NCP1623 Datasheet (ON Semiconductor) - High-Efficiency Power Factor Controller

NCP1623, High-Efficiency Power Factor Controller

Pin Number Pin Number TSOP *6 SOIC *8 1 8 Pin Name VCTRL 2 4 GND 3 6 CS/ZCD 4 3 DRV Description The error amplifier output is connected to this pin.

The regulation loop bandwidth is adjusted by the feedback compensation network connected between this pin and ground.

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NCP1623 Features

* Valley Synchronized Frequency Fold

* back (VSFF):

* CrM at Heavy Load

* DCM at Light Load by Dead Time Control

* Valley Switching in Both CrM and DCM

* On

* time Modulation for High PFC in Both CrM and DCM

* Follower Boost Capability (NCP