continuedxjizz.com

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,intellectualpropertymattersandotherimportantdisclaimers.
PRODUCTIONDATA.
LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016LMP860x,LMP860x-Q160-V,Bidirectional,Low-orHigh-Side,Voltage-Output,Current-SensingAmplifiers11Features1Gain=20xforLMP8601andLMP8601-Q1Gain=50xforLMP8602andLMP8602-Q1Gain=100xforLMP8603andLMP8603-Q1TCVOS:10μV/°CMaximumCMRR:90-dBMinimumInputOffsetVoltage:1-mVMaximumCMVRatVS=3.
3V:–4Vto27VCMVRatVS=5V:–22Vto60VSingle-SupplyBidirectionalOperationAllMinimumandMaximumLimits100%TestedQ1DevicesQualifiedforAutomotiveApplicationsQ1DevicesACE-Q100QualifiedWiththeFollowingResults:–DeviceTemperatureGrade1:–40°Cto125°CAmbientOperatingTemperatureRange–DeviceTemperatureGrade0:–40°Cto150°C(LMP8601EDRQ1Only)–DeviceHBMESDClassificationLevel2(3Aoninputs)–DeviceCDMESDClassificationLevelC6–DeviceMMESDClassificationLevelM22ApplicationsHigh-SideandLow-SideDriverConfigurationCurrentSensingBidirectionalCurrentMeasurementCurrentLooptoVoltageConversionAutomotiveFuelInjectionControlTransmissionControlPowerSteeringBatteryManagementSystems3DescriptionTheLMP8601,LMP8602,LMP8603(LMP860x)andLMP8601-Q1,LMP8602-Q1,LMP8603-Q1(LMP860x-Q1)devicesarefixed-gain,precisioncurrent-senseamplifiers(alsoreferredtoascurrent-shuntmonitors).
Theinputcommon-modevoltagerangeis–22Vto+60Vwhenoperatingfromasingle5-Vsupply,or–4Vto+27Vwitha3.
3-Vsupply.
TheLMP860xandLMP860x-Q1areidealpartsforunidirectionalandbidirectionalcurrentsensingapplications.
Thesedeviceshaveaprecisegainof20x(LPM8601,LPM8601-Q1),50x(LPM8602,LPM8602-Q1),and100x(LPM8603,LPM8603-Q1),andareadequateinmosttargetedapplicationstodriveanADCtofull-scalevalue.
Thefixedgainisachievedintwoseparatestages:apreamplifierwithagainof10xandanoutputstagebufferamplifierwithagainof2x(LMP8601,LMP8601-Q1),5x(LMP8602,LMP8602-Q1),or10x(LMP8603,LMP8603-Q1).
Thepathbetweenthetwostagesisbroughtoutontwopinstoenabletheoptionofanadditionalfilternetworkormodifyingthegain.
Theoffsetinputpinenablesthesedevicesforunidirectionalorbidirectionalsinglesupplyvoltagecurrentsensing.
TheLMP860x-Q1devicesincorporateenhancedmanufacturingandsupportprocessesfortheautomotivemarketandarecompliantwiththeAEC-Q100standard.
DeviceInformation(1)PARTNUMBERPACKAGEBODYSIZE(NOM)LMP860xSOIC(8)4.
90mmx3.
91mmLMP860x-Q1LMP8602,LMP8603VSSOP(8)3.
00mm*3.
00mmLMP8602-Q1,LMP8603-Q1(1)Forallavailablepackages,seethepackageoptionaddendumattheendofthedatasheet.
TypicalApplications2LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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comProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporatedTableofContents1Features.
12Applications13Description14RevisionHistory.
25PinConfigurationandFunctions.
36Specifications.
46.
1AbsoluteMaximumRatings46.
2ESDRatings:LMP860x46.
3ESDRatings:LMP860x-Q146.
4RecommendedOperatingConditions.
46.
5ThermalInformation.
56.
6ElectricalCharacteristics:VS=3.
3V.
56.
7ElectricalCharacteristics:VS=5V.
76.
8TypicalCharacteristics.
97DetailedDescription187.
1Overview187.
2FunctionalBlockDiagram187.
3FeatureDescription.
197.
4DeviceFunctionalModes.
228ApplicationandImplementation268.
1ApplicationInformation.
268.
2TypicalApplications269PowerSupplyRecommendations.
3110Layout.
3110.
1LayoutGuidelines3110.
2LayoutExample3111DeviceandDocumentationSupport3211.
1DeviceSupport.
3211.
2RelatedLinks3211.
3CommunityResources.
3211.
4Trademarks.
3211.
5ElectrostaticDischargeCaution.
3211.
6Glossary.
3212Mechanical,Packaging,andOrderableInformation324RevisionHistoryNOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion.
ChangesfromRevisionG(July2015)toRevisionHPageAddednewtemperaturegrade0versionofLMP8601-Q1.
1AddedLMP8602,LMP8602-Q1,LMP8603,andLMP8603-Q1devicesandrelatedinformationtodatasheet1ChangedFeaturesbullets1ChangedtextinDescriptionsection.
1AddednewvaluestoThermalInformationtable.
5ChangedRθJAvalueinThermalInformationtable.
5DeletedpreviousNote1fromElectricalCharacteristicstables.
5ChangedallAV1toK1throughoutdatasheetforconsistency.
6ChangedallAV2toK2throughoutdatasheetforconsistency.
6DeletedpreviousNote1fromElectricalCharacteristicstables.
7DeletedRelatedDocumentationsection;SNOSB36datasheetcontentnowcombinedwiththisdatasheet32ChangesfromRevisionF(January2014)toRevisionGPageAddedESDRatingstable,andPinConfigurationandFunctions,FeatureDescription,DeviceFunctionalModes,ApplicationandImplementation,PowerSupplyRecommendations,Layout,DeviceandDocumentationSupport,andMechanical,Packaging,andOrderableInformationsections.
1ChangesfromRevisionE(March2013)toRevisionFPageAddedfourtypicalcurves17ChangesfromRevisionD(October2009)toRevisionEPageChangedlayoutofNationalDataSheettoTIformat303LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
ti.
comSNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016ProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporated5PinConfigurationandFunctionsDPackage8-PinSOICTopViewDGKPackage8-PinVSSOPTopViewPinDescriptionsPINTYPEDESCRIPTIONNAMENO.
A13OPreamplifieroutputA24IInputfromtheexternalfilternetworkand,orA1GND2PPowerground+IN8IPositiveinput-IN1INegativeinputOFFSET7IDCoffsetforbidirectionalsignalsOUT5OSingle-endedoutputVS6PPositivesupplyvoltage4LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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comProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporated(1)StressesbeyondthoselistedunderAbsoluteMaximumRatingsmaycausepermanentdamagetothedevice.
Thesearestressratingsonly,whichdonotimplyfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderRecommendedOperatingConditions.
Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
(2)ThemaximumpowerdissipationmustbederatedatelevatedtemperaturesandisdictatedbyTJ(MAX),RθJA,andtheambienttemperature,TA.
ThemaximumallowablepowerdissipationPDMAX=(TJ(MAX)–TA)/RθJAorthenumbergiveninAbsoluteMaximumRatings,whicheverislower.
6Specifications6.
1AbsoluteMaximumRatingsoveroperatingfree-airtemperaturerange(unlessotherwisenoted)(1)MINMAXUNITSupplyvoltage(VS–GND)–0.
36VContinuousinputvoltage(–INand+IN)–2260VTransient(400ms)–2565VMaximumvoltageatA1,A2,OFFSETandOUTpinsVS+0.
3GND–0.
3VOperatingtemperature,TALMP8601EDRQ1only–40150°CAllotherdevices–40125Junctiontemperature(2)–40150°CMountingtemperatureInfraredorconvection(20sec)235°CWavesolderinglead(10sec)260Storagetemperature,Tstg–65150°C(1)JEDECdocumentJEP155statesthat500-VHBMallowssafemanufacturingwithastandardESDcontrolprocess.
(2)JEDECdocumentJEP157statesthat250-VCDMallowssafemanufacturingwithastandardESDcontrolprocess.
6.
