Correção de fator de poder UCC28019 da gestão CI do poder SOIC-8 UCC28019ADR
Características:
1. a solução 8-Pin reduz componentes externos
2. InputVoltage largo-RangeUniversalAC
3. Fixed65-kHzOperatingFrequency
4.MaximumDutyCycleof 98% (tipo.)
5.OutputOver/UndervoltageProtection
6.InputBrown-OutProtection
7. Ciclo-por-CyclePeakCurrentLimiting
8. OpenLoopDetection•
9. Low-PowerUser-ControlledStandbyMode2
Aplicações:
1. CCMBoostPowerFactorCorrectionPowerConvertersin escala do quilowatt W a >2 de 100
2. DigitalTV• HomeElectronics
3. WhiteGoodsand IndustrialElectronics
4.Serverand DesktopPowerSupplies
Descrição:
(PFC) boosttopologyoperatingin ContinuousConductionMode do controllerusesthe 1.TheUCC28019A8-pinactivePowerFactorCorrection (CCM).
2. O systemsin do suitablefor dos controlleris o lineinput largo-rangeuniversalac do rangeovera de 100 quilowatts de W to>2.
3. começo upcurrentduringundervoltagelockoutislessthan200μA.
4. pullingthe powerstandbymodeby VSENSEpin below0.77V do controllow de Theusercan.
5. baixo-distortionwaveshapingof os inputcurrentusingaveragecurrentmodecontrolis que achievedwithoutinputlinesensing, externalcomponentcount do reducingthe.
6. Simpleexternalnetworksallowforflexiblecompensationof os currentandvoltagecontrolloops.
7. trimmedto do internallyfixedand de Theswitchingfrequencyis melhor de ±5% accuracyat25°C. Fast1.5-Apeakgatecurrentdrivestheexternalswitch.
8. Numeroussystem-levelprotectionfeaturesincludepeakcurrentlimit, softover-atual, aberto-loopdetection, inputbrown-out, andoutputover/undervoltage.
9. trimmedinternalreferenceprovidesaccurateprotectionthresholdsand de Soft-startlimitsboostcurrentduringstart-up.A um o regulationset-ponto.
10. Um gatedrivevoltageto 12.5V do internalclamplimitsthe.
