Data Sheet

ManualsBrandsSparkfun Electronics ManualsLighting1m LED RGB Addressable Strip - Sealed

WS2812

IntelligentcontrolLED

integratedlightsource

http://www.world-semi.com

FeaturesandBenefits

lControlcircuitandRGBchipareintegratedinapackageof5050components,formacompletecontrolofpixel

point.

lBuilt-insignalreshapingcircuit,afterwavereshapingtothenextdriver,ensurewave-formdistortionnot

accumulate.

lBuilt-inelectricresetcircuitandpowerlostresetcircuit.

lEachpixelofthethreeprimarycolorcanachieve256brightnessdisplay,completed16777216colorfullcolor

display,andscanfrequencynotlessthan400Hz/s.

lCascadingporttransmissionsignalbysingleline.

lAnytwopointthedistancemorethan5mtransmissionsignalwithoutanyincreasecircuit.

lWhentherefreshrateis30fps,lowspeedmodelcascadenumberarenotlessthan512points,highspeedmodenot

lessthan1024points.

lSenddataatspeedsof800Kbps.

lThecolorofthelightwerehighlyconsistent,cost-effective..

Applications

lFull-colormodule,Fullcolorsoftlightsalampstrip.

lLEDdecorativelighting,Indoor/outdoorLEDvideoirregularscreen.

Generaldescription

WS2812isaintelligentcontrolLEDlightsourcethatthecontrolcircuitandRGBchipareintegratedin

apackageof5050components.Itinternalincludeintelligentdigitalportdatalatchandsignalreshapingamplif

icationdrivecircuit.Alsoincludeaprecisioninternaloscillatoranda12Vvoltageprogrammableconstantcurre

-ntcontrolpart,effectivelyensuringthepixelpointlightcolorheightconsistent.

ThedatatransferprotocolusesingleNZRcommunicationmode.Afterthepixelpower-onreset,theDIN

portreceivedatafromcontroller,thefirstpixelcollectinitial24bitdatathensenttotheinternaldatalatch,

theotherdatawhichreshapingbytheinternalsignalreshapingamplificationcircuitsenttothenextcascade

pixelthroughtheDOport.Aftertransmissionforeachpixel，thesignaltoreduce24bit.pixeladoptautoresha

-pingtransmittechnology,makingthepixelcascadenumberisnotlimitedthesignaltransmission,onlydepend

onthespeedofsignaltransmission.

LEDwithlowdrivingvoltage,environmentalprotectionandenergysaving,highbrightness,scatteringangl

eislarge,goodconsistency,lowpower,longlifeandotheradvantages.ThecontrolchipintegratedinLED

abovebecomingmoresimplecircuit,smallvolume,convenientinstallation.

Summary of content (5 pages)

PAGE 1
WS2812 Intelligent control LED integrated light source Features and Benefits l l l l l l l l l Control circuit and RGB chip are integrated in a package of 5050 components, form a complete control of pixel point. Built-in signal reshaping circuit, after wave reshaping to the next driver, ensure wave-form distortion not accumulate. Built-in electric reset circuit and power lost reset circuit.
PAGE 2
WS2812 Intelligent control LED integrated light source Mechanical Dimensions PIN configuration PIN function NO. Symbol 1 DOUT Control data signal output 2 DIN Control data signal input 3 VCC Power supply control circuit 4 NC 5 VDD Power supply LED 6 VSS Ground Absolute Maximum Ratings http://www.world-semi.
PAGE 3
WS2812 Intelligent control LED integrated light source Prameter Symbol Ratings Unit Power supply voltage VCC +6.0~+7.0 V Power supply voltage VDD +6.0~+7.0 V Input voltage VI -0.5～VDD+0.5 V Operation junction temperature Topt -25～+80 ℃ Storage temperature range Tstg -55~+150 ℃ Electrical Characteristics（TA=-20～+70℃，VDD=4.5～5.5V,VSS=0V,unless otherwise specified） Prameter Smybol conditions Min Tpy Max Unit Low voltage output current IOL ROUT —— 18.5 —— mA Idout Vo=0.
PAGE 4
WS2812 Intelligent control LED integrated light source LED characteristic parameter Emitting color Wavelength(nm) Luminous intensity(mcd) Current(mA) Voltage(V) Red 620-630 550-700 20 1.8-2.2 Green 515-530 1100-1400 20 3.0-3.2 Blue 465-475 200-400 20 3.2-3.4 Data transfer time( TH+TL=1.25µs±600ns) T0H 0 code ,high voltage time 0.35us ±150ns T1H 1 code ,high voltage time 0.7us ±150ns T0L 0 code , low voltage time 0.8us ±150ns T1L 1 code ,low voltage time 0.
PAGE 5
WS2812 Intelligent control LED integrated light source Data transmission method： reset code >=50us Data refresh cycle 1 first 2 4 b it D1 Data refresh cycle 2 seco n d 2 4 b it th ird 2 4 b it seco n d 2 4 b it D2 reset code first 2 4 b it th ird 2 4 b it seco n d 2 4 b it th ird 2 4 b it seco n d 2 4 b it th ird 2 4 b it th ird 2 4 b it D3 th ird 2 4 b it D4 Note: The data of D1 is send by MCU,and D2, D3, D4 through pixel internal reshaping amplification to transmit.