2ESDRatings:LMP860xVALUEUNITV(ESD)ElectrostaticdischargeHumanbodymodel(HBM),perANSI/ESDA/JEDECJS-001(1)Allpinsexcept1and8±2000VPins1and8±4000Charged-devicemodel(CDM),perJEDECspecificationJESD22-C101(2)±1000Machinemodel±200(1)AECQ100-002indicatesthatHBMstressingshallbeinaccordancewiththeANSI/ESDA/JEDECJS-001specification.
6.
3ESDRatings:LMP860x-Q1VALUEUNITV(ESD)ElectrostaticdischargeHumanbodymodel(HBM),perAECQ100-002(1)Allpinsexcept1and8±2000VPins1and8±4000Charged-devicemodel(CDM),perAECQ100-011±1000Machinemodel±200(1)ThemaximumpowerdissipationmustbederatedatelevatedtemperaturesandisdictatedbyTJ(MAX),RθJA,andtheambienttemperature,TA.
ThemaximumallowablepowerdissipationPDMAX=(TJ(MAX)–TA)/RθJAorthenumbergiveninAbsoluteMaximumRatings,whicheverislower.
6.
4RecommendedOperatingConditionsoveroperatingfree-airtemperaturerange(unlessotherwisenoted)MINMAXUNITSupplyvoltage(VS–GND)35.
5VOFFSETvoltage(Pin7)0VSVOperatingtemperature,TA(1)LMP8601EDRQ1only–40150°CAllotherdevices–401255LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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comSNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016ProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporated(1)Formoreinformationabouttraditionalandnewthermalmetrics,seetheSemiconductorandICPackageThermalMetricsapplicationreport,SPRA953.
(2)ThemaximumpowerdissipationmustbederatedatelevatedtemperaturesandisdictatedbyTJ(MAX),RθJA,andtheambienttemperature,TA.
ThemaximumallowablepowerdissipationPDMAX=(TJ(MAX)–TA)/RθJAorthenumbergiveninAbsoluteMaximumRatings,whicheverislower.
6.
5ThermalInformationTHERMALMETRIC(1)LMP860x,LMP860x-Q1LMP8602,LMP8602-Q1,LMP8603,LMP8603-Q1UNITD(SOIC)DGK(VSSOP)8PINS8PINSRθJAJunction-to-ambientthermalresistance(2)113.
1171.
1°C/WRθJC(top)Junction-to-case(top)thermalresistance57.
364.
1°C/WRθJBJunction-to-boardthermalresistance53.
591.
1°C/WψJTJunction-to-topcharacterizationparameter11.
19.
4°C/WψJBJunction-to-boardcharacterizationparameter53.
089.
7°C/WRθJC(bot)Junction-to-case(bottom)thermalresistanceN/AN/A°C/W(1)Datasheetminandmaxlimitsarespecifiedbytest.
(2)TypicalvaluesrepresentthemostlikelyparameternormsatTA=25°C,andattheRecommendedOperationConditionsatthetimeofproductcharacterization.
(3)BoththegainofpreamplifierK1andthegainofbufferamplifierK2aremeasuredindividually.
Theoverallgainofbothamplifiers(AV)isalsomeasuredtoassurethegainofallpartsisalwayswithintheAVlimits.
(4)Slewrateistheaverageoftherisingandfallingslewrates.
(5)OffsetvoltagedriftdeterminedbydividingthechangeinVOSattemperatureextremesintothetotaltemperaturechange.
6.
6ElectricalCharacteristics:VS=3.
3VatTA=25°C,VS=3.
3V,GND=0V,–4V≤VCM≤27V,RL=∞,OFFSET(pin7)isgrounded,and10nFbetweenVSandGND(unlessotherwisenoted)PARAMETERTESTCONDITIONSMIN(1)TYP(2)MAX(1)UNITOVERALLPERFORMANCE(FROM-IN(PIN1)AND+IN(PIN8)TOOUT(PIN5)WITHPINSA1(PIN3)ANDA2(PIN4)CONNECTED)ISSupplycurrent1mAOverfulltemperaturerange0.
61.
3AVTotalgainLMP8601,LMP8601-Q119.
92020.
1V/VLMP8602,LMP8602-Q149.
755050.
25LMP8603,LMP8603-Q199.
5100100.
5GainDrift(3)Overfulltemperaturerange–2.
7±20ppm/°CSRSlewrate(4)VIN=±0.
165V0.
40.
7V/μsBWBandwidth5060kHzVOSInputoffsetvoltageVCM=VS/20.
15±1mVTCVOSInputoffsetvoltagedrift(5)Overfulltemperaturerange2±10μV/°CenInput-referredvoltagenoise0.
1Hz-10Hz,6sigma16.
4μVP-PSpectraldensity,1kHz830nV/√HzPSRRPower-supplyrejectionratio3.
0V≤VS≤3.
6V,DC,VCM=VS/286dBOverfulltemperaturerange70MidscaleoffsetscalingaccuracyLMP8601,LMP8601-Q1±0.
15%±0.
5%Inputreferred±0.
413mVLMP8602,LMP8602-Q1±0.
25%±1%Inputreferred±0.
33mVLMP8603,LMP8603-Q1±0.
45%±1.
5%Inputreferred±0.
248mV6LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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comProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporatedElectricalCharacteristics:VS=3.
3V(continued)atTA=25°C,VS=3.
3V,GND=0V,–4V≤VCM≤27V,RL=∞,OFFSET(pin7)isgrounded,and10nFbetweenVSandGND(unlessotherwisenoted)PARAMETERTESTCONDITIONSMIN(1)TYP(2)MAX(1)UNIT(6)ACcommon-modesignalisa5-VPPsine-wave(0Vto5V)atthegivenfrequency.
(7)Positivecurrentcorrespondstocurrentflowingintothedevice.
(8)ForthistestinputisdrivenfromA1stage.
(9)ForVOL,RLisconnectedtoVSandforVOH,RLisconnectedtoGND.
(10)Short-Circuittestisamomentarytest.
Continuousshortcircuitoperationatelevatedambienttemperaturecanresultinexceedingthemaximumallowedjunctiontemperatureof150°C.
PREAMPLIFIER(FROMINPUTPINS-IN,(PIN1)AND+IN(PIN8)TOA1(PIN3))RCMInputimpedancecommonmode–4V≤VCM≤27V295kOverfulltemperaturerange250350RDMInputimpedancedifferentialmode–4V≤VCM≤27V590kOverfulltemperaturerange500700VOSInputoffsetvoltageVCM=VS/2±0.
15±1mVDCCMRRDCcommon-moderejectionratio–2V≤VCM≤24V96dBOverfulltemperaturerange86ACCMRRACcommon-moderejectionratio(6)f=1kHz8094dBf=10kHz85CMVRInputcommon-modevoltagerangefor80-dBCMRROverfulltemperaturerange–427VK1Preamplifiergain(3)9.
9510.
010.
05V/VRF-INTOutputimpedancefilterresistor100k–40°C≤TA≤125°C99101–40°C≤TA≤150°C,LMP8601EDRQ1only97103TCRF-INTOutputimpedancefilterresistordriftOverfulltemperaturerange±5±50ppm/°CA1VOUTA1outputvoltageswingVOL,RL=∞2mVOverfulltemperaturerange10VOH,RL=∞3.
25VOverfulltemperaturerange3.
2OUTPUTBUFFER(FROMA2(PIN4)TOOUT(PIN5))VOSInputoffsetvoltage0V≤VCM≤VS–2±0.
52mVOverfulltemperaturerange–2.
52.
5K2Outputbuffergain(3)LMP8601,LMP8601-Q11.
9922.
01V/VLMP8602,LMP8602-Q14.
97555.
025LMP8603,LMP8603-Q19.
951010.
05IBInputbiascurrentofA2(7),–40fAOverfulltemperaturerange±20nAA2VOUTA2outputvoltageswing(8)(9)VOL,RL=100kLMP8601,LMP8601-Q1,4mVOverfulltemperaturerange20LMP8602,LMP8602-Q110Overfulltemperaturerange40LMP8603,LMP8603-Q110Overfulltemperaturerange80VOH,RL=100k3.
