• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 63 subscribers
  • Views 377 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.

bq24266 / Drive IUSBx pins from only DRV output

S.Satoshi
Guru 21685 points
Other Parts Discussed in Thread: BQ24266

Hi All,

Now our customer has evaluated bq24266 with no host controller, so they plan to drive IUSBx pins from only DRV output. Then can we remove ORing diode from BAT though EVM has it? I believe it can be removed because it will be the same situation with charging deep discharged battery with ORing from DRV and BAT.

Your comment will be appreciated.

Best Regards,

Sonoki / Japan Disty

  • 0
    TI__Guru**** 166916 points
    Yes. The IUSBx pins can be driven only by DRV. With no input supply and battery only, the IC will default to HiZ mode regardless of the IUSBx status (except for boost mode). The reason for the ORing diode with BAT was to the EVM to easily be configured into to boost mode using IUSBx pins.
  • 0 in reply to Jeff F
    Guru 21685 points

    Hi Jeff-san,

    Thank you for your response. I clearly understand that the bias for IUSBx pin with no input supply is needed at only boost mode.

    Best Regards,

    Sonoki