NCP1380 Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies

PublishTime：2021-10-12

●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 the delivered power at high−line. Safety−wise, a fixed internal timer relies on the feedback voltage to detect a fault. Once the timer elapses, the controller stops and stays latched for option A and C or enters auto−recovery mode for option B and D.
●Particularly well suited for adapter applications, the controller 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).

Brand of Product：	ON Semiconductor
Part#：	NCP1380 、 NCP1380A 、 NCP1380B 、 NCP1380C 、 NCP1380D 、 NCP1380ADR2G 、 NCP1380BDR2G 、 NCP1380CDR2G 、 NCP1380DDR2G More Part#
Product Category：	Quasi-Resonant Current-Mode Controller More
Application：	[ High-Power Universal Off-Line Supplies ][ adapter applications ][ High Power ac−dc Converters ][ TVs ][ Set−Top Boxes ][ Offline Adapters ][ Notebooks ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	SOIC−8
Language：	English Chinese Chinese and English Japanese
Date of Creation：	February, 2018
Version Number：	Rev. 6
Data Encoding：	NCP1380/D
Data Size：	413 KB

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