29VOverfulltemperaturerange3.
28ISCOutputshort-circuitcurrent(10)Sourcing,VIN=VS,VOUT=GND–25–38–60mASinking,VIN=GND,VOUT=VS3046657LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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comSNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016ProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporated(1)Datasheetminandmaxlimitsarespecifiedbytest.
(2)TypicalvaluesrepresentthemostlikelyparameternormsatTA=25°C,andattheRecommendedOperationConditionsatthetimeofproductcharacterization.
(3)BoththegainofpreamplifierK1andthegainofbufferamplifierK2aremeasuredindividually.
Theoverallgainofbothamplifiers(AV)isalsomeasuredtoassurethegainofallpartsisalwayswithintheAVlimits.
(4)Slewrateistheaverageoftherisingandfallingslewrates.
(5)OffsetvoltagedriftdeterminedbydividingthechangeinVOSattemperatureextremesintothetotaltemperaturechange.
6.
7ElectricalCharacteristics:VS=5VatTA=25°C,VS=5V,GND=0V,–22V≤VCM≤60V,RL=∞,OFFSET(pin7)isgrounded,and10nFbetweenVSandGND(unlessotherwisenoted)PARAMETERTESTCONDITIONSMIN(1)TYP(2)MAX(1)UNITOVERALLPERFORMANCE(FROM-IN(PIN1)AND+IN(PIN8)TOOUT(PIN5)WITHPINSA1(PIN3)ANDA2(PIN4)CONNECTED)ISSupplycurrent1.
1mAOverfulltemperaturerange0.
71.
5AVTotalgain(3)LMP8601,LMP8601-Q119.
92020.
1V/VLMP8602,LMP8602-Q149.
755050.
25LMP8603,LMP8603-Q199.
5100100.
5Gaindrift–40°C≤TA≤125°C–2.
8±20ppm/°CSRSlewrate(4)VIN=±0.
25V0.
60.
83V/μsBWBandwidth5060kHzVOSInputoffsetvoltage0.
15±1mVTCVOSInputoffsetvoltagedrift(5)–40°C≤TA≤125°C2±10μV/°CeNInput-referredvoltagenoise0.
1Hz-10Hz,6sigma17.
5μVP-PSpectraldensity,1kHz890nV/√HzPSRRPower-supplyrejectionratio4.
5V≤VS≤5.
5V,DC90dBOverfulltemperaturerange70MidscaleoffsetscalingaccuracyLMP8601,LMP8601-Q1±0.
15%±0.
5%Input-referred±0.
625mVLMP8602,LMP8602-Q1±0.
25%±1%Input-referred±0.
50mVLMP8603,LMP8603-Q1±0.
45%±1.
5%Input-referred±0.
375mV8LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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comProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporatedElectricalCharacteristics:VS=5V(continued)atTA=25°C,VS=5V,GND=0V,–22V≤VCM≤60V,RL=∞,OFFSET(pin7)isgrounded,and10nFbetweenVSandGND(unlessotherwisenoted)PARAMETERTESTCONDITIONSMIN(1)TYP(2)MAX(1)UNIT(6)ACcommon-modesignalisa5-VPPsine-wave(0Vto5V)atthegivenfrequency.
(7)Positivecurrentcorrespondstocurrentflowingintothedevice.
(8)ForthistestinputisdrivenfromA1stage.
(9)ForVOL,RLisconnectedtoVSandforVOH,RLisconnectedtoGND.
(10)Short-Circuittestisamomentarytest.
Continuousshortcircuitoperationatelevatedambienttemperaturecanresultinexceedingthemaximumallowedjunctiontemperatureof150°C.
PREAMPLIFIER(FROMINPUTPINS-IN(PIN1)AND+IN(PIN8)TOA1(PIN3))RCMInputimpedance,commonmode0V≤VCM≤60V295kOverfulltemperaturerange250350–20V≤VCM≤0V193kOverfulltemperaturerange165250RDMInputimpedance,differentialmode0V≤VCM≤60V590kOverfulltemperaturerange500700–20V≤VCM≤0V386kOverfulltemperaturerange300500VOSInputoffsetvoltageVCM=VS/2±0.
15±1mVDCCMRRDCcommon-moderejectionratio–20V≤VCM≤60V105dBOverfulltemperaturerange90ACCMRRACcommon-moderejectionratio(6)f=1kHz8096dBf=10kHz83CMVRInputcommon-modevoltagerangefor80-dBCMRROverfulltemperaturerange–2260VK1Preamplifiergain(3)9.
951010.
05V/VRF-INTOutputimpedancefilterresistor100k–40°C≤TA≤125°C,99101–40°C≤TA≤150°C,LMP8601EDRQ1only97103TCRF-INTOutputimpedancefilterresistordrift±5±50ppm/°CA1VOUTA1outputvoltageswingVOL,RL=∞2mVOverfulltemperaturerange10VOH,RL=∞4.
985VOverfulltemperaturerange4.
95OUTPUTBUFFER(FROMA2(PIN4)TOOUT(PIN5))VOSInputoffsetvoltage0V≤VCM≤VS–2±0.
52mVOverfulltemperaturerange–2.
52.
5K2Outputbuffergain(3)LMP8601,LMP8601-Q11.
9922.
01V/VLMP8602,LMP8602-Q14.
97555.
025LMP8603,LMP8603-Q19.
951010.
05IBInputbiascurrentofA2(7)–40fAOverfulltemperaturerange±20nAA2VOUTA2outputvoltageswing(8)(9)VOL,RL=∞LMP8601,LMP8601-Q1,4mVOverfulltemperaturerange20LMP8602,LMP8602-Q110Overfulltemperaturerange40LMP8602,LMP8603-Q110Overfulltemperaturerange80VOH,RL=∞4.
99VOverfulltemperaturerange4.
98ISCOutputshort-circuitcurrent(10)Sourcing,VIN=VS,VOUT=GND–25–42–60mASinking,VIN=GND,VOUT=VS3048659LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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comSNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016ProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporated6.
8TypicalCharacteristicsatTA=25°C,VS=5V,GND=0V,–22≤VCM≤60V,RL=∞,OFFSET(pin7)connectedtoVS,and10nFbetweenVSandGND(unlessotherwisenoted)Figure1.
VOSvsVCMatVS=3.
3VFigure2.
VOSvsVCMatVS=5VFigure3.
InputBiasCurrentOverTemperature(+INand–INpins)atVS=3.
3VFigure4.
InputBiasCurrentOverTemperature(+INand–INpins)atVS=5VFigure5.
InputBiasCurrentOverTemperature(A2pin)atVS=5VFigure6.
InputBiasCurrentOverTemperature(A2pin)atVS=5V10LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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comProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporatedTypicalCharacteristics(continued)atTA=25°C,VS=5V,GND=0V,–22≤VCM≤60V,RL=∞,OFFSET(pin7)connectedtoVS,and10nFbetweenVSandGND(unlessotherwisenoted)Figure7.
Input-ReferredVoltageNoisevsFrequencyFigure8.
PSRRvsFrequencyFigure9.
GainvsFrequencyatVS=3.
3VFigure10.
GainvsFrequencyatVS=5VFigure11.
CMRRvsFrequencyatVS=3.
3VFigure12.
CMRRvsFrequencyatVS=5V11LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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comSNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016ProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporatedTypicalCharacteristics(continued)atTA=25°C,VS=5V,GND=0V,–22≤VCM≤60V,RL=∞,OFFSET(pin7)connectedtoVS,and10nFbetweenVSandGND(unlessotherwisenoted)Figure13.
StepResponseatVS=3.
3VLMP8601andLMP8601-Q1Figure14.
StepResponseatVS=5VLMP8601andLMP8601-Q1Figure15.
SettlingTime(FallingEdge)atVS=3.
3VLMP8601andLMP8601-Q1Figure16.
SettlingTime(FallingEdge)atVS=5VLMP8601andLMP8601-Q1Figure17.
SettlingTime(RisingEdge)atVS=3.
3VLMP8601andLMP8601-Q1Figure18.
