A704日光灯驱动方案

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1、A704AC/DCLightingA704日光灯LEDdriver-15W(15串串串20併併併)~20WPreliminaryapplicationdataFeatures–♦LowStartupCurrent(5uA)♦LowOperatingCurrent(3mA)♦Lead-edgeblanking♦InternalOVPdetected.♦150℃℃℃OTPSensorwithHysteresis♦UnderVoltageLockout(UVLO)♦GateOutputVoltageClampedat16Vmax♦Drivingschem

2、e–15S…P＋＋＋VDDR5U1ENR2A704Cin2DRGNDGateCSR8DZR7R4C3RXL3FUSEAC220VL1-1R1Q1R11～～～+C1D3R3CxR9DFBridgeDiodeD4CoutC2～～～－－－D5NTCDBRCopyright2008,ADDtekCorp.2008/10/8A704AC/DCLighting♦ComponentListC.R.NOQ’TYDescriptionVendorContactorPackageU11A704AC/DCPWMICADDmTekSOT23-5Q11PowerNMOS5

3、A/600VFairchildTO-252,CX1FilmCapMPP0.1uFChiefconCKX104ML31IND800uHRdc=0.8ohm,2A,GangSong台制电感厂–刚松GSRCU1016gangsong@gangsong.comGSRCU1016-801K(精准度要求高,张树芬小姐5%误差)L1-125mH,0.5A,BU9-2820R5BLCoilcraft0755-88354122#805廖正根-DF1DIOSuperfast400V2A,ER2GPANJITSMBDR1DIOFastDiode600V1A,FR105P

4、ANJITSMBDBR1BridgeDiode600V1AB6SPANJITMDID3,D4,D53DIOSuperfast400V1A,ES1GPANJITSMBC1,C22E.CCap：10uF/400VNCC5mmx直径10mmx高17mmR2,R821MΩrelacSMD0805R41NTC2kΩSHIHENGbeibeiye@hotmail.comSMD0805业蓓蓓R7110ΩrelacSMD0603RX147kΩrelacSMD0603R5112RΩrelacSMD0603R11151KΩrelacSMD0805Cout1E.CCap

5、：220uF/63VNCC5mmx直径10mmx高17mmCin21MLCC2.2uF/35VSMD1206C31MLCC100pF(NC)-SMD0603DZ1Zener30Vz(Vz=VLED+-20V)-SOD-80R1.12.2Ω(精准度要求高,1%误差)relacSMD1206R312.2Ω(精准度要求高,1%误差)relacSMD1206R912.0Ω(精准度要求高,1%误差)relacSMD1206FUSE1250V1A---NTC150D-9,50Ω,1ASHIHENGbeibeiye@hotmail.com-(XKMF21-50D

6、-9)业蓓蓓Copyright2008,ADDtekCorp.2008/10/8A704AC/DCLighting♦Efficiency,outputcurrentrippleandPFCtest輸入電壓輸入瓦特數輸出電壓輸出電流實際電流效率PFC電流漣波(mA)22015.846.80.2990.29888.27%0.88+/-15mAa.输入电流波形,無高突波電流情形b.输出LED电流波形,验证+/-15mA电流涟波Copyright2008,ADDtekCorp.2008/10/8A704AC/DCLighting♦Lineregulat

7、iontest输出瓦特数输入电压(AC/V)(AC/V)(AC/V)输入瓦数(W)输出电压(V)输出电流(A)效率PFCPFCPFC(W)(W)(W)19019019016.3046.300.3100.3100.31014.3588.06%0.88419519519516.2046.300.3070.3070.30714.2187.74%0.89320020020016.1046.300.3040.3040.30414.0887.42%0.88520520520516.0046.300.3020.3020.30213.9887.39%0.88721

8、021021015.9046.400.3000.3000.30013.9287.55%0.88021521521515.8