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NCP1927

ON Semiconductor
Part Number NCP1927
Manufacturer ON Semiconductor
Description Combination Power Factor Correction Controller and Flyback Controller
Published Nov 17, 2013
Detailed Description NCP1927 Combination Power Factor Correction Controller and Flyback Controller for Flat Panel TVs This combination IC int...
Datasheet PDF File NCP1927 PDF File

NCP1927
NCP1927


Overview
NCP1927 Combination Power Factor Correction Controller and Flyback Controller for Flat Panel TVs This combination IC integrates the primary side control blocks − power factor correction (PFC) and flyback controllers with sequencing circuitry − necessary to implement a compact highly efficient Flat Panel TV Switched Mode Power Supply.
The PFC controller exhibits near−unity power factor while operating in Critical Conduction Mode (CrM) with an internal frequency clamp.
The circuit incorporates all the features necessary for building a robust and compact PFC stage while minimizing the number of external components.
The fixed−frequency current−mode flyback controller features a proprietary Soft−...



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