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july 2007 rev 3 1/11 11 ts7221 single bicmos rail-to-ra il micropower comparator features rail-to-rail inputs open drain output supply operation from 2.7v to 10v typical supply current: 6a @ 5v response time of 0.5s at 5v low input current esd protection: 2kv (hbm), 200v (mm) available in tiny sot23-5 package applications battery-powered systems notebooks and pdas pcmcia cards cellulars and mobile communication alarm and security systems replacement of amplifiers used in comparator configuration for better performance description the ts7221 is a micropower comparator featuring 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 2.7v, 5v and 10v operation over the industrial temperature range (-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 2/11 1 absolute maximum ratings table 1. absolute maximum ratings symbol parameter value unit esd human body model (hbm) 2000 v machine model (mm) 200 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 0.3v beyond the supply voltage. (v cc - ) -0.3 to (v cc + ) +0.3 v v out output voltage 12 v v cc supply voltage 12 v i in current at input pins (1) 5 ma i out current at output pin 30 ma t lead lead temperature (soldering 10 seconds, pb-free package) 260 c t stg storage temperature -65 to +150 c t j junction temperature 150 c p d power dissipation (2) sot23-5 2. t j = 150c, t amb = 25 o c with r th-ja = 250 o c/w for sot23-5 package. 500 mw 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 3/11 2 electrical characteristics table 3. electrical characteristics at v cc + =2.7v, t amb = 25c (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 dr ift 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 < 2.7v) 65 db psrr power supply rejection ratio (2.7 < v cc < 10v) 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 + =0.5v, in - =0v & out=10v) 0.1 500 na v ol low level output voltage, i sink = 5ma 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 = 1.35v, c l = 50pf, r l =10k ) overdrive = 10mv overdrive = 100mv 1.5 0.6 s t phl response time high to low (v ic = 1.35v, c l = 50pf, r l =10k ) overdrive = 10mv overdrive = 100mv 1.5 0.5 s t f fall time c l = 50pf, r l =5k , overdrive = 10mv 0.3 s t r rise time c l = 50pf, r l =5k , overdrive = 10mv 0.3 s 1. limits are 100% production tested at +25c. behavior at the 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 4/11 table 4. electrical characteristics for v cc + = 5v, t amb = 25c (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 dr ift 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 < 5v) 70 db psrr power supply rejection ratio (2.7 < v cc < 10v) 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 + =0.5v, in - =0v & out=10v) 0.1 500 na v ol low level output voltage, i sink = 5ma at 25c 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 = 2.5v, c l = 50pf, r l =10k ) overdrive = 10mv overdrive = 100mv 2 0.5 s t phl response time high to low (v ic = 2.5v, c l = 50pf, r l =10k ) overdrive = 10mv overdrive = 100mv 2 0.4 s t f fall time c l = 50pf, r l =5k , overdrive = 10mv 0.3 s t r rise time c l = 50pf, r l =5k , overdrive = 10mv 0.3 s 1. limits are 100% production tested at +25c. behavior at the 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 5/11 table 5. electrical characteristics for v cc + = 10v, t amb = 25c (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 < 10v) 75 db psrr power supply rejection ratio (2.7 < v cc < 10v) 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 + =0.5v, in - =0v & out=10v) 0.1 500 na v ol low level output voltage, i sink = 5ma 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 = 5v, c l = 50pf, r l =10k ) overdrive = 10mv overdrive = 100mv 3 0.5 s t phl response time high to low (v ic = 5v, c l = 50pf, r l =10k ) overdrive = 10mv overdrive = 100mv 4 0.4 s t f fall time c l = 50pf, r l =5k , overdrive = 10mv 0.3 s t r rise time c l = 50pf, r l =5k , overdrive = 10mv 0.3 s 1. limits are 100% production tested at +25c. behavior at the 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 6/11 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 7/11 figure 7. t plh vs v icm at v cc = 10v and 10mv overdrive figure 8. t plh vs v icm at v cc = 10v and 100mv 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 = 5v and 10mv overdrive figure 10. t plh vs v icm at v cc = 5v and 100mv 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 = 10v and 10mv overdrive figure 12. t phl vs v icm at v cc = 10v and 100mv 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 8/11 figure 13. t phl vs v icm at v cc =5v and 10mv overdrive figure 14. t phl vs v icm at v cc =5v and 100mv 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 9/11 3 package information in order to meet environmental requirements, stmicroelectronics offers these devices in ecopack ? packages. these packages have a lead-free second level interconnect. the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an stmicroelectronics trademark. ecopack specifications are available at: www.st.com . figure 15. sot23-5l package mechanical data ref. dimensions millimeters mils min. typ. max. min. typ. max. a 0.90 1.45 35.4 57.1 a1 0.00 0.15 0.00 5.9 a2 0.90 1.30 35.4 51.2 b 0.35 0.50 13.7 19.7 c 0.09 0.20 3.5 7.8 d 2.80 3.00 110.2 118.1 e 2.60 3.00 102.3 118.1 e1 1.50 1.75 59.0 68.8 e 0.95 37.4 e1 1.9 74.8 l 0.35 0.55 13.7 21.6
ordering information ts7221 10/11 4 ordering information 5 revision history table 6. order codes part number temperature range package packing marking ts7221ailt -40c, +85c sot23-5l tape & reel k518 ts7221bilt k519 ts7221aiylt (1) 1. qualified and characterized according to aec q100 and q003 or equiva lent, advanced screening according to aec q001 & q 002 or equivalent. sot23-5l (automotive grade) k522 ts7221biylt (1) k523 table 7. document revision history date revision changes 1-dec-2002 1 initial release 1-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 9 . 26-mar-2007 3 added automotive grade part numbers in section 4: ordering information on page 10 . 5-jul-2007 4 corrected automotive grade part numbers in table 6: order codes .
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