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SOIC-8力管理IC力率訂正UCC28019 UCC28019ADR
特徴:
1. 8 Pin解決は外的な部品を減らす
2.広いRangeUniversalAC InputVoltage
3. Fixed65-kHzOperatingFrequency
4.MaximumDutyCycleof 98% (タイプ。)
5.OutputOver/UndervoltageProtection
6.InputBrown-OutProtection
7.周期によってCyclePeakCurrentLimiting
8. OpenLoopDetection•
9.低PowerUser ControlledStandbyMode2
適用:
1. CCMBoostPowerFactorCorrectionPowerConvertersin 100 Wから>2
kWの範囲
2. DigitalTV•HomeElectronics
3. WhiteGoodsand IndustrialElectronics
4.Serverand DesktopPowerSupplies
記述:
1.TheUCC28019A8-pinactivePowerFactorCorrection (PFC)
controllerusestheのboosttopologyoperatingin ContinuousConductionMode
(CCM)。
2。controllerisのsuitableforのsystemsin 100つのW to>2
kWのrangeoveraの広いrangeuniversalac lineinput。
3.開始upcurrentduringundervoltagelockoutislessthan200μA。
4. Theusercanのcontrollowのpowerstandbymodeby pullingthe VSENSEpin
below0.77V。
5.低distortionwaveshapingof achievedwithoutinputlinesensing
inputcurrentusingaveragecurrentmodecontrolis
reducingtheのexternalcomponentcount。
6. Simpleexternalnetworksallowforflexiblecompensationof
currentandvoltagecontrolloops。
7. Theswitchingfrequencyisのinternallyfixedandのtrimmedto
betterthan±5% accuracyat25°C.
Fast1.5-Apeakgatecurrentdrivestheexternalswitch。
8.
softover現在、inputbrown-outオープンloopdetection、Numeroussystem-levelprotectionfeaturesincludepeakcurrentlimitのandoutputover/不足電圧。
9.ソフトstartlimitsboostcurrentduringstart up.A
trimmedinternalreferenceprovidesaccurateprotectionthresholdsand
regulationset点。
10。internalclamplimitstheのgatedrivevoltageto 12.5V。