UCC27524A: ucc28180

Part Number:UCC27524A

Dear jef,

               Already we are developed the TIDA-00779 fixed PFC system and tested 2.5kW Load, In that we replaced the UCC27531 into UCC27524A and PFC ON/OFF 

and Relay ON/OFF control through DSPIC, But Now we are facing problem in  PFC ON/OFF & Relay control operation,  like when I am Switching the PFC through Controller,

it is switching ON PFC up to some Voltage Level  for Example if Set 190V VAC the PFC output is developing up to 330VDC  but at once the PFC voltage starts dropping down to

220VDC(that is rectified AC). Kindly clarify these problem and get into do the better PFC systems.

Thanks & Regards

Ganesamurthy.S