MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
General Description
The MAX6754–MAX6764 low-power window detectors 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
Benefits 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
●● AEC-Q100 Qualified (/V Parts Only, Refer to
Ordering Information)
Typical Application Circuit
●● Telecommunications
●● Networking
●● Computers/Servers
VCC
●● Data Storage
●● Power Metering
●● DC-DC Converter Modules
µP
MAX6757
VCC
SET
GND
OV
NMI
MR
UV
RESET
●● Automotive
Pin Configurations appear towards end of data sheet.
Ordering Information appears at end of data sheet.
19-3075; Rev 10; 11/17
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Absolute Maximum Ratings
(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
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
(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)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER REQUIREMENTS
Operating Voltage Range
VCC Supply Current
VCC2 Supply Current
Adjustable Bias Current
VCC
ICC
ICC2
(Note 2)
1.0
6.0
MAX6760TAAA/MAX6761TAAA/
MAX6762TAAA/MAX6763/MAX6764UT-T
1.4
6.0
VCC = 3.6V, MAX6754–MAX6759, no load
13
30
VCC = 3.6V, MAX6763/MAX6764, no load
10
23
VCC = 3.6V, VCC ≥ VCC2,
MAX6760/MAX6761/MAX6762, no load
13
30
VCC2 = 1.8V, VCC ≥ VCC2,
MAX6760/MAX6761/MAX6762
1
1.5
µA
+20
nA
VCC2 (MAX6760–MAX6762TA_AD_)
(Note 3)
VCC THRESHOLD
L, 5V
T, 3.3V
VCC Overvoltage Threshold
OVTH
TA = -40°C to
+125°C, rising R, 3.0V
VCC
Z, 2.5V
W, 1.8V
www.maximintegrated.com
V
-20
VSET = VSB
5.750
5.875
6.000
SET = VCC
5.500
5.625
5.750
SET = GND
5.250
5.375
5.500
VSET = VSB
3.795
3.878
3.960
SET = VCC
3.630
3.713
3.795
SET = GND
3.465
3.548
3.630
VSET = VSB
3.450
3.525
3.600
SET = VCC
3.300
3.375
3.450
SET = GND
3.150
3.225
3.300
VSET = VSB
2.875
2.938
3.000
SET = VCC
2.750
2.813
2.875
SET = GND
2.625
2.688
2.750
VSET = VSB
2.070
2.115
2.160
1.980
2.025
2.070
SET = GND
1.890
1.935
1.980
SET = VCC
µA
V
Maxim Integrated │ 2
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Electrical Characteristics (continued)
(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)
PARAMETER
SYMBOL
CONDITIONS
L, 5V
T, 3.3V
VCC Undervoltage Threshold
UVTH
TA = -40°C
to +125°C,
falling VCC
R, 3.0V
Z, 2.5V
MIN
TYP
MAX
VSET = VSB
4.000
4.125
4.250
SET = VCC
4.250
4.375
4.500
SET = GND
4.500
4.625
4.750
VSET = VSB
2.640
2.723
2.805
SET = VCC
2.805
2.888
2.970
SET = GND
2.970
3.053
3.135
VSET = VSB
2.400
2.475
2.550
SET = VCC
2.550
2.625
2.700
SET = GND
2.700
2.775
2.850
VSET = VSB
2.000
2.063
2.125
SET = VCC
2.125
2.188
2.250
SET = GND
2.250
2.313
2.375
VSET = VSB
1.440
1.485
1.530
1.530
1.575
1.620
SET = GND
1.620
1.665
1.710
VSET = VSB
3.795
3.878
3.960
SET = VCC
3.630
3.713
3.795
SET = GND
3.465
3.548
3.630
VSET = VSB
3.450
3.525
3.600
SET = VCC
3.300
3.375
3.450
SET = GND
3.150
3.225
3.300
VSET = VSB
W, 1.8V SET = VCC
T, 3.3V
R, 3.0V
Z, 2.5V
VCC2 Overvoltage Threshold
OVTH2
TA = -40°C
to +125°C,
rising VCC2
2.875
2.938
3.000
SET = VCC
2.750
2.813
2.875
SET = GND
2.625
2.688
2.750
VSET = VSB
2.070
2.115
2.160
1.980
2.025
2.070
SET = GND
1.890
1.935
1.980
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
VSET = VSB (Note 2)
1.380
1.410
1.440
1.320
1.350
1.380
SET = GND (Note 2)
1.260
1.290
1.320
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
VSET = VSB
0.489
0.500
0.511
0.468
0.479
0.489
SET = GND
0.447
0.457
0.468
W, 1.8V SET = VCC
I, 1.5V
G, 1.2V SET = VCC (Note 2)
E, 0.9V
ADJ
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SET = VCC
UNITS
V
V
Maxim Integrated │ 3
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Electrical Characteristics (continued)
(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)
PARAMETER
SYMBOL
CONDITIONS
T, 3.3V
R, 3.0V
Z, 2.5V
VCC2 Undervoltage Threshold
UVTH2
TA = -40°C
to +125°C,
falling
