TPS259827LEVM: About PG pin voltage.

teritama

Expert 1810 points

Part Number: TPS259827LEVM

Hi team,

In this EVM, PG pin is pulled up to 3.3V when J7 is connected 2-3.

But in User's Guide figure3 seems Vpg is around 2V in asserted. Why this voltage drop happen?

teritama

over 1 year ago

0 Arush Gupta over 1 year ago

TI__Mastermind 24385 points

Hi Teritama,

I will look into this and will inform you by Monday EOD. Just confirming once, did you do any experiments and got 3.3V at PG pin or are you asking based on schematics.

Best regards,

Arush

0 teritama over 1 year ago in reply to Arush Gupta

Expert 1810 points

Hi Arush,

Thank you for reply. I'm looking forward your inform.

>did you do any experiments and got 3.3V at PG pin or are you asking based on schematics.

⇒I asked based on schematics.

Best regards,

teritama

+1 Arush Gupta over 1 year ago in reply to teritama

TI__Mastermind 24385 points

Hi teritama,

I verified this in lab and found that PG is going to 3.3V as expected from the schematics. If you want other voltage levels, then you can connect J7 to 1-2 position and use external voltage supply. The evm user guide figure 3 must have been captured with external voltage of 2V at TP4 pin.

Thank you and Best Regards,

Arush

0 teritama over 1 year ago in reply to Arush Gupta

Expert 1810 points

Hi Arush,

I understood. Thank you so much.

I mistaken that J7 was set 2-3 follow Table6.

Best regards,

teritama

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TPS259827LEVM: About PG pin voltage.