Power Down Sequencing

Hi Khushboo,

You can use below link to search the sequencer for your application. 

http://www.ti.com/sitesearch/docs/universalsearch.tsp?searchTerm=sequencer#q=sequencer&t=everything&linkId=1

Thanks

Qian

Hi

In order to help, we need know how many rails to sequence? other than sequencing, do you need monitoring, margining or other feature?

Thanks

Yihe

Hi Yihe,

We need to sequence total 9 rails.

We don't need margining and monitoring.

Also we have a single 12V supply therefore it will be difficult to do sequencing using a down sequencer like LM3880

wherein we need a separate supply out of the sequencing chain to power on the LM3880.

So request you to suggest some alternatives.

Regards,

Khushboo

Hello

LM3880/1 are the two products which support sequencing only. the rest UCD90xxx product do sequencing, margining, monitoring.

I would recommend UCD9090A to meet your need.

But LM3880 also works. you can cascade 3xLM3880 to achieve the 9 rail sequencing.

Regardless UCD or LM388x, a separate power converted from 12V is need.

 Regards

Yihe

thanks yihe.