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MAX6339IUT-T

Description
Supervisory Circuits Quad Voltage P Supervisory Circuit in SOT Package
CategoryPower/power management    The power supply circuit   
File Size280KB,9 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX6339IUT-T Overview

Supervisory Circuits Quad Voltage P Supervisory Circuit in SOT Package

MAX6339IUT-T Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeSOIC
package instructionMO-178AB, SOT-23, 6 PIN
Contacts6
Reach Compliance Codenot_compliant
ECCN codeEAR99
Factory Lead Time1 week
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G6
JESD-609 codee4
length2.9 mm
Humidity sensitivity level1
Number of channels4
Number of functions1
Number of terminals6
Maximum operating temperature85 °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)245
power supply1/5.5 V
Certification statusNot Qualified
Maximum seat height1.45 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)1 V
Nominal supply voltage (Vsup)2.5 V
surface mountYES
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceNickel/Palladium/Gold (Ni/Pd/Au)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width1.625 mm
19-1756; Rev 3; 12/05
Quad Voltage µP Supervisory Circuit
in SOT Package
General Description
The MAX6339 is a precision quad voltage monitor with
microprocessor (µP) supervisory reset timing. The device
can monitor up to four system supply voltages without
any external components and asserts a single reset if any
supply voltage drops below its preset threshold. The
device significantly reduces system size and component
count while improving reliability compared to separate
ICs or discrete components.
A variety of factory-trimmed threshold voltages are avail-
able to accommodate different supply voltages and toler-
ances with minimal external component requirements.
The selection includes internally fixed options for monitor-
ing +5.0V, +3.3V, +3.0V, +2.5V, +1.8V, and -5.0V sup-
plies with -5% and/or -10% tolerances. The device is also
available with one or two user-adjustable threshold
options if non-standard thresholds are desired (use exter-
nal resistor-divider network).
The quad monitor provides a single active-low reset out-
put that is asserted when any monitored input is below its
associated threshold. The output is open drain with a
weak internal pullup (10µA) to IN2. Reset remains low for
a reset timeout period (140ms min) after all voltages are
above the selected thresholds. The output is valid as long
as either the IN1 or IN2 input voltage remains > 1V.
The MAX6339 is available in a small 6-pin SOT23 pack-
age and operates over the extended (-40°C to +85°C)
temperature range.
Features
Monitors Four Power-Supply Voltages
Precision Factory-Set Reset Threshold Options
for +5.0V, +3.3V, +3.0, +2.5V, +1.8V, and -5.0V
Supplies
User-Adjustable Voltage Monitoring Threshold
Options
Low 55µA Supply Current
Open-Drain
RESET
Output with 10µA Internal
Pullup
140ms (min) Reset Timeout Period
RESET
Valid to IN1 = 1V or IN2 = 1V
Immune to Short Monitored Supply Transients
No External Components Required
Guaranteed from -40°C to +85°C
Small 6-Pin SOT23 Package
MAX6339
Ordering Information
PART
MAX6339_UT-T*
TEMP. RANGE
-40°C TO +85°C
PIN-PACKAGE
6 SOT23-6
________________________Applications
Telecommunications
High-End Printers
Desktop and Network Computers
Data Storage Equipment
Networking Equipment
Industrial Equipment
Set-Top Boxes
*Insert
the desired letter from the Selector Guide into the blank
to complete the part number. There is a 2500 piece minimum
order increment requirement on the SOT package and 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.
Typical Operating Circuit
IN1
SUPPLIES
TO BE
MONITORED
IN2
IN3
IN4
MAX6339
µP
RESET
GND
Pin Configuration appears at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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