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NCP1247

ON Semiconductor
Part Number NCP1247
Manufacturer ON Semiconductor
Description Fixed Frequency Controller
Published Oct 26, 2013
Detailed Description NCP1247 Fixed Frequency Current Mode Controller for Flyback Converters The NCP1247 is a new fixed−frequency current−mo...
Datasheet PDF File NCP1247 PDF File

NCP1247
NCP1247


Overview
NCP1247 Fixed Frequency Current Mode Controller for Flyback Converters The NCP1247 is a new fixed−frequency current−mode controller featuring the Dynamic Self−Supply.
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 start−up, transients, latch, stand−by 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 brown−out detection as well.
It features a timer−based fault detection that ensures the detection of overload and an adjustable compensation to he...



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