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NCP1937 Combination Power Factor Correction and Quasi- Resonant Flyback Controllers

NCP1937 Description

DATA SHEET www.onsemi.com Combination Power Factor Correction and QuasiResonant Flyback Controllers for Adapters NCP1937 This combination IC integrat.

NCP1937 Features

* necessary for building a robust and compact PFC stage while minimizing the number of external components. The quasi
* resonant current
* mode flyback stage features a proprietary valley
* lockout circuitry, ensuring stable valley switching. This system works down to the 4th valley

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Combination Power Factor Correction and Quasi- Resonant Flyback Controllers ON Semiconductor
ON Semiconductor NCP1937-like datasheet