UCC256301: 750W PSU reference design

Molly Huang

Prodigy 310 points

Part Number: UCC256301
Other Parts Discussed in Thread: UCC29950,

Hi Sirs,

we have two 450W and 750W PSU project.

And we do reference TIDA-01501 for 450W project.

could this same chips solution apply to 750W?

or I saw UCC29950 can output 750W in E2E.

if we can modify PMP20367 from 300W to 750W? Thanks a lot.

Molly Huang

over 7 years ago

Benjamin Lough over 7 years ago

TI__Mastermind 27105 points

Hi Molly,

Thanks for your interest in UCC256301. 750W is reasonable for a half bridge LLC design. UCC256301 or UCC29950 should be able to satisfy your power requirement. If you use UCC256301, you will likely need a PFC stage in front. UCC29950 is a combo PFC-LLC controller. I would suggest using TIDA-01501 or PMP20367 as a reference and use the deign calculator to determine what will need to be changed.

UCC29950 calculator: www.ti.com/.../toolssoftware
UCC256301 calculator: www.ti.com/.../toolssoftware

Best Regards,
Ben Lough

Power management

Power management forum

UCC256301: 750W PSU reference design