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voltage detector with output delay rn5vd series application manual no.ea-027-0006
voltage detector with output delay rn5vd series 1 outline the rn5vd series are voltage detector ics with output delay functions and high detector threshold accuracy and ultra-low supply current by cmos process, which can be operated at an extremely low volt- age and is used,for instance, for system reset. each of these ics consists of a voltage reference unit, a comparator, resistors for voltage detection, an output driver, a hysteresis circuit and an output delay generator. the detector threshold is fixed with high accuracy in the ic and requires no adjustment. the rn5vd series are operable by a lower voltage than that for the r 5vl series, and can be driven by a single battery. two output types, nch open drain type and cmos type, are available. since the package for these ics are sot-23-5(mini-mold)package, high density mounting of the ics on board is possible. ? output delay ...................................................... typ. 100ms with external capacitor : 0.15f ? ultra-low supply current ................................... typ. 1.0a (rn5vd15 : v dd =3.5v) ? broad operating voltage range ....................... 0.7v to 10.0v ? detector threshold ............................................ stepwise setting with a step of 0.1v in the range of 0.9v to 6.0v is ................................................................................ possible. (refer to selection guide) . ? high accuracy detector threshold ..................... 2.5% ? low temperature-drift coefficient of detector threshold ........... typ. 100ppm/?c ? two output types .............................................. nch open drain and cmos ? small package .................................................... sot-23-5(mini-mold) features applications ? cpu & logic circuit reset ? battery checker ? window comparator ? wave shaping circuit ? battery back-up circuit ? power failure detector rn5vd 2 block diagrams 2 3 vr e f out gnd v dd c d r d + 1 5 2 3 vr e f out gnd v dd c d r d + 1 5 ? nch open drain output (rn5vd a) ? cmos output (rn5vd c) rn5vd C ? part number --- - abc d selection guide the detector threshold, the output type, the packing type, and the taping type of rn5vd series can be desig- nating at the user's request by specifying the part number as follows : for example, the product with detector threshold 3.5v, output type nch open drain and taping type tr, is designated by part number rn5vd35aa-tr. code a setting detector threshold (Cv det ) : stepwise setting with a step of 0.1v in the range of 0.9v to 6.0v is possible. b designation of output type a: nch open drain c: cmos c designation of packing type a: taping c: antistatic bag for samples d designation of taping type: ex. sot-23-5: tr, tl (refer to taping specification) tr is prescribed as a standard. contents rn5vd 3 } } pin description pin no. symbol description 1 out output pin input and power source for device itself ground pin no connection pin for external capacitor (for setting output