WEBENCH® Tools/TPS54394: About TJ data in dual out put condition

Tsukui Yusuke

Guru 21930 points

Part Number: TPS54394

Tool/software: WEBENCH® Design Tools

Hi,

Let me talk about the　webench simulation result.
Customer simulated TPS54394.
However, it is uneasy whether customer can confirm Tj for 2ch.
Please tell me how to check TJ considering 2 channels

Best Regards,
Yusuke/Japan Disty

over 7 years ago

0 Neal Zhang over 7 years ago

TI__Expert 4720 points

Hi Yusuke,

Both channel will have power loss and make the IC hot, do you mean you want to check the temperature rise due to a specific channel?

0 Tsukui Yusuke over 7 years ago in reply to Neal Zhang

Guru 21930 points

Zhang-san,

Thank you for your response.
I would like to know the result of combining the two losses.
However, the report outputs ch1 ch2 separately.
I will attach a report.

TPS54394 Vin8V Vout11.8V1.7A Vout21.2V1.7A ta70deg copy.pdf

Best Regards,
Yusuke/Japan Disty

0 Neal Zhang over 7 years ago in reply to Tsukui Yusuke

TI__Expert 4720 points

Yusuke san,

Sorry I don't quite understand. Do you mean this value?

Power management

Power management forum

WEBENCH® Tools/TPS54394: About TJ data in dual out put condition