Hi all,
I have used BQ2057W in my design for batter charging application. I have used battery with NTC thermistor.
I have used reference design given in TI's BQ2057W datasheet. For Battery Temperature Monitoring, two Resistors values need to be calculated. As shown below.
In my case, Rth value is 7.2K and Rtc value is 8.6K. So, when I calculate Rt2 Value. I got negative resistor value.
So which value resistor is to be used for voltage divider. Any solution Regarding this.
Regards,
Dipesh Karli