delay) 2 v dd 3 gnd 4 nc 5 c d rn5vd 4 pin configuration ? sot-23-5 12 3 54 (mark side) absolute maximum ratings symbol item rating unit v dd supply voltage 12 v out output voltage i out output current power dissipation cnos v ss C0.3 to v dd +0.3 nch 70 p d 150 v ss C0.3 to 12 v v ma mw operating temperature range topt C40 to +85 ?c storage temperature range tstg C55 to +125 ?c lead temperature (soldering) tsolder 260?c, 10s absolute maximum ratings are threshold limit values that must not be exceeded even for an instant under any conditions. moreover, such values for any two items must not be reached simultaneously. operation above these absolute maximum ratings may cause degradation or permanent damage to the device. these are stress ratings only and do not necessarily imply functional operation below these limits. absolute maximum ratings rn5vd 5 rn5vd 6 v dd =0.8v v dd =2.9v ? Cv det ? topt electrical characteristics ? rn5vd09a/c topt=25?c symbol item conditions min. typ. max. unit. Cv det v hys i ss detector threshold detector threshold hysteresis supply current 0.878 0.900 0.922 v 0.027 0.045 0.063 v 1.5 0.9 3.7 2.7 a v ddh maximum operating voltage 10 v v ddl minimum operating voltage ( note 1) topt=25?c C30?c topt 85?c 0.55 0.65 0.70 0.80 v i out output current nch pch v ds =0.05v, v dd =0.7v v ds =0.5v, v dd =0.85v v ds =C2.1v, v dd =4.5v 0.01 0.05 1.0 0.05 0.50 2.0 ma v tcd c d pin threshold voltage v dd =0.99v 0.297 0.495 0.693 v ma r d delay resistance 0.5 1.0 2.0 m detector threshold temperature coefficient C30?c topt 85?c 100 ppm/?c i cd c d pin sink current v ds =0.1v, v dd =0.7v v ds =0.5v, v dd =0.85v 2.0 10.0 30 100.0 a (note 1) minimum operating voltage means the value of input voltage when output voltage maintains 0.1v or less, provided that i n the case of nch open drain type products, the pull-up resistance is set at 470k , and the pull-up voltage is set at 5.0v. rn5vd 7 ? rn5vd18a/c topt=25?c symbol item conditions min. typ. max. unit. Cv det v hys i ss v ddh detector threshold detector threshold hysteresis supply current maximum operating voltage v dd =1.7v v dd =3.8v 1.755 1.800 1.845 v 0.054 0.090 0.126 v 2.5 1.0 5.0 3.0 a 10 v v ddl minimum operating voltage ( note 1) topt=25?c C30?c topt 85?c 0.55 0.65 0.70 0.80 v i out output current nch pch v ds =C2.1v, v dd =4.5v v ds =0.05v, v dd =0.7v v ds =0.5v, v dd =1.5v 0.01 1.0 0.05 2.0 1.0 2.0 ma ma v tcd c d pin threshold voltage v dd =1.98v 0.693 0.990 1.287 v i cd c d pin sink current v ds =0.1v, v dd =0.7v v ds =0.5v, v dd =1.5v 2.0 200.0 30 800.0 a r d delay resistance 0.5 1.0 2.0 m ? Cv det ? topt detector threshold temperature coefficient C30?c topt 85?c 100 ppm/?c (note 1) minimum operating voltage means the value of input voltage when output voltage maintains 0.1v or less, provided that i n the case of nch open drain type products, the pull-up resistance is set at 470k , and the pull-up voltage is set at 5.0v. rn5vd 8 ? rn5vd27a/c topt=25?c symbol item conditions min. typ. max. unit. Cv det v hys i ss v ddh detector threshold detector threshold hysteresis supply current maximum