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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 monitored 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 independent 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 -40c to +125c. applications storage equipment servers networking/telecommunication equipment multivoltage asics beneits and 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) selector guide appears at end of data sheet. ordering information continued at end of data sheet. 19-3870; rev 7; 4/16 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. part temp range pin-package max16000_ tc+ -40c to +125c 12 tqfn-ep* 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 rsti/o nmi in2in3 in4 in5 in6 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors typical operating circuit ordering information downloaded from: http:///
v cc , out_, in_, reset , wdo to gnd ................-0.3v to +6v tol, margin , mr , srt, wdi, to gnd ...... -0.3v to vcc + 0.3 input/output current ( reset , margin , srt, mr , tol, out_, wdo , wdi) .............................20ma continuous power dissipation (ta = +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 (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 operating voltage range v cc (note 2) 1.0 5.5 v supply current i cc v cc = 3.3v, out_, reset not asserted (note 3) 45 65 a v cc = 5v, out_, reset not asserted 50 70 uvlo (undervoltage lockout) v uvlo v cc rising 1.62 1.8 1.98 v in_ (see table 1) threshold voltages (in_ falling) v th 5v threshold, tol = gnd 4.50 4.625 4.75 v 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 0.9v threshold, tol = v cc 0.765 0.788 0.810 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 2 absolute maximum ratings stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. electrical characteristics downloaded from: http:/// (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 adjustable threshold (in_ falling) v th tol = gnd 0.388 0.394 0.400 v tol = v cc 0.366 0.372 0.378 in_ hysteresis v th_hys in_ rising 0.5 % v th in_ input current fixed thresholds 3 16 a adjustable thresholds -100 +100 na reset reset timeout t rp srt = v cc 140 200 280 ms c srt = 1500pf (note 4) 2.43 3.09 3.92 c srt = 100pf 0.206 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 reset output-voltage low v ol v cc = 3.3v, i sink = 10ma, reset asserted 0.30 v v cc = 2.5v, i sink = 6ma, reset asserted 0.30 v cc = 1.2v, i sink = 50a, reset asserted 0.30 reset output-voltage high v oh v cc 2.0v, isource = 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 1 s 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_ ) out_ output-voltage low v ol v cc = 3.3v, i sink = 2ma 0.30 v v cc = 2.5v, i sink = 1.2ma 0.30 out_ output-voltage high v oh v cc r 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 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 3 electrical characteristics (continued) downloaded from: http:/// (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. 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/max16004Cmax16007) 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 wdo output-voltage low (max16005 only) v ol v cc = 3.3v, i sink = 2ma 0.30 v v cc = 2.5v, i sink = 1.2ma 0.30 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 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 4 electrical characteristics (continued) downloaded from: http:/// (v cc = 3.3v, t a = +25c, unless otherwise noted.) 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 supply voltage (v) normalized threshold max16000 toc03 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 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 0 1 2 3 4 5 6 7 8 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 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 lowabove this line 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 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 reset timeout delay max16000 toc09 out12v/div in15v/div 40ms/div reset2v/div srt = v cc max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors maxim integrated 5 www.maximintegrated.com typical operating characteristics downloaded from: http:/// (v cc = 3.3v, t a = +25c, unless otherwise noted.) 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/div margin2v/div 100s/div reset2v/div out_ and reset arebelow respective thresholds margin disable function max16000 toc13 out_2v/div margin2v/div 100s/div reset2v/div out_ and reset are below respectivethresholds 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_assertabove this line 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) max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors maxim integrated 6 www.maximintegrated.com typical operating characteristics (continued) downloaded from: http:/// pin name function max16000max16001 max16002 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 4 5 5 v cc unmonitored power-supply input. bypass v cc with a 0.1f capacitor to ground. see power supply bypassing section for more detail. 