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BQ24072T: Calculated Component Values for TS Function

Jerry%20Leung
Intellectual 905 points
Part Number: BQ24072T

Hi Team,

I want to verify for our customer on a couple of the calculated components explained in the datasheet. It seems the calculated values for R6 and R7 under the typical application section of the datasheet doesn't quite correspond to Figure 23 that was reference to and therefore want to verify for customer on this and which values he should be selecting.

Thanks in advance and best regards,

Jerry Leung

  • 0
    TI__Guru 67476 points

    The equations in bq2407XT data sheet are correct, Equation 3 and 4 section 9.3.12 also section 10.2.1.2.4.

    R6 value of 19.14k and R7 value of 8.236k would work with an NTC 103AT-2 for 0C to 50 C application

    But R6 and R7 values used in Figure 23, 33 and figure on Page 1 would not apply this this NTC or temp range..