operating voltage v dd =2.6v v dd =4.7v 2.633 2.700 2.767 v 0.081 0.135 0.189 v 3.5 1.1 7.0 3.3 a 10 v v ddl minimum operating voltage ( note 1) topt=25?c C30?c topt 85?c 0.55 0.65 0.70 0.80 v i out output current nch pch v ds =C2.1v, v dd =4.5v v ds =0.05v, v dd =0.7v v ds =0.5v, v dd =1.5v 0.01 1.0 0.05 2.0 1.0 2.0 ma ma v tcd c d pin threshold voltage v dd =2.97v 1.188 1.485 1.782 v i cd c d pin sink current v ds =0.1v, v dd =0.7v v ds =0.5v, v dd =1.5v 2.0 200.0 30 800.0 a r d delay resistance 0.5 1.0 2.0 m ? Cv det ? topt detector threshold temperature coefficient C30?c topt 85?c 100 ppm/?c ( note 1) minimum operating voltage means the value of input voltage when output voltage maintains 0.1v or less, provided that in the case of nch open drain type products, the pull-up resistance is set at 470k , and the pull-up voltage is set at 5.0v. rn5vd 9 ? rn5vd36a/c topt=25?c symbol item conditions min. typ. max. unit. Cv det v hys detector threshold detector threshold hysteresis 3.510 3.600 3.690 v 0.108 0.180 0.252 v i ss supply current v dd =3.47v v dd =5.6v 4.5 1.2 9.0 3.6 a v ddh maximum operating voltage 10 v v ddl minimum operating voltage ( note 1) topt=25?c C30?c topt 85?c 0.55 0.65 0.70 0.80 v i out output current nch pch v ds =0.05v, v dd =0.7v v ds =0.5v, v dd =1.5v v ds =C2.1v, v dd =4.5v 0.01 1.0 2.0 1.0 2.0 0.05 ma ma v tcd c d pin threshold voltage v dd =3.96v 1.584 1.980 2.376 v i cd c d pin sink current v ds =0.1v, v dd =0.7v v ds =0.5v, v dd =1.5v 2.0 200.0 30 800.0 a r d delay resistance 0.5 1.0 2.0 m ? Cv det ? topt detector threshold temperature coefficient C30?c topt 85?c 100 ppm/?c (note 1) minimum operating voltage means the value of input voltage when output voltage maintains 0.1v or less, provided that i n the case of nch open drain type products, the pull-up resistance is set at 470k , and the pull-up voltage is set at 5.0v. rn5vd 10 ? rn5vd45a/c topt=25?c symbol item conditions min. typ. max. unit. Cv det v hys detector threshold detector threshold hysteresis 4.388 4.500 4.612 v 0.135 0.225 0.315 v i ss supply current v dd =4.34v v dd =6.5v 5.5 1.3 11.0 3.9 a v ddl minimum operating voltage ( note 1) topt=25?c C30?c topt 85?c 0.55 0.65 0.70 0.80 v i out output current v tcd c d pin threshold voltage nch v ds =0.05v, v dd =0.7v v ds =0.5v, v dd =1.5v v ds =C2.1v, v dd =8.0v pch 0.01 1.0 0.05 2.0 1.5 3.0 v dd =4.95v 1.980 2.475 2.970 v i cd c d pin sink current v ds =0.1v, v dd =0.7v v ds =0.5v, v dd =1.5v 2.0 200.0 30 800.0 a r d delay resistance 0.5 1.0 2.0 m ? Cv det ? topt detector threshold temperature coefficient C30?c topt 85?c 100 ppm/?c ma ma v ddh maximum operating voltage 10 v (note 1) minimum operating voltage means the value of input voltage when output voltage maintains 0.1v or less, provided that i n the case of nch open drain type products, the pull-up resistance is set at 470k , and the pull-up voltage is set at 5.0v. rn5vd 11 ? rn5vd54a/c topt=25?c symbol item conditions min. typ. max. unit. Cv det detector threshold 5.265 5.400 5.535 0.378 v v hys detector threshold hysteresis 0.162 0.270 v 12.0 4.2 i ss supply current v dd =5.2v