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general description the max16000Cmax16007 are low-voltage, quad-/hex-/ octal-voltage p supervisors in small tqfn and tssop packages. these devices provide supervisory functions for complex multivoltage systems. the max16000/ max16001/max16002 monitor four voltages, the max16003/max16004/max16005 monitor six voltages, and the max16006/max16007 monitor eight voltages. the max16000/max16001/max16003/max16004/ max16006 offer independent outputs for each moni- tored voltage. the max16001/max16002/max16004C max16007 offer a reset output that asserts whenever any of the monitored voltages fall below their respective thresholds or the manual reset input is asserted. the reset output remains asserted for the reset timeout after all voltages are above their respective thresholds and the manual reset input is deasserted. the minimum reset timeout is internally set to 140ms or can be adjust- ed with an external capacitor. all open-drain outputs have internal 30a pullups that eliminate the need for external pullup resistors. however, each output can be driven with an external voltage up to 5.5v. other features offered include a manual reset input, a tolerance pin for selecting 5% or 10% input thresholds, and a margin enable function for deasserting the outputs during margin testing. the max16001/max16002/max16004Cmax16007 offer a watchdog timer that asserts reset or an indepen- dent watchdog output (max16005) when the watchdog timeout period (1.6s typ) is exceeded. the watchdog timer can be disabled by leaving the input open. these devices are offered in 12-, 16-, 20-, and 24-pin tqfn and 16-pin tssop packages. these are fully specified from -40 c to +125 c. applications storage equipment servers networking/telecommunication equipment multivoltage asics features fixed thresholds for 5v, 3.3v, 3v, 2.5v, 1.8v, 1.5v, 1.2v, and 0.9v systems adjustable thresholds monitor voltages down to 0.4v open-drain outputs with internal pullups reduce the number of external components fixed 140ms (min) or capacitor-adjustable reset timeout manual reset, margin enable, and tolerance select inputs watchdog timer 1.6s (typ) timeout period 54s startup delay after reset (except max16005) independent watchdog output (max16005) reset output indicates all voltages present independent voltage monitors guaranteed correct logic state down to v cc = 1v small (4mm x 4mm) tqfn package tssop (5mm x 4.4mm) package (max16005) max16005 gnd p tol v cc srt mr in1 margin v in1 v in2 v in3 v in4 v in5 v in6 reset wdi wdo rst i/o nmi in2 in3 in4 in5 in6 for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maximintegrated.com. max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors ordering information typical operating circuit 19-3870; rev 6; 8/12 note: the _ is a placeholder for the input voltage threshold. see table 1. + denotes a lead(pb)-free/rohs-compliant package. for tape-and-reel, add a t after the +. tape-and-reel are offered in 2.5k increments. * ep = exposed pad. ordering information continued at end of data sheet. part temp range pin-package max16000 _tc+ -40 c to +125 c 12 tqfn-ep* selector guide appears at end of data sheet.
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 2 maxim integrated absolute maximum ratings electrical characteristics (v cc = 2.0v to 5.5v, t a = -40c to +125c, unless otherwise specified. typical values are at v cc = 3.3v, t a = +25c.) (note 1) stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. v cc , out_, in_, reset , wdo to gnd....................-0.3v to +6v tol, margin , mr , srt, wdi, to gnd ..........-0.3v to v cc + 0.3 input/output current ( reset , margin , srt, mr , tol, out_, wdo , wdi) ..............................20ma continuous power dissipation (t a = +70c) 12-pin tqfn (derate 16.9mw/c above +70c) ........1349mw 16-pin tqfn (derate 16.9mw/c above +70c) ........1349mw 20-pin tqfn (derate 16.9mw/c above +70c) ........1355mw 24-pin tqfn (derate 16.9mw/c above +70c) ........1666mw 16-pin tssop (derate 9.4mw/c above +70c) ..........754mw operating temperature range .........................-40c to +125c junction temperature .....................................................+150c storage temperature range .............................-65c to +150c lead temperature (soldering, 10s) .................................+300c soldering temperature (reflow) .......................................