SettlingTime(RisingEdge)atVS=5VLMP8601andLMP8601-Q112LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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comProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporatedTypicalCharacteristics(continued)atTA=25°C,VS=5V,GND=0V,–22≤VCM≤60V,RL=∞,OFFSET(pin7)connectedtoVS,and10nFbetweenVSandGND(unlessotherwisenoted)Figure19.
StepResponseatVS=3.
3V,RL=10kLMP8602andLMP8602-Q1Figure20.
StepResponseatVS=5V,RL=10kLMP8602andLMP8602-Q1Figure21.
SettlingTime(FallingEdge)atVS=3.
3VLMP8602andLMP8602-Q1Figure22.
SettlingTime(FallingEdge)atVS=5VLMP8602andLMP8602-Q1Figure23.
SettlingTime(RisingEdge)atVS=3.
3VLMP8602andLMP8602-Q1Figure24.
SettlingTime(RisingEdge)atVS=5VLMP8602andLMP8602-Q113LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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StepResponseatVS=3.
3V,RL=10kLMP8603andLMP8603-Q1Figure26.
StepResponseatVS=5V,RL=10kLMP8603andLMP8603-Q1Figure27.
SettlingTime(FallingEdge)atVS=3.
3VLMP8603andLMP8603-Q1Figure28.
SettlingTime(FallingEdge)atVS=5VLMP8603andLMP8603-Q1Figure29.
SettlingTime(RisingEdge)atVS=3.
3VLMP8603andLMP8603-Q1Figure30.
SettlingTime(RisingEdge)atVS=5VLMP8603andLMP8603-Q114LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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PositiveSwingvsRLOADatVS=3.
3VFigure32.
NegativeSwingvsRLOADatVS=3.
3VFigure33.
PositiveSwingvsRLOADVS=5VFigure34.
NegativeSwingvsRLOADatVS=5VFigure35.
VOSDistributionatVS=3.
3VFigure36.
VOSDistributionatVS=5V15LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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TCVOSDistributionFigure38.
GainDriftDistribution,1300PartsLMP8601andLMP8601-Q1Figure39.
GainDriftDistribution,5000PartsLMP8602andLMP8602-Q1Figure40.
GainDriftDistribution,5000PartsLMP8603andLMP8603-Q1Figure41.
GainErrorDistributionatVS=3.
3VLMP8601andLMP8601-Q1Figure42.
GainErrorDistributionatVS=5VLMP8601andLMP8601-Q116LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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GainErrorDistributionatVS=3.
3V,5000PartsLMP8602andLMP8602-Q1Figure44.
GainErrorDistributionatVS=5V,5000PartsLMP8602andLMP8602-Q1Figure45.
GainErrorDistributionatVS=3.
3V,5000PartsLMP8603andLMP8603-Q1Figure46.
GainErrorDistributionatVS=5VLMP8603andLMP8603-Q1Figure47.
CMRRDistributionatVS=3.
3VFigure48.
CMRRDistributionatVS=5V17LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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OutputVoltagevsVINFigure50.
OutputVoltagevsVIN(EnlargedCloseto0V)Figure51.
OutputVoltagevsVINFigure52.
OutputVoltagevsVIN(EnlargedCloseto0V)18LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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1OverviewTheLMP860xandLMP860x-Q1arefixedgaindifferentialvoltageprecisionamplifiers,witha–22-Vto+60-Vinputcommon-modevoltagerangewhenoperatingfromasingle5-Vsupply,ora–4-Vto+27-Vinputcommon-modevoltagerangewhenoperatingfromasingle3.
3-Vsupply.
TheLMP8601andLMP8601-Q1haveagainof20x,theLMP8602andLMP8602-Q1haveagainof50x,andtheLMP8603andLMP8603-Q1haveagainof100x.
TheLMP860xandLMP860x-Q1aremembersoftheLMPfamilyandareidealpartsforunidirectionalandbidirectionalcurrentsensingapplications.
Becauseoftheproprietarychoppinglevel-shiftinputstage,theLMP860xandLMP860x-Q1achieveverylowoffset,verylowthermaloffsetdrift,andveryhighCMRR.
TheLMP860xandLMP860x-Q1amplifyandfiltersmalldifferentialsignalsinthepresenceofhighcommon-modevoltages.
TheLMP860xandLMP860x-Q1uselevelshiftresistorsattheinputs.
Becauseoftheseresistors,theLMP860xandLMP860x-Q1caneasilywithstandverylargedifferentialinputvoltagesthatmayexistinfaultconditionswheresomeotherlessprotectedhigh-performancecurrentsenseamplifiersmightsustainpermanentdamage.
7.
1.
1TheoryofOperationTheschematicshownintheFunctionalBlockDiagramgivesabasicrepresentationoftheinternaloperationoftheLMP860xandLMP860x-Q1.
Thesignalontheinputpinsistypicallyasmalldifferentialvoltagedevelopedacrossacurrentsensingshuntresistor.
Theinputsignalmayalsoappearatahighcommon-modevoltage.
Theinputsignalsareaccessedthroughtwoinputresistorsthatchangethevoltageintoacurrent.
Theproprietarychoppinglevel-shiftcurrentcircuitpullsorpushescurrentthroughtheinputresistorstobringthecommon-modevoltagebehindtheseresistorswithinthesupplyrails.
Subsequently,thesignalisgainedupbyafactorof10andbroughtoutontheA1pinthroughatrimmed100-kresistor.
Intheapplication,additionalgainadjustmentorfilteringcomponentscanbeaddedbetweentheA1andA2pinsasexplainedinsubsequentsections.
ThesignalontheA2pinisfurtheramplifiedbyafactorof2(LMP8601andLMP8601-Q1),5(LMP8602,LMP8602-Q1),or10(LMP8603,LMP8603-Q1),andbroughtoutontheOUTpin.
7.
2FunctionalBlockDiagramNOTE:K2=2forLMP8601,LMP8601-Q1;5forLMP8602,LMP8602-Q1;or10forLMP8603,LMP8603-Q1.
19LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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comSNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016ProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporated(1)TheOFFSETpinmustbedrivenfromaverylow-impedancesource(1x,thedesignprocedurecanbeverysimpleifthetwocapacitorsarechosentoinacertainratio.
(6)InsertingthisinEquation4forQresultsin:(7)Whichresultsin:(8)Inthiscase,giventhepredeterminedvalueofR1=100k(theinternalresistor),thequalityfactorissetsolelybythevalueoftheresistorR2.
R2canbecalculatedbasedonthedesiredvalueofQasthefirststepofthedesignprocedurewiththefollowingequation:(9)Forthegainof2fortheLMP8601andLMP8601-Q1,theresultis:(10)Forthegainof5fortheLMP8602andLMP8602-Q1,theresultis:(11)Forthegainof10fortheLMP8603andLMP8603-Q1,theresultis:(12)22LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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5√2tocreateaButterworthresponse,to1/√3tocreateaBesselresponse,ora0.
5tocreateacriticallydampedresponse.
AfterthevalueofR2hasbeenfound,thesecondandlaststepofthedesignprocedureistocalculatetherequiredvalueofCtogivethedesiredlow-passcut-offfrequencyusing:(13)Forthegain=2,theresultis:(14)Thegain=5resultsin:(15)Thegain=10gives:(16)ForC2thevalueiscalculatedwith:(17)Foragain=2:C2=C1(18)Orforagain=5:(19)Andforagain=10:(20)Notethatthefrequencyresponseachievedusingthisprocedureisonlyaccurateifthecut-offfrequencyofthesecond-orderfilterismuchsmallerthantheintrinsic60-kHz,low-passfilter.
Inotherwords,choosethefrequencyresponseoftheLMP860xorLMP860x-Q1circuitsothattheinternalpolesdonotaffecttheexternalsecond-orderfilter.
7.
4DeviceFunctionalModes7.
4.
1GainAdjustmentThegainoftheLMP860xandLMP860x-Q1isfixed;however,theoverallgainmaybeadjustedasthesignalpathbetweenthetwointernalamplifiersisavailableontheA1andA2pins.
23LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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4.
1.
1ReducingGainFigure54showstheconfigurationthatcanbeusedtoreducethegainoftheLMP8601andLMP8601-Q1.
