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MAX6721AUTYVD5+T

Description
supervisory circuits dual upower supervisor
CategoryPower/power management    The power supply circuit   
File Size2MB,18 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
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MAX6721AUTYVD5+T Overview

supervisory circuits dual upower supervisor

MAX6721AUTYVD5+T Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeSOT-23
package instructionLSSOP, TSOP6,.11,37
Contacts6
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresRESET THRESHOLD VOLTAGE ARE 2.188V AND 1.575V; MANUAL RESET INPUT
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 codeR-PDSO-G6
JESD-609 codee3
length2.9 mm
Number of channels2
Number of functions1
Number of terminals6
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Encapsulate equivalent codeTSOP6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply1/5 V
Certification statusNot Qualified
Maximum seat height1.45 mm
Maximum supply current (Isup)0.039 mA
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)0.8 V
surface mountYES
technologyBICMOS
Temperature levelAUTOMOTIVE
Terminal surfaceMATTE TIN
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width1.625 mm
Base Number Matches1
MAX6715A–MAX6729A/
MAX6797A
Dual/Triple, Ultra-Low-Voltage, SOT23 μP
Supervisory Circuits
General Description
The MAX6715A–MAX6729A/MAX6797A are ultra-low-
voltage microprocessor (μP) supervisory circuits designed to
monitor two or three system power-supply voltages. These
devices assert a system reset if any monitored supply falls
below its factory-trimmed or adjustable threshold and main-
tain reset for a minimum timeout period after all supplies rise
above their thresholds. The integrated dual/triple superviso-
ry circuits significantly improve system reliability and reduce
size compared to separate ICs or discrete components.
These devices monitor primary supply voltages (V
CC1
)
from 1.8V to 5.0V and secondary supply voltages (V
CC
2)
from 0.9V to 3.3V with factory-trimmed reset threshold
voltage options (see the
Reset Voltage Threshold Suffix
Guide).
An externally adjustable RSTIN input option
allows customers to monitor a third supply voltage down
to 0.62V. These devices are guaranteed to be in the cor-
rect reset output logic state when either V
CC1
or V
CC2
remains greater than 0.8V.
A variety of push-pull or open-drain reset outputs along
with watchdog input, manual-reset input, and power-fail
input/output features are available (see the Selector
Guide). Select reset timeout periods from 1.1ms to
1120ms (min) (see the
Reset Timeout Period Suffix
Guide).
The MAX6715A–MAX6729A/MAX6797A are
available in small 5-, 6-, and 8-pin SOT23 packages and
operate over the -40°C to +125°C temperature range.
● Multivoltage Systems
● Telecom/Networking
Equipment
● Computers/Servers
● Portable/Battery-
Operated Equipment
Features
● V
CC1
(Primary Supply) Reset Threshold Voltages
from 1.58V to 4.63V
● V
CC2
(Secondary Supply) Reset Threshold Voltages
from 0.79V to 3.08V
● Externally Adjustable RSTIN Threshold for Auxiliary/
Triple-Voltage Monitoring (0.62V Internal Reference)
● Watchdog Timer Option
• 35s (min) Long Startup Period
• 1.12s (min) Normal Timeout Period
● Manual-Reset Input Option
● Power-Fail Input/Power-Fail Output Option
(Push-Pull and Open-Drain Active-Low)
● Guaranteed Reset Valid Down to V
CC1
or
V
CC2
= 0.8V
● Reset Output Logic Options
● Immune to Short V
CC
Transients
● Low Supply Current 14μA (typ) at 3.6V
● Watchdog Disable Feature
● Small 5-, 6-, and 8-Pin SOT23 Packages
Ordering Information
PART
MAX6715AUT_
_D_+T
MAX6716AUT_
_D_+T
MAX6717AUK_
_D_+T
MAX6718AUK_
_D_+T
MAX6719AUT_
_D_+T
MAX6719AUT_ _D_/V+T*
TEMP RANGE
PIN-
PACKAGE
-40°C to +125°C 6 SOT23
-40°C to +125°C 6 SOT23
-40°C to +125°C 5 SOT23
-40°C to +125°C 5 SOT23
-40°C to +125°C 6 SOT23
-40°C to +125°C 6 SOT23
Applications
● Industrial Equipment
● Printers/Fax Machines
● Set-Top Boxes
Typical Operating Circuit
UNREGULATED
DC
DC-DC OUT2
CONVERTER
IN
OUT1
V
CC1
R1
V
CC2
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
/V denotes an automotive qualified part.
*Future
product—contact factory for availability.
Note:
The first “_ _” are placeholders for the threshold voltage
levels of the devices. Desired threshold levels are set by the part
number suffix found in the Reset Voltage Threshold Suffix Guide.
The “_” after the D is a placeholder for the reset timeout delay
time. Desired delay time is set using the timeout period suffix
found in the Reset Timeout Period Suffix Guide. For example,
the MAX6716AUTLTD3-T is a dual-voltage supervisor V
TH1
=
4.625V, V
TH2
= 3.075V, and 210ms (typ) timeout period.
Ordering Information continued at end of data sheet.
Pin Configurations and Selector Guide appear at end of
data sheet.
1.8V
0.9V
MAX6715A-
MAX6729A/
MAX6797A
RST
RSTIN/PFI
WDI
PFO
MAX67_ _
MR
PUSHBUTTON
SWITCH
I/O
CORE
SUPPLY SUPPLY
RESET
I/O
NMI
µP
R2
19-0536; Rev 4; 3/14

