NCP1623 controller equivalent, high-efficiency power factor controller.
* 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
.
* USB−PD
* Flat TV
* Industrial Power Supplies
* All Off−line Appliances Requiring Power Factor Correcti.
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 connecte.
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