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.

BQ24780S: ACOK, ProcHot, ILIM, SDA ans SCL line energized / biased without VCC connection to IC

Part Number: BQ24780S

Hi,

We have pulled up

  • ACOK and Prochot to 3.3V thru 10kOhms
  • SCL and SDA lines to 3.3V thru 4.7kOhms
  • ILIM voltage set by a voltage divider from 3.3V.

We have different power source other than battery pack and adapter. This will generate 3.3V for the system.

Concern: Above mentioned lines will have 3.3V connected to them when BQ24780S IC is not connected to any power source (VCC=0V). Is there any risk in this condition ?

Thanks,

Chandan N