+260c parameter symbol conditions min typ max units operating voltage range v cc (note 2) 1.0 5.5 v v cc = 3.3v, out_, reset not asserted (note 3) 45 65 supply current i cc v cc = 5v, out_, reset not asserted 50 70 a uvlo (undervoltage lockout) v uvlo v cc rising 1.62 1.8 1.98 v in_ (see table 1) 5v threshold, tol = gnd 4.50 4.625 4.75 5v threshold, tol = v cc 4.25 4.375 4.50 3.3v threshold, tol = gnd 2.970 3.053 3.135 3.3v threshold, tol = v cc 2.805 2.888 2.970 3.0v threshold, tol = gnd 2.70 2.775 2.85 3.0v threshold, tol = v cc 2.55 2.625 2.70 2.5v threshold, tol = gnd 2.250 2.313 2.375 2.5v threshold, tol = v cc 2.125 2.188 2.250 1.8v threshold, tol = gnd 1.62 1.665 1.71 1.8v threshold, tol = v cc 1.53 1.575 1.62 1.5v threshold, tol = gnd 1.350 1.388 1.425 1.5v threshold, tol = v cc 1.275 1.313 1.350 1.2v threshold, tol = gnd 1.08 1.11 1.14 1.2v threshold, tol = v cc 1.02 1.05 1.08 0.9v threshold, tol = gnd 0.810 0.833 0.855 threshold voltages (in_ falling) v th 0.9v threshold, tol = v cc 0.765 0.788 0.810 v
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 3 maxim integrated electrical characteristics (continued) (v cc = 2.0v to 5.5v, t a = -40c to +125c, unless otherwise specified. typical values are at v cc = 3.3v, t a = +25c.) (note 1) parameter symbol conditions min typ max units tol = gnd 0.388 0.394 0.400 adjustable threshold (in_ falling) v th tol = v cc 0.366 0.372 0.378 v in_ hysteresis v th _ hys in_ rising 0.5 % v th fixed thresholds 3 16 a in_ input current adjustable thresholds -100 +100 na reset srt = v cc 140 200 280 c srt = 1500pf (note 4) 2.43 3.09 3.92 c srt = 100pf 0.206 ms reset timeout t rp c srt = open 50 s srt ramp current i srt v srt = 0v 460 600 740 na srt threshold 1.173 1.235 1.293 v srt hysteresis 100 mv in_ to reset delay t rd in_ falling 20 s v c c = 3.3v , i s in k = 10m a, re s e t asser ted 0.30 v cc = 2.5v, i sink = 6ma, re s e t asser ted 0.30 reset output-voltage low v ol v cc = 1.2v, i sink = 50a, re s e t asser ted 0.30 v reset output-voltage high v oh v cc 2.0v, i source = 6a, reset deasserted 0.8 x v cc v mr input-voltage low v il 0.3 x v cc v mr input-voltage high v ih 0.7 x v cc v mr minimum pulse width 1s mr glitch rejection 100 ns mr to reset delay 200 ns mr pullup resistance pulled up to v cc 12 20 28 k ? outputs (out_ ) v cc = 3.3v, i sink = 2ma 0.30 out_ output-voltage low v ol v cc = 2.5v, i sink = 1.2ma 0.30 v out_ output-voltage high v oh v cc 2.0v, i source = 6a 0.8 x v cc v in_ to out_ propagation delay t d (v th + 100mv) to (v th - 100mv) 20 s
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 4 maxim integrated parameter symbol conditions min typ max units reference output (max16005 only) reference short-circuit current shorted to gnd 0.8 ma reference output accuracy v ref no load 1.200 1.235 1.270 v line regulation 0.005 % / v reference load regulation sourcing, 0 i ref 40a 10 ? watchdog timer (max16001/max16002/max16004?ax16007) wdi input-voltage low v il 0.3 x v cc v wdi input-voltage high v ih 0.7 x v cc v wdi pulse width (note 5) 50 ns watchdog timeout period t wdi 1.12 1.6 2.40 s watchdog startup period max16001/2/4/6/7 35 54 72 s watchdog input current v wdi = 0 to v cc (note 5) -1 +1 a v cc = 3.3v, i sink = 2ma 0.30 wdo output-voltage low (max16005 only) v ol v cc = 2.5v, i sink = 1.2ma 0.30 v wdo output-voltage high (max16005 only) v oh v cc 2.0v, i source = 6a, wdo deasserted 0.8 x v cc v digital logic tol input-voltage low v il 0.3 x v cc v tol input-voltage high v ih 0.7 x v cc v tol input current tol = v cc 100 na margin input-voltage low v il 0.3 x v cc v margin input-voltage high v ih 0.7 x v cc v margin pullup resistance pulled up to v cc 12 20 28 k ? margin delay time t md rising or falling (note 6) 50 s electrical characteristics (continued) (v cc = 2.0v to 5.5v, t a = -40c to +125c, unless otherwise specified. typical values are at v cc = 3.3v, t a = +25c). (note 1) note 1: devices are tested at t a = +25c and guaranteed by design for t a = t min to t max . note 2: the outputs are guaranteed to be in the correct logic state down to v cc = 1v. note 3: measured with wdi, margin , and mr unconnected. note 4: the minimum and maximum specifications for this parameter are guaranteed by using the worst case of the srt ramp cur- rent and srt threshold specifications. note 5: guaranteed by design and not production tested. note 6: amount of time required for logic to lock/unlock outputs from margin testing.
