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NCP1342 - Quasi-Resonant Flyback Controller

Datasheet Summary

Description

Default Configuration A X2 Discharge Disabled, VBO(stop) = 84 V, VBO(start) = 94 V D X2 Discharge Disabled, VBO(stop) = 84 V, VBO(start) = 94 V, Resettable Overload Timer E X2 Discharge Disabled, Brownout Disabled F X2 Discharge Disabled, VCC(off) Triggers Autorecovery Timer (tre

Features

  • a proprietary valley.
  • lockout circuitry, ensuring stable valley switching. This system works down to the 6th valley and transitions to frequency foldback mode to reduce switching losses. As the load decreases further, the NCP1342 enters quiet.
  • skip mode to manage the power delivery while minimizing acoustic noise. To ensure light load performance with high frequency designs, the NCP1342 incorporates Rapid Frequency Foldback with Minimum Peak Current Modulation to reduce the switchi.

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Datasheet preview – NCP1342

Datasheet Details

Part number NCP1342
Manufacturer ON Semiconductor
File Size 956.62 KB
Description Quasi-Resonant Flyback Controller
Datasheet download datasheet NCP1342 Datasheet
Additional preview pages of the NCP1342 datasheet.

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Full PDF Text Transcription

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DATA SHEET www.onsemi.com Quasi-Resonant Flyback Controller, High Frequency NCP1342 The NCP1342 is a highly integrated quasi−resonant flyback controller suitable for designing high−performance off−line power converters. With an integrated active X2 capacitor discharge feature, the NCP1342 can enable no−load power consumption below 30 mW. The NCP1342 features a proprietary valley−lockout circuitry, ensuring stable valley switching. This system works down to the 6th valley and transitions to frequency foldback mode to reduce switching losses. As the load decreases further, the NCP1342 enters quiet−skip mode to manage the power delivery while minimizing acoustic noise.
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