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general description the max6754Cmax6764 low-power window detec - tors monitor undervoltage/overvoltage conditions on system power supplies. these devices assert when the monitored voltage is under the undervoltage and/or over the overvoltage thresholds. the max6754Cmax6759/max6763/max6764 monitor a single voltage. the max6760/max6761/max6762 monitor dual-voltage systems. the max6754/max6755/ max6756 provide a single undervoltage/overvoltage output and the max6757Cmax6764 provide independent undervoltage and overvoltage outputs. the outputs are available in push-pull or open-drain configurations. the max6754Cmax6762 offer factory-fixed voltage thresholds for monitoring system voltages from 0.9v to 5v with a selectable 5%, 10%, or 15% window voltage. the max6763/max6764 allow for externally adjustable thresholds. the max6754Cmax6762 are available in two delay-timing options (20s, typ or 100ms, min). the max6760/max6761/max6762 also include a latched overvoltage output function and the max6754Cmax6762 include a manual reset input. this family of products is available in small sot23 and tdfn packages, and is specified over the extended temperature range of -40c to +125c. applications telecommunications networking computers/servers data storage power metering dc-dc converter modules automotive beneits and features single/dual-supply voltage monitors factory-trimmed window threshold options for 5v, 3.3v, 3v, 2.5v, 1.8v, 1.5v, 1.2v, and 0.9v supplies externally adjustable window monitoring options for supplies down to 0.5v selectable window threshold options (5%, 10%, 15%) single (combined uv/ov) or dual (separate uv and ov) outputs 20s (typ) or 100ms (min) timeout period options (max6754Cmax6762) manual reset input (max6754Cmax6762) latched overvoltage output function (max6760/max6761/max6762) immune to short voltage transients low 10a supply current low-voltage operation (outputs valid for vcc down to 1v) -40c to +125c operating temperature range small sot23 and tdfn packages 19-3075; rev 8; 6/16 ordering information continued at end of data sheet. pin configurations appears at end of data sheet. insert the threshold level suffixes for v cc and v cc2 (tables 1 and 2) after uk, ut, or ta. for the max6754Cmax6759, insert only the v cc threshold suffix after the uk or ut. insert the reset timeout delay (table 3) after d to complete the part number. for example, the max6760taltd3-t provides a v cc threshold of 5v, a v cc2 threshold of 3.3v, and a 100ms minimum reset timeout period. sample stock is generally held on standard versions only (see the standard versions table). standard versions have an order increment requirement of 2500 pieces. nonstandard versions have an order increment requirement of 10,000 pieces. contact factory for availability. devices are available in both leaded and lead-free packaging. specify lead-free by replacing -t with +t when ordering. part temp range pin-package max6754 uk_d_-t -40c to +125c 5 sot23-5 max6755 uk_d_-t -40c to +125c 5 sot23-5 max6756 uk_d_-t -40c to +125c 5 sot23-5 max6756 uk_d_/v+t* -40c to +125c 5 sot23-5 max6757 ut_d_-t -40c to +125c 6 sot23-6 max6758 ut_d_-t -40c to +125c 6 sot23-6 typical application circuit ordering information max6757 nmireset mr gnd v cc uv ov set v cc p max6754Cmax6764 low-power, single/dual-voltage window detectors downloaded from: http:///
