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NCP1631 - 2-Phase Power Factor Controller

Datasheet Summary

Features

  • necessary for building robust and compact interleaved PFC stages, with a minimum of external components. General Features.
  • Near.
  • Unity Power Factor.
  • Substantial 180 Phase Shift in All Conditions Including Transient Phases.
  • Frequency Clamped Critical Conduction Mode (FCCrM) i. e. , Fixed Frequency, Discontinuous Conduction Mode Operation with Critical Conduction Achievable in Most Stressful Conditions.
  • FCCrM Operation Optimizes the PFC Stage Efficiency Over the Load Rang.

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Datasheet preview – NCP1631

Datasheet Details

Part number NCP1631
Manufacturer ON Semiconductor
File Size 691.29 KB
Description 2-Phase Power Factor Controller
Datasheet download datasheet NCP1631 Datasheet
Additional preview pages of the NCP1631 datasheet.

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Full PDF Text Transcription

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DATA SHEET www.onsemi.com Interleaved, 2-Phase Power Factor Controller NCP1631 The NCP1631 integrates a dual MOSFET driver for interleaved PFC applications. Interleaving consists of paralleling two small stages in lieu of a bigger one, more difficult to design. This approach has several merits like the ease of implementation, the use of smaller components or a better distribution of the heating. Also, Interleaving extends the power range of Critical Conduction Mode that is an efficient and cost−effective technique (no need for low trr diodes). In addition, the NCP1631 drivers are 180 phase shift for a significantly reduced current ripple.
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