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MAX6888QETE-

Description
Supervisory Circuits Quad Power-Supply Supervisor
Categorysemiconductor    Power management   
File Size129KB,13 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX6888QETE- Overview

Supervisory Circuits Quad Power-Supply Supervisor

MAX6888QETE- Parametric

Parameter NameAttribute value
Product CategorySupervisory Circuits
ManufacturerMaxim
RoHSDetails
TypeVoltage Supervisory
Mounting StyleSMD/SMT
Package / CaseTQFN-16
Number of Inputs Monitored4 Input
Manual ResetManual Reset
Watchdog TimersWatchdog
Supply Voltage - Max5.8 V
Maximum Operating Temperature+ 85 C
Minimum Operating Temperature- 40 C
PackagingTube
Height0.73 mm
Length5 mm
Operating Supply Current900 uA
Overvoltage Threshold0.643 V, 0.643 V, 0.643 V, 0.643 V
Pd - Power Dissipation1.667 W
Factory Pack Quantity60
Supply Voltage - Min2.7 V
Undervoltage Threshold0.557 V, 0.557 V, 0.557 V, 0.557 V
Width5 mm
19-0291; Rev 2; 2/10
Hex/Quad, Power-Supply Supervisory Circuits
General Description
The MAX6887/MAX6888 multivoltage supply supervi-
sors provide several voltage-detector inputs, one watch-
dog input, and three outputs. Each voltage-detector
input offers a factory-set undervoltage and overvoltage
threshold. Manual reset and margin disable inputs offer
additional flexibility.
The MAX6887 offers six voltage-detector inputs, while
the MAX6888 offers four inputs. Output
RESET
asserts
when any input voltage drops below its respective
undervoltage threshold or manual reset
MR
is asserted.
Output
OV
asserts when any input voltage exceeds its
respective overvoltage threshold. Monitor standard
supply voltages listed in the
Selector Guide.
The MAX6887/MAX6888 offer a watchdog timer with an
initial and normal timeout periods of 102.4s and 1.6s,
respectively. Watchdog output
WDO
asserts when the
watchdog timer expires. Connect
WDO
to manual reset
input
MR
to generate resets when the watchdog timer
expires.
RESET, OV,
and
WDO
are active-low, open-
drain outputs.
The MAX6887/MAX6888 are available in a 5mm x 5mm
x 0.8mm, 16-pin thin QFN package and operate over
the extended -40°C to +85°C temperature range.
o
Hex/Quad Voltage Detectors
o
Undervoltage and Overvoltage Thresholds
o
1% Threshold Accuracy
o
Margining Disable and Manual Reset Input
o
Watchdog Timer
o
Open-Drain
RESET, OV,
and
WDO
Outputs
o
180ms (min) Reset Timeout Period
o
Few External Components
o
Small 5mm x 5mm, 16-Pin Thin QFN Packages
Features
MAX6887/MAX6888
Ordering Information
PART
MAX6887_ETE+
MAX6888_ETE+
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 Thin QFN-EP*
16 Thin QFN-EP*
Applications
Multivoltage Systems
Telecom
Networking
Servers/Workstations/Storage Systems
Note:
Insert the desired letter from the Selector Guide into the
blank to complete the part number.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP
= Exposed pad.
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
Selector Guide
PART
MAX6887AETE
MAX6887BETE
NOMINAL INPUT VOLTAGE (V)*
IN1
5.0
5.0
IN2
3.3
3.3
3.3
2.5
2.5
2.5
2.5
1.8
Adj
IN3
2.5
2.5
1.8
1.8
1.8
1.5
Adj
Adj
Adj
IN4
1.8
Adj
Adj
1.5
Adj
Adj
Adj
Adj
Adj
IN5
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
IN6
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
TOL
(%)
5
5
5
5
5
5
5
5
5
PART
MAX6887IETE
MAX6887JETE
MAX6887KETE
MAX6887LETE
NOMINAL INPUT VOLTAGE (V)*
IN1
5.0
5.0
5.0
3.3
IN2
3.3
3.3
3.3
2.5
2.5
2.5
2.5
1.8
Adj
IN3
2.5
2.5
1.8
1.8
1.8
1.5
Adj
Adj
Adj
IN4
1.8
Adj
Adj
1.5
Adj
Adj
Adj
Adj
Adj
IN5
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
IN6
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
TOL
(%)
10
10
10
10
10
10
10
10
10
MAX6887CETE 5.0
MAX6887DETE 3.3
MAX6887EETE
MAX6887FETE
3.3
3.3
MAX6887METE 3.3
MAX6887NETE 3.3
MAX6887OETE 3.3
MAX6887PETE
MAX6887RETE
3.3
Adj
MAX6887GETE 3.3
MAX6887HETE 3.3
MAX6887QETE
Adj
*See
thresholds options tables (Tables 1 and 2) for actual undervoltage and overvoltage thresholds.
Selector Guides continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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