v dd =7.4v 6.0 1.4 a 10 v ddh maximum operating voltage v 0.70 0.80 v ddl minimum operating voltage ( note 1) topt=25?c C30?c topt 85?c 0.55 0.65 v 0.05 2.0 3.564 v tcd c d pin threshold voltage v dd =5.94v 2.376 2.970 v 2.0 r d delay resistance 0.5 1.0 m ? Cv det ? topt detector threshold temperature coefficient C30?c topt 85?c 100 ppm/?c i cd c d pin sink current v ds =0.1v, v dd =0.7v v ds =0.5v, v dd =1.5v 2.0 200.0 30 800.0 a i out output current nch v ds =0.05v, v dd =0.7v v ds =0.5v, v dd =1.5v 0.01 1.0 ma ma 3.0 pch v ds =C2.1v, v dd =8.0v 1.5 (note 1) minimum operating voltage means the value of input voltage when output voltage maintains 0.1v or less, provided that i n the case of nch open drain type products, the pull-up resistance is set at 470k , and the pull-up voltage is set at 5.0v. rn5vd 12 part number. rn5vd09a/c rn5vd10a/c rn5vd11a/c rn5vd12a/c rn5vd13a/c rn5vd14a/c rn5vd15a/c rn5vd16a/c rn5vd17a/c rn5vd18a/c rn5vd19a/c rn5vd20a/c rn5vd21a/c rn5vd22a/c rn5vd23a/c rn5vd24a/c rn5vd25a/c rn5vd26a/c rn5vd27a/c rn5vd28a/c rn5vd29a/c rn5vd30a/c rn5vd31a/c rn5vd32a/c rn5vd33a/c rn5vd34a/c rn5vd35a/c rn5vd36a/c rn5vd37a/c rn5vd38a/c rn5vd39a/c detector threshold Cv det (v) min . typ. max. 0.878 0.900 0.922 0.027 0.045 0.063 0.975 1.000 1.025 0.030 0.050 0.070 1.073 1.100 1.127 0.033 0.055 0.077 1.170 1.200 1.230 0.036 0.060 0.084 1.268 1.300 1.332 0.039 0.065 0.091 1.365 1.400 1.435 0.042 0.070 0.098 1.463 1.500 1.537 0.045 0.075 0.105 1.560 1.600 1.640 0.048 0.080 0.112 1.658 1.700 1.742 0.051 0.085 0.119 1.755 1.800 1.845 0.054 0.090 0.126 1.853 1.900 1.947 0.057 0.095 0.133 1.950 2.000 2.050 0.060 0.100 0.140 2.048 2.100 2.152 0.063 0.105 0.147 2.145 2.200 2.255 0.066 0.110 0.154 2.243 2.300 2.357 0.069 0.115 0.161 2.340 2.400 2.460 0.072 0.120 0.168 2.438 2.500 2.562 0.075 0.125 0.175 2.535 2.600 2.665 0.078 0.130 0.182 2.633 2.700 2.767 0.081 0.135 0.189 2.730 2.800 2.870 0.084 0.140 0.196 2.828 2.900 2.972 0.087 0.145 0.203 2.925 3.000 3.075 0.090 0.150 0.210 3.023 3.100 3.177 0.093 0.155 0.217 3.120 3.200 3.280 0.096 0.160 0.224 3.218 3.300 3.382 0.099 0.165 0.231 3.315 3.400 3.485 0.102 0.170 0.238 3.413 3.500 3.587 0.105 0.175 0.245 3.510 3.600 3.690 0.108 0.180 0.252 3.608 3.700 3.792 0.111 0.185 0.259 3.705 3.800 3.895 0.114 0.190 0.266 3.803 3.900 3.997 0.117 0.195 0.273 v dd = (Cv det ) C 0.10v v dd = (Cv det ) C0.13v 1.5 1.8 3.7 4.5 2.0 5.0 2.5 5.0 3.0 6.0 3.5 7.0 4.0 8.0 4.5 9.0 v dd = ( Cv det ) + 2.0v 0.9 2.7 1.0 3.0 1.1 3.3 1.2 3.6 nch v ds = 0.05v v dd = 0.7v 0.01 0.05 nch v ds = 0.5v v dd = 0.85v 0.05 0.5 v dd = 1.0v 0.2 1.0 v dd = 1.5v 1.0 2.0 min . typ. max. condi- tions typ. max. condi- tions typ. max. condi- tions min. typ. conditions min. typ. v hys (v) iss 1 (a) iss 2 (a) i out 1 (ma) i out 2 (ma) hysteresis supply current 1 supply current 2 output current 1 output current 2 electrical characteristics by detector threshold ? rn5vd09a/c to rn5vd39a/c (note) refer to the previously defined minimum operating voltage. condition 1 : topt=25?c condition 2 : C30?c topt 85?c rn5vd 13 p ch v ds = C 2.1v v dd = 4.5v 1.0 2.0 (note1) condition1 