5 6 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 . 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 10 8 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 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 . 9 12 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 . 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 irst 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 speciication 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. max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 7 pin description (max16000/max16001/max16002) downloaded from: http:/// pin name function max16003max16004 max16005 tssop max16005 tqfn 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 5 6 8 6 v cc unmonitored power-supply input. bypass v cc with a 0.1f capacitor to ground. see power supply bypassing section for more detail. 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 . 9 12 13 11 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. max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 8 pin description (max16003/max16004/max16005) downloaded from: http:/// pin name function max16003max16004 max16005 tssop max16005 tqfn 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 irst 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 speciication for most three-state drivers exceeds 50na. 10 11 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 . 16 14 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. max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 9 pin description (max16003/max16004/max16005) (continued) downloaded from: http:/// pin name function max16006max16007 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 54 s for the irst 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 speciication for most three- state drivers exceeds 200na. 6 6 gnd ground 7 7 v cc unmonitored power-supply input. bypass v cc with a 0.1f capacitor to ground. see power supply bypassing section for more detail. 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 . max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 10 pin description (max16006/max16007) downloaded from: http:/// pin name function max16006max16007 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 exposed pad. ep is internally connected to gnd. connect ep to the ground plane to provide a low ther mal resistance path from the ic junction to the pcb. do not use as the electrical connection to gnd. max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 11 pin description (max16006/max16007) (continued) downloaded from: http:/// table 1. input-voltage-threshold selector note: other fixed thresholds may be available. contact factory for availability. 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 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 12 downloaded from: http:/// figure 1. max16000d functional diagram max16000 reference undervoltage lockout v cc in1 out1out2 out3 out4 margin in2in3 in4 tol v cc reset circuit output driver en v cc v cc v cc max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 13 functional diagrams downloaded from: http:/// figure 2. max16001d/max16002d functional diagram max16001/max16002 reference undervoltage lockout v cc in1 (out1) reset(out2) (out3) (out4) margin in2in3 in4 tol v cc reset circuit watchdog timer circuit output driver en mr srt wdi timing v cc v cc v cc ( ) max16001 only max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 14 functional diagrams (continued) downloaded from: http:/// figure 3. max16003c/max16004c functional diagram max16003/max16004 reference undervoltage lockout v cc in1 out1 (reset)out2 out3 out6 margin ( ) max16004 only in2in3 in4 tol v cc reset circuit watchdog timer circuit output driver en (mr) (srt) (wdi) timing v cc v cc v cc in5in6 out4out5 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 15 functional diagrams (continued) downloaded from: http:/// figure 4. max16005c functional diagram max16005 reference undervoltage lockout v cc in1 reset margin ref in2in3 in4 tol v cc reset circuit watchdog timer circuit output driver en mr srt wdi wdo timing v cc v cc v cc in5in6 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 16 functional diagrams (continued) downloaded from: http:/// figure 5. max16006c/max16007c functional diagram max16006/max16007 reference undervoltage lockout v cc in1 margin ( ) max16006 only in2in3 in4 tol v cc reset circuit watchdog timer circuit output driver en mr srt wdi timing v cc v cc in5in6 in7in8 (out1) reset(out2) (out3) out8 v cc (out4)(out5) (out6) (out7) max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 17 functional diagrams (continued) downloaded from: http:/// 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 monitored 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 independent 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 monitoring, 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 