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r3116x series 0.8% low voltage detector with output delay no.ea-161-110106 1 outline the r3116x series are cmos-based voltage detector ic s with high detector threshold accuracy and ultra-low supply current, which can be operated at an extremely lo w voltage and is used for system reset as an example. each of these ics consists of a voltage reference unit, a comparator, resistors for detector threshold setting, an output driver, a hysteresis circuit and an output delay circuit. the detector threshold is internally fixed with high accuracy and does not require any adjustment. two output types, nch open drain type and cmos type are available. the r3116x series are operable at a lower voltage t han that of the r3112x series, and can be driven by a single battery. three types of packages, sot-23-5, sc- 82ab, and dfn(plp)1010-4 are available. features ? supply current ......................................................................typ. 0.35 a (-v det = 1.5v, v dd = -v det + 1v) ? operating voltage rang e......................................................0.5v to 6.0v (t opt = 25 c) ? detector threshol d range.................................................... 0.7v to 5.0v (0.1v steps) ( for other voltages, please refer to mark informations.) ? detector threshold accuracy................................................ 0.8% (-v det 1.5v) ? temperature-drift coefficient of detector threshold ............typ. 30ppm/ c ? built-in output delay ci rcuit..................................................typ. 100ms with an external capacitor: 0.022 f ? output delay time accuracy................................................. 15% (-v det 1.5v) ? output types .........................................................................nch open drain "l" and cmos ? packages ..............................................................................dfn( plp)1010-4, sc-82ab, sot-23-5 applications ? cpu and logic circuit reset ? battery checker ? window comparator ? wave shaping circuit ? battery back-up circuit ? power failure detector
r3116x 2 block diagrams nch open drain output (r3116xxx1a) cmos output (r3116xxx1c) out v dd vref gnd delay circuit c d v dd vref gnd delay circuit c d out selection guide the package type, the detector threshold, the out put type and the taping type for the ics can be selected at the users? request. product name package quantity per reel pb free halogen free r3116kxx1 ? -tr dfn(plp)1010-4 10,000 pcs yes yes r3116qxx1 ? -tr-fe sc-82ab 3,000 pcs yes yes r3116nxx1 ? -tr-fe sot-23-5 3,000 pcs yes yes xx : the detector threshold can be designated in the range from 0.7v(07) to 5.0v(50) in 0.1v steps. (for other voltages, please refer to mark informations.) ? : designation of output type (a) nch open drain (c) cmos
r3116x 3 pin configurations ? dfn(plp)1010-4 ? top view 2 1 3 4 bottom view 1 2 4 3 ? sot-23-5 ? sc-82ab 1 4 5 23 (mark side) 12 3 4 (mark side) pin descriptions ? dfn(plp)1010-4 ? ? sot-23-5 pin no. symbol description pin no. symbol description 1 out output pin ("l" at detection) 1 out output pin ("l" at detection) 2 c d pin for external capacitor (for setting output delay) 2 v dd input pin 3 gnd ground pin 3 gnd ground pin 4 v dd input pin 4 nc no connection 5 c d pin for external capacitor (for setting output delay) ? sc-82ab pin no. symbol description 1 v dd input pin 2 gnd ground pin 3 c d pin for external capacitor (for setting output delay) 4 out output pin ("l" at detection) ? ) tab is gnd level. (they are connected to the reverse side of this ic.) the tab is better to be connected to the gnd, but leaving it open is also acceptable.
r3116x 4 absolute maximum ratings symbol item rating unit v dd supply voltage 7.0 v output voltage (nch open drain output) v ss ? 0.3 to 7.0 v out output voltage (cmos output) v ss ? 0.3 to v dd + 0.3 v i out output current 20 ma power dissipation (sot-23-5) ? 420 power dissipation (sc-82ab) ? 380 p d power dissipation (dfn(plp)1010-4) ? 400 mw topt operating temperature range ? 40 to 85 c tstg storage temperature range ? 55 to 125 c ? ) for power dissipation, please refer to package information. absolute maximum ratings electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safe ty for both device and sy stem using the device in the field. the functional operation at or over these absolute maximum ratings is not assured. recommended operating conditions (electrical characteristics) all of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. the semiconductor devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. and the semiconductor de vices may receive serious damage when they continue to operate over the recommended operating conditions.
