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TPS24720: MOSFET selection

William Sung36
Intellectual 395 points
Part Number: TPS24720
Other Parts Discussed in Thread: TPS24772, , CSD16415Q5

Hi,

I'm looking to use the TPS24720 in for a 12V hot swap circuit that i want to current limit at 20A. I know the demo board for this part uses 2x CSD16401Q5A FETs to provide a 12V, 25A circuit. My questions is if i can use a single CSD16415Q5 FET for my 12V, 20A design with a load capacitance of 1800uF. I looked at the demo board for the TPS24772 design which is a 100A circuit and it uses 4 of the CSD16415Q5 FET, so i think a single one of these FETs should be able to handle 20A that is in my design. I also downloaded the TPS24720 design calculator spreadsheet and ran the numbers for the CSD16415Q5 FET with my design parameters of 12V, 20A, 1800uF and it looks ok. I just want to be sure that i will not operate the CSD16415Q5 FET outside it's SOA and thus breaking it.

Thanks