NOTE:K2=2forLMP8601,LMP8601-Q1;5forLMP8602,LMP8602-Q1;or10forLMP8603,LMP8603-Q1.
Figure54.
ReduceGainRrcreatesaresistivedividertogetherwiththeinternal100-kresistorsuchthatthereducedgainGrbecomes:(21)FortheLMP8602andLMP8602-Q1:(22)AndfortheLMP8603andLMP8603-Q1:(23)GivenadesiredvalueofthereducedgainGr,usingthisequation,theLMP8601andLMP8601-Q1requiredvaluefortheRriscalculatedwith:(24)FortheLMP8602andLMP8602-Q1:(25)AndfortheLMP8603andLMP8603-Q1:(26)7.
4.
1.
2IncreasingGainFigure55showstheconfigurationthatcanbeusedtoincreasethegainoftheLMP8601andLMP8601-Q1.
24LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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Figure55.
IncreaseGainRicreatespositivefeedbackfromtheoutputpintotheinputofthebufferamplifier.
Thepositivefeedbackincreasesthegain.
TheincreasedgainGifortheLMP8601andLMP8601-Q1becomes:(27)FortheLMP8602andLMP8602-Q1:(28)AndfortheLMP8603andLMP8603-Q1:(29)Fromthisequation,foradesiredvalueofthegain,theLMP8601andLMP8601-Q1requiredvalueofRiiscalculatedwith:(30)FortheLMP8602andLMP8602-Q1:(31)AndfortheLMP8603with:(32)NotethatfromtheequationforthegainGi,forlargegains,Riapproaches100k.
Inthiscase,thedenominatorintheequationbecomesclosetozero.
Inpractice,forlargegains,thedenominatorisdeterminedbytolerancesinthevalueoftheexternalresistorRiandtheinternal100-kresistor.
Inthiscase,thegainbecomesveryinaccurate.
Ifthedenominatorbecomesequaltozero,thesystembecomesunstable.
TIrecommendstolimittheapplicationofthistechniquetogainvaluesof50orsmaller.
25LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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4.
2DrivingSwitchedCapacitiveLoadsSomeADCsloadtheirsignalsourcewithasampleandholdcapacitor.
Thecapacitormaybedischargedpriortobeingconnectedtothesignalsource.
IftheLMP860xandLMP860x-Q1aredrivingsuchADCs,thesuddencurrentthatshouldbedeliveredwhenthesamplingoccursmaydisturbtheoutputsignal.
ThiseffectwassimulatedwiththecircuitshowninFigure56wheretheoutputistoacapacitorthatisdrivenbyarail-to-railsquarewave.
Figure56.
DrivingSwitchedCapacitiveLoadThiscircuitsimulatestheswitchedconnectionofadischargedcapacitortotheLMP860xandLMP860x-Q1output.
TheresultingVOUTdisturbancesignalsareshowninFigure57andFigure58.
Figure57.
CapacitiveLoadResponseat3.
3VFigure58.
CapacitiveLoadResponseat5.
0VThesefigurescanbeusedtoestimatethedisturbancethatwillbecausedwhendrivingaswitchedcapacitiveload.
TominimizetheerrorsignalintroducedbythesamplingthatoccursontheADCinput,placeanadditionalRCfilterbetweentheLMP860xorLMP860x-Q1andtheADC,asillustratedinFigure59.
Figure59.
ReduceErrorWhenDrivingADCsTheexternalcapacitorabsorbsthechargethatflowswhentheADCsamplingcapacitorisconnected.
Theexternalcapacitorshouldbemuchlargerthanthesample-and-holdcapacitorattheinputoftheADC,andtheRCtimeconstantoftheexternalfiltershouldbesuchthatthespeedofthesystemisnotaffected.
26LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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TI'scustomersareresponsiblefordeterminingsuitabilityofcomponentsfortheirpurposes.
Customersshouldvalidateandtesttheirdesignimplementationtoconfirmsystemfunctionality.
8.
1ApplicationInformation8.
1.
1SpecifyingPerformanceTospecifythehighperformanceoftheLMP860xandLMP860x-Q1,allminimumandmaximumvaluesshownintheparametertablesofthisdatasheetare100%tested,andallovertemperaturelimitsarealso100%testedovertemperature.
8.
2TypicalApplications8.
2.
1High-Side,Current-SensingApplicationFigure60illustratestheapplicationoftheLMP860xandLMP860x-Q1inahigh-sidesensingapplication.
Thisapplicationissimilartothelow-sidesensingdiscussedbelow,exceptinthisapplicationthecommon-modevoltageontheshuntdropsbelowgroundwhenthedriverisswitchedoff.
Becausethecommon-modevoltagerangeoftheLMP860xandLMP860x-Q1extendsbelowthenegativerail,theLMP860xandLMP860x-Q1arealsoverywellsuitedforthisapplication.
NOTE:Forthisapplicationexample,K2=2.
Figure60.
High-Side,Current-SensingApplication27LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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2.
1.
1DesignRequirementsUsingthecircuitinFigure60,therequirementistomeasurecoilcurrentupto10AanddrivetheADCinputtoamaximumof3.
3V.
TheOFFSETpinisgrounded,sozerocurrentwillresultinazerovoltoutput.
8.
2.
1.
2DetailedDesignProcedureFirst,thevalueofRSENSEmustbedetermined.
RSENSEcanbefoundbydividingthemaximumdesiredoutputswingbythegaintodeterminethemaximuminputvoltage.
Inthisexample,theLMP8601isused,withagainof20V/V,asshowninEquation33:(33)Knowing165mVmustbegenerated,theidealvalueofthesenseresistorcanbedeterminedthroughsimpleohmslaw:(34)Theidealsenseresistorvalueis16.
5mΩ.
Thecloseststandardvalueis15mΩ,butthisvaluemaycausetheoutputtoslightlyoverrangeat10V.
Itisrecommendedtoreducetheexpectedmaximumoutputbyafewpercenttoallowforoverloadsandcomponenttolerances.
Thenextmostpopularvalueswouldbe10mΩ,15mΩ,and20mΩ.
10mΩallowsforamaximumoutputof2Vat10A,butmaybetoolowandnotusethefulloutputrange.
20mΩprovidesmoresensitivity,butlimitsthemaximumcurrentto8.
25A.
15mΩisagoodcompromiseat11Amaximum,andallowsforsomecomponenttolerancevariation.
Ifasuitablesenseresistorvalueisnotavailable,itispossibletoadjustthegainasdetailedintheGainAdjustmentsection.
Thesenseresistordoesdissipatespower,sothemaximumwattageratingandappropriatepowerderatingsmustbeobserved.
Intheexampleabove,thesenseresistordissipates0.
165V*10A=1.
65W,soasenseresistorofatleasttwicethemaximumexpectedpowershouldbeused(greaterthan4W).
8.
2.
1.
3ApplicationCurveBelowistheexpectedoutputvalueusinga15-mΩsenseresistor.
Figure61.
ExpectedOutputVoltagevsLoadCurrentUsing15-mΩSenseResistor28LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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2.
2Low-Side,Current-SensingApplicationFigure62illustratesalow-side,current-sensingapplicationwithalow-sidedriver.
Thepowertransistorispulsewidthmodulatedtocontroltheaveragecurrentflowingthroughtheinductiveloadwhichisconnectedtoarelativelyhighbatteryvoltage.
ThecurrentthroughtheloadismeasuredacrossashuntresistorRSENSEinserieswiththeload.
Whenthepowertransistorison,currentflowsfromthebatterythroughtheinductiveload,theshuntresistorandthepowertransistortoground.
Inthiscase,thecommon-modevoltageontheshuntisclosetoground.
Whenthepowertransistorisoff,currentflowsthroughtheinductiveload,throughtheshuntresistorandthroughthefreewheelingdiode.
Inthiscasethecommon-modevoltageontheshuntisatleastonediodevoltagedropabovethebatteryvoltage.
Therefore,inthisapplicationthecommon-modevoltageontheshuntisvaryingbetweenalargepositivevoltageandarelativelylowvoltage.
