Lead Temperature (soldering, 10s) ................................. +300°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
PARAMETER
Operating Voltage Range
(Note 2)
(V
IN2
= 1V to 5.5V, T
A
= -40°C to +105°C, unless otherwise noted. Typical values are at V
IN2
= 3.0V to 3.3V, T
A
= +25°C.) (Note 1)
SYMBOL
V
CC
V
IN2
CONDITIONS
MAX6700/MAX6710Q
All others (Note 3)
T
A
= 0°C to +105°C
T
A
= -40°C to +105°C
MIN
2.0
1.0
1.2
25
55
TYP
MAX
5.5
5.5
5.5
45
115
1
0.2
35
4.50
4.25
3.00
2.85
2.70
2.55
2.25
2.13
1.62
1.53
0.611
4.63
4.38
3.08
2.93
2.78
2.63
2.32
2.19
1.67
1.58
0.620
0.3
60
V
IN
falling at 10mV/µs from V
TH
to (V
TH
- 50mV)
MAX6700 only
MAX6710 only
140
30
5
200
280
65
4.75
4.50
3.15
3.00
2.85
2.70
2.38
2.25
1.71
1.62
0.629
V
%V
TH
ppm/°C
µs
µs
ms
V
µA
V
UNITS
IN_ = nominal input voltage (for 1.8V, 2.5V, and
5.0V supplies)
I
IN_
IN2 = nominal input voltage (for 3.0V and 3.3V
supplies) (Note 4)
V
IN1
= 0 to 0.85V (for adjustable thresholds)
V
IN3
, V
IN4
= 0 to 0.85V (for adjustable
thresholds)
MAX6700/MAX6710Q only, V
CC
= 5.5V
5V (-5%)
5V (-10%)
3.3V (-5%)
3.3V (-10%)
Threshold Voltage
V
TH
IN_ decreasing
3.0V (-5%)
3.0V (-10%)
2.5V (-5%)
2.5V (-10%)
1.8V (-5%)
1.8V (-10%)
Adjustable Threshold
Reset Threshold Hysteresis
Reset Threshold Temperature
Coefficient
IN_ to Reset Delay
Propagation Delay
Reset Timeout Period
V
TH
V
HYST
TCV
TH
t
RD
t
PD
t
RP
IN_ decreasing
IN_ increasing relative to IN_ decreasing
Input Current
I
CC
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Maxim Integrated
│ 2
MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
Electrical Characteristics (continued)
(V
IN2
= 1V to 5.5V, T
A
= -40°C to +105°C, unless otherwise noted. Typical values are at V
IN2
= 3.0V to 3.3V, T
A
= +25°C.) (Note 1)
PARAMETER
RESET
Output Low
SYMBOL
V
OL
CONDITIONS
V
IN2
, V
CC
= 5V, I
SINK
= 2mA
V
IN2
, V
CC
= 2.5V, I
SINK
= 1.2mA
V
IN2
= 1.0V, I
SINK
= 50µA, T
A
= 0°C to +105°C
RESET
Output High
V
OH
V
CC
≥ 2.0V, I
SOURCE
= 6µA,
RESET
deasserted (MAX6700/MAX6710Q)
V
IN2
≥ 2.0V, I
SOURCE
= 6µA,
RESET
deasserted
V
IN2
≥ 2.0V,
RESET
deasserted
0.8 x V
CC
0.8 x V
IN2
10
µA
MIN
TYP
MAX
0.3
0.4
0.3
V
UNITS
V
RESET
Output High Source
Current
Note
Note
Note
Note
1:
2:
3:
4:
I
OH
100% production tested at T
A
= +25°C. Limits over temperature guaranteed by design.
The devices are powered from IN2 or V
CC
(for MAX6700/MAX6710Q).
The
RESET
output is guaranteed to be in the correct state for IN1 or IN2 down to 1V.
Monitored IN2 voltage (3.3V, 3.0V) is also the device power supply. Supply current splits as follows: 25μA for the resistor
divider (for the monitored voltage) and 30μA for other circuits.
