General Description
The MAX6754–MAX6764 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 MAX6754–MAX6759/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 MAX6757–MAX6764 provide independent
undervoltage and overvoltage outputs. The outputs are
available in push-pull or open-drain configurations.
The MAX6754–MAX6762 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 MAX6754–MAX6762 are available in
two delay-timing options (20μs, typ or 100ms, min). The
MAX6760/MAX6761/MAX6762 also include a latched
overvoltage output function and the MAX6754–MAX6762
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 -40°C to +125°C.
Applications
●Telecommunications
●Networking
●Computers/Servers
●Data Storage
●Power Metering
●DC-DC Converter
●Modules
●Automotive
Benets 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
● 20μs (typ) or 100ms (min) Timeout Period Options
(MAX6754–MAX6762)
● Manual Reset Input (MAX6754–MAX6762)
●Latched Overvoltage Output Function
(MAX6760/MAX6761/MAX6762)
●Immune to Short Voltage Transients
● Low 10μA Supply Current
●Low-Voltage Operation (Outputs Valid for VCC
Down to 1V)
●-40°C to +125°C 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 VCC and VCC2 (Tables 1
and 2) after UK, UT, or TA. For the MAX6754–MAX6759,
insert only the VCC 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
VCC threshold of 5V, a VCC2 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
MAX6754UK_D_-T -40°C to +125°C 5 SOT23-5
MAX6755UK_D_-T -40°C to +125°C 5 SOT23-5
MAX6756UK_D_-T -40°C to +125°C 5 SOT23-5
MAX6756UK_D_/V+T* -40°C to +125°C 5 SOT23-5
MAX6757UT_D_-T -40°C to +125°C 6 SOT23-6
MAX6758UT_D_-T -40°C to +125°C 6 SOT23-6
Typical Application Circuit
Ordering Information
MAX6757
NMI
RESETMR
GND
VCC
UV
OV
SET
VCC
µP
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
Detectors
(Voltages with respect to GND.)
VCC, VCC2, ................................................................ -0.3V to +6.5V
SET, OVLATCH, MR, UVIN, OVIN ................. -0.3V to (VCC + 0.3V)
UV, RESET, OV (open drain) .................................... -0.3V to +6.5V
RESET, OV, UV, UV, RESET (push-pull) ......-0.3V to (VCC + 0.3V)
Input/Output Current (all pins) ..................................................20mA
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23-5 (derate 7.1mW/°C above TA = +70°C) ... 571mW
6-Pin SOT23-6 (derate 8.7mW/°C above TA = +70°C) ... 696mW
8-Pin TDFN (derate 24.4mW/°C above TA = +70°C) .... 1951mW
Operating Temperature Range ............................... -40°C to +125°C
Junction Temperature ............................................................+150°C
Storage Temperature Range .................................. -65°C to +150°C
Lead Temperature (soldering, 10s) .......................................+300°C
Soldering Temperature (reflow)
Lead(Pb)-Free Package ....................................................+260°C
Containing Lead(Pb) .......................................................... +240°C
(VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
Absolute Maximum Ratings
Electrical 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 VCC
