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supervisory circuits with watchdog and manual r eset in 5 - lead sot - 23 data sheet adm8316 / adm8318 / adm8319 / adm8320 / adm8321 / ADM8322 rev. 0 document feedback information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for i ts use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devic es. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062 - 9106, u.s.a. tel: 781.329.4700 ? 2013 analog devices, inc. all rights reserved. technical support www.analog.com features 26 reset threshold options 2.5 v to 5 v in 100 mv increments 4 reset timeout options 1 ms, 20 ms, 140 ms, and 1120 ms (min imum ) 4 watchdog timeout options 6.3 ms, 102 ms, 1 .6 sec , and 25.6 sec (typ ical ) manual reset input multiple r eset output op tions low power consumption specified over wide temperature range ( ? 40 c to + 125c) qualified for automotive applications 5 - lead sot - 23 package applications automotive infotainment microprocessor systems computers controllers intelligent instruments portable equipment functional block dia gram s figure 1 . adm8316 figure 2 . adm8320 general descript ion the adm8316 / adm8318 / adm8319 / adm8320 / adm8321 / adm8 322 are supervisory circuits that monitor power supply voltage levels and code execution integrity in microprocessor - based systems. as well as providing power - on reset signals, an on - chip watc hdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. a reset signal can also be asserted by an external push - button switch through a manual reset input. the six devices feature different combinations of watchdog inp ut, manual reset input, and output stage configuration, as shown in tabl e 6 . each device is available in a choice of 26 reset threshold options ranging from 2.5 v to 5 v in 100 mv increments. there are also four r eset timeout options of 1 ms, 20 ms, 140 ms, and 1120 ms (minimum) and four watchdog timeout options of 6.3 ms, 102 ms, 1 .6 s ec , and 25.6 sec (typical). the adm8316 / adm8318 / adm8319 / adm8320 / adm8321 / ADM8322 are available in 5 - lead sot - 23 packages and typically consume only 1 0 a, making them suitable for use in low power , portable applications. adm8316 v cc v cc mr gnd wdi reset reset generator watchdog detector debounce v ref 1 1779-001 adm8320 v cc mr gnd wdi reset reset generator watchdog detector v ref 1 1779-002 debounce free datasheet http://
adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 data sheet rev. 0 | page 2 of 16 table of contents features .............................................................................................. 1 ? applications ....................................................................................... 1 ? functional block diagrams ............................................................. 1 ? general description ......................................................................... 1 ? revision history ............................................................................... 2 ? specifications ..................................................................................... 3 ? absolute maximum ratings ............................................................ 5 ? esd caution .................................................................................. 5 ? pin configurations and function descriptions ........................... 6 ? typical performance characteristics ............................................. 7 ? theory of operation ...................................................................... 10 ? circuit description..................................................................... 10 ? push-pull reset output ............................................................. 10 ? open-drain reset output ..................................................... 10 ? manual reset input .................................................................... 