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MAX6700UT+T |MAX6700UTTMAXIMN/a53avaiLow-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT Package
MAX6710BUT+T |MAX6710BUTTMAXIMN/a1663avaiLow-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT Package
MAX6710EUT+TMAXIMN/a1967avaiLow-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT Package
MAX6710FUT+TMAXIMN/a4184avaiLow-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT Package
MAX6710IUT+T |MAX6710IUTTMAXIMN/a278avaiLow-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT Package
MAX6710KUT+TMAXIMN/a7500avaiLow-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT Package
MAX6710OUT+T |MAX6710OUTTMAXIMN/a592avaiLow-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT Package
MAX6710QUTMAXN/a1305avaiLow-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT Package


MAX6710KUT+T ,Low-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT PackageMAX6700/MAX6710 Low-Voltage, High-Accuracy, Triple/QuadVoltage μP Supervisory Circuits in SOT Packa ..
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MAX6710OUT+T ,Low-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT PackageElectrical Characteristics(V = 1V to 5.5V, T = -40°C to +105°C, unless otherwise noted. Typical val ..
MAX6710QUT ,Low-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT PackageElectrical Characteristics(V = 1V to 5.5V, T = -40°C to +105°C, unless otherwise noted. Typical val ..
MAX6711REXS+T ,4-Pin SC70 Microprocessor Reset Circuits with Manual Reset InputApplicationsbe ordered in 2.5k or 10k increments. Order MAX6711_EXS-T for 2.5k reels and MAX6711_EX ..
MAX6711REXS-T ,Microprocessor reset circuit with manual reset input. Reset threshold 2.63V. Output type active-low push-pull reset.ELECTRICAL CHARACTERISTICS(V = full range, T = -40°C to +125°C, unless otherwise noted. Typical val ..
MB3775 ,SWITCHING REGULATOR CONTROLLERFUJITSU SEMICONDUCTORDS04-27204-3EDATA SHEETASSPSWITCHING REGULATOR CONTROLLERMB3775LOW VOLTAGE DUA ..
MB3775PF , SWITCHING REGULATOR CONTROLLER
MB3776 ,Switching Regulator ControllerFEATURES• Wide supply voltage range: (2 V to 15 V)• Wide oscillation frequency range, high-frequenc ..
MB3776A ,Switching Regulator ControllerFUJITSU SEMICONDUCTORDS04-27201-3EDATA SHEETASSP For Power Supply
MB3776AP ,Switching Regulator ControllerFEATURES• Wide supply voltage range: (2 V to 15 V)• Wide oscillation frequency range, high-frequenc ..
MB3776APF ,Switching Regulator ControllerFUJITSU SEMICONDUCTORDS04-27201-3EDATA SHEETASSP For Power Supply


MAX6700UT+T-MAX6710BUT+T-MAX6710EUT+T-MAX6710FUT+T-MAX6710IUT+T-MAX6710KUT+T-MAX6710OUT+T-MAX6710QUT
Low-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT Package
General Description
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.
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.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 (MAX6710) or VCC is above 2V (MAX6700/MAX6710Q).
The MAX6700/MAX6710 are available in a small 6-pin SOT23 package and operate over the extended (-40°C to +85°C) temperature range.
Applications
●Telecommunications●High-End Printers●Desktop and Notebook Computers●Data Storage Equipment●Networking Equipment●Industrial Equipment●Set-Top Boxes●Servers/Workstations
Features
●Monitor Up to Four Power-Supply Voltages●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●Small 6-Pin SOT23 Package
Pin Configuration appears at end of data sheet.
Selector Guide with top marks appears at end of data sheet.

