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NCP1249D

Part Number	NCP1249D
Manufacturer	ON Semiconductor
Description	High-Voltage Current-Mode PWM Controller
Published	Jan 24, 2016
Detailed Description	NCP1249C, NCP1249D High-Voltage CurrentMode PWM Controller Featuring Peak Power Excursion and Self-Relaxing Off Mod...
Datasheet	NCP1249D PDF File

Overview

NCP1249C, NCP1249D High-Voltage CurrentMode PWM Controller Featuring Peak Power Excursion and Self-Relaxing Off Mode The NCP1249 is a highly integrated high−voltage PWM controller http://onsemi.
com capable of delivering a rugged and high performance offline power supply with extremely low no−load consumption.
With a supply range MARKING DIAGRAM up to 30 V, the controller hosts a jittered 65 kHz switching circuitry operated in peak current mode control.
When the power on the secondary side starts to decrease, the controller automatically folds back its switching frequency down to a minimum level of 26 kHz.
As the power further goes down, the part enters skip cycle while freezing the...

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