VCC2
MIN
TYP
MAX
VSET = VSB
2.640
2.723
2.805
SET = VCC
2.805
2.888
2.970
SET = GND
2.970
3.053
3.135
VSET = VSB
2.400
2.475
2.550
SET = VCC
2.550
2.625
2.700
SET = GND
2.700
2.775
2.850
VSET = VSB
2.000
2.063
2.125
SET = VCC
2.125
2.188
2.250
SET = GND
2.250
2.313
2.375
VSET = VSB
1.440
1.485
1.530
1.530
1.575
1.620
SET = GND
1.620
1.665
1.710
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
VSET = VSB (Note 2)
0.960
0.990
1.020
1.020
1.050
1.080
SET = GND (Note 2)
1.080
1.110
1.140
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
VSET = VSB
0.340
0.351
0.362
0.362
0.372
0.383
SET = GND
0.383
0.394
0.404
W, 1.8V SET = VCC
I, 1.5V
G, 1.2V SET = VCC (Note 2)
E, 0.9V
ADJ
Threshold Hysteresis
VHYST
SET = VCC
VCC, VCC2
0.7
UNITS
V
%
UNDERVOLTAGE/OVERVOLTAGE INPUTS (UVIN, OVIN) (MAX6763/MAX6764)
UVIN, OVIN Threshold Voltage
UVIN, OVIN Input Bias Current
UVIN, OVIN Threshold
Hysteresis
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VTH-IN
IIN
VHYST
0.485
(Note 3)
0.5
-20
0.7
0.515
V
+20
nA
%
Maxim Integrated │ 4
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Electrical Characteristics (continued)
(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)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
100
185
MAX
UNITS
320
ms
TIMING CHARACTERISTICS
Reset and UV Timeout Period
tRP
Figure 7
D0
D3
20
µs
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
2
ms
VCC to Reset Delay
Startup Delay Time
tSTART
D0 options only, OV output (Note 4)
THRESHOLD WINDOW SELECT INPUT (SET)
Input-Voltage Low
Input Bias Voltage
(Note 5)
VSB
Input-Voltage High
Input Current
VCC = 1.4V
VCC = 3.0V
VCC = 6.0V
0
0.1
0.65
0.75
0.81
2.19
1.10
4.90
VCC - 0.1
ISET
VCC
-1
V
V
V
+1
µA
0.23 x
VCC
V
MANUAL RESET (MR)
Input-Voltage Low
0.6 x
VCC
Input-Voltage High
Pullup Resistance to VCC
26
Minimum Pulse Width
kΩ
4
Transient Immunity
Propagation Delay
V
µs
300
tD-MR
MR falling, Figure 7
tMR_P
MR rising, Figure 7
ns
300
D0
D3
ns
40
100
185
320
ms
0.3 x
VCC
V
OVERVOLTAGE OUTPUT LATCH CONTROL INPUT (OVLATCH)
Input-Voltage Low
Input-Voltage High
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0.7 x
VCC
V
Maxim Integrated │ 5
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Electrical Characteristics (continued)
(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)
PARAMETER
Input Bias Current
RESET, RESET, UV, UV, OV
RESET, UV Output Low (Open
Drain or Push-Pull)
RESET, UV Output High
(Push-Pull)
RESET, UV Output Low
(Push-Pull)
RESET, UV Output High
(Push-Pull)
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SYMBOL
CONDITIONS
IOVLATCH
VOL
VOH
VOL
VOH
MIN
-1
TYP
MAX
UNITS
+1
µA
Any VCC ≥ 1.0V, ISINK = 100µA,
output asserted
0.3
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
Any VCC ≥ 1.71V, ISOURCE = 0.8mA,
output deasserted
0.8 x
VCC
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
V
Any VCC ≥ 1.71V, ISINK = 1.0mA,
output deasserted
0.3
Any VCC ≥ 2.85V, ISINK = 2.0mA,
output deasserted
0.3
Any VCC ≥ 4.75V, ISINK = 4.0mA,
output deasserted
0.3
Any VCC ≥ 1.0V, ISOURCE = 50µA,
output asserted
0.8 x
VCC
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
V
V
V
Maxim Integrated │ 6
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Electrical Characteristics (continued)
(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)
PARAMETER
OV Output Low
(Open-Drain or
Push-Pull)
OV Output High
(Push-Pull)
RESET, UV, OV Output OpenDrain Leakage Current
SYMBOL
VOL
VOH
ILKG
CONDITIONS
MIN
TYP
MAX
Any VCC ≥ 1.98V, ISINK = 1.4mA,
output asserted
0.3
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
V
Any VCC ≥ 1.0V, ISOURCE = 50µA,
output deasserted
0.8 x
VCC
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
Output not asserted
UNITS
V
1
µA
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
maximum value is given by (0.9 x VCC - 0.51)V.
