小功率离线式开关电源控制芯片dk1203英文版规格书

《小功率离线式开关电源控制芯片dk1203英文版规格书》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、小功率离线式开关电源控制芯片DK1203英文版规格书SMALLPOWEROFF-LINESWITCHMODEPOWERCONTROLLER-DK1203•DVD/VCDpowersupply•Electromagneticoven•LEDdriver1.APPLICATIONS•AC/DCpoweradapters•Airconditionerpowersupplypowersupply-DVBpowersupplyapplications•TV/Monitorpowersupply2.MAINFEATURES・85V—265VwiderangeACpowerinput・・B

2、uild-in700Vpowertransistor.・Internalintegratedhighvoltagestartingcircuit,noneedforadditionalresistance.・Integratedself-startcircuit.・Pulse-WidthModulation(PWM)controlledsystem.・VCCoperatingvoltagerange:4-6V.・65kHzswitchingfrequency.・Automaticallyturntoskipcyclemodeunderlightloadcondition.-O

3、vercurrent,Overloading,OvertemperatureandOvervoltageProtection.・Standbypowerconsumptionlowerthen0.3W.-InternalfrequencymodulationcircuittoreduceEMIfiltercost.3.POWERRANGEInputVoltageMAX.outputpower85-265VAC85-145VAC180-265VAC4.CONNECTIONDIAGRAM(DIP-8)??????TEL:400-033-6518www.linkage.cn・1・s

4、ale@linkage.cnSMALLPOWEROFF-LINESWITCHMODEPOWERCONTROLLER-DK1203PINFUNCTIONPinNO.PinNameFunctionStartuppin.InternalstartupcircuittocontactwithOCpin.Powersupplyofcontrolcircuits,contactedwithanexternalgroundedcapacitorofIOuF^IOOuFGroundreferenee4567,8NCFBNCOCEmptypinwithoutinternalcormection

5、.Feedbackcontrolpin,connectedwithInF~groundedtocontroloutput・Emptypinwithoutinternalconnection.Outputpin.ConnectedwithinternalhighvoltageCollectorpointandswitchmodetransformer.5・ABSOLUTEMAXIMUMRATINGSIvccVcolCurrentofsupplyvoltageCollectortoGNDvoltage100-0.3-730mAVvoltageV0.8AmW°C°C+280°C/5

6、S??????TEL:400-033-6518www.linkage.cn・2・sale@linkage.cnSMALLPOWEROFF-LINESWITCHMODEPOWERCONTROLLER-DK12036.ELECTRICALCHARACTERISTICValueMin.Typ.Max.Vcc(WorkPowerSupply)StartthresholdVoltageRestartVoltageProtectVoltageofVCCCurrentofVccStarttimeBJTVocBreakdownvoltageOCProtectionVoltagePeakCur

7、rentProtectionPWMOutputfrequencySteppedFrequencyDutycycleofPWMControlvoltageFbACinput:85V-265VACinput:85V-265VACinput:85V-265VACinput:85V-265VVcc=5V,Fb=2.2VACinput:85Vloc=lmAL=1.2mHVcc=5V,Fb=1.6V—2.8VVcc=4.6V,Fb=2.8V—3.6V44.83.66.2510一700460500.0555.04.0