• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 64 subscribers
  • Views 550 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS543C20: About pin processing when using 2 phase

Yuto Sakai
Mastermind 6100 points
Part Number: TPS543C20

Hi,

Please tell me about the processing of the following pins when using with 2 phase.

· VHARE, ISHARE, SYNC
Is there a problem with connecting directly?

· SS, VSEL, RSP, RSN, RT (SLAVE side)
Is the connection of these pins on the slave side floating?

· RAMP, MODE, ILIM
Is the resistance value connected to the slave side the same value as Master, is it necessary to connect each?

· PGD (SLAVE side)
Is it possible to output both power good on the slave side with the same resistance value as the Master side and the same connection?

· EN (SLAVE side)
Can I make the same connection as the Master side? Is there a need for connection?

Best Regards,
Yuto Sakai

  • 0
    TI__Guru**** 191445 points
    Sakai-san,

    I have requested support for your question. You should get a reply within today.
  • 0
    TI__Intellectual 2460 points
    Hello Sakai,
    Are you working with Ti local FAE Goya-san? I responded to Goya-san on those questions.
    VHARE, ISHARE, SYNC
    Is there a problem with connecting directly?
    Kit: Yes.

    · SS, VSEL, RSP, RSN, RT (SLAVE side)
    Is the connection of these pins on the slave side floating?
    Kit: Yes.

    · RAMP, MODE, ILIM
    Is the resistance value connected to the slave side the same value as Master, is it necessary to connect each?
    Kit: Yes.
    · PGD (SLAVE side)
    Is it possible to output both power good on the slave side with the same resistance value as the Master side and the same connection?
    Kit: No, just need connect PG of Master since the master regulates the output and uses for OVP/UV features.
    · EN (SLAVE side)
    Can I make the same connection as the Master side? Is there a need for connection?
    Kit: yes, EN requires on both master and slave.
    Thanks.
    Kit