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NCP1207

Part Number	NCP1207
Manufacturer	ON Semiconductor
Description	PWM Current-Mode Controller
Published	Jan 24, 2015
Detailed Description	NCP1207 PWM Current−Mode Controller for Free Running Quasi−Resonant Operation The NCP1207 combines a true current mode ...
Datasheet	NCP1207 PDF File

Overview

NCP1207 PWM Current−Mode Controller for Free Running Quasi−Resonant Operation The NCP1207 combines a true current mode modulator and a demagnetization detector to ensure full borderline/critical Conduction Mode in any load/line conditions and minimum drain voltage switching (Quasi−Resonant operation).
Due to its inherent skip cycle capability, the controller enters burst mode as soon as the power demand falls below a predetermined level.
As this happens at low peak current, no audible noise can be heard.
An internal 8.
0 ms timer prevents the free−run frequency to exceed 100 kHz (therefore below the 150 kHz CISPR−22 EMI starting limit), while the skip adjustment capability lets the user sele...

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