typical operating characteristics (v cc = 3.3v, t a = +25c, unless otherwise noted.) supply current vs. supply voltage supply voltage (v) supply current ( a) max16000 toc01 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 30 35 40 45 50 55 60 wdi, margin, and mr unconnected supply current vs. temperature temperature ( c) supply current ( a) max16000 toc02 -40 -25 -10 5 20 35 50 65 80 95 110 125 30 35 40 45 50 55 60 wdi, margin, and mr unconnected v cc = 2.5v v cc = 3.3v v cc = 5v normalized threshold vs. supply voltage normalized threshold vs. supply voltage supply voltage (v) normalized threshold vs. supply voltage supply voltage (v) normalized threshold normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.990 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.990 0.993 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.990 0.993 0.995 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.990 0.993 0.995 0.998 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.990 0.993 0.995 0.998 1.000 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.990 0.993 0.995 0.998 1.000 1.003 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.990 0.993 0.995 0.998 1.000 1.003 1.005 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.990 0.993 0.995 0.998 1.000 1.003 1.005 1.008 normalized threshold vs. supply voltage supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0.990 0.993 0.995 0.998 1.000 1.003 1.005 1.008 1.010 normalized threshold vs. temperature temperature ( c) normalized threshold max16000 toc04 -40 -25 -10 5 20 35 50 65 80 95 110 125 0.995 0.996 0.997 0.998 0.999 1.000 1.001 output voltage vs. sink current sink current (ma) v out _ (mv) max16000 toc05 012345678 0 25 50 75 100 out_ low output voltage vs. source current source current ( a) v cc - v out_ (mv) max16000 toc06 0 5 10 15 20 25 30 0 200 400 600 800 1000 out_ high reset timeout period vs. temperature temperature ( c) reset timeout period (ms) max16000 toc08 -40 -25 -10 5 20 35 50 65 80 95 110 125 190 191 192 193 194 195 196 197 198 1 10 100 1000 maximum transient duration vs. input overdrive max16000 toc07 input overdrive (mv) maximum transient duration ( s) 600 0 100 200 300 400 500 output goes low above this line reset timeout delay max16000 toc09 out1 2v/div in1 5v/div 40ms/div reset 2v/div srt = v cc max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 5 maxim integrated
typical operating characteristics (continued) (v cc = 3.3v, t a = +25c, unless otherwise noted.) 1000 0.01 0.1 1 10 100 1000 100 10 1 0.1 0.01 reset timeout period vs. c srt max16000 toc10 c srt (nf) t rp (ms) watchdog timeout period vs. temperature temperature ( c) watchdog timeout period (s) max16000 toc11 -40 -25 -10 5 20 35 50 65 80 95 110 125 1.50 1.51 1.52 1.53 1.54 1.55 1.56 1.57 1.58 1.59 1.60 margin enable function max16000 toc12 out 2v/ ma 2v/ 100 s/div res 2v/ out_ and reset are below respective thresholds margin disable function max16000 toc13 out_ 2v/div margin 2v/div 100 s/div reset 2v/div out_ and reset are below respective thresholds reference voltage vs. source current source current ( a) v ref (v) max16000 toc14 0 100 200 300 400 500 600 1.220 1.225 1.230 1.235 1.240 1.245 1.250 1.255 1.260 max16005 reference voltage vs. supply voltage supply voltage (v) reference voltage (v) max16000 toc15 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1.220 1.225 1.230 1.235 1.240 1.245 1.250 1.255 1.260 max16005 reference voltage vs. temperature temperature ( c) reference voltage (v) max16000 toc16 -40 -25 -10 5 20 35 50 65 80 95 110 125 1.20 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 max16005 transient duration vs. v cc transient magnitude max16000 toc17 transient magnitude (v cc - v) (mv) maximum transient duration ( s) 1 2 3 4 5 6 7 8 9 10 0 100 1000 reset, out_assert above this line max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 6 maxim integrated
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 7 maxim integrated pin description (max16000/max16001/max16002) pin max16000 max16001 max16002 name function 1 1 1 in3 monitored input voltage 3. see table 1 for the input voltage threshold. 2 2 2 in4 monitored input voltage 4. see table 1 for the input voltage threshold. 3 4 4 gnd ground 45 5 v cc unmonitored power-supply input 5 6 out3 o utp ut 3. when the vol tag e at in 3 fal l s b el ow i ts thr eshol d , ou t3 g oes l ow and stays l ow unti l the vol tag e at in 3 exceed s i ts thr eshol d . the op en- d r ai n outp ut has a 30a i nter nal p ul l up to v c c . 6 7 out4 o utp ut 4. when the vol tag e at in 4 fal l s b el ow i ts thr eshol d , ou t4 g oes l ow and stays l ow unti l the vol tag e at in 4 exceed s i ts thr eshol d . the op en- d r ai n outp ut has a 30a i nter nal p ul l up to v c c . 7108 margin active-low manual deassert input. pull margin low to deassert all outputs (go into high state), regardless of the voltage at any monitored input. 8 11 out2 o utp ut 2. when the vol tag e at in 2 fal l s b el ow i ts thr eshol d , ou t2 g oes l ow and stays l ow unti l the vol tag e at in 2 exceed s i ts thr eshol d . the op en- d r ai n outp ut has a 30a i nter nal p ul l up to v c c . 9 12 out1 o utp ut 1. when the vol tag e at in 1 fal l s b el ow i ts thr eshol d , ou t1 g oes l ow and stays l ow unti l the vol tag e at in 1 exceed s i ts thr eshol d . the op en- d r ai n outp ut has a 30a i nter nal p ul l up to v c c . 10 14 10 in1 monitored input voltage 1. see table 1 for the input voltage threshold. 11 15 11 in2 monitored input voltage 2. see table 1 for the input voltage threshold. 12 16 12 tol threshold tolerance input. connect tol to gnd to select 5% threshold tolerance. connect tol to v cc to select 10% threshold tolerance. 3 3 wdi watchdog timer input. if wdi remains low or high for longer than the watchdog timeout period, reset is asserted. the timer clears whenever a reset is asserted or a rising or falling edge on wdi is detected. the watchdog timer enters a startup period that allows 54s for the first transition to occur before a reset. leave wdi unconnected to disable the watchdog timer. the wdi open-state detector uses a small 400na current. therefore, do not connect wdi to anything that will source or sink more than 200na. note that the leakage current specification for most three-state drivers exceeds 200na. 8 6 mr active-low manual reset input. pull mr low to assert reset low. reset remains low for the reset timeout period after mr is deasserted. mr is pulled up to v cc through a 20k ? resistor. 9 7 srt set reset timeout input. connect a capacitor from srt to gnd to set the reset timeout period. the reset timeout period can be calculated as follows: reset timeout (s) = 2.06 x 10 6 ( ? ) x c srt (f). for the internal timeout period of 140ms (min), connect srt to v cc . 13 9 reset active-low reset output. reset asserts low when any of the monitored voltages falls below its respective threshold or mr is asserted. reset remains asserted for the reset timeout period after all monitored voltages exceed their respective thresholds and mr is deasserted. this open-drain output has a 30a internal pullup. ep exposed pad. ep is internally connected to gnd. connect ep to the ground plane to provide a low thermal resistance path from the ic junction to the pcb. do not use as the electrical connection to gnd.