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.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
PARTTEMP RANGEPIN-PACKAGE
MAX6700UT-T
-40°C to +85°C 6 SOT23-6
MAX6710_UT-T
-40°C to +85°C 6 SOT23-6
MAX6710FUT-T-40°C to +105°C 6 SOT23-6
MAX6710KUT-T-40°C to +105°C 6 SOT23-6
MAX6700
MAX6710

IN1
IN2
IN3
IN4
RESET
GND
SUPPLIES
TO BE
MONITORED
MAX6700/MAX6710Low-Voltage, High-Accuracy, Triple/QuadVoltage μP Supervisory Circuits in SOT Package
Typical Operating Circuit
Ordering Information
VCC, IN_, RESET to GND .......................................-0.3V to +6V
Continuous RESET Current ...............................................20mAContinuous Power Dissipation 6-Pin SOT23 (derate 8.7mW/°C above +70°C) .......695.7mW
Operating Temperature Range .........................-40°C to +105°CStorage Temperature Range ............................-65°C to +150°C
Junction Temperature ......................................................+150°CLead Temperature (soldering, 10s) .................................+300°C
(VIN2 = 1V to 5.5V, TA = -40°C to +105°C, unless otherwise noted. Typical values are at VIN2 = 3.0V to 3.3V, TA = +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Operating Voltage Range(Note 2)
VCCMAX6700/MAX6710Q2.05.5VIN2All others (Note 3)TA = 0°C to +105°C1.05.5
TA = -40°C to +105°C1.25.5
Input CurrentIIN_
IN_ = nominal input voltage (for 1.8V, 2.5V, and 5.0V supplies)2545
IN2 = nominal input voltage (for 3.0V and 3.3V supplies) (Note 4)55115
VIN1 = 0 to 0.85V (for adjustable thresholds)1
VIN3, VIN4 = 0 to 0.85V (for adjustable thresholds)0.2
ICCMAX6700/MAX6710Q only, VCC = 5.5V3565
Threshold VoltageVTHIN_ decreasing
5V (-5%)4.504.634.75
5V (-10%)4.254.384.50
3.3V (-5%)3.003.083.15
3.3V (-10%)2.852.933.00
3.0V (-5%)2.702.782.85
3.0V (-10%)2.552.632.70
2.5V (-5%)2.252.322.38
2.5V (-10%)2.132.192.25
1.8V (-5%)1.621.671.71
1.8V (-10%)1.531.581.62
Adjustable ThresholdVTHIN_ decreasing0.6110.6200.629V
Reset Threshold HysteresisVHYSTIN_ increasing relative to IN_ decreasing0.3%VTH
Reset Threshold Temperature CoeficientTCVTH60ppm/°C
IN_ to Reset DelaytRDVIN falling at 10mV/µs from VTH to (VTH - 50mV)30µs
Propagation DelaytPDMAX6700 only5µs
Reset Timeout PeriodtRPMAX6710 only140200280ms
MAX6700/MAX6710Low-Voltage, High-Accuracy, Triple/QuadVoltage μP Supervisory Circuits in SOT Package
Absolute Maximum Ratings

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
(VIN2 = 1V to 5.5V, TA = -40°C to +105°C, unless otherwise noted. Typical values are at VIN2 = 3.0V to 3.3V, TA = +25°C.) (Note 1)
Note 1:
100% production tested at TA = +25°C. Limits over temperature guaranteed by design.
Note 2:
The devices are powered from IN2 or VCC (for MAX6700/MAX6710Q).
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.
(VIN2 = VCC = 3.0V, TA = +25°C)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

RESET Output LowVOL
VIN2, VCC = 5V, ISINK = 2mA0.3VIN2, VCC = 2.5V, ISINK = 1.2mA0.4
VIN2 = 1.0V, ISINK = 50µA, TA = 0°C to +105°C0.3
RESET Output HighVOH
VCC ≥ 2.0V, ISOURCE = 6µA, RESET deasserted (MAX6700/MAX6710Q)0.8 x VCCVIN2 ≥ 2.0V, ISOURCE = 6µA, RESET
deasserted0.8 x VIN2
RESET Output High Source
CurrentIOHVIN2 ≥ 2.0V, RESET deasserted10µA1.01.50.52.02.53.03.54.04.55.05.5
IN2 INPUT CURRENT vs. IN2 VOLTAGE

