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