Hi all
I got a case recently, its requirements are as below:
Input voltage:60VDC-160VDC.
Output Voltage:24VDC
Output Current:5A
Efficiency:89%(typical)
I want to use UCC2897A as the main controller and adopt synchronization rectification in secondary side. My question is:
1) As the output voltage is as high as 24V, is it more efficent with synchronizaion rectificaiton?
2) As UCC2897A is designded for 36V-75V input voltage application area, is it suitable to use at so high voltage range,60V-160V?
3) The Vin pin of the UCC2897A can only stands for 120V, recommended voltage is 110V, how can I deal with the start up circuit for the bias voltage for this IC?
I would like to hear the comments from you all!
Thanks in advance!