InfineonIDP2303120W开关电源解决方案

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1、InfineonIDP2303120W开关电源解决方案Infineon公司的IDP2303是集成了浮点高边驱动器和600V起动单元的多模式PFC和LLC控制器，数字引擎为多模式工作提供先进算法,在整个负载范围内支持最高的效率，主要用在75W到300W的LCD-TV以及通用的开关电源(SMPS).本文介绍了IDP2303产品亮点和主要特性，典型应用电路图以及采用IDP2303的120W24V3.5A12V3ASMPS演示板主要特性与指标，电路图，材料清单和PCB设计图.TheIDP2303isamulti-modePFCandLLCcontrollercombin

2、edwithafloatinghighsidedriverandastartupcell.Adigitalengineprovidesadvancedalgorithmsformulti-modeoperationtosupporthighestefficiencyoverthewholeloadrange・Acomprehensiveandconfigurableprotectionfeaturesetisimplemented.OnlyaminimumofexternalcomponentsarerequiredwiththelowpincountDSO-1

3、6package・TheintegratedHVstartupcellandadvancedburstmodeenabletoachievelowstand-bypower.Inadditionaone-time-programming(OTP)unitisintegratedtoprovideawidesetofconfigurableparametersthathelptoeasethedesigninphase.IDP2303产品亮点：•Integrated600Vstartupcell•Integratedfloatingdriverbasedoncor

4、elesstransformertechnology•Digitalmulti-modeoperationforhigherefficiencycurve•Supportslowstand-bypowerbymeansofdirectX-capdischargefunctionandadvancedburstmodecontrol•Eliminatestheauxiliarypowersupplybymeansofintegratedstartupcellandburstmode•UARTinterfaceforcommunicationandin-circui

5、tconfiguration•Flexibledesign-inbymeansofonetimeprogrammingcapabilityforawiderangeofparametersIDP2303主要特性：•Multi-modePFC•ConfigurablePFCgatedriver•SynchronousPFCandLLCburstmodecontrol•Configurablenon-linearLLCVCOcurve•Configurablesoft-start•VACinputvoltagesensingandXcapdischargeviaHV

6、PinIDP2303应用:•LCD-TV75W~300W•GenerarlSMPS图1.IDP2303框图(g4if图2.IDP2303典型应用电路图釆用IDP2303的120W24V3.5A12V3ASMPS演示板Thedemoboarddescribedinthisdocumentisa120WSMPSusingadigitalPFC-LLCcombicontroller(theIDP2303),whichisthesecondgenerationofdigitalcombicontrollerwitha16pinpackagedevelopedbyInfi

7、neonTechnologies・TheIDP2303isspeciallydesignedforswitchmodepowersuppliesusedinTVpowersystemapplications.TheIDP2303isahighlyintegratedmulti-modepowerfactorcorrection(PFC)andhalf-bridgeLLC(HBLLC)controller.Multi-modeoperationofthePFCcontrollerandzerovoltageswitchingoftheLLCMOSFETscansi

8、gnificantlyi