IC datasheet pdf-AS1119,pdf (144 LED driver with c

(90)singleLEDs.ThedevicescanbeprogrammedviaanI²Ccom-patibleinterface.TheAS1119offerstwoblocksdrivingeach72LEDs(3blockseach30LEDs)with1/9(1/6)cyclerate.Therequiredlinestodriveall144(90)LEDsarereducedto18byusingthecross-plexingfeatureoptimizingspaceonthePCB.Everyblockdriving72(30)LEDscanbeanalogdimmedfrom1to30mAin256steps(8bit).Additionallyeachofthe144(90)LEDscanbedimmedindividuallywith8-bitallowing256stepsoflineardim-ming.ToreduceCPUusageupto6framescanbestoredwithindividualtimedelaysbetweenframestoplaysmallanimationsautomatically.TheAS1119operatesfrom2.7Vto5.5Vandincludesa320mAcharge-pumptodrivealsowhiteLEDs.Thecharge-pumpoperatesin2:3and1:2mode.TheAS1119featuresverylowshutdownandoperationalcurrent.Thedeviceisavailableinaultrasmall36-pinWL-CSP.Figure1.AS1119-TypicalApplicationDiagram2KeyFeatures1MHzI²C-CompatibleInterfaceOpenandShortedLEDErrorDetection-GlobalDetectionofShorts-GlobalDetectionofOpens144LEDsinDotMatrixLow-PowerShutdownCurrentIndividual8-bitLEDPWMControl8-bitAnalogBrightnessControl(1:1),2:3,1:2320mAChargePump6FramesMemoryforAnimationsSupplyVoltageRange:2.7Vto5.5VMinimumPCBspacerequired36-pinWL-CSPpackage3ApplicationsTheAS1119isidealfordotmatrixdisplaysinmobilephones,personalelectronicandtoys.AS1119VDD2.7Vto5.5V9SDASCLµP9VCPAS1119VDD99VCP2.2µF2.2µF4.7µF1µF1µF1µF1µFRSTN4.7µF4.7µF(TopView)PinDescriptionsTable1.PinDescriptionsPinNamePinNumberDescriptionVDD1,VDD2,VDD3A6,E5,E1PositiveSupplyVoltage.Connecttoa+2.7Vto+5.5Vsupply.Bypassthispinwith10µFcapacitancetoGND1,GND2,GND3.VCPF1Charge-PumpOutputVoltage.Connecta2.2µFcapacitortoGND3.C1-,C1+B1,C1FlyingCap1.Connecta1µFcapacitor.C2-,C2+A1,D1FlyingCap2.Connecta1µFcapacitor.GND1B5GroundforVDD1.UsedforCS0-CS8GND2F5GroundforVDD2.UsedforCS9-CS17GND3A2GroundforVDD3.UsedforCharge-PumpSDAC6Serial-DataI/O.OpendraindigitalI/OI²Cdatapin.SCLD6Serial-ClockInput.AD0C5I²CAddressforbit0.PuttoGNDorVDDtosetI²Caddresses.AD1D5I²CAddressforbit1.PuttoGNDorVDDtosetI²Caddresses.RSTNF6ResetInput.Pullthispintologiclowtoresetallcontrolregisters(settodefaultvalues)andtoputthedeviceintopower-down.FornormaloperationpullthispintoVDD.SYNC_IN,SYNC_OUTB6SynchronizationClockInputorOutputIRQE6InterruptRequest.OpendraindigitalOutput.C2-GND3CS2CS1A1A2A3A4CS5CS4CS3B1B2B3B4C1+CS8CS7CS6C1C2C3C4C2+CS11CS10CS9D1D2D3D4VDD3CS14CS13CS12E1E2E3E4VCPCS17CS16CS15F1F2F3F4CS0A5GND1B5AD0C5AD1D5VDD2E5GND2F5VDD1A6SYNC_IN/SYNC_OUTB6SDAC6SCLD6IRQE6RSTNF6C1-±100mAEIA/JESD78AmbientTemperature-40+85ºCJunctionTemperature+125ºCStorageTemperature-55+125ºCPackageBodyTemperature+260ºCThereflowpeaksolderingtemperature(bodytemperature)specifiedisinaccordancewithIPC/JEDECJ-STD-020“Moisture/ReflowSensitivityClassificationforNon-HermeticSolidStateSurfaceMountDevices”.=2.7Vto5.5V,TAMB=-40°Cto+85°C,typ.valuesareatTAMB=+25ºC(unlessotherwisespecified).Table3.ElectricalCharacteristicsSymbolParameterConditionsMinTypMaxUnitVDDOperatingSupplyVoltage2.75.5VIDDSDSoftwareShutdownSupplyCurrentAlldigitalinputsatVDDorGND,VDD=5.5V,TAMB=+25ºC7µAIDDFSDFullShutdownSupplyCurrentPinRSTN=0V,TAMB=+25ºC0.11µAIDDOperatingSupplyCurrent(allcurrentsourcesturnedoff)CPdisabled@VDD=5.5V1.4mAWithCPin2:3mode@VDD=2.7V3WithCPin1:2mode@VDD=2.7V4ISTARTmax.PeakInrushCurrent1.5Amax.DCCurrent700mAIDIGITDigitDriveSinkCurrent(Drivecapabilityofallsourcesofonedigit1,2)1.Notallsourcesareallowedtobefullyonatthesametime.2.guaranteedbydesignCPdisabled500mACPenabledVDD3.3V160VDD≥3.3V320ISEGSegmentDriveSourceCurrentLEDVOUT=1.8VtoVDD-400mV283032mAΔISEGSegmentDriveCurrentMatchingLED33.2%VDSSATSaturationVoltageCurrent=30mA,VDD=5V100mVRDSON