MAX6710AUT+T [MAXIM]
Power Supply Support Circuit, Adjustable, 4 Channel, BICMOS, PDSO6, LEAD FREE, MO-178AB, SOT-23, 6 PIN;
| 型号： | MAX6710AUT+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Power Supply Support Circuit, Adjustable, 4 Channel, BICMOS, PDSO6, LEAD FREE, MO-178AB, SOT-23, 6 PIN 信息通信管理 光电二极管 |
| 文件： | 总10页 (文件大小：1304K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
General Description
Features
● Monitor Up to Four Power-Supply Voltages
The MAX6700/MAX6710 precision triple/quad voltage
microprocessor (μP) supervisory circuits monitor up to
four system-supply voltages and assert a single reset
if any supply voltage drops below its preset threshold.
These devices significantly reduce system size and
component count while improving reliability compared to
separate ICs or discrete components.
● Precision Factory-Set Reset Threshold Options for
5.0V, 3.3V, 3.0V, 2.5V, and 1.8V Supplies
● Adjustable Voltage Threshold Monitors Down to
0.62V with 1.5% Accuracy
● Low 35μA Supply Current
● Open-Drain RESET Output with 10μA Internal Pullup
● 5μs Propagation Delay (MAX6700)
● 140ms (min) Reset Timeout Period (MAX6710)
● RESET Valid to IN1 = 1V or IN2 = 1V
● Immune to Short Monitored Supply Transients
● Guaranteed from -40°C to +85°C
A variety of factory-trimmed threshold voltages are available
to accommodate different supply voltages and tolerances with
minimal external component requirements. The MAX6710
includes internally fixed options for monitoring 5.0V, 3.3V,
3.0V, 2.5V, and 1.8V supplies with -5% or -10% tolerances.
The MAX6710 is also available with one to three adjustable
threshold options to monitor voltages down to 0.62V. The
MAX6700 monitors three voltages with adjustable thresholds
down to 0.62V.
● Small 6-Pin SOT23 Package
A single active-low output asserts when any monitored
input falls below its associated threshold. The open-drain
output has a weak internal pullup (10μA) to IN2. For the
MAX6710, reset remains low for the reset timeout period
(140ms min) after all voltages rise above the selected
threshold. The MAX6700 acts as a voltage detector with
a propagation delay of 5μs after all monitored voltages
exceed their thresholds. The output remains valid as
long as either IN2 or IN2 input voltage remains above 1V
Ordering Information
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +105°C
-40°C to +105°C
PIN-PACKAGE
6 SOT23-6
6 SOT23-6
6 SOT23-6
6 SOT23-6
MAX6700UT-T
MAX6710_UT-T
MAX6710FUT-T
MAX6710KUT-T
Insert the desired suffix letter from the Selector Guide into the
blank to complete the part number. There is a 2500 piece mini-
mum order increment requirement on the SOT package. These
devices are available in tape-and-reel only.
(MAX6710) or V
is above 2V (MAX6700/MAX6710Q).
CC
The MAX6700/MAX6710 are available in a small 6-pin
SOT23 package and operate over the extended (-40°C to
+85°C) temperature range.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Applications
Typical Operating Circuit
● Telecommunications
● High-End Printers
MAX6700
MAX6710
IN1
● Desktop and Notebook Computers
● Data Storage Equipment
● Networking Equipment
● Industrial Equipment
● Set-Top Boxes
IN2
SUPPLIES
TO BE
MONITORED
µP
RESET
IN3
IN4
● Servers/Workstations
GND
Selector Guide with top marks appears at end of data sheet.
Pin Configuration appears at end of data sheet.
