Texas Instruments LP5560 Handleiding

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LP5560

VDD

LED

GND

CTRL

+

-

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

LP5560

SNVS873E–AUGUST2012–REVISEDNOVEMBER2016

LP5560ProgrammableSingle-LEDDriverWithSimpleSingle-WireControl

andSmallSolutionSize

1

1Features

1

•WideInput-VoltageRange:2.7Vto5.5V

•AdjustableOutputCurrent:2.8mAto19.5mA

•ProgrammableBlinkingSequencewithCurrent

RiseandFallTimeControl

•DefaultBlinkingSequenceforSimpleSystems

WithoutProgrammingCapabilities

•Single-WireInterface

•ConstantCurrentHighSideOutputDriver

•VeryLowHeadroomVoltage(40mVTypical)

•Ultra-SmallSolutionSize–NoExternal

Components

2Applications

•IndicatorLEDsinCellPhonesandOtherPortable

Devices

•CardReaders

•FuelDispensers

•Pedometers

•ElectronicAccessControl

•WhereSimpleFeedbackisNeeded

3Description

TheLP5560isaprogrammableLEDdriverthatcan

generatevarietyofblinkingsequenceswithupto

threepulsesofdifferentlengthpersequence.Blinking

sequencescanbeprogrammedthroughasingle-wire

interface.Programmableparametersincludeonand

offtimesaswellasriseandfalltimes.Default

sequenceisprogrammedintotheLP5560toenable

theuseofdeviceinsimplesystemswithout

programmingcapabilities.

Verylowheadroomvoltageeliminatestheneedfora

boostconverter.IndicatorLEDscanbedrivendirectly

fromthebattery.Smallpackagesizecombinedwith

zeroexternalcomponentsminimizesthesolution

size.

LP5560isavailableinTI’stiny4-pinDSBGApackage

with0.4-mmpitch.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

LP5560DSBGA(4)0.886mm×0.886mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

TypicalApplication

Product specificaties