UCC256304: Suitable substitute for UCC25630DDB

Ryan Primmett

Other Parts Discussed in Thread: TIDA-01494, UCC25640

Hi there, I have been following along with the TIDA-01494 Reference Design and have been able to identify all parts or suitable replacements except for U2, UCC25630DDB. I see similar parts as listed below but am not sure if these are suitable replacements. In addition I'm not sure their differences

Thanks in advance

Ryan

3 months ago

0 Ning Tan 3 months ago

TI__Intellectual 2715 points

Ryan,

UCC25630x family is not recommend for new designs.

You can find the difference between each variant below:

https://www.ti.com/lit/sg/slyt728/slyt728.pdf

Please refer to this migration guide for newer parts

https://www.ti.com/lit/an/slua966a/slua966a.pdf

Thanks,

Ning

0 JCHK 3 months ago

TI__Mastermind 44360 points

HI Ryan,

The UCC25640 is a pin to pin drop in. You will have to modify the bill of materials as explained here.

Note, while not pin-to-pin we have a newer controller that is even easier to design with and can resonate at much higher frequencies. The UCC25660 series can enable a higher power density design. We are making new reference designs based on the new controller.

I hope this answers your question.

Power management

Power management forum

UCC256304: Suitable substitute for UCC25630DDB