TPS54327: soft start

Hirotaka Matsumoto

Part Number: TPS54327

Hi all

Would you mind if we ask TPS54327?

Is it possible to set soft start time over 8ms?
(Does upto 8ms mean avilable linear setting area?)
Because, we could not configure over 8ms on the Webench simulation.
Our customer would like to set soft start time over 50ms.

Kind regards,

Hirotaka Matsumoto

over 7 years ago

0 Hirotaka Matsumoto over 7 years ago

Guru 27525 points

Hi team

We recognize that your team is so busy, however could you give us the reply?

Kind regards,

Hirotaka Matsumoto

0 Richard Tan over 7 years ago in reply to Hirotaka Matsumoto

TI__Prodigy 110 points

Matsumoto-san,

too much SS cap might have concern of not being able to fully discharge before the first ON pulse comes, which might cause too much in-rush current.

but theoretically it might work. please double check the inductor current in your design during power up short after you power down the system.. thanks

Richard

Power management

Power management forum

TPS54327: soft start