Typical Operating Characteristics
(V
IN2
= V
CC
= 3.0V, T
A
= +25°C)
NORMALIZED THRESHOLD ERROR
vs. TEMPERATURE
V
IN2
= 3.3V
MAX6700 toc03
MAX6700 toc01
MAX6700 toc02
60
58
IN2 INPUT CURRENT (µA)
56
54
52
50
48
46
44
42
40
IN2 INPUT CURRENT vs. TEMPERATURE
90
80
IN2 INPUT CURRENT (µA)
70
60
50
40
30
20
10
IN2 INPUT CURRENT vs. IN2 VOLTAGE
NORMALIZED THRESHOLD ERROR (%)
0.10
0.08
0.06
0.04
0.02
0
-0.02
-0.04
-0.06
-0.08
-0.10
V
IN2
= 3.3V
V
TH
= 1.8V
V
IN2
= 3V
-40
-15
10
35
60
85
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
IN2 VOLTAGE (V)
-40
-15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
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Maxim Integrated
│ 3
MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
Typical Operating Characteristics (continued)
(V
IN2
= V
CC
= 3.0V, T
A
= +25°C)
MAXIMUM IN_ TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE
MAX6700 toc04
MAXIMUM IN_ TRANSIENT DURATION (µs)
90
80
70
60
50
40
30
20
10
0
RESET
ASSERTED
ABOVE THIS LINE
90
80
70
RESET
DELAY (µs)
60
50
40
30
20
10
0
MAX6700 toc05
100
100
RESET
DELAY vs. RESET THRESHOLD
OVERDRIVE (IN_ DECREASING)
RESET
PULLUP AND PULLDOWN
RESPONSE (C
L
= 47pF)
MAX6700 toc06
IN_
100mV/div
AC-COUPLED
RESET
2V/div
0 100 200 300 400 500 600 700 800 900 1000
RESET THRESHOLD OVERDRIVE (mV)
0 100 200 300 400 500 600 700 800 900 1000
RESET THRESHOLD OVERDRIVE (mV)
10µs/div
RESET TIMEOUT DELAY (µs)
231
230
229
228
227
226
225
224
223
222
221
220
MAX6700 toc07
232
RESET TIMEOUT DELAY
vs. TEMPERATURE
RESET
PROPAGATION DELAY (MAX6700)
MAX6700 toc08
RESET
TIMEOUT DELAY (MAX6710)
MAX6700 toc09
IN_
2V/div
IN_
2V/div
RESET
2V/div
RESET
2V/div
-40
-15
10
35
60
85
2µs/div
TEMPERATURE (°C)
40µs/div
Pin Description
PIN
1
2
3
4
5
6
NAME
IN1
IN2
V
CC
IN3
IN4
GND
RESET
FUNCTION
Input Voltage 1. See the Selector Guide for monitored voltages.
Input Voltage 2. See the
Selector Guide
for monitored voltages. IN2 is the power-supply input for the device.
For the MAX6700/MAX6710Q, V
CC
is the power-supply input for the device and is not a monitored voltage.
Input Voltage 3. See the
Selector Guide
for monitored voltages.
Input Voltage 4. See the
Selector Guide
for monitored voltages.
Ground
Active-Low, Reset Output.
RESET
goes low when any input goes below its specified threshold. After all
inputs rise above their threshold voltage,
RESET
remains low for 5µs (MAX6700) or for 200ms (MAX6710)
before going high. The open-drain
RESET
output has a weak (10µA) internal pullup to IN2 or V
CC
.
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Maxim Integrated
│
4
MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
V
CC
V
CC
IN1
MAX6700
V
CC
V
CC
IN3
RESET
UVLO
V
CC
IN4
0.62V
REFERENCE
Figure 1. MAX6700 Functional Diagram
Detailed Description
The MAX6700/MAX6710 are very small, low-power, triple/
quad voltage μP supervisory circuits designed to maintain
system integrity in multisupply systems (Figure
1
and
Figure 2).
The MAX6710 offers several internally trimmed
undervoltage threshold options for monitoring 5.0V, 3.3V,
3.0V, 2.5V, and 1.8V supplies. The devices offer one-to-
three adjustable thresholds for monitoring voltages down
to 0.62V.
The triple/quad voltage monitors include an accurate bandgap
reference, precision comparators, and a series of internally
trimmed resistor-divider networks to set the factory-fixed reset
threshold options. The resistor networks scale the specified
IN_ reset voltages to match the internal bandgap reference/
comparator voltage. Adjustable threshold options bypass the
internal resistor networks and connect directly to one of the
comparator inputs (use an external resistor-divider network
for threshold matching). The MAX6700/MAX6710Q provide
a separate unmonitored power-supply input (V
CC
) and three
adjustable voltage inputs.
Each of the internal comparators has a typical hysteresis
of 0.3% with respect to its reset threshold. This built-in
hysteresis improves the monitor’s immunity to ambient
noise without significantly reducing threshold accuracy.
The devices are immune to short IN_ transients. See the
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