(voltages with respect to gnd.) v cc , v cc2 , ................................................................ -0.3v to +6.5v set, ovlatch, mr , uvin, ovin ................. -0.3v to (v cc + 0.3v) uv , reset , ov (open drain) .................................... -0.3v to +6.5v reset, ov , uv, uv , reset (push-pull) ...... -0.3v to (v cc + 0.3v) input/output current (all pins) .................................................. 20ma continuous power dissipation (t a = +70c) 5-pin sot23-5 (derate 7.1mw/c above t a = +70c) ... 571mw 6-pin sot23-6 (derate 8.7mw/c above t a = +70c) ... 696mw 8-pin tdfn (derate 24.4mw/c above t a = +70c) .... 1951mw operating temperature range ............................... -40c to +125c junction temperature ............................................................ +150c storage temperature range .................................. -65c to +150c lead temperature (soldering, 10s) ....................................... +300c soldering temperature (reflow) lead(pb)-free package .................................................... +260c containing lead(pb) .......................................................... +240c (v cc = 1.0v to 6.0v, v cc2 = 0 to 6.0v (max6760Cmax6762), t a = -40c to +125c, unless otherwise noted. typical values are at t a = +25c.) (note 1) absolute maximum ratingselectrical characteristics 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. parameter symbol conditions min typ max units power requirements operating voltage range v cc (note 2) 1.0 6.0 v max6760taaa/max6761taaa/ max6762taaa/max6763/max6764ut-t 1.4 6.0 v cc supply current i cc v cc = 3.6v, max6754Cmax6759, no load 13 30 a v cc = 3.6v, max6763/max6764, no load 10 23 v cc = 3.6v, v cc v cc2 , max6760/max6761/max6762, no load 13 30 v cc2 supply current i cc2 v cc2 = 1.8v, v cc v cc2 , max6760/max6761/max6762 1 1.5 a adjustable bias current v cc2 (max6760Cmax6762ta_ad_) (note 3) -20 +20 na v cc threshold v cc overvoltage threshold ov th t a = -40c to +125c, rising v cc l, 5v v set = v sb 5.750 5.875 6.000 v set = v cc 5.500 5.625 5.750 set = gnd 5.250 5.375 5.500 t, 3.3v v set = v sb 3.795 3.878 3.960 set = v cc 3.630 3.713 3.795 set = gnd 3.465 3.548 3.630 r, 3.0v v set = v sb 3.450 3.525 3.600 set = v cc 3.300 3.375 3.450 set = gnd 3.150 3.225 3.300 z, 2.5v v set = v sb 2.875 2.938 3.000 set = v cc 2.750 2.813 2.875 set = gnd 2.625 2.688 2.750 w, 1.8v v set = v sb 2.070 2.115 2.160 set = v cc 1.980 2.025 2.070 set = gnd 1.890 1.935 1.980 max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 2 downloaded from: http:///
(v cc = 1.0v to 6.0v, v cc2 = 0 to 6.0v (max6760Cmax6762), t a = -40c to +125c, unless otherwise noted. typical values are at t a = +25c.) (note 1) electrical characteristics (continued) parameter symbol conditions min typ max units v cc undervoltage threshold uv th t a = -40c to +125c, falling v cc l, 5v v set = v sb 4.000 4.125 4.250 v set = v cc 4.250 4.375 4.500 set = gnd 4.500 4.625 4.750 t, 3.3v v set = v sb 2.640 2.723 2.805 set = v cc 2.805 2.888 2.970 set = gnd 2.970 3.053 3.135 r, 3.0v v set = v sb 2.400 2.475 2.550 set = v cc 2.550 2.625 2.700 set = gnd 2.700 2.775 2.850 z, 2.5v v set = v sb 2.000 2.063 2.125 set = v cc 2.125 2.188 2.250 set = gnd 2.250 2.313 2.375 w, 1.8v v set = v sb 1.440 1.485 1.530 set = v cc 1.530 1.575 1.620 set = gnd 1.620 1.665 1.710 v cc2 overvoltage threshold ov th2 t a = -40c to +125c, rising v cc2 t, 3.3v v set = v sb 3.795 3.878 3.960 v set = v cc 3.630 3.713 3.795 set = gnd 3.465 3.548 3.630 r, 3.0v v set = v sb 3.450 3.525 3.600 set = v cc 3.300 3.375 3.450 set = gnd 3.150 3.225 3.300 z, 2.5v v set = v sb 2.875 2.938 3.000 set = v cc 2.750 2.813 2.875 set = gnd 2.625 2.688 2.750 w, 1.8v v set = v sb 2.070 2.115 2.160 set = v cc 1.980 2.025 2.070 set = gnd 1.890 1.935 1.980 i, 1.5v v set = v sb (note 2) 1.725 1.763 1.800 set = v cc (note 2) 1.650 1.688 1.725 set = gnd (note 2) 1.575 1.613 1.650 g, 1.2v v set = v sb (note 2) 1.380 1.410 1.440 set = v cc (note 2) 1.320 1.350 1.380 set = gnd (note 2) 1.260 1.290 1.320 e, 0.9v v set = v sb (note 2) 1.035 1.058 1.080 set = v cc (note 2) 0.990 1.013 1.035 set = gnd (note 2) 0.945 0.968 0.990 adj v set = v sb 0.489 0.500 0.511 set = v cc 0.468 0.479 0.489 set = gnd 0.447 0.457 0.468 max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 3 downloaded from: http:///