0.55 condition2 0.65 (note1) condition1 0.70 condition2 0.80 v dd = ( Cv det ) 1.1v v ds = 0.1v v dd = 0.7v 2.0 30 v ds = 0.5v v dd = 0.85v v dd = 1.0v v dd = 1.5v 10 50 200 100 200 800 0.5 1.0 2.0 output current 3 i out 3 ( ma) condi- tions min. typ. typ. max. condi- tions v dd 0.3 v dd 0.35 v dd 0.4 v dd 0.5 v dd 0.5 v dd 0.5 v dd 0.7 v dd 0.65 v dd 0.6 min. typ. max. condi- tions min. typ. conditions min. typ. min. typ. max. v ddl (v) v tcd (v) i cd 1 (a) i cd 2 (a) r d (m ) minimum oper- ating voltage c d pin threshold voltage c d pin output current 1 c d pin output current 2 delay resistance C 30?c topt 85?c 100 condi- tions typ. ? Cv det ? topt (ppm/?c) detector threshold tempco. topt=25?c rn5vd 14 part number. rn5vd40a/c rn5vd41a/c rn5vd42a/c rn5vd43a/c rn5vd44a/c rn5vd45a/c rn5vd46a/c rn5vd47a/c rn5vd48a/c rn5vd49a/c rn5vd50a/c rn5vd51a/c rn5vd52a/c rn5vd53a/c rn5vd54a/c rn5vd55a/c rn5vd56a/c rn5vd57a/c rn5vd58a/c rn5vd59a/c rn5vd60a/c detector threshold Cv det (v) min. typ. max. min. typ. max. condi- tions typ. max. condi- tions typ. max. condi- tions min. typ. min. typ. 3.900 4.000 4.100 0.120 0.200 0.280 3.998 4.100 4.202 0.123 0.205 0.287 4.095 4.200 4.305 0.126 0.210 0.294 4.193 4.300 4.407 0.129 0.215 0.301 4.290 4.400 4.510 0.132 0.220 0.308 4.388 4.500 4.612 0.135 0.225 0.315 4.485 4.600 4.715 0.138 0.230 0.322 4.583 4.700 4.817 0.141 0.235 0.329 4.680 4.800 4.920 0.144 0.240 0.336 4.778 4.900 5.022 0.147 0.245 0.343 4.875 5.000 5.125 0.150 0.250 0.350 4.973 5.100 5.227 0.153 0.255 0.357 5.070 5.200 5.330 0.156 0.260 0.364 5.168 5.300 5.432 0.159 0.265 0.371 5.265 5.400 5.535 0.162 0.270 0.378 5.363 5.500 5.637 0.165 0.275 0.385 5.460 5.600 5.740 0.168 0.280 0.392 5.558 5.700 5.842 0.171 0.285 0.399 5.655 5.800 5.945 0.174 0.290 0.406 5.753 5.900 6.047 0.177 0.295 0.413 5.850 6.000 6.150 0.180 0.300 0.420 v dd = (Cv det ) C 0.16v v dd = (Cv det ) C 0.20v 5.0 10.0 5.5 11.0 6.0 12.0 6.5 13.0 v dd = (Cv det ) + 2.0v 1.3 3.9 1.4 4.2 n ch v ds = 0.05v v dd = 0.7v 0.01 0.05 n ch v ds = 0.5v v dd = 1.5v 1.0 2.0 conditions v hys (v) iss 1 (a) iss 2 (a) i out 1 (ma) i out 2 (ma) hysteresis supply current 1 supply current 2 output current 1 output current 2 ? rn5vd40a/c to rn5vd60a/c (note) refer to the previously defined minimum operating voltage. condition 1 : topt=25?c condition 2 : C30?c topt 85?c rn5vd 15 p ch v ds = C 2.1v v dd = 8.0v 1.5 3.0 (note1) condition1 0.55 condition2 0.65 (note1) condition1 0.70 condition2 0.80 v dd = (C v det ) 1.1v v ds = 0.1v v dd = 0.7v 2.0 30 v ds = 0.5v v dd = 1.5v 200 800 0.5 1.0 2.0 output current 3 i out 3 (ma) condi- tions min. typ. typ. max. condi- tions v dd 0.4 v dd 0.5 v dd 0.6v min. typ. max. condi- tions min. typ. conditions min. typ. condi- tions typ. max. v ddl (v) v tcd (v) i cd 1 (a) i out 1 (ma) i out 2 (ma) minimum oper- ating voltage c d pin threshold voltage c d pin output current 1 c d pin output current 2 delay resistance C30?c topt 85?c 100 condi- tions typ. detector threshold tempco. topt=25?c ? Cv det ? topt (ppm/?c) rn5vd 16 a b 1 2 3 4 5 detector threshold hysteresis released voltage +v det