• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 577 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.

bq27510 and bq25892 thermistor sharing

Fernando Lopez
Expert 8230 points
Other Parts Discussed in Thread: BQ27510, BQ25892

Hello team,

Can the bq27510 and the bq25892 share the thermistor? The bq25892 would be operating in stand-alone autonomous charging control with default register values. Since it's going to be operating in this mode, can we share the thermistor and use the on-board temperature sensor in the gauge and have the thermistor on the charger? If so, what considerations should be taken? I imagine battery insertion and detection could be affected as well as measuring charger or gauge temperature without interference.

Thanks.

  • 0
    TI__Guru* 76230 points

    Hi Fernando,

    Yes it is possible to share a thermistor. See the snippet below from the TRM.

    If the on board temperature sensor need to be used then you will need to ties Bi/TOUT pin to Vss using a  10k  resistor. See snipet below from the technical reference manual:

    thanks

    Onyx