc voltage vs. sink 30 30 31 31 31 31 30 30 30 30 30 31 31 31 31 3 5 13 15 21 27 voltage ( v ) sink (ma) sink
sk1901 linear integrated circuit unisonic technologies co., ltd 7 of 8 www.unisonic.com.tw qw-r118-005,d ? typical operating characteristics (cont.) switch points 0 10 20 30 40 50 60 70 -20 0 10 25 55 75 95 115 125 ambient temperature in ( ) hysteresis 0 5 10 15 20 25 30 -20 0 10 25 55 75 95 115 125 ambient temperature in ( ) output sink current 28 29 30 31 32 33 34 -20 0 10 25 55 75 95 115 125 ambient temperature in ( ) supply current 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 -20 0 10 25 55 75 95 115 125 ambient temperature in ( ) v in -i cc 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 27 voltage ( v ) output sink current 30 30 30 30 30 31 31 31 31 3 5 13 15 21 27 voltage ( v )
sk1901 linear integrated circuit unisonic technologies co., ltd 8 of 8 www.unisonic.com.tw qw-r118-005,d 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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