r3116x 5 electrical characteristics ? r3116x071a/c values indicate ? 40c t opt 85c, unless otherwise noted. topt = 25 c symbol item conditions min. typ. max. unit t opt = 25 c 0.6880 0.7120 -v det detector threshold ? 40 c t opt 85 c 0.6775 0.7 0.7225 v v hys detector threshold hysteresis 0.028 0.049 v v dd = 0.6v 1.4 i ss supply current v dd = 1.7v 1.2 a v ddh maximum operating voltage 6 v t opt = 25 c 0.50 v ddl minimum operating voltage ? 1 ? 40 c t opt 85 c 0.55 v v dd = 0.55v, v ds = 0.05v 7 a nch v dd = 0.6v, v ds = 0.5v 0.02 ma i out output current (driver output pin) pch ? 2 v dd = 4.5v, v ds =? 2.1v 0.65 ma i leak nch driver leakage current ? 3 v dd = 6.0v, v ds = 7.0v 80 na -v det / t opt detector threshold temperature coefficient ? 40 c t opt 85 c 30 ppm / c t opt = 25 c 80 130 t d output delay time c d = 0.022 f v dd = 0.6v 0.77v ? 40 c t opt 85 c 70 100 150 ms ? r3116x151a/c values indicate ? 40c t opt 85c, unless otherwise noted. topt = 25 c symbol item conditions min. typ. max. unit t opt = 25 c 1.4880 1.5120 -v det detector threshold ? 40 c t opt 85 c 1.4775 1.5 1.5225 v v hys detector threshold hysteresis 0.060 0.105 v v dd = 1.4v 1.4 i ss supply current v dd = 2.5v 0.35 1.2 a v ddh maximum operating voltage 6 v t opt = 25 c 0.50 v ddl minimum operating voltage ? 1 ? 40 c t opt 85 c 0.55 v v dd = 0.55v, v ds = 0.05v 7 a nch v dd = 1.0v, v ds = 0.5v 0.40 ma i out output current (driver output pin) pch ? 2 v dd = 4.5v, v ds =? 2.1v 0.65 ma i leak nch driver leakage current ? 3 v dd = 6.0v, v ds = 7.0v 80 na -v det / t opt detector threshold temperature coefficient ? 40 c t opt 85 c 30 ppm / c t opt = 25 c 85 115 t d output delay time c d = 0.022 f v dd = 1.4v 1.65v ? 40 c t opt 85 c 75 100 135 ms all of unit are tested and specified under load conditions such that t opt = 25c except for detector threshold temperature coefficient. *1: minimum operating voltage means the value of input voltage when output voltage maintains 0.1v or less. (in case of nch open drain output type, the output pin is pulled up with a resistance of 470k ? to 5.0v) *2: in case of cmos type *3: in case of nch open drain type
r3116x 6 ? r3116x271a/c values indicate ? 40c t opt 85c, unless otherwise noted. topt = 25 c symbol item conditions min. typ. max. unit t opt = 25 c 2.6784 2.7216 -v det detector threshold ? 40 c t opt 85 c 2.6595 2.7 2.7405 v v hys detector threshold hysteresis 0.108 0.189 v v dd = 2.6v 1.5 i ss supply current v dd = 3.7v 1.2 a v ddh maximum operating voltage 6 v t opt = 25 c 0.50 v ddl minimum operating voltage ? 1 ? 40 c t opt 85 c 0.55 v v dd = 0.55v, v ds = 0.05v 7 a nch v dd = 1.5v, v ds = 0.5v 1.00 ma i out output current (driver output pin) pch ? 2 v dd = 4.5v, v ds =? 2.1v 0.65 ma i leak nch driver leakage current ? 3 v dd = 6.0v, v ds = 7.0v 80 na -v det / t opt detector threshold temperature coefficient ? 40 c t opt 85 c 30 ppm / c t opt = 25 c 85 115 t d output delay time c d = 0.022 f v dd = 2.6v 2.97v ? 40 c t opt 85 c 75 100 135 ms ? r3116x451a/c values indicate ? 