10 ? watchdog input .......................................................................... 10 ? applications information .............................................................. 11 ? watchdog input current ........................................................... 11 ? negative going v cc transients ................................................. 11 ? ensuring reset valid to v cc = 0 v ........................................... 11 ? watchdog software considerations ......................................... 11 ? options ............................................................................................ 12 ? outline dimensions ....................................................................... 14 ? ordering guide .......................................................................... 14 ? automotive products ................................................................. 15 ? revision history 10/13revision 0: initial version free datasheet http://
data sheet adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 rev. 0 | page 3 of 16 specifications v cc = (v th + 1 .5%) to 5.5 v, t a = ?40c to + 125c , unless otherwise noted. typical values are at t a = 25c . table 1. parameter min typ max unit test conditions/comments supply v cc operating voltage range 1 0.9 5.5 v v cc that guarantees valid output 0.9 v supply current (wdi floating ) 10 20 a v cc = 5.5 v 10 18 a v cc = 3.6 v reset threshold voltage 2 v th ? 1% v th v th + 1 % v t a = 25 c v th ? 1.5% v th v th + 1.5% v t a = ? 40c to +12 5 c reset threshold temperature coefficient 20 ppm/c reset t hreshold hysteresis 2.5 v th mv reset timeout period see table 7 reset timeout option a 1 1.4 1.8 ms reset timeout option b 20 28 36 ms reset timeout option c 140 200 26 0 ms reset timeout option d 1120 1600 2080 ms v cc to reset delay , t rd 90 s v cc falling at 1 mv/s push - pull output ( adm8316 , adm8318 , adm8319 , adm8321 , ADM8322 ) reset output voltage 0.2 v v cc 0.9 v, i sink = 25 a 0.2 v v cc 1.2 v, i sink = 100 a 0.2 v v cc 2.7 v, i sink = 1.2 ma 0.3 v v cc 4.5 v, i sink = 3.2 ma 0.9 v cc v v cc 2.7 v, i source = 500 a 0.9 v cc v v cc 4.5 v, i source = 800 a reset r ise time 50 100 ns from 10% to 90% v cc , c l = 5 pf, v cc = 3.3 v reset output voltage 0.2 v v cc 2.7 v, i sink = 1.2 ma 0.3 v v cc 4.5 v, i sink = 3.2 ma 0.9 v cc v v cc 2.7 v, i source = 500 a 0.9 v cc v v cc 4.5 v, i source = 800 a o pen - drain out put ( adm8320 , adm8321 , ADM8322 ) reset output voltage 0.2 v v cc 0.9 v, i sink = 25 a 0.2 v v cc 1.2 v, i sink = 100 a 0.2 v v cc 2.7 v, i sink = 1.2 ma 0.3 v v cc 4.5 v, i sink = 3.2 ma open - drain reset output leakage current 1 a watchdog input ( adm8316 , adm8318 , adm8320 , adm8321 ) watchdog timeout period , t wd see table 8 watchdog timeout option w 4.5 6.3 8.1 ms watchdog timeout option x 72 102 132 ms w atchdog timeout option y 1.12 1.6 2.24 sec watchdog timeout option z 18.0 25.6 33.2 sec wdi pulse width 50 ns v il = 0.3 v cc , v ih = 0.7 v cc wdi input threshold 0.3 v cc 0.7 v cc v wdi input current 35 100 a free datasheet http://
adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 data sheet rev. 0 | page 4 of 16 parameter min typ max unit test conditions/comments manua l reset input ( adm8316 , adm8319 , adm8320 , ADM8322 ) v il 0.8 v v ih 2.0 v mr input pulse width 1 s mr glitch rejection 100 ns mr pull - up resistance 35 75 125 k mr to reset delay 350 ns v cc = 5 v 1 the device switches from undervoltage reset to normal operation when 1.5 v < v cc < 2.5 v. 2 the device monitors v cc through an internal factory trimmed voltage divider that programs the nominal reset threshold. facto ry- trimmed reset thre s holds are available in approximately 100 mv increments from 2. 5 v to 5 v. free datasheet http://