19-2324; Rev 5; 8/16
MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
Absolute Maximum Ratings
V
, IN_, RESET to GND.......................................-0.3V to +6V
Operating Temperature Range......................... -40°C to +105°C
Storage Temperature Range............................ -65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
CC
Continuous RESET Current...............................................20mA
Continuous Power Dissipation
6-Pin SOT23 (derate 8.7mW/°C above +70°C) .......695.7mW
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
(V
= 1V to 5.5V, T = -40°C to +105°C, unless otherwise noted. Typical values are at V
= 3.0V to 3.3V, T = +25°C.) (Note 1)
IN2 A
IN2
A
PARAMETER
SYMBOL
CONDITIONS
MIN
2.0
1.0
1.2
TYP
MAX
5.5
UNITS
V
MAX6700/MAX6710Q
CC
Operating Voltage Range
(Note 2)
T
= 0°C to +105°C
5.5
V
A
V
All others (Note 3)
IN2
T = -40°C to +105°C
5.5
A
IN_ = nominal input voltage (for 1.8V, 2.5V, and
5.0V supplies)
25
55
45
IN2 = nominal input voltage (for 3.0V and 3.3V
supplies) (Note 4)
115
I
IN_
Input Current
µA
V
V
= 0 to 0.85V (for adjustable thresholds)
1
IN1
, V
= 0 to 0.85V (for adjustable
IN3 IN4
0.2
thresholds)
I
MAX6700/MAX6710Q only, V = 5.5V
CC
35
65
CC
5V (-5%)
4.50
4.25
3.00
2.85
2.70
2.55
2.25
2.13
1.62
1.53
4.63
4.38
3.08
2.93
2.78
2.63
2.32
2.19
1.67
1.58
4.75
4.50
3.15
3.00
2.85
2.70
2.38
2.25
1.71
1.62
5V (-10%)
3.3V (-5%)
3.3V (-10%)
3.0V (-5%)
3.0V (-10%)
2.5V (-5%)
2.5V (-10%)
1.8V (-5%)
1.8V (-10%)
Threshold Voltage
V
V
IN_ decreasing
IN_ decreasing
V
V
TH
Adjustable Threshold
0.611 0.620 0.629
0.3
TH
Reset Threshold Hysteresis
V
IN_ increasing relative to IN_ decreasing
%V
TH
HYST
Reset Threshold Temperature
Coefficient
TCV
60
ppm/°C
TH
IN_ to Reset Delay
Propagation Delay
Reset Timeout Period
t
V
falling at 10mV/µs from V to (V - 50mV)
30
5
µs
µs
RD
IN
TH
TH
t
MAX6700 only
MAX6710 only
PD
RP
t
140
200
280
ms
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MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
Electrical Characteristics (continued)
(V
= 1V to 5.5V, T = -40°C to +105°C, unless otherwise noted. Typical values are at V
= 3.0V to 3.3V, T = +25°C.) (Note 1)
IN2 A
IN2
A
PARAMETER
SYMBOL
CONDITIONS
= 5V, I = 2mA
MIN
TYP
MAX
0.3
UNITS
V
V
V
V
, V
IN2 CC
SINK
RESET Output Low
RESET Output High
V
, V
= 2.5V, I = 1.2mA
SINK
0.4
V
OL
IN2 CC
= 1.0V, I
= 50µA, T = 0°C to +105°C
0.3
IN2
SINK
A
≥ 2.0V, I
= 6µA, RESET
CC
SOURCE
0.8 x V
0.8 x V
CC
deasserted (MAX6700/MAX6710Q)
V
V
OH
V
≥ 2.0V, I = 6µA, RESET
IN2
SOURCE
IN2
deasserted
RESET Output High Source
Current
I
V
≥ 2.0V, RESET deasserted
10
µA
OH
IN2
Note 1: 100% production tested at T = +25°C. Limits over temperature guaranteed by design.
A
Note 2: The devices are powered from IN2 or V
(for MAX6700/MAX6710Q).
CC
Note 3: The RESET output is guaranteed to be in the correct state for IN1 or IN2 down to 1V.
