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NCP1380 - Quasi-Resonant Current Mode Controller

General Description

Pin N5 Pin Name 1 ZCD Function Zero Crossing Detection Adjust the over power protection 2 FB Feedback pin 3 CS Current sense 4 GND 5 DRV Driver output 6 VCC Supplies the controller 7 Fault Over voltage and Over temperature protection (A and B versions) Over

Key Features

  • a pin to implement either a combined overvoltage / overtemperature protection (Version A and B) or a combined brown.
  • out/overvoltage protection (Version C and D). Features.
  • Quasi.
  • Resonant Peak Current.
  • Mode Control Operation.
  • Valley Switching Operation with Valley.
  • Lockout for Noise.
  • Immune Operation.
  • Frequency Foldback at Light Load to Improve the Light Load Efficiency.
  • Adjustable Over Power Protection.
  • Auto.

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Datasheet Details

Part number NCP1380
Manufacturer onsemi
File Size 478.21 KB
Description Quasi-Resonant Current Mode Controller
Datasheet download datasheet NCP1380 Datasheet

Full PDF Text Transcription for NCP1380 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for NCP1380. For precise diagrams, and layout, please refer to the original PDF.

DATA SHEET www.onsemi.com Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies NCP1380 The NCP1380 hosts a high−performance circuitry aimed t...

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upplies NCP1380 The NCP1380 hosts a high−performance circuitry aimed to powering quasi−resonant converters. Capitalizing on a proprietary valley−lockout system, the controller shifts gears and reduces the switching frequency as the power loading becomes lighter. This results in a stable operation despite switching events always occurring in the drain−source valley. This system works down to the 4th valley and toggles to a variable frequency mode beyond, ensuring an excellent standby power performance. To improve the safety in overload situations, the controller includes an Over Power Protection (OPP) circuit which clamps t

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