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MAX6797AKASFD5+T

Description
Power Supply Management Circuit, Fixed, 3 Channel, BICMOS, PDSO8, ROHS COMPLIANT, SOT-23, 8 PIN
CategoryPower/power management    The power supply circuit   
File Size2MB,19 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric View All

MAX6797AKASFD5+T Overview

Power Supply Management Circuit, Fixed, 3 Channel, BICMOS, PDSO8, ROHS COMPLIANT, SOT-23, 8 PIN

MAX6797AKASFD5+T Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Parts packaging codeSOT-23
package instructionLSSOP,
Contacts8
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresRESET THRESHOLD VOLTAGE ARE 2.925V AND 1.05V; MANUAL RESET INPUT
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 codeR-PDSO-G8
length2.9 mm
Number of channels3
Number of functions1
Number of terminals8
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Certification statusNot Qualified
Maximum seat height1.45 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)0.8 V
surface mountYES
technologyBICMOS
Temperature levelAUTOMOTIVE
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
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
● 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
● AEC-Q100 Qualified: MAX6719AUTTWD1/V+T
Ordering Information
continued at end of data sheet.
Pin Description
and
Selector Guide
appear at end of data
sheet.
Features
Applications
● Industrial Equipment
● Printers/Fax Machines
● Set-Top Boxes
Typical Operating Circuit
UNREGULATED
DC
DC-DC OUT2
IN CONVERTER
OUT1
V
CC1
R1
V
CC2
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 6; 7/19
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