• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 418 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.

BQ25790: BQ25790 technical advice

Jack Su1
Intellectual 300 points
Part Number: BQ25790

When charging IC does PD processing, it needs to use d +, D - signals. My system also uses these two signals to connect to the computer and download software. If I directly connect the two signals of CPU and charging IC together, will there be conflict. What do I do with the hardware

  • 0
    TI__Guru**** 166876 points

    Hi Jack,

    With Auto detect enabled, the D+/D- lines only communicate for the first 2s after power up.  They are high Z after that unless the host sends a force detect I2C command. On previous chargers, customers have directly connected other components to the D+/D- bus, without issues, or used a USB switch like TS3USB221ARSER to switch out the charger D+/D- lines.

    Regards,

    Jeff