detected voltage ? det minimum operaing voltage delay time gnd gnd supply voltage (v dd ) output voltage (out) operation fig. 2 operation diagram fig. 1 block diagram step 1. output voltage is equal to pull-up voltage. step 2. when input voltage (v dd ) reaches the state of vref 3 v dd (rb+rc) / (ra+rb+rc) at point a (detected voltage Cv det ) , the output of comparator is reversed, so that output voltage becomes gnd. discharging is performed from c d pin connected to external capacitor. no delay time is generated. step 3. output voltage becomes indefinite when power source voltage(v dd ) is smaller than minimum operating voltage. when the output is pulled up, v dd is output. step 4. output voltage becomes equal to gnd. step 5. when input voltage (v dd ) reaches the state of vref v dd rb/ (ra+rb) at point b (released voltage +v det ) , the output of comparator is reversed, and the external capacitor is charged through c d pin, so that output voltage becomes equal to pulled-up voltage after a delay time t d (=0.69 10 6 c d ) . step step 1 step 2 step 3 step 4 step 5 comparator (C) pin input voltage i ii ii ii i comparator output lh indefinite hl tr. 1, 2 off on indefinite on off output tr. nch off on indefinite on off pch on off indefinite off on i. rb + rc ra + rb + rc v dd ii. rb ra + rb v dd gnd out c d v dd ra current source output capacitor r d rb rc tr.1 tr.2 vref + comparator schmitt trigger nch pch rn5vd 17 ? output delay operation when the supply voltage crosses the released voltage (+v det ) from a low value to a value higher than the released voltage (+v det ) , the c d pin voltage starts to increase (starts to charge the external capacitor). the output voltage is maintained at l level until the c d pin voltage reaches to v tcd (c d pin threshold voltage) after that the output voltage is reversed to h state. the time period from beginning of charging capacitor to output voltage reversing represents the output delay ( t d ) . supply voltage (v dd ) c d pin voltage output voltage (out) output delay time ( t d ) gnd c d pin threshold voltage (v tcd ) released voltage (+v det ) gnd delay time ( t d ) can be set accordance with the capacitance c d of external capacitor as below t d =0.69 10 6 c d (s) ? output delay time rn5vd 18 test circuits fig. 3 supply current test circuit fig. 4 detector threshold test circuit fig. 5 nch driver output current test circuit fig. 6 pch driver output current test circuit fig. 7 c d pin threshold voltage test circuit fig. 8 c d pin sink current test circuit fig. 9 output delay time test circuit v in i ss v dd gnd rn5vd series v in v dd +5v or v dd gnd out 470k w rn5vd series v in v dd gnd out rn5vd series v ds i out v in v dd gnd out rn5vd c series v dd+ v ds i out v in v dd c d v ds +5v or v dd gnd out out 470k w rn5vd series v in v dd c d v ds gnd rn5vd series i cd t phl t d +v det +2.0v 100% 50% gnd 0.7v gnd input voltage output voltage c d c d v dd +5v gnd out 470k w rn5vd series v in * ) at fig.4,7,9. cmos output type does not need a pull-up resistor. rn5vd 19 typical characteristics 1) supply current vs. input voltage 0246810 0 0.5 1.0 1.5 2.0 2.5 3.0 supply current iss(?) rn5vd09 input voltage v in (v) topt=80?c 25?c ?0?c 0 1 2 3 4 5 0246810 supply current iss(?) input voltage v in (v) rn5vd27 topt=80?c 25?c ?0?c 0 3 4 5 6 7 8 supply current iss(?) 