(Note 2) 1.0 6.0
V
MAX6760TAAA/MAX6761TAAA/
MAX6762TAAA/MAX6763/MAX6764UT-T 1.4 6.0
VCC Supply Current ICC
VCC = 3.6V, MAX6754–MAX6759, no load 13 30
µA
VCC = 3.6V, MAX6763/MAX6764, no load 10 23
VCC = 3.6V, VCC ≥ VCC2,
MAX6760/MAX6761/MAX6762, no load 13 30
VCC2 Supply Current
ICC2
VCC2 = 1.8V, VCC ≥ VCC2,
MAX6760/MAX6761/MAX6762 1 1.5 µA
Adjustable Bias Current VCC2 (MAX6760–MAX6762TA_AD_)
(Note 3) -20 +20 nA
VCC THRESHOLD
VCC Overvoltage Threshold OVTH
TA = -40°C to
+125°C, rising
VCC
L, 5V
VSET = VSB 5.750 5.875 6.000
V
SET = VCC 5.500 5.625 5.750
SET = GND 5.250 5.375 5.500
T, 3.3V
VSET = VSB 3.795 3.878 3.960
SET = VCC 3.630 3.713 3.795
SET = GND 3.465 3.548 3.630
R, 3.0V
VSET = VSB 3.450 3.525 3.600
SET = VCC 3.300 3.375 3.450
SET = GND 3.150 3.225 3.300
Z, 2.5V
VSET = VSB 2.875 2.938 3.000
SET = VCC 2.750 2.813 2.875
SET = GND 2.625 2.688 2.750
W, 1.8V
VSET = VSB 2.070 2.115 2.160
SET = VCC 1.980 2.025 2.070
SET = GND 1.890 1.935 1.980
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
Detectors
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(VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
Electrical Characteristics (continued)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
VCC Undervoltage Threshold UVTH
TA = -40°C
to +125°C,
falling VCC
L, 5V
VSET = VSB 4.000 4.125 4.250
V
SET = VCC 4.250 4.375 4.500
SET = GND 4.500 4.625 4.750
T, 3.3V
VSET = VSB 2.640 2.723 2.805
SET = VCC 2.805 2.888 2.970
SET = GND 2.970 3.053 3.135
R, 3.0V
VSET = VSB 2.400 2.475 2.550
SET = VCC 2.550 2.625 2.700
SET = GND 2.700 2.775 2.850
Z, 2.5V
VSET = VSB 2.000 2.063 2.125
SET = VCC 2.125 2.188 2.250
SET = GND 2.250 2.313 2.375
W, 1.8V
VSET = VSB 1.440 1.485 1.530
SET = VCC 1.530 1.575 1.620
SET = GND 1.620 1.665 1.710
VCC2 Overvoltage Threshold OVTH2
TA = -40°C
to +125°C,
rising VCC2
T, 3.3V
VSET = VSB 3.795 3.878 3.960
V
SET = VCC 3.630 3.713 3.795
SET = GND 3.465 3.548 3.630
R, 3.0V
VSET = VSB 3.450 3.525 3.600
SET = VCC 3.300 3.375 3.450
SET = GND 3.150 3.225 3.300
Z, 2.5V
VSET = VSB 2.875 2.938 3.000
SET = VCC 2.750 2.813 2.875
SET = GND 2.625 2.688 2.750
W, 1.8V
VSET = VSB 2.070 2.115 2.160
SET = VCC 1.980 2.025 2.070
SET = GND 1.890 1.935 1.980
I, 1.5V
VSET = VSB (Note 2) 1.725 1.763 1.800
SET = VCC (Note 2) 1.650 1.688 1.725
SET = GND (Note 2) 1.575 1.613 1.650
G, 1.2V
VSET = VSB (Note 2) 1.380 1.410 1.440
SET = VCC (Note 2) 1.320 1.350 1.380
SET = GND (Note 2) 1.260 1.290 1.320
E, 0.9V
VSET = VSB (Note 2) 1.035 1.058 1.080
SET = VCC (Note 2) 0.990 1.013 1.035
SET = GND (Note 2) 0.945 0.968 0.990
ADJ
VSET = VSB 0.489 0.500 0.511
SET = VCC 0.468 0.479 0.489
SET = GND 0.447 0.457 0.468
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
Detectors
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(VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
Electrical Characteristics (continued)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
VCC2 Undervoltage Threshold UVTH2
TA = -40°C
to +125°C,
falling
VCC2
T, 3.3V
VSET = VSB 2.640 2.723 2.805
V
SET = VCC 2.805 2.888 2.970
SET = GND 2.970 3.053 3.135
R, 3.0V
VSET = VSB 2.400 2.475 2.550