40c t opt 85c, unless otherwise noted. topt = 25 c symbol item conditions min. typ. max. unit t opt = 25 c 4.4640 4.5360 -v det detector threshold ? 40 c t opt 85 c 4.4325 4.5 4.5675 v v hys detector threshold hysteresis 0.180 0.315 v v dd = 4.4v 1.7 i ss supply current v dd = 5.5v 1.4 a v ddh maximum operating voltage 6 v t opt = 25 c 0.50 v ddl minimum operating voltage ? 1 ? 40 c t opt 85 c 0.55 v v dd = 0.55v, v ds = 0.05v 7 a nch v dd = 3.0v, v ds = 0.5v 2.40 ma i out output current (driver output pin) pch ? 2 v dd = 6.0v, v ds =? 2.1v 0.90 ma i leak nch driver leakage current ? 3 v dd = 6.0v, v ds = 7.0v 80 na -v det / t opt detector threshold temperature coefficient ? 40 c t opt 85 c 30 ppm / c t opt = 25 c 85 115 t d output delay time c d = 0.022 f v dd = 4.4v 4.95v ? 40 c t opt 85 c 75 100 135 ms all of unit are tested and specified under load conditions such that t opt =25c except for detector threshold temperature coefficient. *1: minimum operating voltage means the value of input voltage when output voltage maintains 0.1v or less. (in case of nch open drain output type, the output pin is pulled up with a resistance of 470k ? to 5.0v) *2: in case of cmos type *3: in case of nch open drain type
r3116x 7 timing chart gnd gnd detect delay time (t phl ) output delay time (t d ) supply v oltage (v dd ) output v oltage (v out ) c d pin v oltage ( - v det ) (+v det ) detector threshold released voltage c d pin threshold voltage (v tcd ) ? output delay time output delay time (t d ) can be calculated with the next form ula using the external capacitor: t d (s) = 4.5 10 6 c d (f) definition of output delay time output delay time (t d ) is defined as follows: 1. in the case of nch open drain output: under the condition of the output pin (out ) is pulled up through a resistor of 470k to 5v, the time interval between the rising edge of v dd pulse from (-v det ) ? 0.1v to (-v det ) 1.1v pulse voltage is supplied, the becoming of the output voltage to 2.5v. 2. in the case of cmos output: the time interval between the rising edge of v dd pulse from (-v det ) ? 0.1v to (-v det ) 1.1v pulse voltage is supplied, the becoming of the output voltage to ((-v det ) 1.1v)/2. supply voltage (v dd ) output voltage (v out ) ? v det 1.1v ? v det ? 0.1v gnd 5.0v 2.5v gnd t d t phl ? ? ? ? ? nch open drain output cmos output (r3116xxx1a) (r3116xxx1c) when the supply voltage, which is higher than released voltage, is forced to v dd pin, charge to an external capacitor starts, then c d pin voltage increases. until the c d pin voltage reaches to c d pin threshold voltage, output voltage maintains "l". when the c d pin voltage becomes higher than c d pin threshold voltage, output voltage is reversed from "l" to "h". where the time interval between the rising edge of supply voltage and output voltage reverse point means output delay time. when the output voltage reverses from "l" to "h", the external capacitor starts to discharge. therefore, when lower voltage than the detector threshold voltage is forced to v dd pin, the output voltage reverses from "h" to "l" thus the detect delay time is constant not being affected by the external capacitor.