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 8 maxim integrated pin description (max16003/max16004/max16005) pin max16003 max16004 max16005 tssop max16005 tqfn name function 1 1 3 1 in4 monitored input voltage 4. see table 1 for the input voltage threshold. 2 2 4 2 in5 monitored input voltage 5. see table 1 for the input voltage threshold. 3 3 5 3 in6 monitored input voltage 6. see table 1 for the input voltage threshold. 4 5 7 5 gnd ground 568 6 v cc unmonitored power-supply input 6 7 out4 output 4. when the voltage at in4 falls below its threshold, out4 goes low and stays low until the voltage at in4 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 7 8 out5 output 5. when the voltage at in5 falls below its threshold, out5 goes low and stays low until the voltage at in5 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 8 9 out6 output 6. when the voltage at in6 falls below its threshold, out6 goes low and stays low until the voltage at in6 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 9121311 margin manual deassert input. pull margin low to deassert all outputs (go into high state), regardless of the voltage at any monitored input. 10 13 out3 output 3. when the voltage at in3 falls below its threshold, out3 goes low and stays low until the voltage at in3 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 11 14 out2 output 2. when the voltage at in2 falls below its threshold, out2 goes low and stays low until the voltage at in2 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 12 15 out1 output 1. when the voltage at in1 falls below its threshold, out1 goes low and stays low until the voltage at in1 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 13 17 15 13 in1 monitored input voltage 1. see table 1 for the input voltage threshold. 14 18 16 14 in2 monitored input voltage 2. see table 1 for the input voltage threshold. 15 19 1 15 in3 monitored input voltage 3. see table 1 for the input voltage threshold.
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 9 maxim integrated pin max16003 max16004 max16005 tssop max16005 tqfn name function 16 20 2 16 tol threshold tolerance input. connect tol to gnd to select 5% threshold tolerance. connect tol to v cc to select 10% threshold tolerance. 4 6 4 wdi watchdog timer input. max16004: if wdi remains low or high for longer than the watchdog timeout period, reset is asserted and the timer is cleared. the timer also clears whenever a reset is asserted or a rising or falling edge on wdi is detected. the watchdog timer enters a startup period that allows 54s for the first transition to occur before a reset. leave wdi unconnected to disable the watchdog timer. max16005: if wdi remains low or high for longer than the watchdog timeout period, wdo is asserted. the timer clears whenever a rising or falling edge on wdi is detected. leave wdi unconnected to disable the watchdog timer. the max16005 does not have a startup period. max16004/max16005: the wdi open-state detector uses a small 100na current. therefore, do not connect wdi to anything that will source or sink more than 50na. note that the leakage current specification for most three-state drivers exceeds 50na. 1011 9 mr active-low manual reset input. pull mr low to assert reset low. reset remains low for the reset timeout period after mr is deasserted. mr is pulled up to v cc through a 20k ? resistor. 11 12 10 srt set reset timeout input. connect a capacitor from srt to gnd to set the reset timeout period. the reset timeout period can be calculated as follows: reset timeout (s) = 2.06 x 10 6 ( ? ) x c srt (f). for the internal timeout period of 140ms (min), connect srt to v cc . 1614 12 reset active-low reset output. reset asserts low when any of the monitored voltages falls below its respective threshold or mr is asserted. reset remains asserted for the reset timeout period after all monitored voltages exceed their respective thresholds and mr is deasserted. this open-drain output has a 30a internal pullup. 9 7 ref reference output. the reference output voltage of 1.23v can source up to 40a. 10 8 wdo active-low watchdog output. wdo asserts and stays low whenever any of the in_ inputs fall below their respective thresholds. wdo deasserts without a timeout delay when all the in_ inputs rise above their thresholds. when all the in_ inputs rise above their thresholds, wdo asserts low whenever the watchdog timer times out. wdo deasserts after a valid wdi transition or if mr is pulled low. the watchdog timer begins counting after the reset timeout period once mr goes high. pull margin low to deassert wdo . ep exposed pad. ep is internally connected to gnd. connect ep to the ground plane to provide a low thermal resistance path from the ic junction to the pcb. do not use as the electrical connection to gnd. pin description (max16003/max16004/max16005) (continued)