Becausethelargecommon-modevoltagerangeoftheLMP860xandLMP860x-Q1andbecauseofthehighaccommon-moderejectionratio,theLMP860xandLMP860x-Q1areverywellsuitedforthisapplication.
RSENSE=0.
01Ω,K2=2,VOUT=0.
2V/AFigure62.
Low-SideCurrent-SensingApplicationForthisapplication,thefollowingexamplecanbeusedforthecalculationofthesensevoltage(VSENSE):Whenusingasenseresistor,RSENSE,of0.
01Ωandacurrent,ILOAD,of1A,thesensevoltageattheinputpinsoftheLMP860xandLMP860x-Q1is:VSENSE=RSENSE*ILOAD=0.
01Ω*1A=0.
01V(35)Withthegainof20fortheLMP8601,theresultisanoutputof0.
2V.
Orinotherwords,VOUT=0.
2V/A.
TheresultisthesamefortheLMP8601-Q1.
FortheLMP8602andLMP8602-Q1withagainof50,theoutputis0.
5V/A.
FortheLMP8603andLMP8603-Q1withagainof100,theoutputis1V/A.
29LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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2.
3BatteryCurrentMonitorApplicationThisapplicationexampleshowshowtheLMP860xandLMP860x-Q1canbeusedtomonitorthecurrentflowinginandoutofabatterypack.
ThefactthattheLMP860xandLMP860x-Q1canmeasuresmallvoltagesatahighoffsetvoltageoutsidethepartsownsupplyrangemakesthispartaverygoodchoiceforsuchapplications.
Iftheloadcurrentofthebatteryishigherthenthechargingcurrent,theoutputvoltageoftheLMP860xandLMP860x-Q1willbeabovethehalfoffsetvoltageforanetcurrentflowingoutofthebattery.
Whenthechargingcurrentishigherthentheloadcurrenttheoutputwillbebelowthishalfoffsetvoltage.
NOTE:K2=2forLMP8601,LMP8601-Q1;5forLMP8602,LMP8602-Q1;or10forLMP8603,LMP8603-Q1.
Figure63.
BatteryCurrentMonitorApplication30LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
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2.
4AdvancedBatteryChargerApplicationFigure63canbeusedtorealizeanadvancedbatterychargerthathasthecapabilitytomonitortheexactnetcurrentthatflowsinandoutthebatteryasshowinFigure64.
TheoutputsignaloftheLMP860xandLMP860x-Q1isdigitizedwiththeADCandusedasaninputforthechargecontroller.
TheChargecontrollercanbeusedtoregulatethechargercircuittodeliverexactlythecurrentthatisrequiredbytheload,avoidingoverchargingafullyloadedbattery.
NOTE:K2=2forLMP8601,LMP8601-Q1;5forLMP8602,LMP8602-Q1;or10forLMP8603,LMP8603-Q1.
Figure64.
AdvancedBatteryChargerApplication8.
2.
5CurrentLoopReceiverApplicationManyindustrialapplicationsuse4-mAto20-mAtransmitterstosendananalogvalueofasensortoacentralcontrolroom.
TheLMP860xandLMP860x-Q1canbeusedasacurrentloopreceiverasshowninFigure65.
NOTE:K2=2forLMP8601,LMP8601-Q1;5forLMP8602,LMP8602-Q1;or10forLMP8603,LMP8603-Q1.
Figure65.
Current-LoopReceiverApplication31LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1www.
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1-μFbypasscapacitorbetweentheVSandGNDpins.
Placethiscapacitorascloseaspossibletothesupplypins.
Insomecases,anadditional10-μFbypasscapacitormayfurtherreducethesupplynoise.
10Layout10.
1LayoutGuidelinesThetracesleadingtoandfromthesenseresistorcanbesignificanterrorsources.
Withsmallvaluesenseresistors(<100mΩ),anytraceresistancesharedwiththeloadcurrentcancausesignificanterrors.
TheamplifierinputsshouldbedirectlyconnectedtothesenseresistorpadsusingKelvinor4-wireconnectiontechniques.
Thetracesshouldbeonecontinuouspieceofcopperfromthesenseresistorpadtotheamplifierinputpinpad,andideallyonthesamecopperlayerwithminimalviasorconnectors.
Thiscanbeimportantaroundthesenseresistorifitisgeneratinganysignificantheatgradients.
Tominimizenoisepickupandthermalerrors,theinputtracesshouldbetreatedasadifferentialsignalpairandroutedtightlytogetherwithadirectpathtotheinputpins.
Theinputtracesshouldberunawayfromnoisesources,suchasdigitallines,switchingsuppliesormotordrivelines.
Rememberthatthesetracescancontainhighvoltage,andshouldhavetheappropriatetraceroutingclearances.
Sincethesensetracesonlycarrytheamplifierbiascurrent,theconnectinginputtracescanbethinner,signalleveltraces.
ExcessiveResistanceinthetraceshouldalsobeavoided.
Thepathsofthetracesshouldbeidentical,includingconnectorsandvias,sothatanyerrorswillbeequalandcancel.
Thesenseresistorwillheatupastheloadincreases.
Astheresistorheatsup,theresistancegenerallygoesup,whichwillcauseachangeinthereadings.
Thesenseresistorshouldhaveasmuchheatsinkingaspossibletoremovethisheatthroughtheuseofheatsinksorlargecopperareascoupledtotheresistorpads.
Areadingdriftingovertimeafterturnoncanusuallybetracedbacktosenseresistorheating.
10.
2LayoutExampleFigure66.
Kelvinor4–wireConnectiontotheSenseResistor32LMP8601,LMP8601-Q1LMP8602,LMP8602-Q1LMP8603,LMP8603-Q1SNOSAR2H–SEPTEMBER2008–REVISEDAPRIL2016www.
ti.
comProductFolderLinks:LMP8601LMP8601-Q1LMP8602LMP8602-Q1LMP8603LMP8603-Q1SubmitDocumentationFeedbackCopyright2008–2016,TexasInstrumentsIncorporated11DeviceandDocumentationSupport11.
1DeviceSupport11.
1.
1DevelopmentSupportLMP8601TINASPICEModel,SNOM084TINA-TISPICE-BasedAnalogSimulationProgram,http://www.
ti.
com/tool/tina-ti11.
2RelatedLinksTable1listsquickaccesslinks.
Categoriesincludetechnicaldocuments,supportandcommunityresources,toolsandsoftware,andquickaccesstosampleorbuy.
Table1.
RelatedLinksPARTSPRODUCTFOLDERSAMPLE&BUYTECHNICALDOCUMENTSTOOLS&SOFTWARESUPPORT&COMMUNITYLMP8601ClickhereClickhereClickhereClickhereClickhereLMP8601-Q1ClickhereClickhereClickhereClickhereClickhereLMP8602ClickhereClickhereClickhereClickhereClickhereLMP8602-Q1ClickhereClickhereClickhereClickhereClickhereLMP8603ClickhereClickhereClickhereClickhereClickhereLMP8603-Q1ClickhereClickhereClickhereClickhereClickhere11.
3CommunityResourcesThefollowinglinksconnecttoTIcommunityresources.
Linkedcontentsareprovided"ASIS"bytherespectivecontributors.
TheydonotconstituteTIspecificationsanddonotnecessarilyreflectTI'sviews;seeTI'sTermsofUse.
TIE2EOnlineCommunityTI'sEngineer-to-Engineer(E2E)Community.
Createdtofostercollaborationamongengineers.
Ate2e.
ti.
com,youcanaskquestions,shareknowledge,exploreideasandhelpsolveproblemswithfellowengineers.
DesignSupportTI'sDesignSupportQuicklyfindhelpfulE2Eforumsalongwithdesignsupporttoolsandcontactinformationfortechnicalsupport.
11.
4TrademarksE2EisatrademarkofTexasInstruments.
Allothertrademarksarethepropertyoftheirrespectiveowners.
11.
5ElectrostaticDischargeCautionThesedeviceshavelimitedbuilt-inESDprotection.
TheleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoamduringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates.
11.
6GlossarySLYZ022—TIGlossary.
Thisglossarylistsandexplainsterms,acronyms,anddefinitions.