r3116x 8 electrical characteristics by detector threshold ? r3116x071a/c to r3116x501a/c bold values are checked and guaranteed by design engineering at ? 40 c t opt 85 c, unless otherwise noted. topt=25 c detector threshold1 detector threshold2 detector threshold hysteresis supply current1 supply current2 max. op. voltage min. op. voltage -v det1 [v] -v det2 [v] v hys [v] i ss1 [a] i ss2 [a] v ddh [v] v ddl [v] part number min. max. min. max. min. max. cond. max. cond. max. max. max. r3116x071a/c 0.6880 0.7120 0.6775 0.7225 0.028 0.049 r3116x081a/c 0.7880 0.8120 0.7775 0.8225 0.032 0.056 r3116x091a/c 0.8880 0.9120 0.8775 0.9225 0.036 0.063 r3116x101a/c 0.9880 1.0120 0.9775 1.0225 0.040 0.070 r3116x111a/c 1.0880 1.1120 1.0775 1.1225 0.044 0.077 r3116x121a/c 1.1880 1.2120 1.1775 1.2225 0.048 0.084 r3116x131a/c 1.2880 1.3120 1.2775 1.3225 0.052 0.091 r3116x141a/c 1.3880 1.4120 1.3775 1.4225 0.056 0.098 r3116x151a/c 1.4880 1.5120 1.4775 1.5225 0.060 0.105 1.400 r3116x161a/c 1.5872 1.6128 1.5760 1.6240 0.064 0.112 r3116x171a/c 1.6864 1.7136 1.6745 1.7255 0.068 0.119 r3116x181a/c 1.7856 1.8144 1.7730 1.8270 0.072 0.126 r3116x191a/c 1.8848 1.9152 1.8715 1.9285 0.076 0.133 r3116x201a/c 1.9840 2.0160 1.9700 2.0300 0.080 0.140 r3116x211a/c 2.0832 2.1168 2.0685 2.1315 0.084 0.147 r3116x221a/c 2.1824 2.2176 2.1670 2.2330 0.088 0.154 r3116x231a/c 2.2816 2.3184 2.2655 2.3345 0.092 0.161 r3116x241a/c 2.3808 2.4192 2.3640 2.4360 0.096 0.168 r3116x251a/c 2.4800 2.5200 2.4625 2.5375 0.100 0.175 r3116x261a/c 2.5792 2.6208 2.5610 2.6390 0.104 0.182 r3116x271a/c 2.6784 2.7216 2.6595 2.7405 0.108 0.189 r3116x281a/c 2.7776 2.8224 2.7580 2.8420 0.112 0.196 r3116x291a/c 2.8768 2.9232 2.8565 2.9435 0.116 0.203 r3116x301a/c 2.9760 3.0240 2.9550 3.0450 0.120 0.210 1.500 1.200 r3116x311a/c 3.0752 3.1248 3.0535 3.1465 0.124 0.217 r3116x321a/c 3.1744 3.2256 3.1520 3.2480 0.128 0.224 r3116x331a/c 3.2736 3.3264 3.2505 3.3495 0.132 0.231 r3116x341a/c 3.3728 3.4272 3.3490 3.4510 0.136 0.238 r3116x351a/c 3.4720 3.5280 3.4475 3.5525 0.140 0.245 r3116x361a/c 3.5712 3.6288 3.5460 3.6540 0.144 0.252 r3116x371a/c 3.6704 3.7296 3.6445 3.7555 0.148 0.259 r3116x381a/c 3.7696 3.8304 3.7430 3.8570 0.152 0.266 r3116x391a/c 3.8688 3.9312 3.8415 3.9585 0.156 0.273 r3116x401a/c 3.9680 4.0320 3.9400 4.0600 0.160 0.280 1.600 1.300 r3116x411a/c 4.0672 4.1328 4.0385 4.1615 0.164 0.287 r3116x421a/c 4.1664 4.2336 4.1370 4.2630 0.168 0.294 r3116x431a/c 4.2656 4.3344 4.2355 4.3645 0.172 0.301 r3116x441a/c 4.3648 4.4352 4.3340 4.4660 0.176 0.308 r3116x451a/c 4.4640 4.5360 4.4325 4.5675 0.180 0.315 r3116x461a/c 4.5632 4.6368 4.5310 4.6690 0.184 0.322 r3116x471a/c 4.6624 4.7376 4.6295 4.7705 0.188 0.329 r3116x481a/c 4.7616 4.8384 4.7280 4.8720 0.192 0.336 r3116x491a/c 4.8608 4.9392 4.8265 4.9735 0.196 0.343 r3116x501a/c 4.9600 5.0400 4.9250 5.0750 0.200 0.350 v dd = -v det -0.1v 1.700 v dd = -v det +1.0v 1.400 6 0.50 0.55 ? note1 ? note1) v dd value when output voltage is equal or less than 0.1v. in the case of nch open drai n output type, the output pin is pulled up to 5.0v through 470k ? resistor.