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 10 maxim integrated pin description (max16006/max16007) pin max16006 max16007 name function 1 1 in5 monitored input voltage 5. see table 1 for the input voltage threshold. 2 2 in6 monitored input voltage 6. see table 1 for the input voltage threshold. 3 3 in7 monitored input voltage 7. see table 1 for the input voltage threshold. 4 4 in8 monitored input voltage 8. see table 1 for the input voltage threshold. 5 5 wdi watchdog timer input. if wdi remains low or high for longer than the watchdog timeout period, reset is asserted and the timer is cleared. the timer also clears whenever a reset is asserted or a rising or falling edge on wdi is detected. the watchdog timer enters a startup period that allows 54s for the first transition to occur before a reset. leave wdi unconnected to disable the watchdog timer. the wdi open-state detector uses a small 400na current. therefore, do not connect wdi to anything that will source or sink more than 200na. note that the leakage current specification for most three- state drivers exceeds 200na. 6 6 gnd ground 77 v cc unmonitored power-supply input 8 out5 output 5. when the voltage at in5 falls below its threshold, out5 goes low and stays low until the voltage at in5 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 9 out6 output 6. when the voltage at in6 falls below its threshold, out6 goes low and stays low until the voltage at in6 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 10 out7 output 7. when the voltage at in7 falls below its threshold, out7 goes low and stays low until the voltage at in7 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 11 out8 output 8. when the voltage at in8 falls below its threshold, out8 goes low and stays low until the voltage at in8 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 12 10 mr active-low manual reset input. pull mr low to assert reset low. reset remains low for the reset timeout period after mr is deasserted. mr is pulled up to v cc through a 20k ? resistor. 13 11 srt set reset timeout input. connect a capacitor from srt to gnd to set the reset timeout period. the reset timeout period can be calculated as follows: reset timeout (s) = 2.06 x 10 6 ( ? ) x c srt (f). for the internal timeout period of 140ms (min), connect srt to v cc .
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 11 maxim integrated pin description (max16006/max16007) (continued) pin max16006 max16007 name function 14 12 margin margin disable input. pull margin low to deassert all outputs (go into high state), regardless of the voltage at any monitored input. 15 out4 output 4. when the voltage at in4 falls below its threshold, out4 goes low and stays low until the voltage at in4 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 16 out3 output 3. when the voltage at in3 falls below its threshold, out3 goes low and stays low until the voltage at in3 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 17 out2 output 2. when the voltage at in2 falls below its threshold, out2 goes low and stays low until the voltage at in2 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 18 out1 output 1. when the voltage at in1 falls below its threshold, out1 goes low and stays low until the voltage at in1 exceeds its threshold. the open-drain output has a 30a internal pullup to v cc . 19 15 reset active-low reset output. reset asserts low when any of the monitored voltages falls below its respective threshold or mr is asserted. reset remains asserted for the reset timeout period after all monitored voltages exceed their respective thresholds and mr is deasserted. this open-drain output has a 30a internal pullup. 20 16 in1 monitored input voltage 1. see table 1 for the input voltage threshold. 21 17 in2 monitored input voltage 2. see table 1 for the input voltage threshold. 22 18 in3 monitored input voltage 3. see table 1 for the input voltage threshold. 23 19 in4 monitored input voltage 4. see table 1 for the input voltage threshold. 24 20 tol threshold tolerance input. connect tol to gnd to select 5% threshold tolerance. connect tol to v cc to select 10% threshold tolerance. 8, 9, 13, 14 n.c. not internally connected ep e xp osed p ad . e p i s i nter nal l y connected to gn d . c onnect e p to the g r ound p l ane to p r ovi d e a l ow ther m al r esi stance p ath fr om the ic j uncti on to the p c b. d o not use as the el ectr i cal connecti on to g n d .
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 12 maxim integrated table 1. input-voltage-threshold selector part in1 in2 in3 in4 in5 in6 in7 in8 max16000a 3.3 2.5 adj 1.8 max16000b 3.3 adj adj 1.8 max16000c adj 2.5 adj 1.8 max16000d 3.3 2.5 adj adj max16000e adj adj adj adj max16001a 3.3 2.5 adj 1.8 max16001b 3.3 adj adj 1.8 max16001c adj 2.5 adj 1.8 max16001d 3.3 2.5 adj adj max16001e adj adj adj adj max16002a 3.3 2.5 adj 1.8 max16002b 3.3 adj adj 1.8 max16002c adj 2.5 adj 1.8 max16002d 3.3 2.5 adj adj max16002e adj adj adj adj max16003a 3.3 2.5 adj 1.8 adj adj max16003b 3.3 adj adj 1.8 adj adj max16003c 3.3 2.5 adj adj adj adj max16003d adj 2.5 adj 1.8 adj adj max16003e adj adj adj adj adj adj max16004a 3.3 2.5 adj 1.8 adj adj max16004b 3.3 adj adj 1.8 adj adj max16004c 3.3 2.5 adj adj adj adj max16004d adj 2.5 adj 1.8 adj adj max16004e adj adj adj adj adj adj max16005a 3.3 2.5 adj 1.8 adj adj max16005b 3.3 adj adj 1.8 adj adj max16005c 3.3 2.5 adj adj adj adj max16005d adj 2.5 adj 1.8 adj adj max16005e adj adj adj adj adj adj max16006a 3.3 2.5 adj 1.8 adj adj adj adj max16006b 3.3 adj adj 1.8 adj adj adj adj max16006c 3.3 2.5 adj adj adj adj adj adj max16006d adj 2.5 adj 1.8 adj adj adj adj max16006e adj adj adj adj adj adj adj adj max16006f 5.0 3.3 3.0 2.5 1.8 1.5 1.2 0.9 max16007a 3.3 2.5 adj 1.8 adj adj adj adj max16007b 3.3 adj adj 1.8 adj adj adj adj max16007c 3.3 2.5 adj adj adj adj adj adj max16007d adj 2.5 adj 1.8 adj adj adj adj max16007e adj adj adj adj adj adj adj adj note: other fixed thresholds may be available. contact factory for availability.
