? semiconductor components industries, llc, 2005 april, 2005 ? rev. 5 1 publication order number: ncp803/d ncp803 very low supply current 3-pin microprocessor reset monitor the ncp803 is a cost?effective system supervisor circuit designed to monitor v cc in digital systems and provide a reset signal to the host processor when necessary. no external components are required. the reset output is driven active within 10 sec of v cc falling through the reset voltage threshold. reset is maintained active for a minimum of 140 msec after v cc rises above the reset threshold. the ncp803 has an open drain active?low reset output. the output of the ncp803 is guaranteed valid down to v cc = 1.0 v and is available in a sot?23 package. the ncp803 is optimized to reject fast transient glitches on the v cc line. low supply current of 1.0 a (v cc = 3.2 v) make this device suitable for battery powered applications. features ? precision v cc monitor for 2.5 v, 3.0 v, 3.3 v, and 5.0 v supplies ? precision monitoring voltages from 1.6 v to 4.9 v available in 100 mv steps ? 140 msec guaranteed minimum reset output duration ? reset output guaranteed to v cc = 1.0 v ? low 1.0 m a supply current ? v cc transient immunity ? small sot?23 package ? no external components ? wide operating temperature: ?40 c to 105 c ? pb?free packages are available typical applications ? computers ? embedded systems ? battery powered equipment ? critical m p power supply monitoring v cc v cc v cc reset reset ncp803 gnd gnd figure 1. typical application diagram m p 0 0 r pull?up c = 100 nf sot?23 (to?236) case 318 device package shipping 2 ordering information ncp803snxxxt1 sot?23 3000/tape & reel pin configuration 3 1 2 v cc gnd reset sot?23 note: sot?23 is equivalent to jedec (to?236) (top view) see general marking information in the device marking section on page 5 of this data sheet. device marking information marking diagram 3 2 12 1 3 note: the axxxo denotes a suffix for v cc voltage threshold options ? see page 5 for more details. http://onsemi.com ncp803snxxxt1g sot?23 (pb?free) 3000/tape & reel ncp803snxxxt3 sot?23 10000/tape & reel ncp803snxxxt3g sot?23 (pb?free) 10000/tape & reel 2for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specification brochure, brd8011/d. *the at3o suffix refers to a 13 inch reel. xxx = specific device code m = date code = pb?free package xxxm
ncp803 http://onsemi.com 2 pin description pin no. symbol description 1 gnd ground 2 reset reset output remains low while v cc is below the reset voltage threshold, and for 240 msec (typ.) after v cc rises above reset threshold. 3 v cc supply voltage: c = 100 nf is recommended as a bypass capacitor between v cc and gnd. absolute maximum ratings (note 1) rating symbol value unit supply voltage (v cc to gnd) v cc 6.0 v reset ?0.3 to (v cc + 0.3) v input current, v cc 20 ma output current, reset 20 ma dv/dt (v cc ) 100 v/ m sec thermal resistance, junction to air r ja 491 c/w operating temperature range t a ?40 to +105 c storage temperature range t stg ?65 to +150 c lead temperature (soldering, 10 seconds) t sol +260 c latch?up performance: negative i latch?up 150 ma maximum ratings are those values beyond which device damage can occur. maximum ratings applied to the device are individual str ess limit values (not normal operating conditions) and are not valid simultaneously. if these limits are exceeded, device functional operation i s not implied, damage may occur and reliability may be affected. 1. this device series contains esd protection and exceeds the following tests: human body model 4000 v per mil?std?883, method 3015. machine model method 400 v. 2. the maximum package power dissipation limit must not be exceeded. p d t j(max) t a r ja with t j(max) = 150 c
ncp803 http://onsemi.com 3 electrical characteristics t a = ?40 c to +105 c unless otherwise noted. typical values are at t a = +25 c. (note 3) characteristic symbol min typ max unit v cc range t a = 0 c to +70 c t a = ?40 c to +105 c 1.0 1.2 ? ? 5.5 5.5 v supply current v cc = 3.3 v t a = ?40 c to +85 c t a = 85 c to +105 c v cc = 5.5 v t a = ?40 c to +85 c t a = 85 c to +105 c i cc ? ? ? ? 0.5 ? 0.8 ? 1.2 2.0 1.8 2.5 m a reset threshold (note 4) ncp803sn463 t a = +25 c t a = ?40 c to +85 c t a = +85 c to +105 c ncp803sn438 t a = +25 c t a = ?40 c to +85 c t a = +85 c to +105 c ncp803sn308 t a = +25 c t a = ?40 c to +85 c t a = +85 c to +105 c ncp803sn293 t a = +25 c t a = ?40 c to +85 c t a = +85 c to +105 c ncp803sn263 t a = +25 c t a = ?40 c to +85 c t a = +85 c to +105 c ncp803sn232 t a = +25 c t a = ?40 c to +85 c t a = +85 c to +105 c ncp803sn160 t a = +25 c t a = ?40 c to +85 c t a = +85 c to +105 c v th 4.56 4.51 4.40 4.31 4.27 4.16 3.04 3.00 2.92 2.89 2.85 2.78 2.59 2.55 2.50 2.29 2.26 2.20 1.58 1.56 1.52 4.63 ? ? 4.38 ? ? 3.08 ? ? 2.93 ? ? 2.63 ? ? 2.32 ? ? 1.60 ? ? 4.70 4.75 4.88 4.45 4.49 4.60 3.11 3.15 3.23 2.96 3.00 3.08 2.66 2.70 2.76 2.35 2.38 2.45 1.62 1.64 1.68 v reset temperature coefficient ? 30 ? ppm/ c v cc to reset delay v cc = v th to (v th ? 100 mv) ? 10 ? m sec reset active timeout period 140 240 460 msec reset output voltage low v cc = v th ? 0.2 v 1.6 v v th 2.0 v, i sink = 0.5 ma 2.1 v v th 4.0 v, i sink = 1.2 ma 4.1 v v th 4.9 v, i sink = 3.2 ma v ol ? ? 0.3 v reset leakage current v cc v th , reset de?asserted i leak ? ? 1 m a 3. production testing done at t a = 25 c, over temperature limits guaranteed by design. 4. contact your on semiconductor sales representative for other threshold voltage options.