SET = VCC 2.550 2.625 2.700
SET = GND 2.700 2.775 2.850
Z, 2.5V
VSET = VSB 2.000 2.063 2.125
SET = VCC 2.125 2.188 2.250
SET = GND 2.250 2.313 2.375
W, 1.8V
VSET = VSB 1.440 1.485 1.530
SET = VCC 1.530 1.575 1.620
SET = GND 1.620 1.665 1.710
I, 1.5V
VSET = VSB (Note 2) 1.200 1.238 1.275
SET = VCC (Note 2) 1.275 1.313 1.350
SET = GND (Note 2) 1.350 1.388 1.425
G, 1.2V
VSET = VSB (Note 2) 0.960 0.990 1.020
SET = VCC (Note 2) 1.020 1.050 1.080
SET = GND (Note 2) 1.080 1.110 1.140
E, 0.9V
VSET = VSB (Note 2) 0.720 0.743 0.765
SET = VCC (Note 2) 0.765 0.788 0.810
SET = GND (Note 2) 0.810 0.833 0.855
ADJ
VSET = VSB 0.340 0.351 0.362
SET = VCC 0.362 0.372 0.383
SET = GND 0.383 0.394 0.404
Threshold Hysteresis VHYST VCC, VCC2 0.7 %
UNDERVOLTAGE/OVERVOLTAGE INPUTS (UVIN, OVIN) (MAX6763/MAX6764)
UVIN, OVIN Threshold Voltage VTH-IN 0.485 0.5 0.515 V
UVIN, OVIN Input Bias Current IIN (Note 3) -20 +20 nA
UVIN, OVIN Threshold
Hysteresis VHYST 0.7 %
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
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(VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
Electrical Characteristics (continued)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
TIMING CHARACTERISTICS
Reset and UV Timeout Period tRP Figure 7 D0 20 µs
D3 100 185 320 ms
VCC to Reset Delay tD-RESET
VCC/VCC2 falling at 10mV/µs from
UVTH + 100mV to UVTH - 100mV 20 µs
VCC to UV Delay tD-UV
VCC/VCC2 rising at 10mV/µs from
OVTH - 100mV to OVTH + 100mV 20 µs
VCC to OV Delay tD-OV
VCC/VCC2 rising at 10mV/µs from
OVTH - 100mV to OVTH + 100mV
(MAX6757–MAX6762 only)
20 µs
UVIN to UV Delay (MAX6763/MAX6764) 20 µs
OVIN to OV Delay (MAX6763/MAX6764) 20 µs
Startup Delay Time tSTART 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) VSB
VCC = 1.4V 0.65 0.75
VVCC = 3.0V 0.81 2.19
VCC = 6.0V 1.10 4.90
Input-Voltage High VCC - 0.1 VCC V
Input Current ISET -1 +1 µA
MANUAL RESET (MR)
Input-Voltage Low 0.23 x
VCC
V
Input-Voltage High 0.6 x
VCC
V
Pullup Resistance to VCC 26 kΩ
Minimum Pulse Width 4 µs
Transient Immunity 300 ns
Propagation Delay
tD-MR MR falling, Figure 7 300 ns
tMR_P MR rising, Figure 7 D0 40
D3 100 185 320 ms
OVERVOLTAGE OUTPUT LATCH CONTROL INPUT (OVLATCH)
Input-Voltage Low 0.3 x
VCC
V
Input-Voltage High 0.7 x
VCC
V
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
Detectors
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(VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
Electrical Characteristics (continued)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Bias Current IOVLATCH -1 +1 µA
RESET, RESET, UV, UV, OV
RESET, UV Output Low (Open
Drain or Push-Pull) VOL
Any VCC ≥ 1.0V, ISINK = 100µA,
output asserted 0.3
V
Any VCC ≥ 1.2V, ISINK = 200µA,
output asserted 0.3
Any VCC ≥ 1.71V, ISINK = 1.0mA,
output asserted 0.3
Any VCC ≥ 2.85V, ISINK = 2.0mA,
output asserted 0.3
Any VCC ≥ 4.75V, ISINK = 4.0mA,
output asserted 0.3
RESET, UV Output High
(Push-Pull) VOH
Any VCC ≥ 1.71V, ISOURCE = 0.8mA,
output deasserted
0.8 x
VCC
V
Any VCC ≥ 2.85V, ISOURCE = 2.0mA,
output deasserted
0.8 x
VCC
Any VCC ≥ 4.75V, ISOURCE = 4.0mA,
output deasserted
0.8 x
VCC
RESET, UV Output Low
