Hi,
I want the BQ24072T to charge between 5°C and 40°C.
According to the sensor datasheet, R_Cold is 22.02kOhm and R_Hot is 5.827kOhm. I have calculated the following values:
R6: 31,7k (Used value is 31.6k)
R7: 20.3k
R8=100k
But when I use these values and adjust the resistance of the termistor (using a potentiometer), the charging will not stop until approximatery 30kOhm which is below 0°C according to the sensor datasheet.
(103AT, Beta=3435K, R25=10kOhm)
Are my calculated values wrong?
Thanks