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Maxim Integrated │ 7
Low-Power, Single/Dual-Voltage Window Detectors
MAX6754–MAX6764
Typical Operating Characteristics
1.01
OVERVOLTAGE THRESHOLD FALLING
0.98
0.97
NORMALIZED TO RISING
THRESHOLD AT TA = +25°C
-40 -25 -10 5 20 35 50 65 80 95 110 125
UNDERVOLTAGE THRESHOLD RISING
1.01
1.00
UNDERVOLTAGE THRESHOLD FALLING
0.99
0.98
0.97
MAX6754 toc04
188
14
ICC (µA)
16
186
10
182
8
6
-40 -25 -10 5 20 35 50 65 80 95 110 125
TA = +125°C
TA = +85°C
TA = +25°C
TA = -40°C
1
2
3
4
5
TEMPERATURE (°C)
VCC (V)
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT
VCC = 5.0V
VCC = 3.3V
VCC = 1.8V
1.0
0.8
0.6
-0.2
-0.4
-0.8
-1.0
-1.2
-1.4
0.2
-1.6
0
-1.8
10
ISINK (mA)
15
20
VCC = 5.0V
-0.6
0.4
5
1000
6
0
VCC = 2.5V
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100
12
184
0
10
SUPPLY CURRENT vs. SUPPLY VOLTAGE
18
VOH - VCC (V)
VOL (V)
20
190
1.2
1
OVERDRIVE (mV)
MAX6754 toc06
TIMEOUT PERIOD (ms)
192
1.4
10
TEMPERATURE (°C)
194
1.6
100
-40 -25 -10 5 20 35 50 65 80 95 110 125
D3 TIMEOUT PERIOD
vs. TEMPERATURE
1.8
OUTPUT ASSERTS
ABOVE THIS LINE
NORMALIZED TO FALLING
THRESHOLD AT TA = +25°C
TEMPERATURE (°C)
180
MAX6754 toc03
1.02
1000
MAX6754 toc05
0.99
1.03
MAX6754 toc07
1.00
OVERVOLTAGE THRESHOLD RISING
TRANSIENT IMMUNITY
vs. THRESHOLD OVERDRIVE
TRANSIENT IMMUNITY (µs)
1.02
UNDERVOLTAGE THRESHOLD
vs. TEMPERATURE
MAX6754 toc02
1.03
MAX6754 toc01
NORMALIZED OVERVOLTAGE THRESHOLD (V)
OVERVOLTAGE THRESHOLD
vs. TEMPERATURE
NORMALIZED UNDERVOLTAGE THRESHOLD (V)
(VCC = 5V, VCC2 = 3.3V, TA = +25°C, unless otherwise noted.)
VCC = 3.3V
VCC = 1.8V
VCC = 2.5V
0
5
10
15
20
ISOURCE (mA)
Maxim Integrated │ 8
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Pin Configurations
TOP VIEW
VCC
1
5
SET
MAX6754
MAX6755
MAX6756
GND 2
MR 3
VCC 1
8 MR
GND 2
7 OVLATCH
VCC2 3
MAX6760
MAX6761
MAX6762
SET 4
4
RESET (RESET)
6 UV (UV)
5 OV
TDFN
( ) MAX6761 ONLY.
SOT23
( ) MAX6755 ONLY.
VCC 1
MAX6757
MAX6758
MAX6759
GND 2
MR
3
6
SET
VCC 1
5
OV
GND 2
4
UV (UV)
UVIN 3
SOT23
6 OVIN
MAX6763
MAX6764
5 OV
4
UV
SOT23
( ) MAX6758 ONLY.
