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march 2009 rev 5 1/13 13 ts7221 single bicmos rail-to-ra il micropower comparator features rail-to-rail inputs open drain output supply operation from 2.7 to 10 v typical supply current: 6 a at 5 v response time of 0.5 s at 5 v low input current esd protection: 2 kv (hbm), 200 v (mm) available in tiny sot23-5 package applications battery-powered systems notebooks and pdas pcmcia cards cellular and mobile communications alarms and security systems replacement of amplifiers used in comparator configurations for improved performance. description the ts7221 is a micropower comparator featuring a rail-to-rail input performance in a tiny sot23-5 package. this comparator is ideally suited to space and weight-critical applications. it is fully specified at 2.7-, 5- and 10-v operation over industrial temperature ranges (-40c to +85c). the ts7221 features an open-drain output stage. the speed-to-power ratio makes this device ultra- versatile for a wide range of applications. l sot23-5l ts7221 open drain output 5 4 out vcc- 1 2 in+ vcc+ 3 in- + - www.st.com
absolute maximum ratings ts7221 2/13 1 absolute maximum ratings table 1. absolute maximum ratings symbol parameter value unit v cc supply voltage 12 v v id differential input voltage (v cc - ) -0.3 to (v cc + ) +0.3 v v in input voltage (1) 1. the magnitude of input voltages must nev er exceed 0.3 v beyond the supply voltage. (v cc - ) -0.3 to (v cc + ) +0.3 v v out output voltage 12 v i in current at input pins (1) 5 ma i out current at output pin 30 ma r thja thermal resistance junction to ambient (2) sot23-5 2. short-circuits can c ause excessive heating. t hese values are typical. 250 c/w r thjc thermal resistance junction to case (2) sot23-5 81 c/w t lead lead temperature (soldering 10 seconds) 260 c t stg storage temperature -65 to +150 c t j junction temperature 150 c esd human body model (hbm) (3) 3. human body model: a 100 pf capacit or is charged to the specified voltage, then discharged through a 1.5 k resistor between two pins of the device. this is done for all couples of connected pin combinations while the other pins are floating. 2000 v machine model (mm) (4) 4. machine model: a 200 pf capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 ). this is done for all couples of connected pin combinations whil e the other pins are floating. 200 table 2. operating conditions symbol parameter value unit v cc supply voltage 2.7 to 10 v t amb ambient temperature -40 to +85 c v icm common mode input voltage range (v cc - ) -0.3 to (v cc + ) +0.3 v
ts7221 electrical characteristics 3/13 2 electrical characteristics table 3. electrical characteristics at v cc + =2.7v, t amb = 25 c (unless otherwise specified) (1) symbol parameter min. typ. max. unit v io input offset voltage (full common mode range) ? ts7221a at t min t amb t max ? ts7221b at t min t amb t max 7 10 15 18 mv v io input offset voltage drift with temperature 6 v/ o c i ib input bias current (2) at t min t amb t max 1 300 600 pa i io input offset current (2) at t min t amb t max 1 150 300 pa cmrr common-mode rejection ratio (0 < v icm < 2.7 v) 65 db psrr power supply rejection ratio (2.7 < v cc < 10 v) 80 db a vd voltage gain (3) 240 db v icm input common mode voltage range at t min t amb t max -0.3 0.0 3 2.7 v i oh high level output voltage (in + = 0.5 v, in - = 0 v and out = 10 v) 0.1 500 na v ol low level output voltage, i sink = 5 ma at t min t amb t max 0.2 0.35 0.45 v i cc supply current output low output high 6 8 12 14 a t plh response time low to high (v ic = 1.35 v, c l =50pf, r l =10k ) overdrive = 10 mv overdrive = 100 mv 1.5 0.6 s t phl response time high to low (v ic = 1.35 v, c l =50pf, r l =10k ) overdrive = 10 mv overdrive = 100 mv 1.5 0.5 s t f fall time c l = 50 pf, r l =5k , overdrive = 10 mv 0.3 s t r rise time c l = 50 pf, r l =5k , overdrive = 10 mv 0.3 s 1. limits are 100% production-tested at +25 c. behavior at temperature range limits is guaranteed through correlation and by design. 2. maximum values include unavoidable i naccuracies of industrial testing. 3. design evaluation.