data sheet adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 rev. 0 | page 5 of 16 absolute maximum rat ings t a = 25 c, unless otherwise noted. table 2. parameter rating v cc ?0.3 v to + 6 v all other pins ?0.3 v to (v cc + 0.3 v) output current (res et, reset ) 20 ma operating temperature range ? 40c to +12 5 c storage temperature range ? 65c to +1 50c ja thermal impedance, sot -23 270 c/w lead temperature soldering ( 10 sec) 300 c vapor phase ( 60 sec) 215 c infrared ( 15 sec) 220 c stresses above those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. esd caution free datasheet http://
adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 data sheet rev. 0 | page 6 of 16 pin configurations a nd function descript ions figure 3 . adm8316 / adm8320 pin configuration table 3. adm8316 / adm8320 pin function descriptions pin no. mnemonic description 1 reset active low re set output . asserted whenever v cc is below the reset threshold, v th . this pin is a push - pull output stage for the adm8316 and an open - drain output stage for the adm8320 . 2 gnd ground. 3 mr manual reset input. this is an active low input that , when forced low for greater than the glitch filter time , gen erates a rese t. it features a 75 k internal pull -up resistor . 4 wdi watchdog input. generates a reset if the logic level on the pin remains low or high for the duration of the watchdog timeout. the timer is cleared if a logic transition occurs on this pin or if a re set is generated. leave this pin floating to disable the watchdog timer. 5 v cc power supply voltage being monitored . figure 4 . adm8318 / adm8321 pin configuration table 4. adm8318 / adm8321 pin function descriptions pin no. mnemonic description 1 reset active low reset output . asserted whenever v cc is below the reset threshold, v th . this pin is a push - pull output stage for the adm8318 and an open - drain output stage for the adm83 21 . 2 gnd ground. 3 reset active high push - pull reset output. 4 wdi watchdog input. generates a reset if the logic level on the pin remains low or high for the duration of the watchdog timeout. the timer is cleared if a logic transition occurs on th is pin or if a reset is generated. leave this pin floating to disable the watchdog timer. 5 v cc power supply voltage being monitored . figure 5 . adm8319 / ADM8322 pin configuration table 5. adm8319 / ADM8322 pin function descriptions pin no. mnemonic description 1 reset active low reset output . asserted whenever v cc is below the reset threshold, v t h . this pin is a push - pull output stage for the adm8319 and an open - drain output stage for the ADM8322 . 2 gnd ground. 3 reset active high push - pull reset output. 4 mr manual reset input. this is an active low input that , when forced low for greater than the glitch filter time, generates a reset. it features a 75 k internal pull -up resistor . 5 v cc power supply voltage being monitored . reset gnd mr 1 3 2 v cc 5 wdi 4 adm8316/ adm8320 top view (not to scale) 1 1779-003 reset gnd reset 1 3 2 v cc 5 wdi 4 adm8318/ adm8321 top view (not to scale) 1 1779-004 mr reset gnd reset 1 3 2 v cc 5 4 adm8319/ ADM8322 top view (not to scale) 1 1779-005 free datasheet http://
data sheet adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 rev. 0 | page 7 of 16 typical performance characteristics figure 6 . supply current (i cc ) vs. temperature figure 7 . supply current (i cc ) vs. s upply voltage (v cc ) figure 8 . normalized reset threshold vs. temperature figure 9 . v cc to reset delay vs. temperature figure 10 . manual reset to reset propagation delay vs. temperature figure 11 . normalized reset timeout vs. temperature 0 1 2 3 4 5 6 7 8 9 1 1 10 12 13 14 ?40 i cc (a) ?20 0 20 40 60 80 100 120 temper a ture (c) v cc = 5.0v v cc = 3.0v v cc = 1.5v 1 1779-006 0 2 4 6 8 10 12 i cc (a) v cc (v) 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 5.2 5.6 1 1779-007 0.95 0.96 0.97 0.98 0.99 1.00 1.01 1.02 1.03 1.04 1.05 ?40 ?20 0 20 40 60 80 100 120 normalized reset threshold temper a ture (c) 1 1779-008 0 10 20 30 40 50 60 70 80 90 100 v cc t o reset del a y (s) temper a ture (c) v th = 2.93v v th = 2.5v v th = 5v 1 1779-009 ?40 ?20 0 20 40 60 80 100 120 0 50 100 150 200 250 300 350 400 450 500 pro p ag a tion del a y (ns) temper a ture (c) v th = 2.93v v th = 2.5v v th = 5v 1 1779-010 ?40 ?20 0 20 40 60 80 100 120 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 normalized reset timeout temper a ture (c) 1 1779-0 1 1 ?40 ?20 0 20 40 60 80 100 120 free datasheet http://
adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 data sheet rev. 0 | page 8 of 16 figure 12 . normalized watchdog timeout vs. temperature figure 13 . maximum v cc transient duration vs. reset threshold overdrive figure 14 . manual reset ( mr ) minimum pulse width vs. temperature figure 15 . watchdog input minimum pulse width vs. temperature figu re 16 . reset open - drain v ol voltage vs. v cc voltage (v th = 3 v) figure 17 . reset push - pull v ol voltage vs. v cc voltage (v th = 4 v) 0.90 0.95 1.00 1.05 1.10 1.15 1.20 normalized w a tchdog timeout temper a ture (c) 1 1779-012 ?40 ?20 0 20 40 60 80 100 120 0 20 40 60 80 100 120 140 160 10 100 1000 maximum transient duration (s) overdrive voltage (mv) v th = 2.93v reset asserted above curve v th = 4.63v v th = 5v 1 1779-013 ?40 ?20 0 20 40 60 80 100 120 650 660 670 680 690 700 710 720 730 740 750 760 770 780 790 800 810 820 830 840 850 mr minimum pulse width (ns) temper a ture (c) 1 1779-014 v th = 2.5v v th = 2.93v v th = 5v 0 1 2 3 4 5 6 7 8 9 minimum pulse width (ns) temper a ture (c) ?40 ?20 0 20 40 60 80 100 120 negative pulse positive pulse 1 1779-015 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 reset vo lt age (v) v cc voltage (v) 0.008 0.058 0.108 0.158 0.208 0.258 0.308 1 1779-016 i sink = 3.2ma i sink = 800 a 0 0 . 0 5 0 . 1 0 0 . 1 5 0 . 2 0 0 . 2 5 0 . 3 0 1 . 1 1 . 3 1 . 5 1 . 7 1 . 9 2 . 1 2 . 3 2 . 5 2 . 7 2 . 9 3 . 1 3 . 3 3 . 5 3 . 7 3 . 9 r ese t vo l t a g e (v) v c c v olt a g e (v) 1 1779 - 01 7 i sink = 3.2ma i sink = 800 a free datasheet http://
data sheet adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 rev. 0 | page 9 of 16 figure 18 . reset push - pull v oh voltage vs. v cc voltage (v th = 3 v) figure 19 . reset push - pull rise time vs. v cc voltage 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 reset vo lt age (v) v cc vo lt age (v) i source = 3.2ma i source = 800 a 1 1779-018 16 17 18 19 20 21 22 23 24 25 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 rise time (ns) v cc vo lt age (v) 1 1779-019 free datasheet http://
adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 data sheet rev. 0 | page 10 of 16 theory of operation circuit description the adm8316 / adm8318 / adm8319 / adm8320 / adm8321 / ADM8322 provide microprocessor supply voltage supervision by controlling the microprocessor reset input. code execution errors are avoided during power-up, power-down, and brownout conditions by asserting a reset signal when the supply voltage is below a preset threshold and by allowing supply voltage stabilization with a fixed timeout reset delay after the supply voltage rises above the threshold. in addition, problems with microprocessor code execution can be monitored and corrected with a watchdog timer ( adm8316 / adm8318 / adm8320 / adm8321 ). if the user detects a problem with system operation, a manual reset input is available ( adm8316 / adm8319 / adm8320 / ADM8322 ) to reset the microprocessor, for example, by means of an external push-button switch. push-pull reset output the adm8316 features an active low push-pull reset output, whereas the adm8321 / ADM8322 have active high push-pull reset outputs. the adm8318 / adm8319 feature dual active low and active high push-pull reset outputs. for active low and active high outputs, the reset signal is guaranteed to be valid for v cc down to 0.9 v. the reset output is asserted when v cc is below the reset thresh- old (v th ), when mr is driven low, or when wdi is not