TPS653852A-Q1: Consultation on Vsout output capacitor exceeding limit

Vayne Li

Part Number: TPS653852A-Q1

Tool/software:

Hi Teams,

May I ask the maximum output capacity of the VSOUT1/2 module tps653852? The customer's design has exceeded the limit. If they want to confirm that this module works properly, what areas do they need to test? Do you have any good suggestions? Thank you

3 days ago

0 Michael Hernandez 2 days ago

TI__Expert 5120 points

Hi Vayne,

As this is an NDA part I can't really say too much on the public forums. The main issue I see when customer exceed the max capacitor limit has to do with the ramp time slowing. Make sure the system timings are not such that an undervoltage flag is set due to the ramp times being slower than expected.

Best,

Michael Hernandez

0 Vayne Li 2 days ago in reply to Michael Hernandez

Expert 1030 points

Hi Michael,

Thank you for your reply

What is the diagnostic time for undervoltage? The customer wants to test it and needs a diagnostic time limit.

Thank you!

0 Michael Hernandez 1 day ago in reply to Vayne Li

TI__Expert 5120 points

Hi Vayne,

The time you should be concerned about should be the deglitch time for the rail described in the datasheet.

Best,

Michael Hernandez

Power management

Power management forum

TPS653852A-Q1: Consultation on Vsout output capacitor exceeding limit