r3116x 9 ? note2) 1. in the case of cmos output type: when the voltage is forced from (-v det ) ? 0.1v to (-v det ) 1.1v pulse voltage is added to v dd , time interval that the output vo ltage reaches ((-v det ) 1.1v)/2. 2. in the case of nch open drain output type: the output pin is pulled up to 5.0v through 470k ? , and when the voltage is forced from (-v det ) ? 0.1v to (-v det ) 1.1v pulse voltage is added to v dd , time interval that the output voltage reaches 2.5v. nch driver output current1 nch driver output current2 pch driver output current nch driver leakage current detector threshold temperature coefficient output delay time i out1 [a] i out2 [ma] i out3 [ma] i leak [na] ? -v det / ? t opt [ppm/c] t d [ms] cond. min. cond. min. cond. min. cond. max. typ. cond. min. max. v dd = 0.6v v ds = 0.5v 0.020 80 70 130 150 v dd = 1.0v v ds = 0.5v 0.400 v dd = 1.5v v ds = 0.5v 1.000 v dd = 4.5v v ds = -2.1v 0.650 v dd = 0.55v v ds = 0.05v 7 v dd = 3.0v v ds = 0.5v 2.400 v dd = 6.0v v ds = -2.1v 0.900 v dd = 6.0v v ds = 7.0v 80 30 v dd = -v det -0.1v -v det 1.1v ? note2 85 75 115 135
r3116x 10 operation ? operation of r3116xxx1a out pin should be pulled-up to v dd or an external voltage level. vref ra rb rc v dd out gnd tr.1 nch com p arato r delay circuit c d block diagram (r3116xxx1a) 13 5 a b t d 2 4 gnd gnd v ddl - v det +v det detector threshold released voltage minimum operating voltage pull-up voltage detector threshold hysteresis supply voltage (v dd ) output voltage (v out ) t phl detect delay time step 1 2 3 4 5 comparator ( ? ) pin input voltage i ii ii ii i comparator output l h indefinite h l tr.1 off on indefinite on off output tr. nch off on indefinite on off i v dd rb + rc ra + rb + rc ii v dd rb ra + rb operation diagram ? explanation of operation step 1. the output voltage is equal to the pull-up voltage. step 2. at point "a", vref > = v dd (rb + rc)/(ra + rb + rc) is true, as a result, the output of comparator is reversed from "l" to "h", therefore the output voltage become s the gnd level. the voltage level of point a means a detector threshold voltage (-v det ). step 3. when the supply voltage is lower than the minimum operating voltage, t he operation of the output transistor becomes indefinite. the output voltage is equal to the pull-up voltage. step 4. the output voltage is equal to the gnd level. step 5. at point "b", vref < = v dd rb/(ra + rb) is true, as a result, the output of comparator is reversed from "h" to "l", then the output voltage is equal to the pull-up vo ltage. the voltage level of point b means a released voltage (+v det ). ? ) the difference between a released voltage and a detector threshold voltage is a detector threshold hysteresis. output delay time
r3116x 11 ? operation of r3116xxx1c vref ra rb rc v dd out gnd tr.1 nch com p arato r pch delay circuit c d block diagram (r3116xxx1c) t d gnd gnd v ddl - v det +v det detector threshold released voltage minimum operating voltage 1 2 3 4 5 a b detector threshold hysteresis supply voltage (v dd ) output voltage (v out ) t phl detect delay time step 1 2 3 4 5 comparator ( ? ) pin input voltage i ii ii ii i comparator output l h indefinite h l tr.1 off on indefinite on off pch on off indefinite off on output tr. nch off on indefinite on off i v dd rb + rc ra + rb + rc ii v dd rb ra + rb operation diagram ? explanation of operation step 1. the output voltage is equal to the supply voltage (v dd ). step 2. at point "a", vref > = v dd (rb + rc)/(ra + rb + rc) is true, as a result, the output of comparator is reversed from "l" to "h", therefore the output voltage becomes the gnd level. the voltage level of point a means a detector threshold voltage (-v det ). step 3. when the supply voltage is lower than the minimum operating voltage, t he operation of the output transistor becomes indefinite. step 4. the output voltage is equal to the gnd level. step 5. at point "b", vref < = v dd rb/(ra + rb) is true, as a result, the output of comparator is reversed from "h" to "l", then the output voltage is equal to the supply voltage (v dd ). the voltage level of point b means a released voltage ( + v det ). ? ) the difference between a released voltage and a detector threshold voltage is a detector threshold hysteresis. output delay time
r3116x 12 detector operation vs. glitch input voltage to the v dd pin when the r3116x is at released, if the pulse voltage which the detector threshold or lower voltage, the graph below means that the relation between pulse width and t he amplitude of the swing to keep the released state for the r3116x. 100 40 80 20 60 50 90 70 30 10 0 10 100 1000 over drive voltage (mv) pulse width ( s) r3116x071a/c r3116x501a/c 100 40 80 20 60 50 90 70 30 10 0 10 100 1000 over drive voltage (mv) pulse width ( s) r3116x071a/c r3116x501a/c detector threshold (-v det ) over drive pulse width supply voltage (v dd ) v dd input waveform this graph shows the maximum pulse conditions to keep the released voltage. if the pulse with larger amplitude or wider width than the graph above, is input to v dd pin, the reset signal may be output. c d = 0.022 f, v dd = -v det + 2v -v det ? v od (r3116x071a/c) v dd = -v det + 1v -v det ? v od (r3116x501a/c) ? v od : over drive voltage c d = = -v det 1.1 -v det ? v od (r3116x071a/c, r3116x501a/c)
r3116x 13 test circuits gnd v dd v in i ss r3116x series gnd v dd v in r3116x series out 470k 5v or v dd v out supply current test circuit detector threshold test circuit (pull-up circuit is not necessary for cmos output type.) gnd v dd v in r3116x series out v ds i out gnd v dd v in r3116xxx1c series out v dd ? nch driver output current test circuit pch driver output current test circuit ? apply to cmos output type only gnd v dd 6v r3116xxx1a series out 7v i leak gnd v dd r3116x series out 5v 470k ? ? ? nch driver leakage current test circuit output delay time test circuit ? apply to nch driver output type only (p ull-up circuit is not necessary for cmos output type.)