serviced within the watchdog timeout period (t wd ). the reset output remains asserted for the duration of the reset active timeout period (t rp ) after v cc rises above the reset threshold, after mr transitions from low to high, or after the watchdog timer times out. figure 20 illustrates the behavior of the reset outputs. figure 20. reset timing diagram open-drain reset output the adm8320 / adm8321 / ADM8322 have an active low, open- drain reset output. this output structure requires an external pull-up resistor to connect the reset output to a voltage rail no higher than v cc . a resistor that complies with the logic low and logic high voltage level requirements of the microprocessor while supplying input current and leakage paths on the reset line is recommended. a 10 k resistor is adequate in most situations. manual reset input the adm8316 / adm8319 / adm8320 / ADM8322 feature a manual reset input ( mr ), which when driven low, asserts the reset output. when mr transitions from low to high, the reset remains asserted for the duration of the reset active timeout period before deasserting. the mr input has a 75 k, internal pull-up resistor so that the input is always high when unconnected. an external push-button switch can be connected between mr and ground so that the user can generate a reset. debounce circuitry for this purpose is integrated on chip. noise immunity is provided on the mr input, and fast, negative going transients of up to 100 ns (typical) are ignored. a 0.1 f capacitor between mr and ground provides additional noise immunity. watchdog input the adm8316 / adm8318 / adm8320 / adm8321 feature a watchdog timer that monitors microprocessor activity. a timer circuit is cleared with every low-to-high or high-to-low logic transition on the watchdog input pin (wdi), which detects pulses as short as 50 ns. if the timer counts through the preset watchdog timeout period (t wd ), a reset is asserted. the micro- processor is required to toggle the wdi pin to avoid asserting the reset pin. failure of the microprocessor to toggle wdi within the timeout period, therefore, indicates a code execution error, and the reset pulse generated restarts the microprocessor in a known state. as well as logic transitions on wdi, the watchdog timer is also cleared by a reset assertion due to an undervoltage condition on v cc or due to mr being pulled low. when a reset asserts, the watchdog timer clears and does not begin counting again until the reset deassserts. the watchdog timer can be disabled by leaving wdi floating or by tristating the wdi driver. figure 21. watchdog timing diagram v cc 1v v cc 0v v cc 0v v th v th 0v v cc reset reset t rd t rd 1v t rp t rp 11779-020 v cc 1v v cc 0v v cc 0v v th 0v v cc wdi reset t rp t rp t wd 11779-021 free datasheet http://
data sheet adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 rev. 0 | page 11 of 16 applications informa tion watchdog input curre nt to minimize the watch dog input current, leave wdi low for the majority of the watchdog timeout period. when driven high, wdi can draw as much as 10 0 a. pulsing wdi low to high to low at a low duty cycle reduces the effect of the large input current. when wdi is unconnected, a window comparator disconnects the watchdog timer from the reset output circuitry so that a reset is not asserted when the watchdog timer times out. negative going v cc transients to avoi d unnecessary resets caused by fast power supply transien ts, the adm8316 / adm8318 / adm8319 / adm8320 / adm8321 / ADM8322 are equipped with glitch rejection circuitry . the typical performance characteristic in figure 13 plots v cc transient duration vs. reset threshold overdrive . th e curves show combinations of reset threshold overdrive and duration for which a reset is not generated for 5 v, 4.63 v , and 2.93 v reset threshold devices . for example, with the 2.93 v threshold, a transient that goes 100 mv below the