12Mechanical,Packaging,andOrderableInformationThefollowingpagesincludemechanical,packaging,andorderableinformation.
Thisinformationisthemostcurrentdataavailableforthedesignateddevices.
Thisdataissubjecttochangewithoutnoticeandrevisionofthisdocument.
Forbrowser-basedversionsofthisdatasheet,refertotheleft-handnavigation.
PACKAGEOPTIONADDENDUMwww.
ti.
com6-Feb-2020Addendum-Page1PACKAGINGINFORMATIONOrderableDeviceStatus(1)PackageTypePackageDrawingPinsPackageQtyEcoPlan(2)Lead/BallFinish(6)MSLPeakTemp(3)OpTemp(°C)DeviceMarking(4/5)SamplesLMP8601EDRQ1ACTIVESOICD82500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to150LMP8601EDQ1LMP8601MA/NOPBACTIVESOICD895Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8601MALMP8601MAX/NOPBACTIVESOICD82500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8601MALMP8601QMA/NOPBACTIVESOICD895Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8601QMALMP8601QMAX/NOPBACTIVESOICD82500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8601QMALMP8602MA/NOPBACTIVESOICD895Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8602MALMP8602MAX/NOPBACTIVESOICD82500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8602MALMP8602MM/NOPBACTIVEVSSOPDGK81000Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AN3ALMP8602MME/NOPBACTIVEVSSOPDGK8250Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AN3ALMP8602MMX/NOPBACTIVEVSSOPDGK83500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AN3ALMP8602QMA/NOPBACTIVESOICD895Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8602QMALMP8602QMAX/NOPBACTIVESOICD82500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8602QMALMP8602QMM/NOPBACTIVEVSSOPDGK81000Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AF7ALMP8602QMME/NOPBACTIVEVSSOPDGK8250Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AF7ALMP8602QMMX/NOPBACTIVEVSSOPDGK83500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AF7ALMP8603MA/NOPBACTIVESOICD895Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8603MALMP8603MAX/NOPBACTIVESOICD82500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8603MAPACKAGEOPTIONADDENDUMwww.
ti.
com6-Feb-2020Addendum-Page2OrderableDeviceStatus(1)PackageTypePackageDrawingPinsPackageQtyEcoPlan(2)Lead/BallFinish(6)MSLPeakTemp(3)OpTemp(°C)DeviceMarking(4/5)SamplesLMP8603MM/NOPBACTIVEVSSOPDGK81000Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AP3ALMP8603MME/NOPBACTIVEVSSOPDGK8250Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AP3ALMP8603MMX/NOPBACTIVEVSSOPDGK83500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AP3ALMP8603QMA/NOPBACTIVESOICD895Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8603QMALMP8603QMAX/NOPBACTIVESOICD82500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125LMP8603QMALMP8603QMM/NOPBACTIVEVSSOPDGK81000Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AH7ALMP8603QMME/NOPBACTIVEVSSOPDGK8250Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AH7ALMP8603QMMX/NOPBACTIVEVSSOPDGK83500Green(RoHS&noSb/Br)SNLevel-1-260C-UNLIM-40to125AH7A(1)Themarketingstatusvaluesaredefinedasfollows:ACTIVE:Productdevicerecommendedfornewdesigns.
LIFEBUY:TIhasannouncedthatthedevicewillbediscontinued,andalifetime-buyperiodisineffect.
NRND:Notrecommendedfornewdesigns.
Deviceisinproductiontosupportexistingcustomers,butTIdoesnotrecommendusingthispartinanewdesign.
PREVIEW:Devicehasbeenannouncedbutisnotinproduction.
Samplesmayormaynotbeavailable.
OBSOLETE:TIhasdiscontinuedtheproductionofthedevice.
(2)RoHS:TIdefines"RoHS"tomeansemiconductorproductsthatarecompliantwiththecurrentEURoHSrequirementsforall10RoHSsubstances,includingtherequirementthatRoHSsubstancedonotexceed0.
1%byweightinhomogeneousmaterials.
Wheredesignedtobesolderedathightemperatures,"RoHS"productsaresuitableforuseinspecifiedlead-freeprocesses.
TImayreferencethesetypesofproductsas"Pb-Free".
RoHSExempt:TIdefines"RoHSExempt"tomeanproductsthatcontainleadbutarecompliantwithEURoHSpursuanttoaspecificEURoHSexemption.
Green:TIdefines"Green"tomeanthecontentofChlorine(Cl)andBromine(Br)basedflameretardantsmeetJS709Blowhalogenrequirementsof<=1000ppmthreshold.
Antimonytrioxidebasedflameretardantsmustalsomeetthe<=1000ppmthresholdrequirement.
(3)MSL,PeakTemp.
-TheMoistureSensitivityLevelratingaccordingtotheJEDECindustrystandardclassifications,andpeaksoldertemperature.
(4)Theremaybeadditionalmarking,whichrelatestothelogo,thelottracecodeinformation,ortheenvironmentalcategoryonthedevice.
(5)MultipleDeviceMarkingswillbeinsideparentheses.
OnlyoneDeviceMarkingcontainedinparenthesesandseparatedbya"~"willappearonadevice.
IfalineisindentedthenitisacontinuationofthepreviouslineandthetwocombinedrepresenttheentireDeviceMarkingforthatdevice.
PACKAGEOPTIONADDENDUMwww.
ti.
com6-Feb-2020Addendum-Page3(6)Lead/BallFinish-OrderableDevicesmayhavemultiplematerialfinishoptions.
Finishoptionsareseparatedbyaverticalruledline.
Lead/BallFinishvaluesmaywraptotwolinesifthefinishvalueexceedsthemaximumcolumnwidth.
ImportantInformationandDisclaimer:TheinformationprovidedonthispagerepresentsTI'sknowledgeandbeliefasofthedatethatitisprovided.
TIbasesitsknowledgeandbeliefoninformationprovidedbythirdparties,andmakesnorepresentationorwarrantyastotheaccuracyofsuchinformation.
Effortsareunderwaytobetterintegrateinformationfromthirdparties.
TIhastakenandcontinuestotakereasonablestepstoproviderepresentativeandaccurateinformationbutmaynothaveconducteddestructivetestingorchemicalanalysisonincomingmaterialsandchemicals.
TIandTIsuppliersconsidercertaininformationtobeproprietary,andthusCASnumbersandotherlimitedinformationmaynotbeavailableforrelease.
InnoeventshallTI'sliabilityarisingoutofsuchinformationexceedthetotalpurchasepriceoftheTIpart(s)atissueinthisdocumentsoldbyTItoCustomeronanannualbasis.
OTHERQUALIFIEDVERSIONSOFLMP8601,LMP8601-Q1,LMP8602,LMP8602-Q1,LMP8603,LMP8603-Q1:Catalog:LMP8601,LMP8602,LMP8603Automotive:LMP8601-Q1,LMP8602-Q1,LMP8603-Q1NOTE:QualifiedVersionDefinitions:Catalog-TI'sstandardcatalogproductAutomotive-Q100devicesqualifiedforhigh-reliabilityautomotiveapplicationstargetingzerodefectsTAPEANDREELINFORMATION*AlldimensionsarenominalDevicePackageTypePackageDrawingPinsSPQReelDiameter(mm)ReelWidthW1(mm)A0(mm)B0(mm)K0(mm)P1(mm)W(mm)Pin1QuadrantLMP8601EDRQ1SOICD82500330.
012.
46.
55.
42.
08.
012.
0Q1LMP8601MAX/NOPBSOICD82500330.
012.
46.
55.
42.
08.
012.
0Q1LMP8601QMAX/NOPBSOICD82500330.
012.
46.
55.
42.
08.
012.
0Q1LMP8602MAX/NOPBSOICD82500330.
012.
46.
55.
42.
08.
012.
0Q1LMP8602MM/NOPBVSSOPDGK81000178.
012.
45.
33.
41.
48.
012.
0Q1LMP8602MME/NOPBVSSOPDGK8250178.
012.
45.
33.
41.
48.
012.
0Q1LMP8602MMX/NOPBVSSOPDGK83500330.
012.
45.
33.
41.
48.
012.
