TPS2544: About the timing spec between EN and CTL

user4487274

Prodigy 130 points

Part Number: TPS2544

Hello,

We are planning to controll EN and CTL by EC.

Are there any timing spec about the controll between EN and CTL?

Thank you.

Katsuhiro

over 4 years ago

0 Ziv Zhang over 4 years ago

TI__Mastermind 18031 points

Hi Katsuhiro-san,

EN on will power all the block.

You can first setting CTRL and then EN.

For TI's policy, I will first click resolved button.

If you have any other concern, contact me any time.

If you think resolved, please help click 'Issue is solved button'.

Thanks.

0 user4487274 over 4 years ago in reply to Ziv Zhang

Prodigy 130 points

Hi Ziv-san,

Thank you for your reply.

How is the minimum delay time specification from CTL setting to EN on?

Regards,

Katsuhiro

0 Ziv Zhang over 4 years ago in reply to user4487274

TI__Mastermind 18031 points

Hi Katsuhiro-san,

I also don't know this spec.

I think it doesn't influence the results with different power setting sequence.

For TI's policy, I will first click resolved button.

If you have any other concern, contact me any time.

If you think resolved, please help click 'Issue is solved button'.

Thanks.

Ziv

0 user4487274 over 4 years ago in reply to Ziv Zhang

Prodigy 130 points

Hi Ziv-san,

You mentioned as follows previously.

>You can first setting CTRL and then EN.

Does it mean that the above procedure is not required, just recommendation?

Thank you.

Katsuhiro

0 Ziv Zhang over 4 years ago in reply to user4487274

TI__Mastermind 18031 points

Hi Katsuhiro,

It's the recommendation.

CTRL is the input pin and must have a definite voltage level before powered on.

So it's suggested to set CTRL pin first then enable.

For TI's policy, I will first click resolved button.

If you have any other concern, contact me any time.

If you think resolved, please help click 'Issue is solved button'.

Thanks.

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TPS2544: About the timing spec between EN and CTL