threshold and lasts 8 0 s typically does not cause a reset, but if the transient is any larger in reset threshold overdrive or duration, a reset generate s . an optional 0.1 f bypass capacitor mounted near v cc provides additional glitch rejection. ensuring reset valid to v cc = 0 v both active low and active high reset outputs are guaranteed to be valid for v cc as low as 0.9 v. however, by using an external resistor with push - pull configured reset outputs, valid outputs for v cc as low as 0 v are possible. for an active low rese t output, a resistor connected between reset and ground pulls the output low when it is unable to sink current. for an active high reset output , a res istor connected between reset and v cc pulls the output hig h when it is unable to source current. use a large resistance, such as 100 k?, so that it does not overload the reset output when v cc is greater than 0.9 v. figure 22 . ensuring reset valid to v cc = 0 v watchdog software co nsiderations in implementing the mi croprocessor watchdog strobe code, quickly switching wdi low to high and then high to low (mini - mizing wdi high time) is desirable for current consumption reasons. however, a more effective way of using the watchdog function can be considered. a low to hig h to low wdi pulse within a given subroutine prevents the watchdog from timing out. however, if the sub - routine becomes stuck in an infinite loop, the watchdog cannot detect this because the subroutine continues to toggle wdi. a more effective coding schem e for detecting this error involves using a slightly longer watchdog timeout. in the program that calls the subroutine, wdi is set high. the subroutine sets wdi l ow when it is called. if the program executes without error, wdi is toggled high and low with every loop of the program. if the subroutine enters an infinite loop, wdi is kept low, the watchdog times out, and the microprocessor is reset (see figure 23). figure 23 . watchdog flow d iagram figure 24 . typical application circuit adm8316/ adm8318/ adm8319 v cc reset 100k ? adm8318/ adm8319/ adm8321/ ADM8322 v cc reset 100 k? 1 1779-022 start set wdi high program code subroutine set wdi low return infinite loop: watchdog times out reset 1 1779-023 reset reset wdi i/o mr adm8316 v cc microprocessor 1 1779-024 free datasheet http://
adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 data sheet rev. 0 | page 12 of 16 options table 6 . selection table device no. watchdog manual reset output stage reset reset adm8316 yes yes push - pull no adm8318 yes no push - pull push - pull adm8319 no yes push - pull push - pull adm8320 yes yes open - drain no adm8321 yes no open - drain push - pull ADM8322 no yes open - drain push - pull table 7 . reset timeout options suffix min imum typ ical max i mum unit a 1 1.4 1.8 ms b 20 28 36 ms c 140 200 260 ms d 1120 1600 2080 ms table 8 . watchdog timeout options suffix minimum typical maximum unit w 4.5 6.3 8.1 ms x 72 102 132 ms y 1.12 1.6 2.24 sec z 18.0 25.6 33.2 sec ta ble 9 . reset voltage threshold options reset threshold number t a = 25 c t a = ? 40 c to + 125 c unit minimum typical max imum min imum maximum 50 4.950 5.000 5.050 4.925 5.075 v 49 4.851 4.900 4.949 4.826 4.974 v 48 4.752 4.800 4.848 4.728 4.872 v 47 4.653 4.700 4.747 4.629 4.771 v 46 4.584 4.630 4.676 4.560 4.700 v 45 4.455 4.500 4.545 4.432 4.568 v 44 4.346 4.390 4.434 4.324 4.456 v 43 4.257 4.300 4.343 4.235 4.365 v 42 4.158 4.200 4.242 4.137 4.263 v 41 4.059 4.100 4.141 4.038 4.162 v 40 3.960 4.00 4.040 3.940 4.060 v 39 3.861 3.900 3.939 3.841 3.959 v 38 3.762 3.800 3.838 3.743 3.857 v 37 3.663 3.700 3.737 3.644 3.756 v 36 3.564 3.600 3.636 3.546 3.654 v 35 3.465 3.500 3.535 3.447 3.553 v 34 3.366 3.400 3.434 3.349 3.451 v 33 3.267 3.300 3.333 3.250 3.350 v 32 3.168 3.200 3.232 3.152 3.248 v 31 3.049 3.080 3.1 11 3.033 3.127 v 30 2.970 3.000 3.030 2.955 3.045 v 29 2.901 2.930 2.959 2.886 2.974 v 28 2.772 2.800 2.828 2.758 2.842 v 27 2.673 2.700 2.727 2.659 2.741 v 26 2.604 2.630 2.656 2.590 2.670 v 25 2.475 2.500 2.525 2.462 2.538 v free datasheet http://
