TPS40210: Survey Power Solution about TPS40210 and LM5022

Wen Yung

Part Number: TPS40210
Other Parts Discussed in Thread: LM5022

Hi Sir,

Currently I plan TPS40210 and LM5022 design isolated power.
But looks feedback method is different between TPS40210 and LM5022.

May I know which one feedback method is good? why?

TPS40210

LM5022

over 8 years ago

0 Vental Mao over 8 years ago

TI__Expert 5745 points

Hi, In my opinion the feedback method of TPS40210 is right. As for the opticalcoupler, it will generate current for the feed back, so we need to translate it to voltage signal with the resistor. Thank you!
Maybe someone else will have other new ideas. Thank you!

0 EricLee over 8 years ago

TI__Guru 59341 points

Hello
Both work. TPS40210's circuit just has one more amplifier stage.
Thanks

0 Wen Yung over 8 years ago in reply to EricLee

Expert 1220 points

Hi Eric,

So mean LM5022 has good bandwidth than TPS40210? since have one more amplifier have one pole, right?

could you help comment which one is good?

Wen

Power management

Power management forum

TPS40210: Survey Power Solution about TPS40210 and LM5022