Transcription of NCP1622 - Enhanced, High-Efficiency Power Factor Controller
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NCP1622 - Enhanced, High-Efficiency Power Factor Controller
DATA Semiconductor Components Industries, LLC, 2017 August, 2021 Rev. 51 Publication Order Number: NCP1622 /DEnhanced, High-EfficiencyPower Factor ControllerNCP1622 The 6 pin PFC Controller NCP1622 is designed to drive PFC booststages. It is based on an innovative Valley Synchronized FrequencyFold back (VSFF) method. In this mode, the circuit classicallyoperates in Critical conduction Mode (CrM) when Vcontrol voltageexceeds a programmable value Vctrl,FF. When Vcontrol is below thispreset level Vctrl,FF, the NCP1622 (versions [B**] and [D**]) linearlydecays the frequency down to about 30 kHz until Vcontrol reaches theSKIP mode threshold.
Power Factor Controller NCP1622 The 6−pin PFC controller NCP1622 is designed to drive PFC boost stages. It is based on an innovative Valley Synchronized Frequency Fold−back (VSFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when Vcontrol voltage exceeds a programmable value Vctrl,FF.
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