Note 4: 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
= V
= 3.0V, T = +25°C)
IN2
CC A
NORMALIZED THRESHOLD ERROR
vs. TEMPERATURE
IN2 INPUT CURRENT vs. TEMPERATURE
IN2 INPUT CURRENT vs. IN2 VOLTAGE
60
0.10
0.08
0.06
0.04
0.02
0
90
80
70
60
50
40
30
20
10
0
V
IN2
= 3.3V
58
56
54
52
50
48
46
44
42
40
V
V
= 3.3V
= 3V
IN2
V
TH
= 1.8V
-0.02
-0.04
-0.06
-0.08
-0.10
IN2
-40
-15
10
35
60
85
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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MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
Typical Operating Characteristics (continued)
(V
= V
= 3.0V, T = +25°C)
IN2
CC A
MAXIMUM IN_ TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE
RESET DELAY vs. RESET THRESHOLD
RESET PULLUP AND PULLDOWN
OVERDRIVE (IN_ DECREASING)
RESPONSE (C = 47pF)
L
MAX6700 toc06
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
IN_
100mV/div
AC-COUPLED
RESET ASSERTED
ABOVE THIS LINE
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
vs. TEMPERATURE
RESET PROPAGATION DELAY (MAX6700)
RESET TIMEOUT DELAY (MAX6710)
MAX6700 toc08
MAX6700 toc09
232
231
230
229
228
227
226
225
224
223
222
221
220
IN_
2V/div
IN_
2V/div
RESET
2V/div
RESET
2V/div
-40
-15
10
35
60
85
2µs/div
40µs/div
TEMPERATURE (°C)
Pin Description
PIN
NAME
IN1
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 is the power-supply input for the device and is not a monitored voltage.
1
IN2
2
V
CC
CC
3
4
5
IN3
IN4
Input Voltage 3. See the Selector Guide for monitored voltages.
Input Voltage 4. See the Selector Guide for monitored voltages.
Ground
GND
Active-Low, Reset Output. RESET goes low when any input goes below its specified threshold. After all
6
RESET 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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MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
V
CC
V
CC
V
CC
V
CC
IN1
IN3
IN4
MAX6700
V
CC
RESET
UVLO
0.62V
REFERENCE
Figure 1. MAX6700 Functional Diagram
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
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.
a separate unmonitored power-supply input (V ) and three
CC
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
Typical Operating Characteristics for a glitch immunity
graph.
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/
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MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
ALL DEVICES ARE POWERED FROM IN2, V (3.0V/3.3V). RESET IS VALID IF V OR V IS GREATER THAN 1V, OR IF V IS GREATER THAN 2V (MAX6710Q ONLY)
CC
IN1
IN2
CC
IN1
(ADJ)
MAX6710
IN2, V
CC
(3.3V/3V)
IN2, V
CC
RESET
TIME-
OUT
NOR
GATE
(200ms)
IN3
(2.5V/1.8V)
UVLO
IN4
(ADJ)
0.62V
REFERENCE
Figure 2. MAX6710 Functional Diagram
The output is open drain with a weak internal pullup to
the monitored IN2 or V supply (10μA typ). For many
Applications Information
CC
Reset Output
applications no external pullup resistor is required to interface
with other logic devices. An external pullup resistor to any
voltage from 0 to 5.5V can overdrive the internal pullup if
interfacing to different logic-supply voltages (Figure 4). Internal
circuitry prevents reverse current flow from the external pullup
voltage to IN2.
The MAX6700 RESET output asserts low when any
monitored IN_ voltage drops below its specified reset
threshold and remains low for the propagation delay (5μs) after
all inputs exceed their thresholds (Figure 3). The MAX6710
provides an extended reset timeout period of 140ms (min).
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MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
V
powers the MAX6700/MAX6710Q and is not a
CC
IN_
TH_
monitored voltage. IN2 powers all other options for the
MAX6710 and is a monitored voltage. When any supply
drops below its threshold, the reset output asserts low
and remains low while either IN1 or IN2 is above 1.0V.
V
V
TH_
Adjustable Thresholds
RESET
90%
The MAX6700/MAX6710 offer several monitor options
with adjustable reset thresholds. The threshold voltage at
each adjustable IN_ input is typically 0.62V. To monitor a
voltage > 0.62V, connect a resistor-divider network to the
circuit as shown in Figure 5.
10%
t
t
RP
RD
Figure 3. RESET Output Timing Diagram
V
= 0.62V x (R1 + R2) / R2
INTH
or, solved in terms of R1:
R1 = R2 ((V
/ 0.62V) - 1)
INTH
IN2 = +3.3V
+5V
Because the devices have a guaranteed input current of
±0.2μA (±0.4μA for IN1) on their adjustable inputs, resistor
values up to 100kΩ can be used for R2 with < 1% error.
The MAX6700/MAX6710Q include an internal voltage
clamp (1.5V typ) at each of the adjustable voltage inputs.
An input voltage higher than 1.5V induces a higher input
current.