(v cc = 1.0v to 6.0v, v cc2 = 0 to 6.0v (max6760Cmax6762), t a = -40c to +125c, unless otherwise noted. typical values are at t a = +25c.) (note 1) electrical characteristics (continued) parameter symbol conditions min typ max units v cc2 undervoltage threshold uv th2 t a = -40c to +125c, falling v cc2 t, 3.3v v set = v sb 2.640 2.723 2.805 v set = v cc 2.805 2.888 2.970 set = gnd 2.970 3.053 3.135 r, 3.0v v set = v sb 2.400 2.475 2.550 set = v cc 2.550 2.625 2.700 set = gnd 2.700 2.775 2.850 z, 2.5v v set = v sb 2.000 2.063 2.125 set = v cc 2.125 2.188 2.250 set = gnd 2.250 2.313 2.375 w, 1.8v v set = v sb 1.440 1.485 1.530 set = v cc 1.530 1.575 1.620 set = gnd 1.620 1.665 1.710 i, 1.5v v set = v sb (note 2) 1.200 1.238 1.275 set = v cc (note 2) 1.275 1.313 1.350 set = gnd (note 2) 1.350 1.388 1.425 g, 1.2v v set = v sb (note 2) 0.960 0.990 1.020 set = v cc (note 2) 1.020 1.050 1.080 set = gnd (note 2) 1.080 1.110 1.140 e, 0.9v v set = v sb (note 2) 0.720 0.743 0.765 set = v cc (note 2) 0.765 0.788 0.810 set = gnd (note 2) 0.810 0.833 0.855 adj v set = v sb 0.340 0.351 0.362 set = v cc 0.362 0.372 0.383 set = gnd 0.383 0.394 0.404 threshold hysteresis v hyst v cc , v cc2 0.7 % undervoltage/overvoltage inputs (uvin, ovin) (max6763/max6764) uvin, ovin threshold voltage v th-in 0.485 0.5 0.515 v uvin, ovin input bias current i in (note 3) -20 +20 na uvin, ovin threshold hysteresis v hyst 0.7 % max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 4 downloaded from: http:///
(v cc = 1.0v to 6.0v, v cc2 = 0 to 6.0v (max6760Cmax6762), t a = -40c to +125c, unless otherwise noted. typical values are at t a = +25c.) (note 1) electrical characteristics (continued) parameter symbol conditions min typ max units timing characteristics reset and uv timeout period t rp figure 7 d0 20 s d3 100 185 320 ms v cc to reset delay t d-reset v cc /v cc2 falling at 10mv/s from uv th + 100mv to uv th - 100mv 20 s v cc to uv delay t d-uv v cc /v cc2 rising at 10mv/s from ov th - 100mv to ov th + 100mv 20 s v cc to ov delay t d-ov v cc /v cc2 rising at 10mv/s from ov th - 100mv to ov th + 100mv (max6757Cmax6762 only) 20 s uvin to uv delay (max6763/max6764) 20 s ovin to ov delay (max6763/max6764) 20 s startup delay time t start d0 options only, ov output (note 4) 2 ms threshold window select input (set) input-voltage low 0 0.1 v input bias voltage (note 5) v sb v cc = 1.4v 0.65 0.75 v v cc = 3.0v 0.81 2.19 v cc = 6.0v 1.10 4.90 input-voltage high v cc - 0.1 v cc v input current i set -1 +1 a manual reset ( mr ) input-voltage low 0.23 x v cc v input-voltage high 0.6 x v cc v pullup resistance to v cc 26 k? minimum pulse width 4 s transient immunity 300 ns propagation delay t d-mr mr falling, figure 7 300 ns t mr_p mr rising, figure 7 d0 40 d3 100 185 320 ms overvoltage output latch control input (ovlatch) input-voltage low 0.3 x v cc v input-voltage high 0.7 x v cc v max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 5 downloaded from: http:///
(v cc = 1.0v to 6.0v, v cc2 = 0 to 6.0v (max6760Cmax6762), t a = -40c to +125c, unless otherwise noted. typical values are at t a = +25c.) (note 1) electrical characteristics (continued) parameter symbol conditions min typ max units input bias current i ovlatch -1 +1 a reset, reset , uv , uv, ov reset , uv output low (open drain or push-pull) v ol any v cc 1.0v, i sink = 100a, output asserted 0.3 v any v cc 1.2v, i sink = 200a, output asserted 0.3 any v cc 1.71v, i sink = 1.0ma, output asserted 0.3 any v cc 2.85v, i sink = 2.0ma, output asserted 0.3 any v cc 4.75v, i sink = 4.0ma, output asserted 0.3 reset , uv output high (push-pull) v oh any v cc 1.71v, i source = 0.8ma, output deasserted 0.8 x v cc v any v cc 2.85v, i source = 2.0ma, output deasserted 0.8 x v cc any v cc 4.75v, i source = 4.0ma, output deasserted 0.8 x v cc reset, uv output low (push-pull) v ol any v cc 1.71v, i sink = 1.0ma, output deasserted 0.3 v any v cc 2.85v, i sink = 2.0ma, output deasserted 0.3 any v cc 4.75v, i sink = 4.0ma, output deasserted 0.3 reset, uv output high (push-pull) v oh any v cc 1.0v, i source = 50a, output asserted 0.8 x v cc v any v cc 1.2v, i source = 100a, output asserted 0.8 x v cc any v cc 1.71v, i source = 0.8ma, output asserted 0.8 x v cc any v cc 2.85v, i source = 2.0ma, output asserted 0.8 x v cc any v cc 4.75v, i source = 4.0ma, output asserted 0.8 x v cc max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 6 downloaded from: http:///