(Push-Pull) VOL
Any VCC ≥ 1.71V, ISINK = 1.0mA,
output deasserted 0.3
V
Any VCC ≥ 2.85V, ISINK = 2.0mA,
output deasserted 0.3
Any VCC ≥ 4.75V, ISINK = 4.0mA,
output deasserted 0.3
RESET, UV Output High
(Push-Pull) VOH
Any VCC ≥ 1.0V, ISOURCE = 50µA,
output asserted
0.8 x
VCC
V
Any VCC ≥1.2V, ISOURCE = 100µA,
output asserted
0.8 x
VCC
Any VCC ≥ 1.71V, ISOURCE = 0.8mA,
output asserted
0.8 x
VCC
Any VCC ≥ 2.85V, ISOURCE = 2.0mA,
output asserted
0.8 x
VCC
Any VCC ≥ 4.75V, ISOURCE = 4.0mA,
output asserted
0.8 x
VCC
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
Detectors
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(VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
Note 1: Devices are production tested at +25°C. Overtemperature limits are guaranteed by design.
Note 2: Voltage monitoring requires that VCC must be greater than or equal to 1.4V, but outputs remain asserted in the correct state
for VCC 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 VCC. The minimum value is given by the equation (0.1 x VCC + 0.51)V and the maxi-
mum value is given by (0.9 x VCC - 0.51)V.
Electrical Characteristics (continued)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
OV Output Low
(Open-Drain or
Push-Pull)
VOL
Any VCC ≥ 1.98V, ISINK = 1.4mA,
output asserted 0.3
V
Any VCC ≥ 2.75V, ISINK = 2.0mA,
output asserted 0.3
Any VCC ≥ 3.63V, ISINK = 3.0mA,
output asserted 0.3
Any VCC ≥ 5.5V, ISINK = 4.0mA,
output asserted 0.3
OV Output High
(Push-Pull) VOH
Any VCC ≥ 1.0V, ISOURCE = 50µA,
output deasserted
0.8 x
VCC
V
Any VCC ≥ 1.2V, ISOURCE = 100µA,
output deasserted
0.8 x
VCC
Any VCC ≥ 1.98V, ISOURCE = 1.4mA,
output deasserted
0.8 x
VCC
Any VCC ≥ 2.75V, ISOURCE = 2.0mA,
output deasserted
0.8 x
VCC
Any VCC ≥ 3.63V, ISOURCE = 3.0mA,
output deasserted
0.8 x
VCC
Any VCC ≥ 5.5V, ISOURCE = 4.5mA,
output deasserted
0.8 x
VCC
RESET, UV, OV Output Open-
Drain Leakage Current ILKG Output not asserted 1 µA
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
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(VCC = 5V, VCC2 = 3.3V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
UNDERVOLTAGE THRESHOLD
vs. TEMPERATURE
MAX6754 toc02
TEMPERATURE (°C)
NORMALIZED UNDERVOLTAGE THRESHOLD (V)
1109580655035205-10-25
0.98
0.99
1.00
1.01
1.02
1.03
0.97
-40 125
UNDERVOLTAGE THRESHOLD RISING
UNDERVOLTAGE THRESHOLD FALLING
NORMALIZED TO FALLING
THRESHOLD AT TA = +25°C
TRANSIENT IMMUNITY
vs. THRESHOLD OVERDRIVE
MAX6754 toc03
OVERDRIVE (mV)
TRANSIENT IMMUNITY (µs)
10010
100
10001
1000
10
OUTPUT ASSERTS
ABOVE THIS LINE
D3 TIMEOUT PERIOD
vs. TEMPERATURE
MAX6754 toc04
TIMEOUT PERIOD (ms)
182
184
186
188
190
192
194
180
TEMPERATURE (°C)
1109580655035205-10-25-40 125
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX6754 toc05
VCC (V)
ICC (µA)
5432
8
10
12
14
16
18
20
6
1 6
TA = +125°C
TA = +85°C
TA = +25°C
TA = -40°C
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT
MAX6754 toc06
ISINK (mA)
VOL (V)
15105
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
0 20
VCC = 5.0V
VCC = 3.3V
VCC = 2.5V
VCC = 1.8V
OVERVOLTAGE THRESHOLD
vs. TEMPERATURE
MAX6754 toc01
TEMPERATURE (°C)
