Corrección de factor de poder de los ICs de la gestión del poder SOIC-8 UCC28019 UCC28019ADR
Características:
1. la solución 8-Pin reduce componentes externos
2. InputVoltage ancho-RangeUniversalAC
3. Fixed65-kHzOperatingFrequency
4.MaximumDutyCycleof el 98% (tipo.)
5.OutputOver/UndervoltageProtection
6.InputBrown-OutProtection
7. Ciclo-por-CyclePeakCurrentLimiting
8. OpenLoopDetection•
9. Low-PowerUser-ControlledStandbyMode2
Usos:
1. CCMBoostPowerFactorCorrectionPowerConvertersin gama del kilovatio W a >2 de 100
2. DigitalTV• HomeElectronics
3. WhiteGoodsand IndustrialElectronics
4.Serverand DesktopPowerSupplies
Descripción:
boosttopologyoperatingin ContinuousConductionMode (CCM) del controllerusesthe 1.TheUCC28019A8-pinactivePowerFactorCorrection (PFC).
2. El systemsin del suitablefor de los controlleris el lineinput ancho-rangeuniversalac del rangeovera de 100 kilovatios de W to>2.
3. comienzo upcurrentduringundervoltagelockoutislessthan200μA.
4. pullingthe powerstandbymodeby VSENSEpin below0.77V del controllow de Theusercan.
5. bajo-distortionwaveshapingof los inputcurrentusingaveragecurrentmodecontrolis achievedwithoutinputlinesensing, externalcomponentcount del reducingthe.
6. Simpleexternalnetworksallowforflexiblecompensationof los currentandvoltagecontrolloops.
7. trimmedto del internallyfixedand de Theswitchingfrequencyis mejor el de ±5% accuracyat25°C. Fast1.5-Apeakgatecurrentdrivestheexternalswitch.
8. Numeroussystem-levelprotectionfeaturesincludepeakcurrentlimit, softover-actual, abierto-loopdetection, inputbrown-out, andoutputover/undervoltage.
9. trimmedinternalreferenceprovidesaccurateprotectionthresholdsand de Soft-startlimitsboostcurrentduringstart-up.A al regulationset-punto.
10. Un gatedrivevoltageto 12.5V del internalclamplimitsthe.