MAX6700 toc02
IN2 VOLTAGE (V)
IN2 INPUT CURRENT (µA)
NORMALIZED THRESHOLD ERROR
vs. TEMPERATURE
MAX6700 toc03
TEMPERATURE (°C)
NORMALIZED THRESHOLD ERROR (%)
VTH = 1.8V
VIN2 = 3.3V
IN2 INPUT CURRENT vs. TEMPERATURE
MAX6700 toc01
TEMPERATURE (°C)
IN2 INPUT CURRENT (µA)
VIN2 = 3.3V
VIN2 = 3V
MAX6700/MAX6710Low-Voltage, High-Accuracy, Triple/QuadVoltage μP Supervisory Circuits in SOT Package
Electrical Characteristics (continued)
Typical Operating Characteristics
(VIN2 = VCC = 3.0V, TA = +25°C)
PINNAMEFUNCTION
IN1Input Voltage 1. See the Selector Guide for monitored voltages. IN2Input Voltage 2. See the Selector Guide for monitored voltages. IN2 is the power-supply input for the device. For the MAX6700/MAX6710Q, VCC is the power-supply input for the device and is not a monitored voltage.VCCIN3Input Voltage 3. See the Selector Guide for monitored voltages. IN4Input Voltage 4. See the Selector Guide for monitored voltages. GNDGroundRESETActive-Low, Reset Output. RESET goes low when any input goes below its speciied 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 VCC.
MAX6700 toc04
MAXIMUM IN_ TRANSIENT DURATION (µs)
RESET ASSERTED
ABOVE THIS LINE
RESET THRESHOLD OVERDRIVE (mV)
MAXIMUM IN_ TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE

MAX6700 toc05
RESET THRESHOLD OVERDRIVE (mV)
RESET DELAY vs. RESET THRESHOLD
OVERDRIVE (IN_ DECREASING)

RESET
DELAY (µs)
IN_
100mV/div
AC-COUPLED
10µs/div
MAX6700 toc06
RESET PULLUP AND PULLDOWN
RESPONSE (CL = 47pF)

RESET
2V/div
MAX6700 toc07
TEMPERATURE (°C)
RESET TIMEOUT DELAY
vs. TEMPERATURE
RESET TIMEOUT DELAY (µs)
2µs/div
MAX6700 toc08
RESET
2V/div
RESET PROPAGATION DELAY (MAX6700)

IN_
2V/div
40µs/div
MAX6700 toc09
RESET
2V/div
IN_
2V/div
RESET TIMEOUT DELAY (MAX6710)

MAX6700/MAX6710Low-Voltage, High-Accuracy, Triple/QuadVoltage μP Supervisory Circuits in SOT Package
Typical Operating Characteristics (continued)
Pin Description
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
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 (VCC) 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
Typical Operating Characteristics for a glitch immunity graph.
Figure 1. MAX6700 Functional Diagram
IN1
IN3
IN4
0.62V
REFERENCE
VCC
RESET
MAX6700

VCC
VCC
VCC
VCC
UVLO
MAX6700/MAX6710Low-Voltage, High-Accuracy, Triple/QuadVoltage μP Supervisory Circuits in SOT Package
Applications Information
Reset Output

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).
The output is open drain with a weak internal pullup to the monitored IN2 or VCC supply (10μA typ). For many
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.
Figure 2. MAX6710 Functional Diagram
IN1
(ADJ)
IN2, VCC
(3.3V/3V)
IN3
(2.5V/1.8V)
IN4
(ADJ)
0.62V
REFERENCE
NOR
GATE
TIME-
OUT
(200ms)
IN2, VCC
RESET
MAX6710

ALL DEVICES ARE POWERED FROM IN2, VCC (3.0V/3.3V). RESET IS VALID IF VIN1 OR VIN2 IS GREATER THAN 1V, OR IF VCC IS GREATER THAN 2V (MAX6710Q ONLY)
UVLO
MAX6700/MAX6710Low-Voltage, High-Accuracy, Triple/QuadVoltage μP Supervisory Circuits in SOT Package
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