使用DS4402/DS4404来保证DC- DC转换器的输出电压

摘要：DS4402或DS4404可调电流DAC用于调整的DC-DC转换器的输出电压的幅度。本文介绍如何正确地选择在一个DC-DC转换器的反馈分压器网络的电阻值时，DS4402或DS4404在设计就业。

Maxim>AppNotes>COMMUNICATIONSCIRCUITSOSCILLATORS/DELAYLINES/TIMERS/COUNTERSPOWER-SUPPLYCIRCUITSKeywords:DC/DCConverter,resistivefeedbackdividernetwork,currentDAC,full-scalecurrent,sourceMay30,2007current,sinkcurrent,outputvoltagemarginAPPLICATIONNOTE4055UsingtheDS4402/DS4404toMargintheOutputVoltageofaDC-DCConverterAbstract:ADS4402orDS4404adjustable-currentDACisusedtoadjustthemarginofaDC-DCconverter'soutputvoltage.ThisarticledescribeshowtoproperlyselecttheresistorvaluesinaDC-DCconverter'sfeedbackdividernetworkwhenaDS4402orDS4404isemployedinthedesign.TheAdjustablePowerSupplyTheDS4402/DS4404DACscontaintwo/fourICadjustablecurrentsourcescapableofsinkingandsourcingcurr