Texas Instruments LP5569 Bedienungsanleitung

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VIN

AGND

SCL

SDA

LED0

LED1

LED2

LED3

EN/PWM

CLK

GPIO/TRIG/INT

ADDR

LED4

LED5

LED6

LED7

LED8

C1–

C1+

VOUT

C

OUT

1μF

C

FLY1

1Fμ

C

IN

1μF

µC

C2–

C2+

C

FLY2

1Fμ

V1P8

PGND

2.5Vto5.5V

1.8 V

VIN

VIN

Copyright © 2017,Texas Instruments Incorporated

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

LP5569

SNVSAP8A–JULY2017–REVISEDSEPTEMBER2017

LP5569Nine-ChannelI

2

CRGBLEDDriverWithEngineControlandChargePump

1

1Features

1

•SupplyVoltageRange:2.5V–5.5V

•NineHigh-AccuracyCurrentSinks

–25.5mAMaximumperChannel

–8-BitIndividualCurrentControl

–12-Bit20-kHzInternalIndividualPWMControl

WithoutAudioNoise

•ThreeProgrammableLEDEngines

–IndependentIlluminationControlWithout

ActiveMicrocontrollerControl

–SynchronizationAmongMultipleDevices

–Upto256InstructionsinSRAMMemoryfor

StoringSequencesofLightingPatterns

–LP5523-andLP55231-Device-Compatible

CommandSet

•FlexibleDimmingControl

–I

2

CDimmingControl

–PWMDirect-InputDimming

–PWMInputFrequency:100-Hzto20-kHz

•AdaptiveHigh-EfficiencyCharge-PumpControlfor

DrivingHigh-V

F

LEDsWithLowBatteryVoltage

•MasterFaderControlAllowsDimmingofMultiple

LEDsbyWritingtoOnlyOneRegistertoReduce

theI

2

CBusTraffic

•2-µALowStandbyCurrentand10-µAin

AutomaticPower-SaveModeWhenLEDsAre

Inactive

•POR,UVLO,andTSDProtection

2Applications

LEDLighting,IndicatorLights,andFunLightsfor:

•SmartSpeaker

•SmartHomeAppliance

•Doorbell

•ElectricLock

•SmokeDetector

•Thermostat

•Set-TopBox

•SmartRouter

•Bluetooth

®

Headset

•CellPhone

3Description

TheLP5569deviceisaprogrammable,easy-to-use

9-channelI

2

CLEDdriverdesignedtoproducelighting

effectsforvariousapplications.TheLEDdriveris

equippedwithaninternalSRAMmemoryforuser-

programmedsequencesandthreeprogrammable

LEDengines,whichallowoperationwithout

processorcontrol.Autonomousoperationreduces

systempowerconsumptionwhentheprocessorisput

insleepmode.

Ahigh-efficiencychargepumpenablesthedrivingof

LEDswithhighV

F

,evenwith2.5-Vinputvoltage.The

LP5569LEDdrivermaintainsgoodefficiencyovera

wideoperationalvoltagerangebyautonomously

selectingthebestcharge-pumpgainbasedonLED

forwardvoltagerequirements.

TheLP5569deviceenterspower-savemodewhen

LEDsarenotactive,loweringidle-current

consumptionconsiderably.Aflexibledigitalinterface

allowstheconnectionofuptoeightLP5569devices

withauniqueI

2

Cslaveaddressforeachdevicein

thesamesystem,whichsupportssynchronizationof

thelightingeffectsamongalldevices.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

LP5569WQFN(24)4.00mm×4.00mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

SimplifiedSchematic

Produktspezifikationen