TPS25944A connection of PGTH pin

Juan Medrano83

Other Parts Discussed in Thread: TPS25944A

Hi TI Team

I am using the TPS25944A in one design, but I am not using the PGTH and PGOOD pin functionality. ln the datasheet it does not state what to do with the PGTH pin if not used. Can you please recommend how should the PGTH pin be connected if not used?

Thanks,

Juan

over 9 years ago

0 Juan Medrano83 over 9 years ago

Intellectual 535 points

Hi,

I would like to also know the recommendation for IMON pin. Since it is a current source, I would say that it should be left floating, and not connected to ground or Vcc to avoid unnecesary current leakage. What do you say?

Thanks,

0 Venkata Nandam over 9 years ago in reply to Juan Medrano83

TI__Intellectual 2800 points

Hi Juan,

Ideally PGTH can be left floating. Since PGTH is high impedance pin, I would recommend connecting this pin to OUT. These two pins are next to each other.

IMON can be left floating without any issue.

Regards,
Venkat

0 Juan Medrano83 over 9 years ago in reply to Venkata Nandam

Intellectual 535 points

Hi Venkat,

Thanks for your reply.

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TPS25944A connection of PGTH pin