UCC28780

AdaptiveZeroVoltageSwitchingActiveClampFlybackController

UCC28780isahighfrequencyactiveclampflybackcontrollerthatenableshighdensityACtoDCpowersuppliesthatcomplywithstringentglobalefficiencystandardssuchasDoELevelVIandEUCoCV5Tier2.UserprogrammableadvancedcontrollawfeaturesallowperformancetobeoptimizedforbothSiliconSiandGalliumNitrideGaNpowerFETs.DirectoperationwithswitchingdevicesthatcombinedriverandGaNFETsisfurtherenhancedwithlogiclevelgatesignalsandenableoutputs.

ZerovoltageswitchingZVSisachievedoverawideoperatingrangewithadvancedautotuningtechniques,adaptivedeadtimeoptimization,andvariableswitchingfrequencycontrollaw.Usingadaptivemultimodecontrolthatchangestheoperationbasedoninputandoutputconditions,UCC28780enableshighefficiencywhilemitigatingaudiblenoise.Withavariableswitchingfrequencyofupto1MHzandaccurateprogrammableoverpowerprotection,whichprovidesconsistentpowerforthermaldesignacrosswidelinerange,thesizeofpassivecomponentscanbefurtherreducedandenablehighpowerdensity.

UCC28780workswithVDSsensingsynchronousrectifiercontrollers,suchasUCC24612,toachievehigherconversionefficiencyandverycompactdesigns.

FullandPartialZeroVoltageSwitchingZVSofPrimaryFETwithAdaptiveControl
ProgrammableTimingforExternalSiorGaNFETs
HighSwitchingFrequencyupto1MHz
ProgrammableAdaptiveBurstControlandStandbyModeforLightLoadEfficiencywithLowOutputRippleandAudibleNoiseMitigation
BrownoutDetectionwithoutDirectLineSensing
AccurateProgrammableOverPowerProtectionOPPtoSupportPeakPowerMode
FaultProtectionsOverTemperature,OutputOverVoltage,OutputShortCircuit,OverCurrent,andPinFault
DirectInterfacewithOptocouplerBasedFeedbackAllowsforDynamicallyScalableOutputVoltage
InternalSoftStart
NTCThermistorInterfacewithExternalEnable

Alltrademarksarethepropertyoftheirrespectiveowners.

FullandPartialZeroVoltageSwitchingZVSofPrimaryFETwithAdaptiveControl
ProgrammableTimingforExternalSiorGaNFETs
HighSwitchingFrequencyupto1MHz
ProgrammableAdaptiveBurstControlandStandbyModeforLightLoadEfficiencywithLowOutputRippleandAudibleNoiseMitigation
BrownoutDetectionwithoutDirectLineSensing
AccurateProgrammableOverPowerProtectionOPPtoSupportPeakPowerMode
FaultProtectionsOverTemperature,OutputOverVoltage,OutputShortCircuit,OverCurrent,andPinFault
DirectInterfacewithOptocouplerBasedFeedbackAllowsforDynamicallyScalableOutputVoltage
InternalSoftStart
NTCThermistorInterfacewithExternalEnable

Alltrademarksarethepropertyoftheirrespectiveowners.


ControlMethod
DutyCycle Max
Frequency Max kHz
UVLOThresholdsOnOff V
Features
OperatingTemperatureRange C
PackageGroup
Rating
PackageSizemm2WxLPKG

UCC28780	LM5023	UCC28600	UCC28610	UCC28704	UCC28740
Current	Current	Current	Current	Current	Current
99	100	99	100	99	99
1000	130	130	130	85	100
17.510	12.87.5	10.39.3	10.28	217.7	217.75
ZeroVoltageSwitching ActiveClampFlyback	SSR HVStartupConfigurable QRTM GreenMode LightLoadEfficiency PowerDeliveryCompatible	SSR QRTM ErrorAmplifier GreenMode LightLoadEfficiency PowerDeliveryCompatible MotorDriveCompatible AudioCompatible	DCM SSR HVStartup SoftSwitching PowerDeliveryCompatible AudioCompatible MotorDriveCompatible	PSR HVStartupConfigurable FixedCBC NTCConfigurable CVCCControl DCM USBTypeCCompatible IoTCompatible PowerDeliveryCompatible	SSR HVStartup CVCCControl DCM SmartMetersCompatible IoTCompatible USBTypeCCompatible PowerDeliveryCompatible
40to125	40to125	40to105	40to125	40to125	40to125
SOIC WQFN	VSSOP	SOIC	PDIP SOIC	SOT23	SOIC
Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
16SOIC59mm26x9.9SOIC 16WQFN9mm23x3WQFN	8VSSOP: 15 мм2: 4,9 х 3 (VSSOP)	8SOIC: 29 мм2: 6 х 4,9 (SOIC)	Глядзіце ліст (PDIP) 8SOIC: 29 мм2: 6 х 4,9 (SOIC)	6SOT-23: 8 мм2: 2,8 х 2,9 (СОТ-23)	7SOIC: 29 мм2: 6 х 4,9 (SOIC)