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NCP1612A

ON Semiconductor
Part Number NCP1612A
Manufacturer ON Semiconductor
Description High-Efficiency Power Factor Controller
Published Jul 1, 2016
Detailed Description NCP1612A, NCP1612B, NCP1612A1, NCP1612A2, NCP1612A3, NCP1612B2 Enhanced, High‐Efficiency Power Factor Controller The N...
Datasheet PDF File NCP1612A PDF File

NCP1612A
NCP1612A

Overview
NCP1612A, NCP1612B, NCP1612A1, NCP1612A2, NCP1612A3, NCP1612B2 Enhanced, High‐Efficiency Power Factor Controller The NCP1612 is designed to drive PFC boost stages based on an innovative Current Controlled Frequency Fold-back (CCFF) method.
In this mode, the circuit classically operates in Critical conduction Mode (CrM) when the inductor current exceeds a programmable value.
When the current is below this preset level, the NCP1612 linearly decays the frequency down to about 20 kHz when the current is null.
CCFF maximizes the efficiency at both nominal and light load.
In particular, the stand-by losses are reduced to a minimum.
Like in FCCrM controllers, an internal circuitry allows near-uni...


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