• Resolved

UCC3808-1: Soft start for UCC3808

Part Number: UCC3808-1



I need to implement a soft start on your UCC3808. I would like to have the possibility to set the soft start time (3.5 ms of the internal soft start are not enough)


As usual I added a capacitor to slow the voltage increase on “COMP”. This is allowed on the UCC38C44.


I imagine that it is also allowed for the UCC3808 and it seems to work properly (I tested it, the soft start time can be easily varied changing the value of C64)


Can you confirm us that this is not an improper use of the IC? In other words the IC should no be damaged if the COMP pin is connected to a large capacitor (about 10 uF)?



Thank you and best regards!