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 13 maxim integrated max16000 reference undervoltage lockout v cc in1 out1 out2 out3 out4 margin in2 in3 in4 tol v cc reset circuit output driver en v cc v cc v cc figure 1. max16000d functional diagram functional diagrams
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 14 maxim integrated max16001/ max16002 reference undervoltage lockout v cc in1 (out1) reset (out2) (out3) (out4) margin in2 in3 in4 tol v cc reset circuit watchdog timer circuit output driver en mr srt wdi timing v cc v cc v cc ( ) max16001 only figure 2. max16001d/max16002d functional diagram functional diagrams (continued)
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 15 maxim integrated max16003/ max16004 reference undervoltage lockout v cc in1 out1 (reset) out2 out3 out6 margin ( ) max16004 only in2 in3 in4 tol v cc reset circuit watchdog timer circuit output driver en (mr) (srt) (wdi) timing v cc v cc v cc in5 in6 out4 out5 figure 3. max16003c/max16004c functional diagram functional diagrams (continued)
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 16 maxim integrated max16005 reference undervoltage lockout v cc in1 reset margin ref in2 in3 in4 tol v cc reset circuit watchdog timer circuit output driver en mr srt wdi wdo timing v cc v cc v cc in5 in6 figure 4. max16005c functional diagram functional diagrams (continued)
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 17 maxim integrated max16006/ max16007 reference undervoltage lockout v cc in1 margin ( ) max16006 only in2 in3 in4 tol v cc reset circuit watchdog timer circuit output driver en mr srt wdi timing v cc v cc in5 in6 in7 in8 (out1) reset (out2) (out3) out8 v cc (out4) (out5) (out6) (out7) figure 5. max16006c/max16007c functional diagram functional diagrams (continued)
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 18 maxim integrated detailed description the max16000Cmax16007 are low-voltage, quad-/hex-/ octal-voltage p supervisors in small tqfn and tssop packages. these devices provide supervisory functions for complex multivoltage systems. the max16000/ max16001/max16002 monitor four voltages, the max16003/max16004/max16005 monitor six voltages, and the max16006/max16007 monitor eight voltages. the max16000/max16001/max16003/max16004/ max16006 offer independent outputs for each moni- tored voltage. the max16001/max16002/max16004C max16007 offer a reset output that asserts whenever any of the monitored voltages fall below their respective thresholds or the manual reset input is asserted. the reset output remains asserted for the reset timeout after all voltages are above their respective thresholds and the manual reset input is deasserted. the minimum reset timeout is internally set to 140ms or can be adjusted with an external capacitor. all open-drain outputs have internal 30a pullups that eliminate the need for external pullup resistors. however, each output can be driven with an external voltage up to 5.5v. other features offered include a manual reset input, a tolerance pin for selecting 5% or 10% input thresholds, and a margin enable function for deasserting the outputs during margin testing. the max16001/max16002/max16004Cmax16007 offer a watchdog timer that asserts reset or an indepen- dent watchdog output (max16005) when the watchdog timeout period (1.6s typ) is exceeded. the watchdog timer can be disabled by leaving input open. applications information undervoltage-detection circuit the open-drain outputs of the max16000Cmax16007 can be configured to detect an undervoltage condition. figure 6 shows a configuration where an led turns on when the comparator output is low, indicating an undervoltage condition. these devices can also be used in applications such as system supervisory moni- toring, multivoltage level detection, and v cc bar-graph monitoring (figure 7). tolerance (tol) the max16000Cmax16007 feature a pin-selectable threshold tolerance. connect tol to gnd to select 5% threshold tolerance. connect tol to v cc to select 10% threshold tolerance. window detection a window detector circuit uses two auxiliary inputs in the configuration shown in figure 8. external resistors set the two threshold voltages of the window detector circuit. external logic gates create the out signal. the window detection width is the difference between the threshold voltages (figure 9). max16000 max16001 gnd v cc in1 v1 5v v2 v3 v4 out1 in2 in3 in4 out2 out3 out4 figure 6. quad undervoltage detector with led indicators max16000 max16001 gnd d2 v cc in1 v in (5v) 5v out1 in2 in3 in4 out2 out3 out4 d1 d3 d4 figure 7. v cc bar-graph monitoring