vcc 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 ). figure 6. quad undervoltage detector with led indicators figure 7. v cc bar-graph monitoring max16000max16001 gnd v cc in1 v1 5vv2 v3 v4 out1 in2in3 in4 out2out3 out4 max16000max16001 gnd d2 v cc in1 v in (5v) 5v out1 in2in3 in4 out2out3 out4 d1 d3 d4 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 18 downloaded from: http:/// 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 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 ). figure 8. window detection figure 10. setting the adjustable input figure 9. output response of window detector circuit max16000max16001 gnd v cc in1 5v r2 input r1 out1 in2in3 out in4 out2out3 out4 r4 r3 v th1 = ( 1 + r1 ) ( v th + v th_hys ) r2 v th4 = ( 1 + r3 ) v th r4 r1 v inth v th r2 r1 = r2 ( v inth ) v th - 1 v th v th4 v th1 out out4 out1 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 19 downloaded from: http:/// reset output (max16001/max16002/ max16004Cmax16007) 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 external 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 circuitry prevents reverse current flow from the external pullup voltage to v cc ( figure 11 ). figure 11. interfacing to a different logic supply voltage figure 12. output timing diagram max16001/max16002/ max16004Cmax16007 gnd v cc gnd reset v cc 5v out_ v cc = 3.3v 100k ? in_ 10% 90% 10% 90% reset out_ v th_ t rp t d t d t rd v th_ max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 20 downloaded from: http:/// figure 13. wdo timing related to v th and t rp figure 14. margin output disable ( margin ) affect on reset within t rp reset wdo wdi t rp t 12 11 10 4 5 in4 gnd 6 in3 out2margin out1 1 2 in2 3 9 8 7 tol ++ out4out3 v cc max16000 in1 tqfn (4mm x 4mm) top view 12 11 10 4 5 in4 wdi 6 in3 srt margin reset 1 2 in2 3 9 8 7 tol + mrgnd v cc max16002 in1 tqfn (4mm x 4mm) top view 1516 14 13 65 7 in4 gnd 8 in3 out2srt out1 1 2 in1 4 12 11 9 in2 tol mrout4 out3 v cc max16001 wdi margin 3 10 reset tqfn (4mm x 4mm) top view + 1516 14 13 65 7 in5 gnd 8 in4 out2 out1 1 2 in2 4 12 11 9 in3 tol out5out4 v cc max16003 in6 margin 3 10 in1 out6 tqfn (4mm x 4mm) top view out3 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 23 pin conigurations downloaded from: http:/// + + + 1516 14 13 65 7 in5 wdi 8 in4 marginmr reset 1 2 in2 4 12 11 9 in3 tol wdoref v cc gnd max16005 in6 srt 3 10 in1 tqfn (4mm x 4mm) top view 1920 18 17 76 8 in5 wdi gnd 9 in4 out2margin srt out1 1 2 in2 4 5 15 14 12 11 in3 tol out6out5 out4 v cc max16004 in6 out3 3 13 in1 16 10 mr reset tqfn (4mm x 4mm) top view marginsrt + 1920 18 17 76 8 in6in8 wdi 9 in5 n.c.margin srt reset 1 2 in3 4 5 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 2324 22 21 87 9 in6in8 wdi gnd 10 in5 1 2 in3 4 5 6 17 18 16 14 13 in4 tol out7out6 out5 v cc max16006 in7 3 15 in2 20 11 out8 in1 19 12 mr reset tqfn (4mm x 4mm) top view out2 out1out3 out4 1615 14 13 12 11 10 1 23 45 6 7 in2in1 reset margin in5 in4 tol in3 top view max16005 srt mr wdo gnd wdi 9 8 ref vcc in6 tssop + max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 24 pin conigurations (continued) downloaded from: http:/// 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 temp range pin-package max16001 _te+ -40c to +125c 16 tqfn-ep* max16001_te/v -40c to +125c 16 tqfn-ep* max16002_ tc+ -40c to +125c 12 tqfn-ep* max16003 _te+ -40c to +125c 16 tqfn-ep* max16004_ tp+ -40c to +125c 20 tqfn-ep* max16005_ te+ -40c to +125c 16 tqfn-ep* max16005_ue+ -40c to +125c 16 tssop max16006 _tg+ -40c to +125c 24 tqfn-ep* max16007 _tp+ -40c to +125c 20 tqfn-ep* 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 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 max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors www.maximintegrated.com maxim integrated 25 chip information process: bicmos 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 su ffix character, but the drawing pertains to the package regardless of rohs status. ordering information (continued)selector guide downloaded from: http:/// 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. modiied 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 qualiied part to ordering information . 25 7 4/16 updated pin coniguration table 7, 8, 10 maxim integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim integrated product. no circuit patent licenses are implied. maxim integrated reserves the right to change the circuitry and speciications without n otice 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 guidance. maxim integrated and the maxim integrated logo are trademarks of maxim integrated products, inc. max16000Cmax16007 low-voltage, quad/hex/octal-voltage p supervisors ? 2016 maxim integrated products, inc. 26 revision history for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim integrateds website at www.maximintegrated.com. downloaded from: http:/// |
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