NXP公司的TEA152x系列STARplug是开关电源(SMPS)控制器,能必要相连到火线整流后的高压。器件使用高压EZ-HVSOI工艺和高压双近于有序MOS(BiCMOS)工艺生产,构建了650V高压电源,火线工作电压从80V到276V,可获取的功率高达30W,有普遍的用途,还包括充电器,适配器,STB,DVD,TV/监视器电源,PC外设和MCU电源等。本文讲解了TEA152x主要特性和优势,方框图,多种应用于和STARbuck评估板主要特性,电路图和所用元器件。
TEA152x:SMPSICsforlow-powersystems TheTEA152xfamilySTARplugisaSwitchedModePowerSupply(SMPS)controllerICthatoperatesdirectlyfromtherectifieduniversalmains.Itisimplementedinthehigh-voltageEZ-HVSOIprocess,combinedwithalow-voltageBipolarComplementaryMetal-OxideSemiconductor(BiCMOS)process. Thedeviceincludesahigh-voltagepowerswitchandacircuitforstart-updirectlyfromtherectifiedmainsvoltage.Adedicatedcircuitforvalleyswitchingisbuiltin,whichmakesaveryefficientslim-lineelectronicpower-plugconceptpossible.Initsmostbasicversionofapplication,theTEA152xfamilyactsasavoltagesource.Here,noadditionalsecondaryelectronicsarerequired.Acombinedvoltageandcurrentsourcecanberealizedwithminimumcostsforexternalcomponents.ImplementationoftheTEA152xfamilyrendersanefficientandlowcostpowersupplysystem.。
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