Texas Instruments LP5522 Bruksanvisning
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LP5522
-+
GNDGNDT
CTRL
VDDISET
LED
V
IN
LP5522
www.ti.com
SNVS488A–JUNE2007–REVISEDMARCH2013
ProgrammableLEDDriver
CheckforSamples:LP5522
1
FEATURES
DESCRIPTION
TheLP5522isasimplesinglewireprogrammable
2
•ProgrammableBlinkingSequence
LEDcontrollerinsixbumpDSBGApackage.It
–1to3ProgrammablePulses
providesconstantcurrentflowthroughhighside
–1msto255msLEDonTime
driver.Outputcurrentcanbesetfrom1mAto20mA
byusinganexternalresistorontheISETpin.Ifno
–10msto2500msLEDOffTime
externalresistorisused,outputcurrentissetto5mA
–SingleorContinuousRunofProgrammed
defaultcurrent.TheLP5522iscontrolledusingonly
BlinkingSequence
onesignal.ThesignalcontrolseitherdirectlytheLED
•ConstantCurrentHighSideOutputDriver
driveroritlaunchespreviouslyprogrammedblinking
sequence.
•AdjustableCurrentwithExternalResistor
•0.2µATypicalShutdownCurrent
TheLP5522worksautonomouslywithoutaclock
signalfromthemasterdevice.VerylowLEDdriver
•AutonomousOperationwithoutExternalClock
headroomvoltagemakespossibletousesupply
•DSBGA-6Packagewith0.4mmPitch:
voltagesclosetoLEDforwardvoltage.Current
–1.215mmx0.815mmx0.6mm(LxWxH)
consumptionoftheLP5522isminimizedwhenLED
isturnedoffandoncecontrollerisdisabledall
supportingfunctionsarealsoshutdown.Verysmall
APPLICATIONS
DSBGApackagetogetherwithminimumnumberof
•IndicatorLights
externalcomponentsisabestfitforhandheld
•PhoneCosmetics
devices.
•Toys
TypicalApplication
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2007–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Produktspecifikationer
| Varumärke: | Texas Instruments |
| Kategori: | ej kategoriserat |
| Modell: | LP5522 |
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