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UCC28070 Interleaving Continuous Conduction Mode PFC ...

+ VINVOUT12V to 21VM2 RBRARBM1L2D2D1 COUTRACPCCPCCZCCZCRZCRZCCSSRRDMRRTT1T2 CCDRRDMXRSYNCREFRPK1 RPK2 CZVRZVCPVRSRS123456789102019181716151413 1211 CAOACAOBPKLMTGNDVAOVINACVSENSECSACSBRTCD RSSGDBGDAIMOVCCRSYNTHVREFDMAXRDMRIMOTo CSBTo CSAFrom IxfrmsL1 Copyright 2016, Texas Instruments IncorporatedProductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityReferenceDesignAn IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand NOVEMBER2007 REVISEDAPRIL2016 UCC28070 InterleavingContinuousConductionMode PFC Controller11 Features1 InterleavedAverageCurrent-ModePWMC ontrolWithInherentCurrentMatching AdvancedCurrentSynthesizerCurrentSensing for SuperiorEfficiency Highly-LinearMultiplierOutputWithInterna lQuantizedVoltageFeed-ForwardCorrectionf orNear-UnityPF ProgrammableFrequencyfrom30 kHz to 300 kHz ProgrammableMaximumDuty-CycleClamp ProgrammableFrequency-DitheringRateandMa gnitudefor EnhancedEMI Reduction Magnitude:3 kHz to 30 kHz Rate:Up to 30 kHz External-ClockSynchronizationCapability EnhancedLoadand Line TransientRespo

• External PFC-Disable Interface • Open-Circuit Protection on VSENSE and VINAC pins • Programmable Soft-Start 2 Applications • High-Efficiency Server and Desktop Power Supplies • Telecom Rectifiers • White Goods and Industrial Equipment 3 Description The UCC28070 is an advanced power factor correction (PFC) device that integrates ...

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  Power, Factors, Correction, Power factor correction

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