• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 254 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.

Bq20z95 datasheet error?

allen kitchen
Intellectual 320 points

Page 2 of the PDF file shows GSRP and ASRP on the ground side of the sensing resistor, where page 15 shows it on the battery side of the sense resistor.  Logically page 15 would be right.  But can someone a) confirm that ASRP and GSRP are on the battery side of the sense resistor, and b) explain why there are filter RC components on GSRP and GSRN but not ASRP and N.

Thank you very much.

Allen

  • 0
    TI__Guru* 76230 points

    The schematic on page 15 is the correct one. GSRP and GSRN are the input to the coulomb counter hence need the filter circuitry. ASRP and N are the inputs to the AFE for short circuit and overload detection. Such signals are not influenced much by noise because of their magnitude and as such don't require a filter circuitry.

    thanks

    Onyx