(v cc = 1.0v to 6.0v, v cc2 = 0 to 6.0v (max6760Cmax6762), t a = -40c to +125c, unless otherwise noted. typical values are at t a = +25c.) (note 1) note 1: devices are production tested at +25c. overtemperature limits are guaranteed by design. note 2: voltage monitoring requires that v cc must be greater than or equal to 1.4v, but outputs remain asserted in the correct state for v cc down to 1.0v. note 3: guaranteed by design. note 4: for d0 window detector options and ov outputs, startup delay time is the time required for the internal reference/circuitry to reach specified accuracy after the monitor is powered up from gnd. note 5: the input bias voltage is based off of v cc . the minimum value is given by the equation (0.1 x v cc + 0.51)v and the maxi - mum value is given by (0.9 x v cc - 0.51)v. electrical characteristics (continued) parameter symbol conditions min typ max units ov output low (open-drain orpush-pull) v ol any v cc 1.98v, i sink = 1.4ma, output asserted 0.3 v any v cc 2.75v, i sink = 2.0ma, output asserted 0.3 any v cc 3.63v, i sink = 3.0ma, output asserted 0.3 any v cc 5.5v, i sink = 4.0ma, output asserted 0.3 ov output high (push-pull) v oh any v cc 1.0v, i source = 50a, output deasserted 0.8 x v cc v any v cc 1.2v, i source = 100a, output deasserted 0.8 x v cc any v cc 1.98v, i source = 1.4ma, output deasserted 0.8 x v cc any v cc 2.75v, i source = 2.0ma, output deasserted 0.8 x v cc any v cc 3.63v, i source = 3.0ma, output deasserted 0.8 x v cc any v cc 5.5v, i source = 4.5ma, output deasserted 0.8 x v cc reset , uv , ov output open- drain leakage current i lkg output not asserted 1 a max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 7 downloaded from: http:///
(v cc = 5v, v cc2 = 3.3v, t a = +25c, unless otherwise noted.) typical operating characteristics undervoltage threshold vs. temperature max6754 toc02 temperature (c) normalized undervoltage threshold (v) 110 95 80 65 50 35 20 5 -10 -25 0.98 0.99 1.00 1.01 1.02 1.030.97 -40 125 undervoltage threshold rising undervoltage threshold falling normalized to fallingthreshold at t a = +25c transient immunity vs. threshold overdrive max6754 toc03 overdrive (mv) transient immunity (s) 100 10 100 1000 1 1000 10 output assertsabove this line d3 timeout period vs. temperature max6754 toc04 timeout period (ms) 182 184 186 188 190 192 194180 temperature (c) 110 95 80 65 50 35 205 -10 -25 -40 125 supply current vs. supply voltage max6754 toc05 v cc (v) i cc (a) 5 4 3 2 8 10 12 14 16 18 20 6 1 6 t a = +125c t a = +85c t a = +25c t a = -40c output-voltage low vs. sink current max6754 toc06 i sink (ma) v ol (v) 15 10 5 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 0 20 v cc = 5.0v v cc = 3.3v v cc = 2.5v v cc = 1.8v overvoltage threshold vs. temperature max6754 toc01 temperature (c) normalized overvoltage threshold (v) 110 95 80 65 50 35 20 5 -10 -25 0.98 0.99 1.00 1.01 1.02 1.030.97 -40 125 overvoltage threshold rising overvoltage threshold falling normalized to risingthreshold at t a = +25c output-voltage high vs. source current max6754 toc07 i source (ma) v oh - v cc (v) 15 10 5 -1.6 -1.4 -1.2 -1.0 -0.8 -0.6 -0.4 -0.2 0 -1.8 0 20 v cc = 5.0v v cc = 3.3v v cc = 2.5v v cc = 1.8v max6754Cmax6764 low-power, single/dual-voltage window detectors maxim integrated 8 www.maximintegrated.com downloaded from: http:///