r3116x 14 typical characteristics 1) supply current vs. input voltage r3116x071a/c r3116x151a/c 04 256 3 17 input voltage v dd (v) supply current i ss ( a) 0 1.0 0.6 0.4 0.2 0.8 topt=85 c topt=25 c topt=- 40 c 04 256 3 17 input voltage v dd (v) supply current i ss ( a) 0 1.0 0.6 0.4 0.2 0.8 topt=85 c topt=25 c topt=- 40 c r3116x271a/c r3116x451a/c 04 256 3 17 input voltage v dd (v) supply current i ss ( a) 0 1.0 0.6 0.4 0.2 0.8 topt=85 c topt=25 c topt=- 40 c 04 256 3 17 input voltage v dd (v) supply current i ss ( a) 0 1.0 0.6 0.4 0.2 0.8 topt=85 c topt=25 c topt=- 40 c 2) detector threshold vs. temperature r3116x071a/c r3116x151a/c temperature topt ( c) detector threshold/released voltage v det (v) 0.69 0.75 0.74 0.73 0.72 0.71 0.70 -40 75 50 025 -25 85 -v det +v det temperature topt ( c) 1.48 1.60 1.58 1.56 1.54 1.52 1.50 -v det +v det -40 75 50 025 -25 85 detector threshold/released voltage v det (v)
r3116x 15 r3116x271a/c r3116x451a/c temperature topt ( c) 2.65 2.90 2.85 2.80 2.75 2.70 -v det +v det -40 75 50 025 -25 85 detector threshold/released voltage v det (v) temperature topt ( c) 4.4 4.9 4.8 4.7 4.6 4.5 -v det +v det -40 75 50 025 -25 85 detector threshold/released voltage v det (v) 3) output voltage vs. input voltage r3116x071c r3116x151c 0 0.8 0.4 0.6 0.2 1.0 input voltage v dd (v) output voltage v out (v) 0 1.2 0.6 0.4 0.2 0.8 1.0 topt=- 40 c topt=25 c topt=85 c 0 1.6 0.8 1.2 0.4 2.0 input voltage v dd (v) output voltage v out (v) 0 2.5 1.5 1.0 0.5 2.0 topt=- 40 c topt=25 c topt=85 c r3116x271c r3116x451c 0 2.0 2.5 1.0 1.5 0.5 3.0 input voltage v dd (v) output voltage v out (v) 0 3.5 1.5 1.0 0.5 2.5 2.0 3.0 topt=- 40 c topt=25 c topt=85 c 0 3.0 4.0 1.0 2.0 3.5 4.5 1.5 2.5 0.5 5.0 input voltage v dd (v) output voltage v out (v) 0 6 2 1 4 3 5 topt=- 40 c topt=25 c topt=85 c
r3116x 16 r3116x071a r3116x151a 0 0.8 0.4 0.6 0.2 1.0 input voltage v dd (v) output voltage v out (v) 0 6 3 2 1 4 5 470k 5v pull-up topt=- 40 c topt=25 c topt=85 c 0 1.6 0.8 1.2 0.4 2.0 input voltage v dd (v) output voltage v out (v) 0 6 4 2 3 1 5 470k 5v pull-up topt=- 40 c topt=25 c topt=85 c r3116x271a r3116x451a 0 2.0 2.5 1.0 1.5 0.5 3.0 input voltage v dd (v) output voltage v out (v) 0 6 4 2 3 1 5 470k 5v pull-up topt=- 40 c topt=25 c topt=85 c 0 3.0 4.0 1.0 2.0 3.5 4.5 1.5 2.5 0.5 5.0 input voltage v dd (v) output voltage v out (v) 0 6 4 2 3 1 5 470k 5v pull-up topt=- 40 c topt=25 c topt=85 c 4) nch driver output current vs. input voltage (v ds =0.5v) r3116x071a/c r3116x151a/c 0 0.6 0.8 0.4 0.2 1.0 input voltage v dd (v) nch driver output current i out (ma) 0 0.25 0.20 0.15 0.10 0.05 topt=- 40 c topt=25 c topt=85 c 0 1.5 1.0 0.5 2.0 input voltage v dd (v) nch driver output current i out (ma) 0 3.0 2.0 2.5 1.5 1.0 0.5 topt=- 40 c topt=25 c topt=85 c
r3116x 17 r3116x271a/c r3116x451a/c 0 2.0 1.0 2.5 1.5 0.5 3.0 input voltage v dd (v) nch driver output current i out (ma) 0 7.5 4.5 6.0 3.0 1.5 topt=- 40 c topt=25 c topt=85 c 04 23 15 input voltage v dd (v) nch driver output current i out (ma) 0 12 6 8 10 4 2 topt=- 40 c topt=25 c topt=85 c 5) nch driver output current vs. v ds r3116x071a/c r3116x151a/c 0 0.4 0.2 0.6 v ds (v) nch driver output current i out (ma) 0 0.20 0.10 0.05 0.15 v dd =0.6v 0 0.6 0.8 0.4 0.2 1.0 v ds (v) nch driver output current i out (ma) 0 0.8 0.4 0.2 0.6 v dd =1.0v v dd =0.6v r3116x271a/c r3116x451a/c 0 1.5 1.0 0.5 2.0 v ds (v) nch driver output current i out (ma) 0 8 4 2 6 v dd =2.0v v dd =1.0v v dd =0.6v 0 3.0 2.0 1.0 4.0 v ds (v) nch driver output current i out (ma) 0 20 10 5 15 v dd =4.0v v dd =3.0v v dd =2.0v v dd =1.0v v dd =0.6v
