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NCP1246

Part Number	NCP1246
Manufacturer	ON Semiconductor
Description	Fixed Frequency Controller
Published	Oct 26, 2013
Detailed Description	NCP1246 Product Preview Fixed Frequency Current Mode Controller for Flyback Converters The NCP1246 is a new fixedïfreque...
Datasheet	NCP1246 PDF File

Overview

NCP1246 Product Preview Fixed Frequency Current Mode Controller for Flyback Converters The NCP1246 is a new fixedïfrequency currentïmode controller featuring the Dynamic SelfïSupply.
This function greatly simplifies the design of the auxiliary supply and the VCC capacitor by activating the internal startup current source to supply the controller during startïup, transients, latch, standïby etc.
This device contains a special HV detector which detect the application unplug from the AC input line and triggers the X2 discharge current.
This HV structure allows the brownïout detection as well.
It features a timerïbased fault detection that ensures the detection of overload and an adjustable comp...

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