pin description pin name function max6754/max6755/ max6756 max6757/max6758/ max6759 max6760/max6761/ max6762 max6763/ max6764 1 1 1 C v cc power voltage input. v cc powers the device. v cc is the monitored voltage. 1 power input. v cc powers the device. 2 2 2 2 gnd ground 3 3 8 mr active-low manual reset input. drive mr low to assert undervoltage and reset outputs. the asserted output remains asserted for the speciied propagation delay period after mr goes high. mr is internally pulled up to v cc through a 26k? resistor. 4 reset/ reset reset output. the reset output asserts when v cc is below the selected uv th threshold or above the selected ov th threshold. reset output deasserts after the speciied timeout period after v cc rises above the uv th threshold or drops below the ov th threshold. max6754: active-low push-pull output ( reset ). max6755: active-high push-pull output ( reset ). max6756: active-low open-drain output ( reset ). 5 6 4 set threshold window select input. set conigures the undervoltage and overvoltage window range for the internal detectors. connect set to gnd for 5% window, or to v cc for 10% window. bias set to v cc /2 for a 15% window. 4 6 uv/ uv undervoltage output. uv/ uv asserts when the monitored supply/ supplies are below the uv th thresholds or mr is low. uv/ uv deasserts after the speciied timeout period when the monitored supply/supplies rise above the uv th thresholds or for the speciied propagation delay after mr goes high. max6757/max6760: active-low push-pull output ( uv ). max6758/max6761: active-high push-pull output ( uv ). max6759/max6762: active-low open-drain output ( uv ). 3 v cc2 v cc2 voltage input. input for the second window voltage monitor, and device output power supply when v cc2 > v cc . 5 5 5 ov active-low overvoltage output. ov asserts low when the monitored supply/supplies are above their overvoltage threshold (ov th ). ov goes high impedance immediately when the monitored supply/supplies drop below ov th . there is no timeout delay period for the ov output. for max6763/max6764, ov is low when ovin is above the internal 0.5v threshold. ov is high when ovin is below the internal 0.5v threshold. max6757Cmax6762: active-low open-drain output. max6763: active-low push-pull output. max6764: active-low open-drain output. max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 9 downloaded from: http:///
figure 1. max6754/max6755/max6756 functional diagram pin name function max6754/max6755/ max6756 max6757/max6758/ max6759 max6760/max6761/ max6762 max6763/ max6764 7 ovlatch overvoltage output latch control input. drive ovlatch high to latch the overvoltage output for any v cc or v cc2 overvoltage condition. drive ovlatch low to clear the latch after overvoltage conditions have been removed. the latch is transparent when ovlatch is connected to gnd. ovlatch is a high-impedance input. use external pullup or pulldown. 3 uvin undervoltage input. uv is low when uvin is below the internal 0.5v threshold. uv is high when uvin is above the internal 0.5v threshold. 4 uv undervoltage output. uv is low when uvin is below the internal 0.5v threshold. uv is high when uvin is above the internal 0.5v threshold. there is no timeout delay period for the uv output. 6 ovin overvoltage input. ov is low when ovin is above the internal 0.5v threshold. ov is high when ovin is below the internal 0.5v threshold. ep exposed pad (tdfn only). ep is internally connected to gnd. leave ep unconnected or connect to gnd. pin description (continued)functional diagrams timeout periodoption adjust monitor voltage uv threshold -5%, -10%, -15% ov threshold +5%, +10%, +15% internal reference gnd (reset)/reset mr v cc ov monitor uv monitor max6754/max6755/max6756 ov th uv th set ( ) max6755 only. max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 10 downloaded from: http:///