0246810 input voltage v in (v) rn5vd45 topt=80?c 25?c ?0?c 2 1 2) detector threshold vs. temperature ?0 ?0 0 20 40 60 80 0.86 0.88 0.90 0.92 0.94 0.96 0.98 detector threshold v det ( v ) rn5vd09 temperature topt(?c) +v det ? det 2.60 2.65 2.70 2.75 2.80 2.85 2.90 detector threshold v det (v) rn5vd27 ?0 ?0 0 20 40 60 80 temperature topt(?c) ? det +v det rn5vd 20 3) output voltage vs. input voltage 0 0.2 0.4 0.6 0.8 1 0 0.2 0.4 0.6 0.8 1.0 output voltage v out (v) rn5vd09a input voltage v in (v) 25?c ?0?c topt = 80?c v dd pull-up 470k w 0 0.2 0.4 0.6 0.8 1.0 0 1 2 3 4 5 6 output voltage v out (v) rn5vd09a input voltage v in (v) topt = 80?c 25?c ?0?c 5v pull-up 470k w 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 output voltage v out (v) rn5vd27a input voltage v in (v) topt = ?0?c 25?c 80?c v dd pull-up 470k w 0 0.5 1.0 1.5 2.0 2.5 3.0 0 1 2 3 4 5 6 output voltage v out (v) rn5vd27a input voltage v in (v) 25?c topt = 30?c 80?c 5v pull-up 470k w ?0 ?0 0 20 40 60 80 4.4 4.5 4.6 4.7 4.8 4.9 detector threshold v det (v) rn5vd45 temperature topt(?c) +v det ? det rn5vd 21 012345 0 1 2 3 4 5 output voltage v out (v) rn5vd45a input voltage v in (v) topt = ?0?c 25?c 80?c v dd pull-up 470k w 0 1 2 3 4 6 5 output voltage v out (v) rn5vd45a 012345 input voltage v in (v) topt = 30?c 25?c 80?c 5v pull-up 470k w 4) nch driver output current vs. v ds 0 0.2 0.4 0.6 0.8 1.0 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 output currert i out (ma) rn5vd09 v ds (v) v dd= 0.85v 0.7v 0 5 10 15 20 25 30 35 40 output currert i out (ma) 01234 rn5vd45 v ds (v) 1.5v 2.0v 2.5v 3.0v 3.5v v dd =4.0v rn5vd27 0 0.5 1.0 1.5 2.0 2.5 v ds (v) 0 2 4 6 8 10 12 14 16 output currert i out (ma) v dd= 2.5v 2.0v 1.5v rn5vd 22 5) nch driver output current vs. input voltage 0 0.2 0.4 0.6 0.8 1.0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 output current i out (ma) rn5vd09 input voltage v in (v) v ds= 0.5v topt = 80?c 25?c ?0?c output current i out (ma) rn5vd45 v ds= 0.5v 012345 0 2 4 6 8 10 12 14 16 18 input voltage v in (v) topt = 30?c 25?c 80?c output current i out (ma) input voltage v in (v) 0 0.5 1.0 1.5 2.0 2.5 3.0 0 2 4 6 8 10 12 rn5vd27 v ds= 0.5v topt = ?0?c 25?c 80?c 6) pch driver output current vs. input voltage 0246810 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 output current i out (ma) rn5vd09c input voltage v in (v) ?.5v ?.0v ?.5v v ds = ?.1v 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 output current i out (ma) 0246810 rn5vd27c input voltage v in (v) v ds = ?.1v ?.5v ?.0v ?.5v rn5vd 23 0246810 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 output current i out (ma) rn5vd45c input voltage v in (v) ?.5v ?.5v v ds = 2.1v ?.0v 7) c d pin threshold voltage vs. temperature ?0 ?0 0 20 40 60 80 0.2 0.3 0.4 0.5 0.6 0.7 0.8 c d pin threshold voltage v tcd (v) rn5vd09 temperature topt(?c) v dd= 0.99v ?0 ?0 0 20 40 60 80 1.2 1.3 1.4 1.5 