Hi,
I'm looking for a control IC for a PFC circuit for the wide input voltage range (90 ... 265 V) and about 1000 W continuous power und appr. 2000 W during short-time overload for 30 s.
I believe for this application and especially for the power range this PFC system should be controlled in CCM with average current control.
TI offers controller ICs with two types of control principle. There are some ICs like the UC2854A or UC2853A that use a concept with sensing the rectified input voltage and generating a current reference by means of internal multiplier/divider circuits. These ICs seem to represent a standard for a lot of years on the market.
A concept looking quite new comes with the UCC28019A. It works without sensing the input voltage for generating the current reference and looks somewhat simpler to use.
What can be recommended today for a new product? Is the UCC28019A able to give competitive results compared with the other types like UC2854A?
Thank you!
HaJue