NORMALIZED OVERVOLTAGE THRESHOLD (V)
1109580655035205-10-25
0.98
0.99
1.00
1.01
1.02
1.03
0.97
-40 125
OVERVOLTAGE THRESHOLD RISING
OVERVOLTAGE THRESHOLD FALLING
NORMALIZED TO RISING
THRESHOLD AT TA = +25°C
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT
MAX6754 toc07
ISOURCE (mA)
VOH - VCC (V)
15105
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0
-1.8
0 20
VCC = 5.0V
VCC = 3.3V
VCC = 2.5V
VCC = 1.8V
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
Detectors
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Pin Description
PIN
NAME FUNCTION
MAX6754/
MAX6755/
MAX6756
MAX6757/
MAX6758/
MAX6759
MAX6760/
MAX6761/
MAX6762
MAX6763/
MAX6764
1 1 1 – VCC
Power Voltage Input. VCC powers the device. VCC is the monitored
voltage.
— — — 1 Power Input. VCC 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
specied propagation delay period after MR goes high. MR is
internally pulled up to VCC through a 26kΩ resistor.
4 — — — RESET/
RESET
Reset Output. The Reset Output asserts when VCC is below the
selected UVTH threshold or above the selected OVTH threshold.
Reset output deasserts after the specied timeout period after VCC
rises above the UVTH threshold or drops below the OVTH 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 congures the undervoltage
and overvoltage window range for the internal detectors. Connect
SET to GND for ±5% window, or to VCC for ±10% window. Bias SET
to VCC/2 for a ±15% window.
— 4 6 — UV/
UV
Undervoltage Output. UV/UV asserts when the monitored supply/
supplies are below the UVTH thresholds or MR is low. UV/UV
deasserts after the specied timeout period when the monitored
supply/supplies rise above the UVTH thresholds or for the specied
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 — VCC2
VCC2 Voltage Input. Input for the second window voltage monitor,
and device output power supply when VCC2 > VCC.
5 5 5 OV
Active-Low Overvoltage Output. OV asserts low when the monitored
supply/supplies are above their overvoltage threshold (OVTH). OV
goes high impedance immediately when the monitored supply/
supplies drop below OVTH.
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.
MAX6757–MAX6762: Active-low open-drain output.
MAX6763: Active-low push-pull output.
MAX6764: Active-low open-drain output.
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
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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 VCC or VCC2 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
PERIOD
OPTION
ADJUST
MONITOR
VOLTAGE
UV THRESHOLD
-5%, -10%, -15%
OV THRESHOLD
+5%, +10%, +15%
INTERNAL
REFERENCE
GND
(RESET)/
RESET
MR
VCC
OV MONITOR
UV MONITOR
MAX6754/MAX6755/MAX6756
OVTH
UVTH
SET
( ) MAX6755 ONLY.
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
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Figure 2. MAX6757/MAX6758/MAX6759 Functional Diagram
Functional Diagrams (continued)
TIMEOUT
PERIOD
OPTION
ADJUST
MONITOR
VOLTAGE
UV THRESHOLD
-5%, -10%, -15%
OV THRESHOLD
+5%, +10%, +15%
INTERNAL
REFERENCE
GND
(UV)/
UV
MR
VCC
OV MONITOR
UV MONITOR
MAX6757/MAX6758/MAX6759
OVTH
UVTH
SET
( ) MAX6758 ONLY.