100kΩ
IN2
V
CC
RESET
RESET
Unused Inputs
Connect unused monitor inputs to a supply voltage
greater in magnitude than their specified threshold
voltages. For unused IN_ adjustable inputs, connect a
1MΩ series resistor between the unused input and IN2
MAX6700
MAX6710
GND
GND
(or V ) to limit the bias current. Use IN2 for normal
CC
operation (device power-supply pin). Do not connect
unused monitor inputs to ground or allow them to float.
Figure 4. Interfacing to Different Logic-Supply Voltage
Adding Manual Reset Capability
(MAX6710)
V
Figure 6 shows an application circuit adding manual reset
to the MAX6710. Depressing the pushbutton switch short-
circuits the analog input to ground and initiates a RESET
pulse. The switch must be open for at least 140ms in
order to deassert the RESET output. No external switch
debounce is required. Use a small capacitor to improve
noise immunity when using long leads from the push-
button switch to the adjustable input.
INTH
R1
R2
Power-Supply Bypassing and Grounding
The MAX6700/MAX6710 are normally powered from the
V
= 0.62V
R1 = R2
REF
monitored IN2 or from the V
supply input. All monitored
CC
V
0.62V
INTH
- 1
(
)
inputs are immune to short supply transients. For higher
immunity in noisy applications, connect a 0.1μF bypass
capacitor from the IN2 input to ground. Add capacitance
to IN1, IN3, and IN4 to increase their noise immunity.
Figure 5. Setting the Auxiliary Monitor
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MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
Pin Configuration
IN1
IN2
IN3
TOP VIEW
MAX6710
IN1
1
2
3
6
5
4
RESET
GND
IN4
RESET
R1
MAX6700
MAX6710
IN4
(V ) IN2
CC
(ADJUSTABLE
INPUT)
R2
IN3
GND
SOT23
( ) ARE FOR MAX6700/MAX6710Q ONLY
Figure 6. Adding Manual Reset Capability
Chip Information
TRANSISTOR COUNT: 699
PROCESS: BiCMOS
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MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
Selector Guide
Nominal Input Voltage
Supply
PART**
TEMPERATURE
(SUFFIX IN
RANGE
Top Mark
IN1
(V)
IN2
(V)
IN3
(V)
IN4
(V)
Tolerance (%)
BOLD)
MAX6700UT
MAX6710AUT
MAX6710BUT
MAX6710CUT
MAX6710DUT
MAX6710EUT
MAX6710FUT
MAX6710GUT
MAX6710HUT
MAX6710IUT
MAX6710JUT
MAX6710KUT
MAX6710LUT
MAX6710MUT
MAX6710NUT
MAX6710OUT
MAX6710PUT
MAX6710QUT
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +105°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +105°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Adj*
5
V
Adj*
2.5
2.5
1.8
1.8
2.5
2.5
Adj*
Adj*
2.5
2.5
1.8
1.8
2.5
2.5
1.8
1.8
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
1.8
N/A
10
5
ABEK
AAZA
AAZB
AAZC
AAZD
AAZE
AAZF
AAZG
AAZH
AAZI
CC
3.3
5
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3
5
10
5
5
Adj*
Adj*
5
10
5
1.8
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
10
5
5
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
Adj*
10
5
AAZJ
AAZK
AAZL
AAZM
AAZN
AAZO
AAZP
AAZQ
10
5
10
5
3
3
10
5
3
V
N/A
CC
*Adjustable voltage based on 0.62V internal threshold. External threshold voltage can be set using an external resistor-divider.
**The MAX6700 acts as a voltage detector with a 5μs propagation delay. The MAX6710 serves as a microprocessor reset circuit with
a 140ms (min) reset timeout.
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.
6 SOT
U6+1
21-0058
90-0175
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MAX6700/MAX6710
Low-Voltage, High-Accuracy, Triple/Quad
Voltage μP Supervisory Circuits in SOT Package
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
DESCRIPTION
CHANGED
Added ordering information for F option, added extended temperature range
information, updated Selector Guide and Package Information sections
3
9/14
1, 2, 8, 9
4
11/15
8/16
Added MAX6710K with new limits
1, 2, 9
2–3
5
Updated MAX6710 upper operating temperature range and EC limits to 105°C
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.
2016 Maxim Integrated Products, Inc.
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