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TPS65982: TPS65982 Current mode question

kerr chang
Genius 4075 points
Part Number: TPS65982
Other Parts Discussed in Thread: TPS65988

Hi Team

             Type C Current mode have 900mA / 1.5A / 3.0A 4 modes. We want change mode on system on S0 . We will use I2C to change 0x29.

Havy any concern on this change? If Type C connect have device on TPS65982, Did we need cheage 0x29 and send 4CC command HRST for restert Type C device?  

  • 0
    TI__Mastermind 36751 points

    Hi Kerr,

    You do not need to send HRST after changing the device Type-C Current. It would automatically disconnect and reconnect after that register is changed.

    If this answers your question, PLEASE select This resolved my issue

    Thank you,
    Eric

  • 0 in reply to Eric Beljaars
    Genius 4075 points
    Hi Eric
    Thank you!! anthoer question.
    1 : Is TPS65988 have same automatically disconnect and reconnect after that register changed ?
    2 : Is Vbus will be disable and enable again?
    Customer have other project will use 988.
  • 0 in reply to kerr chang
    TI__Mastermind 36751 points

    Hi Kerr,

    No, since the TypeC current field is in register 0x29, the PD controller would not disconnect and reconnect automatically. The changes in this register would take effect next time a connection is made. 

    If this answers your question, PLEASE select This resolved my issue

    Thank you,
    Eric