凌力尔特模拟创新杂志 (SEPTEMBER 2009）
Today’shighreliabilitysystemsrequirecomplexdigitalpowermanagementsolutionstosequence,supervise,monitorandmarginalargenumberofvoltagerails.Indeed,itisnotunusualforasingleapplicationboardtohavedozensofrails,eachwithitsownuniquerequirements.TypicallythepowermanagementsolutionsforthesesystemsrequirethatseveraldiscretedevicescontrolledbyanFPGAoramicrocontrolleraresprinkledaroundtheboardinordertosequence,super-vise,monitorandmarginthepowersupplyarray.Inthisscheme,signifi-canttimeisrequiredtodevelopthenecessaryfirmware,andthetendencytounderestimatethecomplexityanddurationofthattaskiswellknown.TheLTC®2978octalPMBuspowersupplymonitorandcontrollerwithEEPROMofferspowersupplysystemdesignersanintegrated,modularsolutionthatreducesdebuggingtimeandeffortovermicrocontrollersolu-tions.TheLTC2978cansequenceon,sequenceoff,monitor,supervise,marginandtrimuptoeightpowersupplies.MultipleLTC2978scanbe.LINEARTECHNOLOGYSEPTEMBER2009VOLUMEXIXNUMBER3INTHISISSUE…PowerManagementICCOVERARTICLEDigitallyMonitorsandControlsEightSuppliesPowerManagementICDigitallyMonitorsandControlsEightSupplies............................................................1AndrewGardnerLinearintheNews…............................2byAndrewGardner