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Description supervisory circuits dual upower supervisor Analog Switch ICs DPST Normally Closed CMOS Analog Switch Analog Switch ICs E Paper Driver Power Supply Management Circuit, Fixed, 3 Channel, BICMOS, PDSO8, ROHS COMPLIANT, SOT-23, 8 PIN Power Supply Management Circuit, Fixed, 3 Channel, BICMOS, PDSO8, ROHS COMPLIANT, SOT-23, 8 PIN Power Supply Management Circuit, Fixed, 3 Channel, BICMOS, PDSO8, ROHS COMPLIANT, SOT-23, 8 PIN
Is it Rohs certified? conform to incompatible - conform to conform to conform to
Parts packaging code SOT-23 - - SOT-23 SOT-23 SOT-23
package instruction LSSOP, TSOP6,.11,37 - - LSSOP, TSSOP8,.1 LSSOP, LSSOP, TSSOP8,.1
Contacts 6 - - 8 8 8
Reach Compliance Code compliant not_compliant - compliant compliant compliant
ECCN code EAR99 - - EAR99 EAR99 EAR99
Other features RESET THRESHOLD VOLTAGE ARE 2.188V AND 1.575V; MANUAL RESET INPUT - - RESET THRESHOLD VOLTAGE ARE 2.625V AND 1.313V; MANUAL RESET INPUT RESET THRESHOLD VOLTAGE ARE 2.925V AND 1.05V; MANUAL RESET INPUT RESET THRESHOLD VOLTAGE ARE 3.075V AND 0.833V; MANUAL RESET INPUT
Adjustable threshold NO - - NO NO NO
Analog Integrated Circuits - Other Types POWER SUPPLY MANAGEMENT CIRCUIT 4PST - POWER SUPPLY MANAGEMENT CIRCUIT POWER SUPPLY MANAGEMENT CIRCUIT POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 code R-PDSO-G6 - - R-PDSO-G8 R-PDSO-G8 R-PDSO-G8
length 2.9 mm - - 2.9 mm 2.9 mm 2.9 mm
Number of channels 2 - - 3 3 3
Number of functions 1 - - 1 1 1
Number of terminals 6 - - 8 8 8
Maximum operating temperature 125 °C - - 125 °C 125 °C 125 °C
Minimum operating temperature -40 °C - - -40 °C -40 °C -40 °C
Package body material PLASTIC/EPOXY - - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code LSSOP - - LSSOP LSSOP LSSOP
Package shape RECTANGULAR - - RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, LOW PROFILE, SHRINK PITCH - - SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 260 NOT SPECIFIED - NOT SPECIFIED - NOT SPECIFIED
Certification status Not Qualified - - Not Qualified Not Qualified Not Qualified
Maximum seat height 1.45 mm - - 1.45 mm 1.45 mm 1.45 mm
Maximum supply voltage (Vsup) 5.5 V - - 5.5 V 5.5 V 5.5 V
Minimum supply voltage (Vsup) 0.8 V - - 0.8 V 0.8 V 0.8 V
surface mount YES - - YES YES YES
technology BICMOS - - BICMOS BICMOS BICMOS
Temperature level AUTOMOTIVE - - AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
Terminal form GULL WING - - GULL WING GULL WING GULL WING
Terminal pitch 0.95 mm - - 0.65 mm 0.65 mm 0.65 mm
Terminal location DUAL - - DUAL DUAL DUAL
Maximum time at peak reflow temperature 40 NOT SPECIFIED - NOT SPECIFIED - NOT SPECIFIED
width 1.625 mm - - 1.625 mm 1.625 mm 1.625 mm
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