TPS54618: PGOOD output Timing

Daniel Minors85

Part Number: TPS54618

Hi,

Could you please help me with some additional information for the TPS54618 part

I have looked through previous forum responses and a time of 150us for overvoltage/undervoltage detection triggering the PGOOD output has been stated. Could you please confirm that figure?

Could you provide anymore detail,

What duration of undervoltage/overvoltage condition is required to trigger the PGOOD output?

Is there a minimum duration of PGOOD outputs?

PGOOD can also by triggered by Thermal Shutdown, overcurrent or EN shutdown. Are there different response timings for these triggers?

Many thanks,

Dan

11 months ago

0 Sneha 11 months ago

TI__Expert 8756 points

Hi Dan,

I will look into this and get back to you.

Could you please point out to the previous forum response you refer here?

Best regards

Sneha

0 Daniel Minors85 11 months ago in reply to Sneha

Prodigy 140 points

e2e.ti.com/.../tps54618-power-supply-ic-queries

0 Sneha 11 months ago in reply to Daniel Minors85

TI__Expert 8756 points

Hi Daniel,

I will check these data internally and get back to you by mid of next week.

Thanks!

Best regards

Sneha

0 Daniel Minors85 11 months ago in reply to Sneha

Prodigy 140 points

Hi Sneha,

I have taken some measurements in the lab and believe it the PGOOD is responding to an undervoltage condition in around 5-6us in my implementation with this device.

Dan

0 Sneha 11 months ago in reply to Daniel Minors85

TI__Expert 8756 points

Hi Dan,

Could you share the results?
did you also check in overvoltage condition?

Best regards

Sneha

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TPS54618: PGOOD output Timing