r3116x 18 6) pch driver output current vs. input voltage (v ds = ? 2.1v) r3116x071c r3116x151c 06 35 24 17 input voltage v dd (v) pch driver output current i out (ma) 0 2.0 1.0 0.5 1.5 topt=- 40 c topt=25 c topt=85 c 06 35 24 17 input voltage v dd (v) pch driver output current i out (ma) 0 2.0 1.0 0.5 1.5 topt=- 40 c topt=25 c topt=85 c r3116x271c r3116x451c 06 35 24 17 input voltage v dd (v) pch driver output current i out (ma) 0 2.0 1.0 0.5 1.5 topt=- 40 c topt=25 c topt=85 c 06 35 24 17 input voltage v dd (v) pch driver output current i out (ma) 0 2.0 1.0 0.5 1.5 topt=- 40 c topt=25 c topt=85 c 7) pch driver output current vs. v ds r3116x071c r3116x151c 04 25 3 16 v ds (v) pch driver output current i out (ma) 0 2.5 1.0 0.5 1.5 2.0 v dd =5.0v v dd =4.0v v dd =6.0v v dd =3.0v v dd =2.0v v dd =1.0v 04 25 3 16 v ds (v) pch driver output current i out (ma) 0 2.5 1.0 0.5 1.5 2.0 v dd =5.0v v dd =4.0v v dd =6.0v v dd =3.0v v dd =2.0v
r3116x 19 r3116x271c r3116x451c 04 25 3 16 v ds (v) pch driver output current i out (ma) 0 2.5 1.0 0.5 1.5 2.0 v dd =5.0v v dd =4.0v v dd =6.0v v dd =3.0v 04 25 3 16 v ds (v) pch driver output current i out (ma) 0 2.5 1.0 0.5 1.5 2.0 v dd =5.0v v dd =6.0v 8) output delay time vs. external capacitance r3116x071a/c r3116x151a/c 1000 10 100 1 0.1 0.01 0.0001 0.001 0.01 0.1 external capacitance c d ( f) delay time t d /t phl (ms) t phl t d 1000 10 100 1 0.1 0.01 0.0001 0.001 0.01 0.1 external capacitance c d ( f) delay time t d /t phl (ms) t phl t d r3116x271a/c r3116x451a/c 1000 10 100 1 0.1 0.01 0.0001 0.001 0.01 0.1 external capacitance c d ( f) delay time t d /t phl (ms) t phl t d 1000 10 100 1 0.1 0.01 0.0001 0.001 0.01 0.1 external capacitance c d ( f) delay time t d /t phl (ms) t phl t d
r3116x 20 9) output delay time vs. temperature (c d = 22nf) r3116x071a/c r3116x151a/c temperature topt ( c) output delay time t d (ms) 70 130 120 110 100 90 80 -40 75 50 025 -25 85 temperature topt ( c) output delay time t d (ms) 70 130 120 110 100 90 80 -40 75 50 025 -25 85 r3116x271a/c r3116x451a/c temperature topt ( c) output delay time t d (ms) 70 130 120 110 100 90 80 -40 75 50 025 -25 85 temperature topt ( c) output delay time t d (ms) 70 130 120 110 100 90 80 -40 75 50 025 -25 85
r3116x 21 typical application ? r3116xxx1a cpu reset circuit 1 (nch open drain output) case1. input voltage to r3116xxx1a is equal to input voltage to cpu case2. input voltage to r3116xxx1a is unequal to input voltage to cpu r3116xxx1a series v dd gnd out r v dd reset cpu gnd v dd 470k c d r3116xxx1a series v dd gnd out r v dd reset cpu gnd v dd2 v dd1 470k c d ? r3116xxx1c cpu reset circuit 2 (cmos output) r3116xxx1c v dd gnd out v dd reset cpu gnd v dd series c d ? memory back-up circuit r3116xxx1c series gnd v dd d1 d2 v dd gnd out a b c y1 y2 y3 y4 v cc v cc ram1 gnd cs v cc ram2 gnd cs v cc ram3 gnd cs v cc ram4 gnd cs c d
