Other Parts Discussed in Thread: BQSTUDIO
Tool/software: TI C/C++ Compiler
Bq27520 development board temperature measurement is not accurate
At present, we use the demo board of bq27520 to connect our battery for temperature calibration (the TS of the demo board is connected to the temperature sensing pin of the battery).
The actual battery temperature was measured at 30 degrees, but the temperature displayed in the bqstudio interface was 56 degrees. The temperature did not change after calibration and was still 56 degrees.
Later I learned that I need to modify the temperature coefficients ext a coef 1-5 and ext b coef 1-4 in DATA FLASH.
The manual says that you need to use a 10K NTC 103AT type thermistor. The thermistor we are currently using is NCP15XH103F03RC, B-Constant
25-50 degrees is 3380K, I don't know if it is related to the requirements in the manual.
symbol? If it does not match how to calculate to modify the parameters?
