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Original question:

BQ25618: BQ25618 low iq solution

BQ25618: BQ25618 T2/T3 setting change

Brian Chan
Expert 7040 points
Part Number: BQ25618


Tool/software:

Hi Team

My customer side want to set T5 as 50 degree but datasheet condition is T5 = 60.

do it have any requirement to change to ratio of T2/T3? because the resistor divider ratio is different. is T2/T3 setting still accurate?

BRs

Brian

  • 0
    TI__Mastermind 41865 points

    Hi Brian,

    The key here is the ratio with respect to REGN matters. Whatever temperature results in a resistance that corresponds to the ratio is the setting temperature. However, as shown by the equations, only two temperatures can be used to set the resistor divider. The part itself cannot measure temperature. It only measures the voltage on the TS pin.

    Regards,

    Mike Emanuel