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 19 maxim integrated adjustable input these devices offer several monitor options with adjustable input thresholds (see table 1). the threshold voltage at each adjustable in_ input is typically 0.394v (tol = gnd) or 0.372 (tol = v cc ). to monitor a voltage v inth , connect a resistive-divider network to the circuit as shown in figure 10. v inth = v th ((r1 / r2) + 1) r1 = r2 ((v inth / v th ) - 1) large resistors can be used to minimize current through the external resistors. for greater accuracy, use lower- value resistors. unused inputs connect any unused in_ inputs to a voltage above its threshold. out_ outputs (max16000/max16001/max16003/ max16004/max16006) the out_ outputs go low when their respective in_ inputs drop below their specified thresholds. the output is open drain with a 30a internal pullup to v cc . for many applications, no external pullup resistor is required to interface with other logic devices. an external pullup resistor to any voltage from 0 to 5.5v overrides the inter- nal pullup if interfacing to different logic supply voltages. internal circuitry prevents reverse current flow from the external pullup voltage to v cc (figure 11). max16000 max16001 gnd v cc in1 5v r2 input r1 out1 in2 in3 out in4 out2 out3 out4 r4 r3 v th1 = ( 1 + r1 ) ( v th + v th_hys ) r2 v th4 = ( 1 + r3 ) v th r4 figure 8. window detection r1 v inth v th r2 r1 = r2 ( v inth ) v th - 1 figure 10. setting the adjustable input ? v th v th4 v th1 out out4 out1 figure 9. output response of window detector circuit
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 20 maxim integrated reset output (max16001/max16002/ max16004?ax16007) reset asserts low when any of the monitored voltages fall below their respective thresholds or mr is asserted. reset remains asserted for the reset timeout period after all monitored voltages exceed their respective thresholds and mr is deasserted (see figure 12). this open-drain output has a 30a internal pullup. an exter- nal pullup resistor to any voltage from 0 to 5.5v overrides the internal pullup if interfacing to different logic supply voltages. internal circuitry prevents reverse current flow from the external pullup voltage to v cc (figure 11). wdo (max16005 only) wdo asserts and stays low whenever any of the in_ inputs fall below their respective thresholds. wdo deasserts without a timeout delay when all the in_ inputs rise above their thresholds. when all the in_ inputs rise above their thresholds, wdo asserts low whenever the watchdog timer times out. wdo deasserts after a valid wdi transition or if mr is pulled low. the watchdog timer begins counting after the reset timeout period once mr goes high. pull margin low to deassert wdo regardless of any other condition. the watchdog timer continues to run when margin is low and if a timeout occurs. wdo will assert mr after margin is deasserted. this open-drain output has a 30a internal pullup. an external pullup resistor to any voltage from 0 to 5.5v overrides the internal pullup if interfacing to different logic supply voltages. internal cir- cuitry prevents reverse current flow from the external pullup voltage to v cc (figure 11). max16001/ max16002/ max16004?max16007 gnd v cc gnd reset v cc 5v out_ v cc = 3.3v 100k ? figure 11. interfacing to a different logic supply voltage in_ 10% 90% 10% 90% reset out_ v th_ t rp t d t d t rd v th_ figure 12. output timing diagram
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 21 maxim integrated reset wdo wdi t rp t max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 22 maxim integrated reset timeout capacitor the reset timeout period can be adjusted to accommo- date a variety of p applications from 50s to 1.12s. adjust the reset timeout period (t rp ) by connecting a capacitor (c srt ) between srt and gnd. calculate the reset timeout capacitor as follows: connect srt to v cc for a factory-programmed reset timeout of 140ms (min). manual reset input (mr) (max16001/max16002/ max16004?ax16007) many p-based products require manual reset capabil- ity, allowing the operator, a test technician, or external logic circuitry to initiate a reset. a logic-low on mr asserts reset low. reset remains asserted while mr is low, and during the reset timeout period (140ms min) after mr returns high. the mr input has an internal 20k ? pullup resistor to v cc , so it can be left uncon- nected if not used. mr can be driven with ttl or cmos-logic levels, or with open-drain/collector out- puts. connect a normally open momentary switch from mr to gnd to create a manual reset function. external debounce circuitry is not required. if mr is driven from long cables or if the device is used in a noisy environ- ment, connecting a 0.1f capacitor from mr to gnd provides additional noise immunity. margin output disable ( margin ) margin allows system-level testing while power sup- plies are adjusted from their nominal voltages. drive margin low to force reset , wdo, and out_ high, regardless of the voltage at any monitored input. the state of each output does not change while margin = gnd. the watchdog timer