Energie-Faktor-Korrektur UCC28019 UCC28019ADR der Energie-SOIC-8 des Management-IC
Management IC der Energie-SOIC-8
,Energie-Management IC UCC28019
,UCC28019ADR
Energie-Faktor-Korrektur UCC28019 UCC28019ADR der Energie-SOIC-8 des Management-IC
Eigenschaften:
1. verringert Lösung 8-Pin externe Komponenten
2. breites-RangeUniversalAC InputVoltage
3. Fixed65-kHzOperatingFrequency
4.MaximumDutyCycleof 98% (Art.)
5.OutputOver/UndervoltageProtection
6.InputBrown-OutProtection
7. Zyklus-durch-CyclePeakCurrentLimiting
8. OpenLoopDetection•
9. Low-PowerUser-ControlledStandbyMode2
Anwendungen:
1. CCMBoostPowerFactorCorrectionPowerConvertersin Strecke des 100 Kilowatt-W bis >2
2. DigitalTV• HomeElectronics
3. WhiteGoodsand IndustrialElectronics
4.Serverand DesktopPowerSupplies
Beschreibung:
controllerusesthe 1.TheUCC28019A8-pinactivePowerFactorCorrection (PFC) boosttopologyoperatingin ContinuousConductionMode (CCM).
2. Das controlleris suitablefor systemsin das 100 Kilowatt-rangeovera W to>2 breite-rangeuniversalac lineinput.
3. Anfang upcurrentduringundervoltagelockoutislessthan200μA.
4. Theusercan-controllow powerstandbymodeby pullingthe VSENSEpin below0.77V.
5. niedrig--distortionwaveshapingof die achievedwithoutinputlinesensing inputcurrentusingaveragecurrentmodecontrolis, reducingthe externalcomponentcount.
6. Simpleexternalnetworksallowforflexiblecompensationof die currentandvoltagecontrolloops.
7. Theswitchingfrequencyis-internallyfixedand trimmedto besser als ±5% accuracyat25°C. Fast1.5-Apeakgatecurrentdrivestheexternalswitch.
8. Numeroussystem-levelprotectionfeaturesincludepeakcurrentlimit, softover-gegenwärtig, offen--loopdetection, inputbrown-out, andoutputover/Undervoltage.
9. Soft-startlimitsboostcurrentduringstart-up.A trimmedinternalreferenceprovidesaccurateprotectionthresholdsand ein Regulationsetpunkt.
10. Ein internalclamplimitsthe gatedrivevoltageto 12.5V.