data sheet adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 rev. 0 | page 13 of 16 table 10 . standard models model reset threshold (v) minimum reset timeout (ms) typical watchdog timeout (sec) adm8316 wbx30arjzr7 3 20 0.102 adm8316 wbx46arjzr7 4.63 20 0.102 adm8318 wcy46arjzr7 4.63 140 1.6 adm8319 wb31arjzr7 3.08 20 not applicable adm8320 wcy29arjzr7 2.93 140 1.6 adm8321 way30arjzr7 3 1 1.6 adm8321 wcy46arjzr7 4.63 140 1.6 ADM8322 wc46arjzr7 4.63 140 not applicable free datasheet http://
adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 data sheet rev. 0 | page 14 of 16 outline dimensions figure 25 . 5 - lead small outline transistor package [sot - 23] (rj - 5) dimensions shown in millimeters figure 26 . ordering code structure ordering guide model 1 , 2 , 3 , 4 temperature range ordering quantity 5 package description package option branding adm 8316 wxxxxarjzr 7 ? 40 c to + 125 c 3,000 5- lead sot -23 rj -5 lmt adm 8318 wxxxxarjzr 7 ? 40 c to + 125 c 3,000 5- lead sot -23 rj -5 lmw adm 8319 wxxxarjzr 7 ? 40 c to + 125 c 3,000 5- lead sot -23 rj -5 lmv adm 8320 wxxxxarjzr 7 ? 40 c to + 125 c 3,000 5- lead sot -23 rj -5 lmx adm 8321 wxxxxarjzr 7 ? 40 c to + 125 c 3,000 5- lead sot -23 rj -5 lmy adm 8322 wxxxarjzr 7 ? 40 c to + 125 c 3,000 5- lead sot -23 rj -5 l mz 1 complete the ordering code by inserting the reset timeout, watchdog timeout, and reset threshold ( adm8316 / adm8318 / adm8320 / adm8321 ) suffixes from table 7 to table 9 . no watchdog timeout is available for adm8319 / ADM8322 . 2 contact s ales for the availability of nonstandard models. see table 10 for a list of standard models . 3 z = rohs compliant part. 4 w = qualified for automotive applications. 5 a minimum of 12,000 (four reels) must be ordered for nonstandard models. c o m p l i a n t t o j e d e c s t a n d a r d s m o - 1 7 8 - a a 1 0 5 0 s e a t i n g p l a n e 1 . 9 0 b s c 0 . 9 5 b s c 0 . 6 0 b s c 5 1 2 3 4 3 . 0 0 2 . 9 0 2 . 8 0 3 . 0 0 2 . 8 0 2 . 6 0 1 . 7 0 1 . 6 0 1 . 5 0 1 . 3 0 1 . 1 5 0 . 9 0 0 . 1 5 m a x 0 . 0 5 m i n 1 . 4 5 m a x 0 . 9 5 m i n 0 . 2 0 m a x 0 . 0 8 m i n 0 . 5 0 m a x 0 . 3 5 m i n 0 . 5 5 0 . 4 5 0 . 3 5 1 1 - 0 1 - 2 0 1 0 - a z : r o h s c o mp li an t ad m 8 3 w _ _ _ _ _ _ ar j z r 7 o rd e r i n g q uan tit y r 7 : 3000 -p i e c e r ee l , r o h s c o mp li an t p acka g e c o d e r j : 5 - l e ad s ot - 2 3 t empe ra t ur e ran g e a : ?40 c to + 125 c r ese t t hr es h ol d nu m b er ( 25 t o 50 ) w a t chd og t i me o u t pe r io d w : 6 . 3ms ( t yp) x: 102ms ( t yp) y: 1 . 6sec ( t yp) z : 25 . 6sec ( t yp) r ese t t i me o u t pe r io d a : 1ms (m i n ) b : 20ms (m i n ) c : 140ms (m i n ) d : 1120ms (m i n ) g e n e r i c nu m b er ( 16 t o 22 ) w : au t o m o t i ve q ua l 1 1779-025 free datasheet http://
data sheet adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 rev. 0 | page 15 of 16 automotive products the adm8316 w/ adm8318 w/ adm8319 w/ adm8320 w/ adm8321 w / ADM8322 w models are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. note that these automotive m odels may have specifications that differ from the commercial models; therefore, designers should review the specifications section of this data sheet carefully. only the automotive grade products shown are available for use in automotive applications. contact your local anal og devices account representative for specific product ordering information and to obtain the specific automotive reliability reports for these models. free datasheet http://
adm8316/adm8318/adm8319/adm8320/adm8321/ADM8322 data sheet rev. 0 | page 16 of 16 notes ? 2013 analog devices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. d11779 - 0 - 10/13(0) free datasheet http://

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