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BQ24078: BQ24078 - Rs and Rp

Ian Wang
Mastermind 26495 points
Part Number: BQ24078
Other Parts Discussed in Thread: BQ24072T, , BQ24075T, BQ24079T, BQ25155, BQ21061

Hi Sir,

My customer using battery charging temperature will be 0-45 degree C. How to set Rs and Rp?

It only shows the lowest temperature is 51 degree C. How about 45 degree C?

Thanks, Ian.

  • 0
    TI__Mastermind 23220 points

    Hi Ian,

    With the BQ24078, this temperature range is not possible with a current based TS battery monitoring system. It is recommended to use a voltage based battery monitoring system such as the BQ24072T, BQ24075T, or BQ24079T. 

    If the battery regulation voltage is desired to be 4.35V and I2C control is available in the system, there are a few devices such as the BQ21061 or BQ25155 that can be used.