UCC28056: VAC question

James Su5

Expert 1340 points

Part Number: UCC28056
Other Parts Discussed in Thread: UCC28180

UCC28056 Can Cover Vin AC 90-264V 50~60Hz and 400Hz application？

Po under 150W,

Vout DC 15V.

over 6 years ago

0 Yunsheng Qu over 6 years ago

TI__Genius 9790 points

Hi, James

UCC28056 can cover Vin AC 90-264V 50~60Hz application, but it is not sure for 400Hz application. Will update you after further development.

regards,
Yunsheng

0 PYTsai over 6 years ago in reply to Yunsheng Qu

TI__Genius 9315 points

Hi Yunsheng,

May I know when can the team come out the answer for 400Hz input support? If UCC28056 not works any alternative solution?

We need to final the solution recently.

Thanks!

PY Tsai

0 Yunsheng Qu over 6 years ago in reply to PYTsai

TI__Genius 9790 points

Hi, PY

UCC28056 does not fit for 400Hz because of internal circuit limitation.

what is the power level you want to design? UCC28180 can support 400Hz input voltage, also can support 50/60Hz input.

Regards,

Yunsheng

0 James Su5 over 6 years ago in reply to Yunsheng Qu

Expert 1340 points

Hi Yunsheng,

150W AC 90-264V 400Hz to DC 15V application.

James

0 James Su5 over 6 years ago in reply to Yunsheng Qu

Expert 1340 points

Hi Yunsheng,

New question,
In 400Hz VAC , Power Factor can keep > 0.90 ?

B/R
James

0 John Griffin1 over 6 years ago in reply to James Su5

TI__Mastermind 34465 points

Hello James,

I am attaching test data that was taken on the UCC28180 EVM.

There is three pages to the document

Page 1 is the data at 50Hz and 60Hz

Page 2 is the data at 360Hz

Page 3 is the data at 800Hz

If you hover the pointer over the line current column you can see what the scope waveform looks like.

In most cases the power factor is greater than 0.9

Regards

John

TEST_DATA.xlsx

Power management

Power management forum

UCC28056: VAC question