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TPS22950-Q1: How to implement power good signal?

Michael

Prodigy 100 points

Part Number: TPS22950-Q1

Tool/software:

Hi all,

is there any way how to implement POWER_GOOD signal with this device? It has ~FAULTY signal, can be reuse for this purpose. The main issue I see is behavior during OFF/ON transition. Is it indicated as faulty if VOUT not yet within VIN range? I have the following connection in mind:

Thanks,

Michael

0 Amrit Jit 9 months ago

TI__Mastermind 30681 points

Hello Michael,

What are you planning to do with the power good signal?

power good signal is used to turn on the downstream load when MOSFET is fully enhanced.

This can't be done with FLT

0 Michael 9 months ago in reply to Amrit Jit

Prodigy 100 points

Hello Amrit,

I want to use the power good signal to unreset the memory chip once the switch is opened.

What is a recommended way to do this operation using this power switch?

BR,

Michael

0 Amrit Jit 9 months ago in reply to Michael

TI__Mastermind 30681 points

Hello Michael,

I don't think FLT pin can't be used as PGOOD.

Can you use load switch with PGOOD indicator?

Thanks

Amrit