electrical characteristics ts7221 4/13 table 4. electrical characteristics for v cc + = 5 v, t amb = 25 c (unless otherwise specified) (1) symbol parameter min. typ. max. unit v io input offset voltage (full common mode range) ? ts7221a at t min t amb t max ? ts7221b t min t amb t max 7 10 15 18 mv v io input offset voltage drift with temperature 6 v/ o c i ib input bias current (2) at t min t amb t max 1 300 600 pa i io input offset current (2) at t min t amb t max 1 150 300 pa cmrr common-mode rejection ratio (0 < v icm < 5 v) 70 db psrr power supply rejection ratio (2.7 < v cc < 10 v) 80 db a vd voltage gain (3) 240 db v icm input common mode voltage range at t min t amb t max -0.3 0.0 5.3 5.0 v i oh high level output voltage (in + = 0.5 v, in - = 0 v and out = 10 v) 0.1 500 na v ol low level output voltage, i sink = 5 ma at t min t amb t max 0.2 0.40 0.55 v i cc supply current output low output high 6 8 12 14 a t plh response time low to high (v ic = 2.5 v, c l =50pf, r l =10k ) overdrive = 10 mv overdrive = 100 mv 2 0.5 s t phl response time high to low (v ic = 2.5 v, c l = 50 pf, r l =10k ) overdrive = 10 mv overdrive = 100 mv 2 0.4 s t f fall time c l = 50 pf, r l =5k , overdrive = 10 mv 0.3 s t r rise time c l = 50 pf, r l =5k , overdrive = 10 mv 0.3 s 1. limits are 100% production-tested at +25 c. behavior at temperature range limits is guaranteed through correlation and by design. 2. maximum values include unavoidable i naccuracies of industrial testing. 3. design evaluation.
ts7221 electrical characteristics 5/13 table 5. electrical characteristics for v cc + =10v, t amb = 25 c (unless otherwise specified) (1) symbol parameter min. typ. max. unit v io input offset voltage (full common mode range) ? ts7221a at t min t amb t max ? ts7221b t min t amb t max 7 10 15 18 mv v io input offset voltage drift with temperature 6 v/ o c i ib input bias current (2) at t min t amb t max 1 300 600 pa i io input offset current (2) at t min t amb t max 1 150 300 pa cmrr common-mode rejection ratio (0 < v icm < 10 v) 75 db psrr power supply rejection ratio (2.7 < v cc < 10 v) 80 db a vd voltage gain (3) 240 db v icm input common mode voltage range at t min t amb t max -0.3 0.0 10.3 10.0 v i oh high level output voltage (in + = 0.5 v, in - = 0 v and out = 10 v) 0.1 500 na v ol low level output voltage, i sink = 5 ma at t min t amb t max 0.2 0.40 0.55 v i cc supply current output low output high 7 10 14 16 a t plh response time low to high (v ic = 5 v, c l = 50 pf, r l =10k ) overdrive = 10 mv overdrive = 100 mv 3 0.5 s t phl response time high to low (v ic = 5 v, c l = 50 pf, r l =10k ) overdrive = 10 mv overdrive = 100 mv 4 0.4 s t f fall time c l = 50 pf, r l =5k , overdrive = 10 mv 0.3 s t r rise time c l = 50 pf, r l =5k , overdrive = 10 mv 0.3 s 1. limits are 100% production-tested at +25 c. behavior at temperature range limits is guaranteed through correlation and by design. 2. maximum values include unavoidable i naccuracies of industrial testing. 3. design evaluation.
