• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 62 subscribers
  • Views 522 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.

BQ25895: Thermistor calculation

Michael Gaechter
Prodigy 120 points
Part Number: BQ25895


What are the values used in the equation on page 23 of the datasheet: Vregn = ? / VT1 = ? / VT5 = ?

  • 0
    TI__Guru**** 169736 points
    Hi Michael,

    I apologize for the confusion. VREGN is the regulated voltage from the REGN pin. It eventually cancels out in the equations so you can use 6V or any voltage. VT1 = VLTF and VT5=VTCO, which are percentages of REGN. All of these are in the datasheet electrical spec table pages 9 and 10. The design spreadsheet from the tools folder below should help:.

    www.ti.com/.../slurax7

    The spreadsheet (unfortunately) refers to VREGN and VVREF.

    Regards,
    Jeff