ncp803 http://onsemi.com 4 typical characteristics 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0.5 1.5 2.5 3.5 4.5 5.5 ?40 ?20 0 20 40 60 80 0.993 supply voltage (v) temperature ( c) 105 c figure 2. supply current vs. supply voltage 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 supply voltage (v) supply current ( a) supply current ( a) 1.6 1.8 85 c 25 c ?40 c 0 c 0.5 1.5 2.5 3.5 4.5 5.5 105 c 85 c 25 c ?40 c 0 c v th = 3.08 v 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0.5 1.5 2.5 3.5 4.5 5.5 supply voltage (v) 105 c 1.6 85 c 25 c ?40 c 0 c supply current ( a) v th = 4.90 v normalized v th voltage 0.994 0.995 0.996 0.997 0.998 0.999 1.000 1.001 100 120 v th = 3.08 v v th = 4.90 v ?40 ?20 0 20 40 60 80 200 temperature ( c) power?up reset timeout (ms) 210 220 230 240 250 260 270 280 100 120 v th = 1.60 v v th = 3.08 v v th = 4.90 v v th = 1.60 v v th = 1.60 v ?40 ?20 0 20 40 60 80 0 temperature ( c) power?down reset timeout ( s) 50 100 150 200 250 300 350 100 v th = 1.60 v v th = 3.08 v v th = 4.90 v figure 3. supply current vs. supply voltage figure 4. supply current vs. supply voltage figure 5. normalized reset threshold voltage vs. temperature figure 6. power?up reset timeout vs. temperature figure 7. power?down reset timeout vs. temperature (overdrive = 20 mv)
ncp803 http://onsemi.com 5 taping form pin 1 user direction of feed component taping orientation for 3l sot?23 (jedec?236) devices standard reel component orientation (mark right side up) device marking sot?23 package carrier width (w) pitch (p) part per full reel reel size 8 mm 4 mm 3000 7 inches tape & reel specifications table sot?23 10000 13 inches 8 mm 4 mm marking and threshold information on semicond ctor part # v * marking (note 5) on semiconductor part # v th * marking (note 5) ncp803sn160t1 1.60 scqm ncp803sn160t1g 1.60 scqm ncp803sn232t1 2.32 sqrm ncp803sn232t1g 2.32 sqrm ncp803sn263t1 2.63 sqcm ncp803sn263t1g 2.63 sqcm ncp803sn293t1 2.93 sqdm ncp803sn293t1g 2.93 sqdm ncp803sn293t3 2.93 sqdm NCP803SN293T3G 2.93 sqdm ncp803sn308t1 3.08 sqem ncp803sn308t1g 3.08 sqem ncp803sn438t1 4.38 sqfm ncp803sn438t1g 4.38 sqfm ncp803sn463t1 4.63 sqgm ncp803sn463t1g 4.63 sqgm note: the ago suffix indicates pb?free package available. *contact your on semiconductor sales representative for other threshold voltage options. 5. m = monthly date code
ncp803 http://onsemi.com 6 package dimensions sot?23 (to?236) case 318?08 issue al d j k l a c b s h g v 3 1 2 dim a min max min max millimeters 0.1102 0.1197 2.80 3.04 inches b 0.0472 0.0551 1.20 1.40 c 0.0350 0.0440 0.89 1.11 d 0.0150 0.0200 0.37 0.50 g 0.0701 0.0807 1.78 2.04 h 0.0005 0.0040 0.013 0.100 j 0.0034 0.0070 0.085 0.177 k 0.0140 0.0285 0.35 0.69 l 0.0350 0.0401 0.89 1.02 s 0.0830 0.1039 2.10 2.64 v 0.0177 0.0236 0.45 0.60 style 8: pin 1. anode 2. no connection 3. cathode notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. maximum lead thickness includes lead finish thickness. minimum lead thickness is the minimum thickness of base material. 4. 318?01 thru ?07 and ?09 obsolete, new standard 318?08. mm inches scale 10:1 0.8 0.031 0.9 0.035 0.95 0.037 0.95 0.037 2.0 0.079 *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. soldering footprint* on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. atypicalo parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. publication ordering information n. american technical support : 800?282?9855 toll free usa/canada japan : on semiconductor, japan customer focus center 2?9?1 kamimeguro, meguro?ku, tokyo, japan 153?0051 phone : 81?3?5773?3850 ncp803/d literature fulfillment : literature distribution center for on semiconductor p.o. box 61312, phoenix, arizona 85082?1312 usa phone : 480?829?7710 or 800?344?3860 toll free usa/canada fax : 480?829?7709 or 800?344?3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : http://onsemi.com order literature : http://www.onsemi.com/litorder for additional information, please contact your local sales representative.
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