electrical characteristics ts7221 6/13 figure 1. supply current vs. supply voltage (output low) figure 2. supply current vs. supply voltage (output high) 0246810 0 2 4 6 8 10 output low no load t=+85c t=+25c t=-40c supply current (a) supply voltage (v) 0246810 0 2 4 6 8 10 12 t=-40c t=+25c t=+85c output high supply current (a) supply voltage (v) figure 3. output sinking current vs. output voltage at v cc =+2.7v, v cc =+5v figure 4. v io vs. v icm and temperature at v cc =2.7v 0246810 0.0 0.2 0.4 0.6 0.8 1.0 v cc = + 5v output low t amb =-40c t amb =+85c t amb =+25c output voltage (v) sink current (ma) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -4 -2 0 2 4 t = +85c t = +25c t = -40c v io input offset voltage (mv) v icm common mode voltage (v) figure 5. v io vs. v icm and temperature at v cc =5v figure 6. v io vs. v icm and temperature at v cc =10v 012345 -4 -2 0 2 4 t = +85c t = +25c t = -40c v io input offset voltage (mv) v icm common mode voltage (v) 0246810 -6 -4 -2 0 2 4 6 t = +85c t = +25c t = -40c v io input offset voltage (mv) v icm common mode voltage (v)
ts7221 electrical characteristics 7/13 figure 7. t plh vs v icm at v cc =10v and 10 mv overdrive figure 8. t plh vs v icm at v cc = 10 v and 100 mv overdrive 0510 0 1 2 3 4 t amb =+25c r l =10k & c l =50pf t plh (s) with 10mv overdrive common mode voltage (v) 0510 0 1 2 3 4 t amb =+25c r l =10k & c l =50pf t plh (s) with 100mv overdrive common mode voltage (v) figure 9. t plh vs v icm at v cc = 5 v and 10 mv overdrive figure 10. t plh vs v icm at v cc =5v and 100 mv overdrive 0.0 2.5 5.0 0 1 2 3 4 t amb =+25c r l =10k & c l =50pf t plh (s) with 10mv overdrive common mode voltage (v) 0.0 2.5 5.0 0 1 2 3 4 t amb =+25c r l =10k & c l =50pf t plh (s) with 100mv overdrive common mode voltage (v) figure 11. t phl vs v icm at v cc = 10 v and 10 mv overdrive figure 12. t phl vs v icm at v cc = 10 v and 100 mv overdrive 0510 0 1 2 3 4 5 t amb =+25c r l =10k & c l =50pf t phl (s) with 10mv overdrive common mode voltage (v) 0510 0 1 2 3 4 5 t amb =+25c r l =10k & c l =50pf t phl (s) with 100mv overdrive common mode voltage (v)
electrical characteristics ts7221 8/13 figure 13. t phl vs v icm at v cc =5v and 10 mv overdrive figure 14. t phl vs v icm at v cc =5v and 100 mv overdrive 0.0 2.5 5.0 0 1 2 3 t amb =+25c r l =10k & c l =50pf t phl (s) with 10mv overdrive common mode voltage (v) 0.0 2.5 5.0 0 1 2 3 t amb =+25c r l =10k & c l =50pf t phl (s) with 100mv overdrive common mode voltage (v)
ts7221 package information 9/13 3 package information in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com. ecopack ? is an st trademark.
package information ts7221 10/13 3.1 sot23-5 package information figure 15. sot23-5l package mechanical drawing table 6. sot23-5l package mechanical data ref. dimensions millimeters inches min. typ. max. min. typ. max. a 0.90 1.20 1.45 0.035 0.047 0.057 a1 0.15 0.006 a2 0.90 1.05 1.30 0.035 0.041 0.051 b 0.35 0.40 0.50 0.013 0.015 0.019 c 0.09 0.15 0.20 0.003 0.006 0.008 d 2.80 2.90 3.00 0.110 0.114 0.118 d1 1.90 0.075 e 0.95 0.037 e 2.60 2.80 3.00 0.102 0.110 0.118 f 1.50 1.60 1.75 0.059 0.063 0.069 l 0.10 0.35 0.60 0.004 0.013 0.023 k 0 degrees 10 degrees
ts7221 ordering information 11/13 4 ordering information table 7. order codes order code temperature range package packing marking ts7221ailt -40c, +85c sot23-5l tape & reel k518 ts7221bilt k519
revision history ts7221 12/13 5 revision history table 8. document revision history date revision changes 01-dec-2002 1 initial release 01-sep-2005 2 update of datasheet pr esentation and format. change of t lead temperature in table 1 on page 2 , to reflect change to pb-free package. corrections to v icm upper rail parameters in electrical characteristics tables. addition of pb-free information in section 3: package information on page 9 . correction to package mechanical data given in figure 15 on page 10 . 26-mar-2007 3 added automotive grade part numbers in section 4: ordering information on page 11 . 05-jul-2007 4 corrected automotive grade part numbers in table 7: order codes . 27-mar-2009 5 added notes for esd in table 1: absolute maximum ratings . added rthja and rthjc parameters in table 1: absolute maximum ratings . removed power dissipation parameter (p d ) in table 1: absolute maximum ratings . updated package information in section 3.1 . removed automotive grade part numbers in table 7: order codes .
ts7221 13/13 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2009 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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