Texas Instruments LMV7231 Handleiding
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Controller
(FPGA)
+
-
+
-
Channel 1
UV
1
OV6
OV5
OV4
OV3
OV2
V+
OV1
+IN1
-IN1
GND
AO
CO1
*
*
COPOL
UV6
UV5
UV4
UV3
UV2
UV1
* Open Drain
AOSEL
*
OV1
Channel 6
+IN6
-IN6
CO6
+400mV
REF
LMV7231
COPOL
REF
UV6OV6
REF
Monitored Voltage #1
Monitored Voltage #6
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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
LMV7231
SNOSB45F–FEBRUARY2010–REVISEDJANUARY2016
LMV7231HexWindowComparatorWith1.5%Precisionand400-mVReference
1
1Features
1
•(ForV
S
=3.3V±10%,TypicalUnlessOtherwise
Noted)
•UndervoltageandOvervoltageDetection
•HighAccuracyVoltageReference:400mV
•ThresholdAccuracy:±1.5%(Maximum)
•WideSupplyVoltageRange2.2Vto5.5V
•InputandOutputVoltageRangeAboveV+
•InternalHysteresis:6mV
•PropagationDelay:2.6µsto5.6µs
•SupplyCurrent7.7µAPerChannel
•24-LeadWQFNPackage
•TemperatureRange:–40°Cto+125°C
2Applications
•PowerSupplyVoltageMonitoring
•BatteryMonitoring
•HandheldInstruments
•RelayDriving
•IndustrialControlSystems
3Description
TheLMV7231deviceisa1.5%accurateHex
WindowComparatorwhichcanbeusedtomonitor
powersupplyvoltagesoranyotheranalogoutput,
suchasananalogtemperaturesensororcurrent-
senseamplifier.Thedeviceusesaninternal400-mV
referenceforthecomparatortripvalue.The
comparatorsetpointscanbesetthroughexternal
resistordividers.TheLMV7231has6outputs(CO1
toCO6)thatsignalanundervoltageorovervoltage
eventforeachpowersupplyinput.Anoutput(AO)is
alsoprovidedtosignalwhenanyofthepowersupply
inputshaveanovervoltageorundervoltageevent.
Thisabilitytosignalanundervoltageorovervoltage
eventfortheindividualpowersupplyinputs,in
additiontoanoutputtosignalsuchaneventonany
ofthepowersupplyinputs,addsunparalleledsystem
protectioncapability.
The2.2-Vto5.5-Vpowersupplyvoltagerange,low
supplycurrent,andinputoroutputvoltagerange
aboveV+maketheLMV7231idealforawiderange
ofpowersupplymonitoringapplications.Operationis
ensuredoverthe–40°Cto+125°Ctemperature
range.Thedeviceisavailableina24-pinWQFN
package.
DeviceInformation
(1)
PARTNUMBERPACKAGEBODYSIZE(NOM)
LMV7231WQFN(24)4.00mm×4.00mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
SimplifiedTypicalApplication
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LMV7231 |
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