OV
VCC
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Figure 3. MAX6760/MAX6761/MAX6762 Functional Diagram
Functional Diagrams (continued)
OV MONITOR
UV MONITOR
OVTH
UVTH
OV MONITOR
UV MONITOR
OVTH
UVTH
UV THRESHOLD
-5%, -10%, -15% OV THRESHOLD
+5%, +10%, +15%
INTERNAL
REFERENCE
ADJUST
MONITOR
VOLTAGE
ADJUST
MONITOR
VOLTAGE
TIMEOUT
PERIOD
OPTION
OV
CIRCUIT
MRVCC
VCC2
SET
GND
(UV)/
UV
OV
OVLATCH
MAX6760/
MAX6761/MAX6762
( ) MAX6761 ONLY.
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
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Detailed Description
The MAX6754–MAX6764 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 MAX6754–MAX6762 offer factory-fixed voltage
thresholds for monitoring system voltages from 0.9V to
5V. The MAX6754–MAX6762 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 MAX6754–MAX6762 are available with
two timing options (20μs propagation delay or 100ms
minimum reset timeout).
Supply Voltages
VCC is the power-supply input and the monitored voltage
of the MAX6754–MAX6762. These devices feature a
factory-trimmed VCC and VCC2 divider that sets the
nominal input range (see Table 1 and Table 2). VCC for
the MAX6763/MAX6764 is the power supply of the device
and not the monitored voltage. For noisy systems, bypass
VCC and VCC2 each with a 0.1μF 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 VCC2. Use an
external voltage-divider to set the voltage at VCC2 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 VCC2 and do
not monitor VCC.
Figure 4. MAX6763/MAX6764 Functional Diagram
Figure 5. Setting the Threshold Voltage of VCC2
Functional Diagrams (continued)
INTERNAL
REFERENCE
0.5V
GND
OV MONITOR
UV MONITOR
OVTH
UVTH
UV
OV
UVIN
VCC
OVIN
MAX6763/MAX6764
OV
(UV)
UV
0.4255V +5%
+10%
+15%
VCC2
0.4255V -5%
-10%
-15%
MAX6760/MAX6761/MAX6762
(SUFFIXES LA, TA, RA, ZA, WA, AA)
V+
R1
R2
( ) MAX6761 ONLY.
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
Detectors
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Choose R2 to have a resistance of up to 500kΩ.
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 VCC (see Figure 6).
Choose R1, R2, and R3 such that:
(V+ / (R1 + R2 + R3)) ≥ 1μA
SET
The MAX6754–MAX6762 allow the setting of the window
voltage range of the voltage detector. Connect SET to
GND to set a ±5% window. Connect SET to VCC for a
±10% window. Bias SET to VCC / 2 for a ±15% window.
Manual Reset (MR)
The MAX6754–MAX6762 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 VCC with a 26kΩ 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 VCC or VCC2
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 UVTH threshold
or above the selected OVTH threshold. The reset output
deasserts after the specified timeout period when the
monitored supply rises above the UVTH threshold or
drops below the OVTH threshold. The push-pull versions
are referenced to VCC.
The MAX6760/MAX6761/MAX6762 monitor both VCC
and VCC2. 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 VCC or VCC2 > 1V.