1.6 1.7 1.8 c d pin threshold voltage v tcd (v) rn5vd27 temperature topt(?c) v dd= 2.97v ?0 ?0 0 20 40 60 80 2.2 2.3 2.4 2.5 2.6 2.7 2.8 c d pin threshold voltage v tcd (v) rn5vd45 temperature topt(?c) v dd= 4.95v rn5vd 24 9) cd pin sink current vs. cd pin voltage 0 0.2 0.4 0.6 0.8 1.0 0 0.02 0.04 0.06 0.08 0.10 0.12 c d pin sink current i cd (ma) rn5vd09 c d pin voltage v cd (v) 0.7v v dd = 0.85v 0 0.5 1.0 1.5 2.0 2.5 0 1.5 1.0 0.5 2.0 2.5 3.0 3.5 4.0 c d pin sink current i cd (ma) rn5vd27 c d pin voltage v ds (v) 2.0v 1.5v v dd = 2.5v 8) cd pin sink current vs. input voltage 0 0.2 0.4 0.6 0.8 1.0 0 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 c d pin sink current i cd (ma) rn5vd09 input voltage v in (v) 25?c topt = 80?c ?0?c v ds= 0.5v 01 2345 0 1 2 3 4 5 c d pin sink current i cd (ma) rn5vd45 input voltage v in (v) topt = ?0?c 25?c 80?c v ds= 0.5v 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 c d pin sink current i cd (ma) rn5vd27 input voltage v in (v) topt = 30?c 25?c 80?c v ds= 0.5v rn5vd 25 01234 0 2 4 6 8 10 c d pin sink current i cd (ma) rn5vd45 c d pin voltage v ds (v) v dd = 4.0v 3.5v 3.0v 2.5v 2.0v 1.5v 10) output delay time vs. external capacitance 11) delay resistance vs. temperature 0.0001 0.001 0.01 0.1 1 0.01 0.1 1 10 100 1000 output delay time t p (ms) rn5vd09a external capacitance c d (?) t d t phl 0.0001 0.001 0.01 0.1 1 0.01 0.1 1 10 100 1000 output delay time t p (ms) rn5vd27a external capacitance c d (?) t d t phl 0.0001 0.001 0.01 0.1 1 0.01 0.1 1 10 100 1000 output delay time t p (ms) rn5vd45a external capacitance c d (?) t d t phl ?0 ?0 0 20 40 60 80 0.4 0.6 0.8 1.0 1.2 1.4 1.6 delay resistance r d (m w ) rn5vd temperature topt(?c) rn5vd 26 typical applications ? rn5vd a cpu reset circuit (nch open drain output) ? rn5vd c cpu reset circuit (cmos output) ? memory back-up circuit (1) input voltage to rn5vd a is the same as the input voltage to cpu. (2) input voltage to rn5vd a is different from the input voltage to cpu. r v dd gnd out c d c d rn5vd a series v dd v dd cpu reset gnd v dd v dd1 v dd2 gnd out r rn5vd a series v dd cpu reset gnd c d c d v dd v dd out gnd rn5vd c series v dd cpu reset gnd c d c d out d2 d1 a b g y1 y2 y3 y4 v cc ram1 gnd cs v cc ram2 gnd cs v cc ram3 gnd cs v cc ram4 gnd cs gnd v dd v dd gnd v cc rn5vd c series c d c d rn5vd 27 1. when rn5vd c (cmos output) is used in fig.10,this ic may oscillate by the through-type current at the detec- tion when impedance is connected between power source v dd and rn5vd v dd pin.when rn5vd a (nch open drain output) is used in fig.10, and r becomes excessively large, detector threshold may be varied because of the voltage drop of the supply current in the ic itself. 2. the connection as shown in fig. 11 may cause the oscillation in both rn5vd c (cmos output) and rn5vd a (nch open drain output) application hints series v dd v dd out c d gnd rn5vd fig.10 series rn5vd v dd v dd gnd out r2 r1 c d fig.11 ? manual reset circuit v dd r v dd v dd c d gnd out c d v dd rn5vd c series v dd c d gnd out c d rn5vd a series |
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