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。