Figure 6. Setting the Under/Overvoltage Window
Figure 7a. Manual Reset/Reset Timing Diagram
Figure 7b. VCC/RESET, UV Timing Diagram
INTERNAL
REFERENCE
0.5V
GND
OV MONITOR
UV MONITOR
OVTH
UVTH
UV
OV
UVIN
VCC
OVIN
MAX6763/MAX6764
V+
R1
R2
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
tD-MR
tMR_P
tD-UV
tRP
VCC
RESET, UV
(RESET IS THE COMPLEMENT OF RESET)
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
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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
GND
SET
VCC2
VCC
UV
OV
MR
OVLATCH
PUSH BUTTON
RESET
NMI
I/O
DC-DC
CONVERTER
CORE
DC-DC
CONVERTER
mP
I/O
CORE
FUSE
UNREGULATED
POWER SOURCE
SCR 100kΩ100kΩ
100kΩ
*C1
1mF *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
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
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Table 1. Window Threshold Voltage
Suffix Guide Single Fixed VCC
(MAX6754—MAX6759)
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 VCC and VCC2 (Tables 1
and 2) after UK, UT, or TA. For the MAX6754–MAX6759,
insert only the VCC 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
VCC threshold of 5V, a VCC2 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
VCC NOMINAL
SYSTEM VOLTAGE
(V)
VCC2 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
MAX6759UT_D_/V-T -40°C to +125°C 6 SOT23-6
MAX6760TA_ _D_-T -40°C to +125°C 8 TDFN-EP
MAX6761TA_ _D_-T -40°C to +125°C 8 TDFN-EP
MAX6762TA_ _D_-T -40°C to +125°C 8 TDFN-EP
MAX6763UT-T -40°C to +125°C 6 SOT23-6
MAX6764UT-T -40°C to +125°C 6 SOT23-6
PART NO. SUFFIX VCC NOMINAL SYSTEM VOLTAGE (V)
L 5.0
T 3.3
R 3.0
Z 2.5
W 1.8
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
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PART
MAX6754UKLD0
MAX6754UKLD3
MAX6754UKTD0
MAX6754UKTD3
MAX6754UKZD0
MAX6754UKZD3
MAX6754UKWD0
MAX6754UKWD3
MAX6755UKLD0
MAX6755UKLD3
MAX6755UKTD0
MAX6755UKTD3
MAX6755UKZD0
MAX6755UKZD3
MAX6755UKWD0
MAX6755UKWD3
MAX6756UKLD0
MAX6756UKLD3
MAX6756UKTD0
MAX6756UKTD3
MAX6756UKZD0
MAX6756UKZD3
MAX6756UKWD0
MAX6756UKWD3
MAX6757UTTD0
MAX6757UTTD3
MAX6757UTLD0
MAX6757UTLD3
MAX6757UTZD0
MAX6757UTZD3
MAX6757UTWD0
MAX6757UTWD3
MAX6758UTLD0
MAX6758UTLD3
MAX6758UTTD0
MAX6758UTTD3
MAX6758UTZD0
MAX6758UTZD3
MAX6758UTWD0
MAX6758UTWD3
MAX6759UTLD0
MAX6759UTLD3
MAX6759UTTD0
MAX6759UTTD3
MAX6759UTZD0
MAX6759UTZD3
MAX6759UTWD0
MAX6759UTWD3
MAX6760TALTD3
MAX6760TALAD3
MAX6760TATZD3
PART
MAX6760TATWD3
MAX6760TATAD3
MAX6760TARAD3
MAX6760TAZWD3
MAX6760TAZAD3
MAX6760TAWED3
MAX6760TAWAD3
MAX6761TALTD3
MAX6761TALAD3
MAX6761TATZD3
MAX6761TATWD3
MAX6761TATAD3
MAX6761TARAD3
MAX6761TAZWD3
MAX6761TAZAD3
MAX6761TAWED3
MAX6761TAWAD3
MAX6762TALTD3
MAX6762TALAD3
MAX6762TATZD3
MAX6762TATWD3
MAX6762TATAD3
MAX6762TARAD3
MAX6762TAZWD3
MAX6762TAZAD3
MAX6762TAWED3
MAX6762TAWAD3
MAX6763UT
MAX6764UT
Standard Versions Table
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
Detectors
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Pin Congurations
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 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 SETVCC
MAX6754
MAX6755
MAX6756
SOT23
( ) MAX6755 ONLY.