0Q1LMP8602QMAX/NOPBSOICD82500330.
012.
46.
55.
42.
08.
012.
0Q1LMP8602QMM/NOPBVSSOPDGK81000178.
012.
45.
33.
41.
48.
012.
0Q1LMP8602QMME/NOPBVSSOPDGK8250178.
012.
45.
33.
41.
48.
012.
0Q1LMP8602QMMX/NOPBVSSOPDGK83500330.
012.
45.
33.
41.
48.
012.
0Q1LMP8603MAX/NOPBSOICD82500330.
012.
46.
55.
42.
08.
012.
0Q1LMP8603MM/NOPBVSSOPDGK81000178.
012.
45.
33.
41.
48.
012.
0Q1LMP8603MME/NOPBVSSOPDGK8250178.
012.
45.
33.
41.
48.
012.
0Q1LMP8603MMX/NOPBVSSOPDGK83500330.
012.
45.
33.
41.
48.
012.
0Q1LMP8603QMAX/NOPBSOICD82500330.
012.
46.
55.
42.
08.
012.
0Q1LMP8603QMM/NOPBVSSOPDGK81000178.
012.
45.
33.
41.
48.
012.
0Q1LMP8603QMME/NOPBVSSOPDGK8250178.
012.
45.
33.
41.
48.
012.
0Q1PACKAGEMATERIALSINFORMATIONwww.
ti.
com13-Feb-2020PackMaterials-Page1DevicePackageTypePackageDrawingPinsSPQReelDiameter(mm)ReelWidthW1(mm)A0(mm)B0(mm)K0(mm)P1(mm)W(mm)Pin1QuadrantLMP8603QMMX/NOPBVSSOPDGK83500330.
012.
45.
33.
41.
48.
012.
0Q1*AlldimensionsarenominalDevicePackageTypePackageDrawingPinsSPQLength(mm)Width(mm)Height(mm)LMP8601EDRQ1SOICD82500367.
0367.
035.
0LMP8601MAX/NOPBSOICD82500367.
0367.
035.
0LMP8601QMAX/NOPBSOICD82500367.
0367.
035.
0LMP8602MAX/NOPBSOICD82500367.
0367.
035.
0LMP8602MM/NOPBVSSOPDGK81000210.
0185.
035.
0LMP8602MME/NOPBVSSOPDGK8250210.
0185.
035.
0LMP8602MMX/NOPBVSSOPDGK83500367.
0367.
035.
0LMP8602QMAX/NOPBSOICD82500367.
0367.
035.
0LMP8602QMM/NOPBVSSOPDGK81000210.
0185.
035.
0LMP8602QMME/NOPBVSSOPDGK8250210.
0185.
035.
0LMP8602QMMX/NOPBVSSOPDGK83500367.
0367.
035.
0LMP8603MAX/NOPBSOICD82500367.
0367.
035.
0LMP8603MM/NOPBVSSOPDGK81000210.
0185.
035.
0LMP8603MME/NOPBVSSOPDGK8250210.
0185.
035.
0LMP8603MMX/NOPBVSSOPDGK83500367.
0367.
035.
0LMP8603QMAX/NOPBSOICD82500367.
0367.
035.
0PACKAGEMATERIALSINFORMATIONwww.
ti.
com13-Feb-2020PackMaterials-Page2DevicePackageTypePackageDrawingPinsSPQLength(mm)Width(mm)Height(mm)LMP8603QMM/NOPBVSSOPDGK81000210.
0185.
035.
0LMP8603QMME/NOPBVSSOPDGK8250210.
0185.
035.
0LMP8603QMMX/NOPBVSSOPDGK83500367.
0367.
035.
0PACKAGEMATERIALSINFORMATIONwww.
ti.
com13-Feb-2020PackMaterials-Page3www.
ti.
comPACKAGEOUTLINEC.
228-.
244TYP[5.
80-6.
19].
069MAX[1.
75]6X.
050[1.
27]8X.
012-.
020[0.
31-0.
51]2X.
150[3.
81].
005-.
010TYP[0.
13-0.
25]0-8.
004-.
010[0.
11-0.
25].
010[0.
25].
016-.
050[0.
41-1.
27]4X(0-15)A.
189-.
197[4.
81-5.
00]NOTE3B.
150-.
157[3.
81-3.
98]NOTE44X(0-15)(.
041)[1.
04]SOIC-1.
75mmmaxheightD0008ASMALLOUTLINEINTEGRATEDCIRCUIT4214825/C02/2019NOTES:1.
Lineardimensionsareininches[millimeters].
Dimensionsinparenthesisareforreferenceonly.
Controllingdimensionsareininches.
DimensioningandtolerancingperASMEY14.
5M.
2.
Thisdrawingissubjecttochangewithoutnotice.
3.
Thisdimensiondoesnotincludemoldflash,protrusions,orgateburrs.
Moldflash,protrusions,orgateburrsshallnotexceed.
006[0.
15]perside.
4.
Thisdimensiondoesnotincludeinterleadflash.
5.
ReferenceJEDECregistrationMS-012,variationAA.
18.
010[0.
25]CAB54PIN1IDAREASEATINGPLANE.
004[0.
1]CSEEDETAILADETAILATYPICALSCALE2.
800www.
ti.
comEXAMPLEBOARDLAYOUT.
0028MAX[0.
07]ALLAROUND.
0028MIN[0.
07]ALLAROUND(.
213)[5.
4]6X(.
050)[1.
27]8X(.
061)[1.
55]8X(.
024)[0.
6](R.
002)TYP[0.
05]SOIC-1.
75mmmaxheightD0008ASMALLOUTLINEINTEGRATEDCIRCUIT4214825/C02/2019NOTES:(continued)6.
PublicationIPC-7351mayhavealternatedesigns.
7.
Soldermasktolerancesbetweenandaroundsignalpadscanvarybasedonboardfabricationsite.
METALSOLDERMASKOPENINGNONSOLDERMASKDEFINEDSOLDERMASKDETAILSEXPOSEDMETALOPENINGSOLDERMASKMETALUNDERSOLDERMASKSOLDERMASKDEFINEDEXPOSEDMETALLANDPATTERNEXAMPLEEXPOSEDMETALSHOWNSCALE:8XSYMM1458SEEDETAILSSYMMwww.
ti.
comEXAMPLESTENCILDESIGN8X(.
061)[1.
55]8X(.
024)[0.
6]6X(.
050)[1.
27](.
213)[5.
4](R.
002)TYP[0.
05]SOIC-1.
75mmmaxheightD0008ASMALLOUTLINEINTEGRATEDCIRCUIT4214825/C02/2019NOTES:(continued)8.
Lasercuttingapertureswithtrapezoidalwallsandroundedcornersmayofferbetterpasterelease.
IPC-7525mayhavealternatedesignrecommendations.
9.
Boardassemblysitemayhavedifferentrecommendationsforstencildesign.
SOLDERPASTEEXAMPLEBASEDON.
005INCH[0.
125MM]THICKSTENCILSCALE:8XSYMMSYMM1458IMPORTANTNOTICEANDDISCLAIMERTIPROVIDESTECHNICALANDRELIABILITYDATA(INCLUDINGDATASHEETS),DESIGNRESOURCES(INCLUDINGREFERENCEDESIGNS),APPLICATIONOROTHERDESIGNADVICE,WEBTOOLS,SAFETYINFORMATION,ANDOTHERRESOURCES"ASIS"ANDWITHALLFAULTS,ANDDISCLAIMSALLWARRANTIES,EXPRESSANDIMPLIED,INCLUDINGWITHOUTLIMITATIONANYIMPLIEDWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSEORNON-INFRINGEMENTOFTHIRDPARTYINTELLECTUALPROPERTYRIGHTS.
TheseresourcesareintendedforskilleddevelopersdesigningwithTIproducts.
Youaresolelyresponsiblefor(1)selectingtheappropriateTIproductsforyourapplication,(2)designing,validatingandtestingyourapplication,and(3)ensuringyourapplicationmeetsapplicablestandards,andanyothersafety,security,orotherrequirements.
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TI'sproductsareprovidedsubjecttoTI'sTermsofSale(www.
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