figure 2. max6757/max6758/max6759 functional diagram functional diagrams (continued) timeout periodoption adjust monitor voltage uv threshold -5%, -10%, -15% ov threshold +5%, +10%, +15% internal reference gnd (uv)/uv mr v cc ov monitor uv monitor max6757/max6758/max6759 ov th uv th set ( ) max6758 only. ov v cc max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 11 downloaded from: http:///
figure 3. max6760/max6761/max6762 functional diagram functional diagrams (continued) ov monitor uv monitor ov th uv th ov monitor uv monitor ov th uv th uv threshold -5%, -10%, -15% ov threshold +5%, +10%, +15% internal reference adjust monitor voltage adjust monitor voltage timeout periodoption ov circuit mr v cc v cc2 set gnd (uv)/uv ovovlatch max6760/ max6761/max6762 ( ) max6761 only. max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 12 downloaded from: http:///
detailed description the max6754Cmax6764 are low-power window voltage detectors capable of monitoring undervoltage and overvoltage conditions on system power supplies. whenever a monitored voltage falls below its undervoltage threshold or exceeds its overvoltage threshold, these devices assert their outputs to notify the system (see functional diagrams ). the max6754/max6755/max6756 are single-voltage window detectors with internally fixed nominal voltage, externally adjustable set window, single reset undervoltage/ overvoltage output, and a manual reset input. the max6757/max6758/max6759 are single-voltage window detectors with internally set nominal voltage, externally adjustable set window, separate undervoltage/ overvoltage outputs, and manual reset input. the max6760/max6761/max6762 are dual-voltage window detectors with internally/externally set nominal voltages, externally adjustable set window, separate undervoltage/overvoltage outputs, manual reset input, and overvoltage latch functions. the max6763/max6764 are single adjustable window detectors with separate under/overvoltage outputs. the max6754Cmax6762 offer factory-fixed voltage thresholds for monitoring system voltages from 0.9v to 5v. the max6754Cmax6762 include a set function to select the window voltage to 5%, 10%, or 15%. the max6763/max6764 allow for externally adjustable upper and lower voltage thresholds to be set externally (down to 0.5v). the max6754Cmax6762 are available with two timing options (20s propagation delay or 100ms minimum reset timeout). supply voltages v cc is the power-supply input and the monitored voltage of the max6754Cmax6762. these devices feature a factory-trimmed v cc and v cc2 divider that sets the nominal input range (see table 1 and table 2 ). v cc for the max6763/max6764 is the power supply of the device and not the monitored voltage. for noisy systems, bypass v cc and v cc2 each with a 0.1f capacitor to gnd. setting the adjustable nominal voltage threshold the max6760/max6761/max6762 (versions with suffixes la, ta, ra, za, wa, and aa) offer adjustable nominal voltage threshold to monitor v cc2 . use an external voltage-divider to set the voltage at v cc2 to 0.4255v. configure set to select a monitor window of 5%, 10%, or 15% (see figure 5 ). the max6760/ max6761/max6762 suffix aa monitor only v cc2 and do not monitor v cc . figure 4. max6763/max6764 functional diagram figure 5. setting the threshold voltage of v cc2 functional diagrams (continued) internal reference 0.5v gnd ov monitor uv monitor ov th uv th uvov uvin v cc ovin max6763/max6764 ov(uv) uv 0.4255v +5% +10%+15% v cc2 0.4255v -5% -10%-15% max6760/max6761/max6762 (suffixes la, ta, ra, za, wa, aa) v+ r1r2 ( ) max6761 only. max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 13 downloaded from: http:///
