low power single voltage comparators ? . wide single supply voltage range or dual supplies +2v to +36v or 1v to 18v . very low supply current (0.2ma) independent of supply voltage (1 mw/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 o =4ma) . differential input voltage range equal to the supply voltage . ttl, dtl, ecl, mos, cmos compatible outputs description these devices consist of a low power voltage com- parator designed specifically to operate from a sin- gle supply over a wide range of voltages. operation from split power supplies is also possible. this comparator also has a unique characteristic in that the input common-mode voltage range includes ground even though operatedfrom a single power supply voltage. order codes part number temperature range package l TS391IL 40, +125 o c ? example : TS391IL 1 2 3 4 5 inve rting input non-inve rting input output v cc - v cc + pin connections (top view) ts391 november 1998 l sot23-5l (tiny package) 1/5
absolute maximum ratings symbol parameter ts391i unit v cc supply voltage 18 or 36 v v id differential input voltage 36 v v i input voltage 0.3 to +36 v output short-circuit to ground - note 1 infinite p tot power dissipation - note 2 500 mw t oper operating free-air temperaturerange 40 to +125 o c t stg storage temperature range 65 to +150 o c notes : 1. short-circuit from the output to v cc + can cause excessive heating and eventual destruction. the maximum output current is approximately 20ma, independent of the magnitude of v cc + . 2. t j =150 o c, t amb =25 o cwithr thja =250 o c/w for sot23-5 package. non-inverting input inverting input 3.5 m a100 m a 3.5 m a 100 m a cc v cc v cc v cc v o v schematic diagram ts391 2/5
electrical characteristics v cc + = +5v, v cc = 0v, t amb =25 o c (unless otherwise specified) symbol parameter min. typ. max. unit v io input offset voltage (note 2) t amb = +25 o c t min . t amb t max. 15 9 mv i ib input bias current (note 3) t amb = +25 o c t min . t amb t max. 25 250 400 na i io input offset current t amb = +25 o c t min . t amb t max. 550 150 na a vd large signal voltage gain v cc = 15v, r l =15k w ,v o = 1 to 11v 50 200 v/mv i cc supply current v cc = 5v, no load v cc = 30v, no load 0.2 0.5 0.5 1.25 ma v icm input common mode voltage range - (note 4) t amb = +25 o c t min . t amb t max. 0 0 v cc + -1.5 v cc + -2 v v id differential input voltage - (note 6) v cc + v i sink output sink current (v id = -1v, v o = 1.5v) 6 16 ma v ol low level output voltage (v id = -1v, i sink = 4ma) t amb =25 o c t min . t amb t max 250 400 700 mv i oh high level output current (v id = 1v, v cc =v o = 30v) t amb =25 o c t min . t amb t max 0.1 1 na m a t re response time (r l = 5.1k w to v cc + ) (note 5) 1.3 m s t rel large signal response time (v i =ttl,v ref = +1.4 v, r l = 5.1k w to v cc + ) 300 ns notes : 2. at output swit ch point, v o 1.4v, r s =0 w with v cc + from 5v to 30v and over the full input common-mode range (0v to v cc + 1.5v). 3. the direction of the input current is out of the ic due to the pnp input stage. this current is essentially constant, independent of the state of the output, so no loading charge exists on the reference or input lines. 4. the input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3v. the upper end of the common-mode voltage range is v cc + 1.5v, but either or both inputs can go to +30v without damage. 5. the response time specified is for a 100mv input step with 5mv overdrive. for larger overdrive signals 300ns can be obtained. 6. positive excursions of input voltage may exceed the power supply level. as long as the other voltage remains within the common-mode range the comparator 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). ts391 3/5
supply current (ma) 0.5 0.4 0.3 0.2 0.1 0 10 20 30 40 s up p ly voltage (v) t amb =+70 c t amb = +125 c t=+25 c t amb =0 c t amb =-55 c r = supply current versus supply voltage input current (na) 20 10 20 30 40 supply voltage (v) t amb = +70 c t amb = +125 c t amb = -55 c 40 60 80 0 t amb =0 c t amb = +25 c v=0v i r=10 w i 9 input current versus supply voltage t amb = -55 c t amb = +125 c t amb = +25 c out of saturation 10 1 10 -3 10 -2 10 -1 10 0 saturation voltage(v) 10 -2 10 -1 10 0 10 1 10 2 output sink current (ma) output saturation voltage versus output current 5v 5.1k w e o e i 6 5 4 3 2 1 0 0 -50 -100 input voltage(mv) output voltage(v) 0 0.5 1 1.5 2 time ( m s) input overdrive : 5mv 20mv 100mv t amb = +25 c response time for various input overdrives - negative transition 5v 5. 1 k w e o e i 6 5 4 3 2 1 0 100 50 input voltage(mv) output voltage (v) 0 0.5 1 1.5 2 time ( m s) input overdrive : 100mv 20mv 5mv t amb = +25 c 0 response time for various input overdrives - positive transition ts391 4/5
l c e1 a2 a a1 b e d package mechanical data 5 pins -tiny package (sot23) dim. millimeters inches min. max. min. max. a 0.90 1.45 0.034 0.057 a1 0 0.15 0.006 a2 0.90 1.30 0.034 0.051 b 0.35 0.50 0.013 0.020 c 0.09 0.20 0.003 0.008 d 2.80 3.00 0.110 0.118 e 2.60 3.00 0.102 0.118 e1 1.50 1.75 0.059 0.069 l 0.10 0.60 0.003 0.024 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publication are subject to change without notice. this publ ication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life suppo rt devices or systems without express written approval of stmicroelectronics. ? the st logo is a trademark of stmicroelectronics ? 1998 stmicroelectronics printed in italy all rights reserved stmicroelectronics group of companies australia - brazil - canada - china - france - germany - italy - japan - korea - malaysia - malta - mexico - morocco the netherlands - singapore - spain - sweden - switzerland - taiwan - thailand - united kingdom - u.s.a. ? http://www.st.com order code ts391 5/5
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