continues to run when margin is low, and if a timeout occurs, wdo / reset will assert t md after margin is deasserted. the margin input is internally pulled up to v cc . leave margin unconnected or connect to v cc if unused. power-supply bypassing the max16000Cmax16007 operate from a 2.0v to 5.5v supply. an undervoltage lockout ensures that the out- puts are in the correct states when the uvlo is exceed- ed. in noisy applications, bypass v cc to ground with a 0.1f capacitor as close to the device as possible. the additional capacitor improves transient immunity. for v cc transients with high slew rates, place an rc low- pass filter in front of v cc , where r can be up to 100 ? . cf tsxi v srt rp srt th srt () () _ = margin reset internal reset signal t rp t rp v th v th + v th_hyst v th + v th_hyst v in figure 15. margin output disable ( margin ) affect on reset outside t rp
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 23 maxim integrated pin configurations 12 11 10 4 5 in4 gnd 6 in3 out2 margin out1 12 in2 3 987 tol + + out4 out3 v cc max16000 in1 tqfn (4mm x 4mm) top view 12 11 10 4 5 in4 wdi 6 in3 srt margin reset 12 in2 3 987 tol + mr gnd v cc max16002 in1 tqfn (4mm x 4mm) top view 15 16 14 13 6 5 7 in4 gnd 8 in3 out2 srt out1 12 in1 4 12 11 9 in2 tol mr out4 out3 v cc max16001 wdi margin 3 10 reset tqfn (4mm x 4mm) top view + 15 16 14 13 6 5 7 in5 gnd 8 in4 out2 out1 12 in2 4 12 11 9 in3 tol out5 out4 v cc max16003 in6 margin 3 10 in1 out6 tqfn (4mm x 4mm) top view out3
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 24 maxim integrated pin configurations (continued) + + + 15 16 14 13 6 5 7 in5 wdi 8 in4 margin mr reset 12 in2 4 12 11 9 in3 tol wdo ref v cc gnd max16005 in6 srt 3 10 in1 tqfn (4mm x 4mm) top view 19 20 18 17 7 6 8 in5 wdi gnd 9 in4 out2 margin srt out1 12 in2 45 15 14 12 11 in3 tol out6 out5 out4 v cc max16004 in6 out3 3 13 in1 16 10 mr reset tqfn (4mm x 4mm) top view margin srt + 19 20 18 17 7 6 8 in6 in8 wdi 9 in5 n.c. margin srt reset 12 in3 45 15 14 12 11 in4 tol n.c. n.c. v cc gnd max16007 in7 n.c. 3 13 in2 16 10 mr in1 tqfn (4mm x 4mm) top view 23 24 22 21 8 7 9 in6 in8 wdi gnd 10 in5 12 in3 456 17 18 16 14 13 in4 tol out7 out6 out5 v cc max16006 in7 3 15 in2 20 11 out8 in1 19 12 mr reset tqfn (4mm x 4mm) top view out2 out1 out3 out4 16 15 14 13 12 11 10 1 2 3 4 5 6 7 in2 in1 reset margin in5 in4 tol in3 top view max16005 srt mr wdo gnd wdi 9 8 ref vcc in6 tssop +
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors 25 maxim integrated chip information process: bicmos ordering information (continued) part temp range pin-package max16001 _te+ -40 c to +125 c 16 tqfn-ep* max16001_te/v+ -40 c to +125 c 16 tqfn-ep* max16002 _tc+ -40 c to +125 c 12 tqfn-ep* max16003 _te+ -40 c to +125 c 16 tqfn-ep* max16004 _tp+ -40 c to +125 c 20 tqfn-ep* max16005 _te+ -40 c to +125 c 16 tqfn-ep* max16005_ue+ -40 c to +125 c 16 tssop max16006 _tg+ -40 c to +125 c 24 tqfn-ep* max16007 _tp+ -40 c to +125 c 20 tqfn-ep* note: the _ is a placeholder for the input voltage threshold. see table 1. + denotes a lead(pb)-free/rohs-compliant package. for tape-and-reel, add a t after the +. tape-and-reel are offered in 2.5k increments. * ep = exposed pad. /v denotes an automotive qualified part. part monitored voltages independent outputs reset wdi/ wdo mr adjustable reset timeout max16000 4 4 max16001 4 4 ? wdi ?? max16002 4 ? wdi ?? max16003 6 6 max16004 6 6 ? wdi ?? max16005 6 ? wdi/ wdo ?? max16006 8 8 ? wdi ?? max16007 8 ? wdi ?? selector guide package type package code outline no. land pattern no. 12 tqfn-ep t1244+4 21-0139 90-0068 16 tssop u16+2 21-0066 90-0117 16 tqfn-ep t1644+4 21-0139 90-0070 20 tqfn-ep t2044+3 21-0139 90-0037 24 tqfn-ep t2444+4 21-0139 90-0022 package information for the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing per tains to the package regardless of rohs status.
max16000?ax16007 low-voltage, quad-/hex-/octal-voltage ? supervisors maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidanc e. 26 _______________________________ maxim integrated 160 rio robles, san jose, ca 95134 usa 1-408-601-1000 ? 2012 maxim integrated the maxim logo and maxim integrated are trademarks of maxim integrated products, inc. revision history revision number revision date description pages changed 0 12/05 initial release 1 1/06 released max16003 and max16004. 20, 21 2 7/06 released max16005. updated pin description and detailed description . 1, 4, 7, 9, 10, 20, 21 3 12/08 added the max16005 tssop package. modified the detailed description , and added figures 13, 14, and 15. 1, 2, 7, 8, 9, 10, 20C26 4 8/10 revised the absolute maximum ratings and the power-supply bypassing sections. 2, 22 5 10/10 added new graph to the typical operating characteristics .6 6 9/12 added automotive qualified part to ordering information .25

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