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  unisonic technologies co., ltd ts391/a/b/c linear integrated circuit www.unisonic.com.tw 1 of 6 copyright ? 2009 unisonic technologies co., ltd qw-r104-003.f low power single voltage comparator ? description the utc ts391/a/b/c consists of a low power voltage comparator designed specifically to operate from a single supply over a wide range of voltages. operat ion from split power supplies is also possible. this comparator also has a uniqu e characteristic in that the input common-mode voltage range includes ground even though operated from a single power supply voltage. ? features * wide single supply voltage range or dual supplies +2v~+34v or 1v~18v * very low supply current (0.2ma) independent of supply voltage (1mw /comparator at +5v) * low input bias current: 25na typ. * low input offset current: 5na typ. * low input offset voltage: 1mv typ * input common-mode voltage range includes ground. * low output saturation voltage: 250mv typ.(i out =4ma). * differential input voltage range equal to the supply voltage. *ttl, dtl, ecl, cmos compatible outputs. lead-free: ts391l/ts391al/ts391bl/ts391cl halogen-free: ts391g/ts391ag/ts391bg/ts391cg ? ordering information ordering number normal lead free halogen free package packing ts391-af5-r ts391l-af5-r ts391g-af5-r sot-25 tape reel ts391a-af5-r ts391al-af5-r ts391ag-af5-r sot-25 tape reel ts391b-af5-r ts391bl-af5-r ts391bg-af5-r sot-25 tape reel ts391c-af5-r TS391CL-AF5-R ts391cg-af5-r sot-25 tape reel ts391-al5-r ts391l-al5-r ts391g -al5-r sot-353 tape reel ts391a-al5-r ts391al-al5-r ts391ag-al5-r sot-353 tape reel ts391b-al5-r ts391bl-al5-r ts391bg-al5-r sot-353 tape reel ts391c-al5-r ts391cl-al5-r ts391cg-al5-r sot-353 tape reel
ts391/a/b/c linear integrated circuit unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw-r104-003.f ? marking package part no. sot-25 sot-353 ts391 4 5 3 2 1 s1 l: lead free g: halogen free ts391a 4 5 3 2 1 sa l: lead free g: halogen free ts391b 4 5 3 2 1 sb l: lead free g: halogen free ts391c 4 5 3 2 1 sc l: lead free g: halogen free ? pin connections (top view) ts391 ts391a output 1 5 2 3 4 in(-) in(+) vcc gnd - + ts391b ts391c output 1 5 2 3 4 in(+) in(-) vcc gnd
ts391/a/b/c linear integrated circuit unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw-r104-003.f ? block diagram 100 a 3.5 a 3.5 a 100 a in(+) output in(-) gnd gnd gnd v cc +
ts391/a/b/c linear integrated circuit unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw-r104-003.f ? absolute maximum ratings parameter symbol rating unit supply voltage v cc 18 or 36 v differential input voltage v i(diff) 36 v input voltage v in -0.3 ~ +36 v output short-circuit to ground (note 2) infinite power dissipation p d 500 mw junction temperature t j 150 c operating temperature t opr -40 ~ +125 c storage temperature t stg -65 ~ + 150 c notes: 1. 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. 2. short-circuit from the output to v cc can cause excessive heating and ev entual destruction. the maximum output current is approxim ately 20ma, independent of the magnitude of v cc . ? tharmal data (t j =150c, ta=25c) parameter symbol rating unit junction to ambient ja 250 c/w ? electrical characteristics (v cc =5.0v, all voltage referenced to gnd, ta=25c, unless otherwise specified) parameter symbol test conditions min typ max unit ta=+25c 1 5 mv input offset voltage (note 1) v i(off) t min ta t max 9 mv differential input voltage (note 4) v i(diff) v cc v large signal voltage gain gv v cc =15v, r l =15k, v out =1~ 11v 50 200 v/mv ta=+25 0 v cc -1.5 v input common mode voltage range (note 3) v i(cm) t min ta t max 0 v cc -2 v ta=+25c 250 400 mv low level output voltage v ol v i(diff) =1v, v cc = v out =30v t min ta t max 700 mv ta=+25 25 250 na input bias current (note 2) i i(bias) t min ta t max 400 na ta=+25 5 50 na input offset current i i(off) t min ta t max 150 na v cc =5v, no load 0.2 0.5 ma supply current i cc v cc =30v, no load 0.5 1.25 ma output sink current i sink v i(diff) =-1v, v out =1.5v 6 16 ma ta=+25c 0.1 na high level output current i oh v i(diff) =1v, v cc = v out =30v t min ta t ma 1 a response time tr r l =5.1k ? to v cc (note 5) 1.3 s large signal response time trel v in =ttl,v ref =+1.4v,r l =5.1k ? ~ v cc 300 ns notes: 1. at output switch point, vo=1.4v, r s =0 ? with v cc from 5v ~ 30v and over the full input common-mode range (0v ~ v cc 1.5v). 2. the direction of the input current is out of the ic due to the pnp input stage. this current is essentially constant, independent of t he state of the output, so no loading charge exists on the reference or input lines. 3. the input common-mode voltage of either input si gnal voltage should not be allowed to go negative by more than 0.3v.the upper end of t he common-mode voltage range is v cc + -1.5v,but either or both inputs can go to +30v without damage. 4. positive excursions of input voltage may exceed th e power supply level. as long as the other voltage remains within the common-mode range the compar ator will provide a proper output state. the low input voltage state must not be less than -0.3v (or 0.3v below the negative power supply, if used). 5. the response time specified is for a 100mv input st ep with 5mv overdrive. for larger overdrive signals 300ns can be obtained.
ts391/a/b/c linear integrated circuit unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw-r104-003.f ? typical characteristics supply current vs. supply voltage s u p p l y c u r r e n t ( m a ) 0.5 0.2 0 0 supply voltage (v) 10 20 30 40 time (s) input voltage (mv) output voltage (v) response time for vs. input overdrives - negative transition 6 5 4 3 2 1 0 0 0.5 1 1.5 2 input current vs. supply voltage i n p u t c u r r e n t ( n a ) 0 supply voltage (v) 80 60 40 20 10 20 30 40 response time for vs. input overdrives - positive transition 0.4 0.3 0.1 ta=-55 ta=+25 ta=+125 r= 0 -50 -100 ta=+25 20mv 100mv input overdrive:5mv +5v 5.1k ? ei eo - + ta=-55 ta=0 ta=+125 time (s) input voltage (mv) output voltage (v) 6 5 4 3 2 1 0 0 0.5 1 1.5 2 100 50 0 ta=+25 20mv 5mv input overdrive:100mv +5v 5.1k ? ei eo output saturation voltage vs. output current s a t u r a t i o n v o l t a g e ( v ) output sink current (ma) 10 1 10 0 10 -1 10 -2 10 -2 10 -2 10 -1 10 0 10 1 10 2 ta=+125 ta=+25 ta=+55 out of saturation - +
ts391/a/b/c linear integrated circuit unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw-r104-003.f 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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