TOP VIEW
2
3 4
GND
UV (UV)
1 6 SET
5OV
VCC
MAX6757
MAX6758
MAX6759
SOT23
( ) MAX6758 ONLY.
2
3 4
MR
1
2
3
4
8
7
6
5
MR
OVLATCH
UV (UV)
OV
SET
VCC2
GND
VCC
MAX6760
MAX6761
MAX6762
TDFN
( ) MAX6761 ONLY.
GND
UV
1 6 OVIN
5OV
VCC
MAX6763
MAX6764
SOT23
2
3 4
UVIN
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
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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, 16–18
6 11/15 Updated package code for 5 SOT23 in Ordering Information section 19
7 3/16 Re-added Standard Versions table 17–18
8 6/16 Removed top mark information from Standard Versions table 17–18
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 specications 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 guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window
Detectors
© 2016 Maxim Integrated Products, Inc.
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MAX6754UKLD0+T MAX6754UKLD3+T MAX6754UKRD0+T MAX6754UKRD3+T MAX6754UKTD0+T
MAX6754UKTD3+T MAX6754UKWD0+T MAX6754UKWD3+T MAX6754UKZD0+T MAX6754UKZD3+T
MAX6755UKLD0+T MAX6755UKLD3+T MAX6755UKRD0+T MAX6755UKRD3+T MAX6755UKTD0+T
MAX6755UKTD3+T MAX6755UKWD0+T MAX6755UKWD3+T MAX6755UKZD0+T MAX6755UKZD3+T
MAX6756UKLD0+T MAX6756UKLD3+T MAX6756UKRD0+T MAX6756UKRD3+T MAX6756UKTD0+T
MAX6756UKTD3+T MAX6756UKWD0+T MAX6756UKWD3+T MAX6756UKZD0+T MAX6756UKZD3+T
MAX6757UTLD0+T MAX6757UTLD3+T MAX6757UTRD0+T MAX6757UTRD3+T MAX6757UTTD0+T
MAX6757UTTD3+T MAX6757UTWD0+T MAX6757UTWD3+T MAX6757UTZD0+T MAX6757UTZD3+T
MAX6758UTLD0+T MAX6758UTLD3+T MAX6758UTRD0+T MAX6758UTRD3+T MAX6758UTTD0+T
MAX6758UTTD3+T MAX6758UTWD0+T MAX6758UTWD3+T MAX6758UTZD0+T MAX6758UTZD3+T
MAX6759UTLD0+T MAX6759UTLD3+T MAX6759UTRD0+T MAX6759UTRD3+T MAX6759UTTD0+T
MAX6759UTTD3+T MAX6759UTWD0+T MAX6759UTWD3+T MAX6759UTZD0+T MAX6759UTZD3+T
MAX6760TAAAD0+T MAX6760TAAAD3+T MAX6760TALAD0+T MAX6760TALAD3+T MAX6760TALRD0+T
MAX6760TALRD3+T MAX6760TALTD0+T MAX6760TALTD3+T MAX6760TARAD0+T MAX6760TARAD3+T
MAX6760TARED0+T MAX6760TARED3+T MAX6760TARGD0+T MAX6760TARGD3+T MAX6760TARID0+T
MAX6760TARID3+T MAX6760TARWD0+T MAX6760TARWD3+T MAX6760TARZD0+T MAX6760TARZD3+T
MAX6760TATAD0+T MAX6760TATAD3+T MAX6760TATED0+T MAX6760TATED3+T MAX6760TATGD0+T
MAX6760TATGD3+T MAX6760TATID0+T MAX6760TATID3+T MAX6760TATWD0+T MAX6760TATWD3+T
MAX6760TATZD0+T MAX6760TATZD3+T MAX6760TAWAD0+T MAX6760TAWAD3+T MAX6760TAWED0+T
MAX6760TAWED3+T MAX6760TAWGD0+T MAX6760TAWGD3+T MAX6760TAWID0+T MAX6760TAWID3+T