NXP TEA1713 150W 一体化PC适配器解决方案

NXPTEA1713150W一体化PC适配器解决方案NXP公司的TEA1713集成了PFC控制器和半桥谐振转换器（HBC），通用火线输入电压70V到276V(AC)，具有过流保护（OCP），过压保护（OVP）和去磁传感，保证在所有条件下安全工作。HBC控制器集成了高压电压转移器，半桥开关频率最大为500kHz，自适应的非重叠时间和突发模式开关，主要用在LCDTV，等离子电视和适配器。本文介绍了TEA1713主要特性，方框图，应用框图和250WLCDTV与70W笔记本电脑适配器电源电路图，以及采用TEA1713和TEA1795150W一体化PC适配器电路图，材料清单。

TEA1713andTEA1795demoboardfor150Wall-in-onePCadapter

TheTEA1713integratesaPowerFactorCorrector(PFC)controllerandacontrollerforaHalf-BridgeresonantConverter(HBC)inamulti-chipIC.ItprovidesthedrivefunctionforthediscreteMOSFETinanup-converterandforthetwodiscretepowerMOSFETsinaresonanthalf-bridgeconfiguration.

TheefficientoperationofthePFCisachievedbyimplementingfunctionssuchasquasi-resonantoperationathighpowerlevelsandquasi-resonantoperationwithvalleyskippingatlowerpowerlevels.OverCurrentProtection(OCP),OverVoltageProtection(OVP),anddemagnetizationsensingensuresafeoperationunderallconditions.TheHBCmoduleisaisahigh-voltagecontrollerforazero-voltageswitchingLLCresonantconverter.Itcontainsahigh-voltagelevelshiftcircuitandseveralprotectioncircuitsincludingOCP,open-loopprotection,capacitivemodeprotectionandageneralpurposelatchedprotectioninput.

Thehigh-voltagechipisfabricatedusingaproprietaryhigh-voltageBipolar-CMOS-DMOSpowerlogicprocessthatenablesefficientdirectstart-upfromtherectifieduniversalmainsvoltage.Thelow-voltageSiliconOnInsulator(SOI)chipisusedforaccurate,high-speedprotectionfunctionsandcontrol.

ThetopologyofaPFCcircuitandaresonantconvertercontrolledbytheTEA1713isveryflexible,enablingittobeusedinabroadrangeofapplicationswithawidemainsvoltagerange.CombiningPFCandHBCcontrollersinasingleICmakestheTEA1713idealforcontrollingpowersuppliesinLCDandplasmatelevisions.

Highlyefficientandreliablepowersuppliesprovidingover100WcanbedesignedeasilyusingtheTEA1713,withaminimumofexternalcomponents.

TEA1713主要特性：

1．Generalfeatures

IntegratedPFCandHBCcontrollers

Universalmainssupplyoperation(70Vto276V(AC))

Highlevelofintegrationresultinginalowexternalcomponentcountandacosteffectivedesign

Enableinput(enableonlyPFCorbothPFCandHBCcontrollers)

On-chiphigh-voltagestart-upsource

Stand-aloneoperationorICsuppliedfromexternalDCsource

2．PFCcontrollerfeatures

Boundarymodeoperationwithon-timecontrol

Valley/zerovoltageswitchingforminimumswitchinglosses

Frequencylimitingtoreduceswitchinglosses

Accurateboostvoltageregulation

Burstmodeswitchingwithsoftstartandsoftstop

3．HBCcontrollerfeatures

Integratedhigh-voltagelevelshifter

Adjustableminimumandmaximumfrequency

Maximum500kHzhalf-bridgeswitchingfrequency

Adaptivenon-overlaptime

Burstmodeswitching

4．Protectionfeatures

Saferestartmodeforsystemfaultconditions

Generallatchedprotectioninputforoutputovervoltageprotectionorexternaltemperatureprotection

Protectiontimerfortime-outandrestart

Overtemperatureprotection

Soft(re)startforbothcontrollers

Undervoltageprotectionformains(brownout),boost,ICsupplyandoutputvoltage

Overcurrentregulationandprotectionforbothcontrollers

Accurateovervoltageprotectionforboostvoltage

CapacitivemodeprotectionforHBCcontroller

TEA1713应用：

LCDtelevision

Plasmatelevision

Adapters

图1。TEA1713方框图

图2。TEA1713内部电源框图

图3。TEA1713应用框图

图4。TEA1713250WLCDTV电源电路图（1）

图5。TEA1713250WLCDTV电源电路图（2）

图6。TEA1713250WLCDTV电源电路图（3）

图7。TEA171370W笔记本电脑适配器电源电路图（1）

图8。TEA171370W笔记本电脑适配器电源电路图（2）

采用TEA1713和TEA1795150W一体化PC适配器

ThepurposeofthedemoboardistodemonstratetheoperationoftheTEA1713TandTEA1795Tinasingleoutputsupplyincludingburstmodeoperation.Theperformanceisaccordingtoday’sgeneralstandardsandcanbeusedasastartingpointforfurtherdevelopment.

图9。150W一体化PC适配器外形图

图10。150W一体化PC适配器外形图（PFC部分）

图11。150W一体化PC适配器外形图（HBC部分）

图12。150W一体化PC适配器PCB布局图（顶层）

150W一体化PC适配器材料清单

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