choose r2 to have a resistance of up to 500k. calculate r1 by: r1 = ((v+ - 0.4255v) x r2) / 0.4255v the max6763/max6764 provide inputs to a window detector allowing the programming of the threshold voltage to within v cc (see figure 6 ). choose r1, r2, and r3 such that: (v+ / (r1 + r2 + r3)) 1a set the max6754Cmax6762 allow the setting of the window voltage range of the voltage detector. connect set to gnd to set a 5% window. connect set to v cc for a 10% window. bias set to v cc / 2 for a 15% window. manual reset ( mr ) the max6754Cmax6762 include an active-low manual reset input. drive mr low to assert a reset output (max6754/max6755/max6756) or an undervoltage output (max6757/max6758/max6759). the output remains asserted for the specified propagation delay time (see figure 7a and figure 7b ) after mr goes high. mr is inter - nally pulled to v cc with a 26k resistor. overvoltage latch control input (ovlatch) the max6760/max6761/max6762 provide an overvoltage latch control input (ovlatch). drive ovlatch high to latch the overvoltage output for any v cc or v cc2 overvoltage condition. drive ovlatch low to clear the latch after overvoltage conditions have been removed. the latch is transparent when ovlatch is connected to gnd. ovlatch is a high impedance input. use external pullup or pulldown. reset, undervoltage, and overvoltage outputs (reset, reset , uv , uv, ov) reset, reset , uv , uv, and ov outputs assert when the monitored supply is below the selected uv th threshold or above the selected ov th threshold. the reset output deasserts after the specified timeout period when the monitored supply rises above the uv th threshold or drops below the ov th threshold. the push-pull versions are referenced to v cc . the max6760/max6761/max6762 monitor both v cc and v cc2 . an undervoltage/overvoltage condition on either voltage supply asserts the corresponding output. reset and uv are guaranteed to be in the correct logic state when v cc or v cc2 > 1v. figure 6. setting the under/overvoltage window figure 7a. manual reset/ reset timing diagram figure 7b. v cc /reset, uv timing diagram internal reference 0.5v gnd ov monitor uv monitor ov th uv th uvov uvin v cc ovin max6763/max6764 v+ r1r2 r3 overvoltage asserts when undervoltage asserts when v+ x r3 r1 + r2 + r3 > 0.5v < 0.5v v+ x (r2 + r3) r1 + r2 + r3 mr reset, uv t d-mr t mr_p t d-uv t rp v cc reset, uv (reset is the complement of reset ) max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 14 downloaded from: http:///
applications information microprocessor monitoring figure 8 shows a microprocessor monitoring circuit. an overvoltage condition on either the core or i/o supply turns the scr on, blowing the fuse to disconnect the circuit from the power source. an optional capacitor (c1) on the gate of the scr provides additional transient immunity against nuisance trips. figure 8. microprocessor monitoring selector guide max6760 gndset v cc2 v cc uv ov mr ovlatch push button resetnmi i/o dc-dc converter core dc-dc converter mp i/o core fuse unregulated power source scr 100k ? 100k ? 100k ? *c11mf *optional. push-pull reset push-pull reset open-drain reset push-pull uv push-pull uv open-drain uv push-pull ov open-drain ov max6754 x max6755 x max6756 x max6757 x x max6758 x x max6759 x x max6760 x x max6761 x x max6762 x x max6763 x x max6764 x x max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 15 downloaded from: http:///
table 1. window threshold voltage suffix guide single fixed v cc (max6754max6759) table 2. window threshold voltage suffix guide dual fixed/adjustable (max6760/max6761/max6762) table 3. timeout period suffix guide *see the setting the adjustable nominal voltage threshold section. insert the threshold level suffixes for v cc and v cc2 (tables 1 and 2) after uk, ut, or ta. for the max6754Cmax6759, insert only the v cc threshold suffix after the uk or ut. insert the reset timeout delay (table 3) after d to complete the part number. for example, the max6760taltd3-t provides a v cc threshold of 5v, a v cc2 threshold of 3.3v, and a 100ms minimum reset timeout period. sample stock is generally held on standard versions only (see the standard versions table). standard versions have an order