r3116x 22 ? voltage level indicator circuit (lighted when the power runs out) (nch open drain output) r3116xxx1a series v dd gnd out v dd c d ? detector threshold adjustable circuit 1 (nch open drain output) r3116xxx1a series gnd v dd v up r up out rb v dd ra c d adjustable detector threshold = (-v det ) (ra + rb)/rb hysteresis voltage = (v hys ) (ra + rb)/rb ? 1) to prevent oscillation, set ra < = 1k ? , rb < = 100 ? . ? 2) if the value of ra is set excessively large, voltage drop may occur caused by the supply current of ic itself, and detector threshold and hysteresis voltage may vary. ? 3) if v up and v dd are connected, the voltage dropdown caused by r up , may cause difference in the hysteresis voltage. ? detector threshold adjustable circuit 2 (nch open drain output) r3116xxx1a series gnd v dd v up r up out rb v dd ra c c d adjustable detector threshold = (-v det ) (ra + rb)/rb hysteresis voltage = (v hys ) (ra + rb)/rb ? 1) to prevent oscillation, set ra < = 10k ? , rb < = 1k ? , c > = 1 f. ? 2) if the value of ra is set excessively large, voltage drop may occur caused by the supply current of ic itself, and detector threshold and hysteresis voltage may vary. ? 3) if v up and v dd are connected, the voltage dropdown caused by r up , may cause difference in the hysteresis voltage. ? 4) if the value of ra, rb and c are set excessively large, the delay of the star t-up may become too long.
r3116x 23 ? window comparator circuit (nch open drain output) r3116xxx1a v dd gnd out v dd r3116xxx1a series v dd gnd out ? v det1 wc_out series r up1 r up2 ? v dd ? v det1 gnd wc_out ? v det2 gnd ? over-charge preventing circuit r3116xxx1c series v dd gnd out r4 r2 r1 r3 light solar battery d1 load
r3116x 24 technical notes when r3116xxx1a/c is used in figure x, if the value of r1 is set excessively large, the dropdown voltage caused by the consumption current of ic itself, may vary the detector threshold and the release voltage. also, if the value of r1 is set excessively large, there may be delay in start-up and may cause oscillation generated by cross conduction current. when r3116xxx1a/c is used in figure y, if the value of r1 is set excessively large, the dropdown voltage caused by the consumption current of ic itself, may va ry the detecor threshold and the released voltage. also, if the value of r1 and r2 is set exce ssively large, there may be delay in start-up and may cause oscillation generated by cross conduction current. when r3116xxx1a/c is used in figure z, if the value of r1 is set excessively large, the dropdown voltage caused by the consumption current of ic itself may vary the detector threshold and the release voltage. also, if the value of r1 is set excessively large, there may be delay in start-up and may cause oscillation generated by cross conduction current. furthermore, if the value of r1 is set large and the value of r2 is set small, released voltage level may shift and the minimum operating voltage may differ. if the value of r2 is set excessively small from r1, release may not occur and may cause oscillation. gnd v dd r3116x series out r2 r3116x series out gnd gnd v dd r3116x series out r2 r1 v dd r1 v dd r1 v dd figure x figure y figure z
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