Texas Instruments LP5562 Bruksanvisning
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LP5562
MCU
1 PF
C
IN
SCL
SDA
CLK_32K
ADDR_SEL0
ADDR_SEL1
EN/VCC
VDD
GND
R
G
B
-
+
RGB LED
0...25.5 mA/LED
WLED
VDD
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Folder
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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
LP5562
SNVS820B–APRIL2013–REVISEDDECEMBER2016
LP5562Four-ChannelRGB-orWhite-LEDDriverWithInternalProgramMemory
andIndependentChannelControl
1
1Features
1
•FourIndependentlyProgrammableLEDOutputs
With8-BitCurrentSetting(From0mAto25.5mA
With100-μASteps)and8-BitPWMControl
•TypicalLEDOutputSaturationVoltage60mVand
CurrentMatching1%
•FlexiblePWMControlforLEDOutputs
•AutomaticPower-SaveModeWithExternalClock
•ThreeProgramExecutionEnginesWithFlexible
InstructionSet
•AutonomousOperationWithProgramExecution
Engines
•SRAMProgramMemoryforLightingPattern
Programs
•DSBGA12-PinPackage,0.4-mmPitch
2Applications
•FunLights
•IndicatorLights
•KeypadRGBBacklightingandPhoneCosmetics
3Description
TheLP5562isafour-channelLEDdriverdesignedto
producevarietyoflightingeffects.Thedevicehasa
programmemoryforcreatingvarietyoflighting
sequences.Whentheprogrammemoryhasbeen
loaded,theLP5562canoperateindependently
withoutprocessorcontrol.
TheLP5562isabletoautomaticallyenterpowersave
mode,whenLEDoutputsarenotactiveandthus
loweringcurrentconsumption.
FourindependentLEDchannelshaveaccurate
programmablecurrentsinks,from0mAto25.5mA
with100-μAstepsandflexiblePWMcontrol.Each
channelcanbeconfiguredintoeachofthethree
programexecutionengines.Programexecution
engineshaveprogrammemoryforcreatingdesired
lightingsequenceswithPWMcontrol.
TheLP5562hasfourpin-selectableI
2
Caddresses.
Thisallowsconnectinguptofourparalleldevicesin
oneI
2
Cbus.Thedevicerequiresonlyonesmall,low-
costceramiccapacitor.
DeviceInformation
(1)
PARTNUMBERPACKAGEBODYSIZE(MAX)
LP5562DSBGA(12)1.648mm×1.248mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
TypicalApplicationDiagram
Produktspecifikationer
| Varumärke: | Texas Instruments |
| Kategori: | ej kategoriserat |
| Modell: | LP5562 |
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