Pin Description
PIN
MAX6754/
MAX6755/
MAX6756
MAX6757/ MAX6760/
MAX6763/
MAX6758/ MAX6761/
MAX6764
MAX6759 MAX6762
1
1
1
–
—
—
—
1
2
2
2
2
3
4
3
—
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8
—
—
—
NAME
VCC
GND
FUNCTION
Power Voltage Input. VCC powers the device. VCC is the monitored
voltage. Connect VCC of the MAX6756 to an RC filter to ensure
proper operation during extreme transition events. A 100Ω resistor
in series with a 0.1µF bypass capacitor is sufficient for most
applications. See Figure 9 for more details.
Power Input. VCC powers the device.
Ground
MR
Active-Low Manual Reset Input. Drive MR low to assert undervoltage
and reset outputs. The asserted output remains asserted for the
specified propagation delay period after MR goes high. MR is
internally pulled up to VCC through a 26kΩ resistor.
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 specified 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).
Maxim Integrated │ 9
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Pin Description (continued)
PIN
MAX6754/
MAX6755/
MAX6756
5
MAX6757/ MAX6760/
MAX6763/
MAX6758/ MAX6761/
MAX6764
MAX6759 MAX6762
6
4
—
NAME
SET
Threshold Window Select Input. SET configures 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.
Undervoltage Output. UV/UV asserts when the monitored supply/
supplies are below the UVTH thresholds or MR is low. UV/UV
deasserts after the specified timeout period when the monitored
supply/supplies rise above the UVTH thresholds or for the specified
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).
—
4
6
—
UV/
UV
—
—
3
—
VCC2
5
5
5
7
—
OV
VCC2 Voltage Input. Input for the second window voltage monitor,
and device output power supply when VCC2 > VCC.
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.
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
OVLATCH
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
—
—
—
4
UV
—
—
—
6
OVIN
—
—
—
—
EP
www.maximintegrated.com
FUNCTION
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.
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.
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.
Exposed Pad (TDFN Only). EP is internally connected to GND.
Leave EP unconnected or connect to GND.
Maxim Integrated │ 10
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Functional Diagrams
VCC
MR
ADJUST
MONITOR
VOLTAGE
UVTH
SET
OVTH
UV THRESHOLD
-5%, -10%, -15%
TIMEOUT
PERIOD
OPTION
UV MONITOR
OV MONITOR
GND
OV THRESHOLD
+5%, +10%, +15%
INTERNAL
REFERENCE
(RESET)/
RESET
MAX6754/MAX6755/MAX6756
( ) MAX6755 ONLY.
Figure 1. MAX6754/MAX6755/MAX6756 Functional Diagram
VCC
ADJUST
MONITOR
VOLTAGE
UVTH
SET
TIMEOUT
PERIOD
OPTION
(UV)/
UV
UV MONITOR
MR
VCC
OV
OVTH
UV THRESHOLD
-5%, -10%, -15%
OV MONITOR
GND
OV THRESHOLD
+5%, +10%, +15%
INTERNAL
REFERENCE
MAX6757/MAX6758/MAX6759
( ) MAX6758 ONLY.
Figure 2. MAX6757/MAX6758/MAX6759 Functional Diagram
www.maximintegrated.com
Maxim Integrated │ 11
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Functional Diagrams (continued)
VCC
MR
ADJUST
MONITOR
VOLTAGE
UVTH
OVTH
SET
UV THRESHOLD
-5%, -10%, -15%
UV MONITOR
TIMEOUT
PERIOD
OPTION
OV
CIRCUIT
(UV)/
UV
OV
OV MONITOR
OVLATCH
OV THRESHOLD
+5%, +10%, +15%
INTERNAL
REFERENCE
GND
UVTH
VCC2
ADJUST
MONITOR
VOLTAGE
MAX6760/
MAX6761/MAX6762
OVTH
UV MONITOR
OV MONITOR
( ) MAX6761 ONLY.
Figure 3. MAX6760/MAX6761/MAX6762 Functional Diagram
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Maxim Integrated │ 12
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Functional Diagrams (continued)
UVIN
MAX6763/MAX6764
UV
UVTH
VCC
UV MONITOR
INTERNAL
REFERENCE
0.5V
GND
OVTH
OV
OVIN
OV MONITOR
Figure 4. MAX6763/MAX6764 Functional Diagram
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 undervoltage/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
www.maximintegrated.com
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. Connect
VCC of the MAX6756 to an RC filter to ensure proper
operation during extreme transition events. A 100Ω resistor in series with a 0.1µF bypass capacitor is sufficient for
most applications. See Figure 9 for more details.
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.
0.4255V +5%
+10%
+15%
V+
OV
R1
VCC2
(UV)
UV
R2
0.4255V -5%
-10%
-15%
MAX6760/MAX6761/MAX6762
(SUFFIXES LA, TA, RA, ZA, WA, AA)
( ) MAX6761 ONLY.
