Hi,
I'm little trouble with RT1 and RT2 calculation. I'm using a lithium-Polymer battery working between 2,75V and 4,2V. If I follow the formula with VBUS = 5V, so VREGN = 4,8V and a Cold/Hot Temperature Window in charge between +10°C and +45°C or 18K and 5K on the RTC, I find RT1 negative.
It seems my temperature window in charge is too small to have a good value for RT1. Are you agree with this result ?
Best regards,