increment requirement of 2500 pieces. nonstandard versions have an order increment requirement of 10,000 pieces. contact factory for availability. devices are available in both leaded and lead-free packaging. specify lead-free by replacing -t with +t when ordering. /v denotes an automotive qualified part. ordering information (continued) part no. suffix v cc nominal system voltage (v) v cc2 nominal system voltage (v) lt 5 3.3 lr 5 3.0 la 5 adj* tz 3.3 2.5 tw 3.3 1.8 ti 3.3 1.5 tg 3.3 1.2 te 3.3 0.9 ta 3.3 adj* rz 3.0 2.5 rw 3.0 1.8 ri 3.0 1.5 rg 3.0 1.2 re 3.0 0.9 ra 3.0 adj* zw 2.5 1.8 zi 2.5 1.5 zg 2.5 1.2 ze 2.5 0.9 za 2.5 adj* wi 1.8 1.5 wg 1.8 1.2 we 1.8 0.9 wa 1.8 adj* aa adj* timeout period suffix active timeout period min (ms) typ (ms) max (ms) d0 0.02 d3 100 185 320 part temp range pin-package max6759 ut_d_/v-t -40c to +125c 6 sot23-6 max6760 ta_ _d_-t -40c to +125c 8 tdfn-ep max6761 ta_ _d_-t -40c to +125c 8 tdfn-ep max6762 ta_ _d_-t -40c to +125c 8 tdfn-ep max6763 ut-t -40c to +125c 6 sot23-6 max6764 ut-t -40c to +125c 6 sot23-6 part no. suffix v cc nominal system voltage (v) l 5.0 t 3.3 r 3.0 z 2.5 w 1.8 max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 16 downloaded from: http:///
part max6754 ukld0 max6754ukld3max6754uktd0 max6754uktd3 max6754ukzd0 max6754ukzd3 max6754ukwd0 max6754ukwd3 max6755 ukld0 max6755ukld3max6755uktd0 max6755uktd3 max6755ukzd0 max6755ukzd3 max6755ukwd0 max6755ukwd3 max6756 ukld0 max6756ukld3max6756uktd0 max6756uktd3 max6756ukzd0 max6756ukzd3 max6756ukwd0 max6756ukwd3 max6757 uttd0 max6757uttd3max6757utld0 max6757utld3 max6757utzd0 max6757utzd3 max6757utwd0 max6757utwd3 max6758 utld0 max6758utld3max6758uttd0 max6758uttd3 max6758utzd0 max6758utzd3 max6758utwd0 max6758utwd3 max6759 utld0 max6759utld3max6759uttd0 max6759uttd3 max6759utzd0 max6759utzd3 max6759utwd0 max6759utwd3 max6760 taltd3 max6760talad3 max6760tatzd3 part max6760tatwd3 max6760tatad3 max6760tarad3 max6760tazwd3 max6760tazad3 max6760tawed3 max6760tawad3 max6761 taltd3 max6761talad3 max6761tatzd3 max6761tatwd3 max6761tatad3 max6761tarad3 max6761tazwd3 max6761tazad3 max6761tawed3 max6761tawad3 max6762 taltd3 max6762talad3 max6762tatzd3 max6762tatwd3 max6762tatad3 max6762tarad3 max6762tazwd3 max6762tazad3 max6762tawed3 max6762tawad3 max6763 ut max6764 ut standard versions table max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 17 downloaded from: http:///
pin conigurationschip 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 suffix character, but the drawing pertains to the package regardless of rohs status. package type package code outline no. land pattern no. 5 sot23 u5+1 21-0057 90-0174 6 sot23 u6-1 21-0058 90-0175 8 tdfn t833-2 21-0137 90-0059 gnd reset (reset) mr 1 5 set v cc max6754max6755 max6756 sot23 ( ) max6755 only. top view 2 3 4 gnd uv (uv) 1 6 set 5 ov v cc max6757max6758 max6759 sot23 ( ) max6758 only. 2 3 4 mr 12 34 8 7 6 5 mr ovlatch uv (uv) ov set v cc2 gnd v cc max6760max6761 max6762 tdfn ( ) max6761 only. gnd uv 1 6 ovin 5 ov v cc max6763max6764 sot23 2 3 4 uvin max6754Cmax6764 low-power, single/dual-voltage window detectors www.maximintegrated.com maxim integrated 18 downloaded from: http:///
revision history revision number revision date description pages changed 4 1/11 added /v to the max6759 ordering information and added soldering temperature in the absolute maximum rating section 2, 16 5 10/15 adding /v part number of max6756 to data sheet 1, 16C18 6 11/15 updated package code for 5 sot23 in ordering information section 19 7 3/16 re-added standard versions table 17C18 8 6/16 removed top mark information from standard versions table 17C18 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. max6754Cmax6764 low-power, single/dual-voltage window detectors ? 2016 maxim integrated products, inc. 19 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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