Figure 5. Setting the Threshold Voltage of VCC2
Maxim Integrated │ 13
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Overvoltage Latch Control Input (OVLATCH)
V+
R1
UVIN
MAX6763/MAX6764
UV
UVTH
R2
VCC
UV MONITOR
INTERNAL
REFERENCE
0.5V
GND
OVTH
OV
OVIN
OV MONITOR
R3
OVERVOLTAGE ASSERTS WHEN
UNDERVOLTAGE ASSERTS WHEN
V+ x R3
R1 + R2 + R3
> 0.5V
V+ x (R2 + R3)
R1 + R2 + R3
< 0.5V
Figure 6. Setting the Undervoltage/Overvoltage Window
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).
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.
MR
tD-MR
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 internally pulled to VCC with a 26kΩ resistor.
tMR_P
RESET, UV
Figure 7a. Manual RESET/RESET Timing Diagram
VCC
tD-UV
RESET, UV
tRP
(RESET IS THE COMPLEMENT OF RESET)
Figure 7b. VCC/RESET, UV Timing Diagram
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Maxim Integrated │ 14
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Applications Information
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.
Microprocessor Monitoring
Figure 8 shows a microprocessor monitoring circuit. An
overvoltage condition on either the core or I/O supply
CORE
DC-DC
CONVERTER
FUSE
CORE
I/O
DC-DC
CONVERTER
UNREGULATED
POWER SOURCE
I/O
mP
MAX6760
VCC2
MR
PUSH BUTTON
VCC
100kΩ
SCR
100kΩ
OVLATCH
GND
UV
RESET
SET
OV
NMI
100kΩ
*C1
1mF
*OPTIONAL.
Figure 8. Microprocessor Monitoring
VCC
VCC
VCC
100Ω
SET
VCC
0.1µF
10kΩ
MAX6756
GND
MR
µP
RESET
RESET
NMI
Figure 9. MAX6756 Input Filter Connection
www.maximintegrated.com
Maxim Integrated │ 15
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Table 1. Window Threshold Voltage
Suffix Guide Single Fixed VCC
(MAX6754—MAX6759)
PART NO. SUFFIX
VCC NOMINAL SYSTEM VOLTAGE (V)
L
5.0
T
3.3
R
3.0
Z
2.5
W
1.8
Table 3. Timeout Period Suffix Guide
TIMEOUT
PERIOD SUFFIX
ACTIVE TIMEOUT PERIOD
MIN (ms)
Typ (ms)
MAX (ms)
D0
—
0.02
—
D3
100
185
320
Standard Versions Table
PART
Table 2. Window Threshold Voltage
Suffix Guide Dual Fixed/Adjustable
(MAX6760/MAX6761/MAX6762)
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*
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
PART
MAX6759UTLD0
MAX6759UTLD3
MAX6759UTTD0
MAX6759UTTD3
MAX6759UTZD0
MAX6759UTZD3
MAX6759UTWD0
MAX6759UTWD3
MAX6760TALTD3
MAX6760TALAD3
MAX6760TATZD3
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
*See the Setting the Adjustable Nominal Voltage Threshold section.
www.maximintegrated.com
Maxim Integrated │ 16
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Selector Guide
PUSH-PULL PUSH-PULL OPEN-DRAIN PUSH-PULL PUSH-PULL OPEN-DRAIN PUSH-PULL
RESET
RESET
RESET
UV
UV
UV
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
Ordering Information
PART
TEMP RANGE
Chip Information
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
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
Devices are available in both leaded and lead(Pb)-free packaging. Specify lead-free by replacing “-T” with “+T” when ordering.
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
6 SOT23
8 TDFN
U5+1
U6-1
T833-2
21-0057
21-0058
21-0137
90-0174
90-0175
90-0059
/V denotes an automotive qualified part.
Insert the threshold level suffixes for VCC and VCC2 (see Table 1
and Table 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 (see 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.
www.maximintegrated.com
Maxim Integrated │ 17
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
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
6
11/15
Updated package code for 5 SOT23 in Ordering Information section
7
3/16
Re-added Standard Versions table
17–18
8
6/16
Removed top mark information from Standard Versions table
17–18
9
3/17
Moved Ordering Information and Selector Guide to end of data sheet and Pin
Configurations to before Pin Description table; updated Pin Description (row 1),
Supply Voltages section, and added Figure 9
10
11/17
Added AEC statement to Benefits and Features section
1, 16–18
19
1, 9, 13, 16, 17
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
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 specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
© 2017 Maxim Integrated Products, Inc. │ 18
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