ucc28220: ucc28220外围电路问题 ucc28220外围电路问题 Ucc28220 peripheral circuit problems

Charles.huang

Part Number: UCC28220

Hello, there is a problem with the SLUA312, see page 11

I use the red label is not the 2 should not appear in there, because this is a reflection of current single channel, the frequency should not be multiplied by 2?

over 8 years ago

0 Yunsheng Qu over 8 years ago

TI__Genius 9790 points

Thanks for your interest in TI here. I've contacted the appropriate product group. You should hear from them soon.

0 Oliver Pan91 over 8 years ago

TI__Intellectual 2230 points

Hello Charles,

The latter term in the brackets represents 1/2 ripple current of the output inductor, plus the front term we can get the secondary peak current, that's why we x 2 in the denominator of the latter term.

Best Regards
Oliver

Power management

Power management forum

ucc28220: ucc28220外围电路问题 ucc28220外围电路问题 Ucc28220 peripheral circuit problems