I'm developing a battery charger with the MCP73833 IC.
I want to set up the charge temperature window between 0 °C - 60 °C .
How can I calculate Rt1 and Rt2 ?
You need to select the Ntc thermistor first, either 5K, 24K, 25K, 10K , 33k etc..then look up it's resistance on the datasheet chart at the specific temperatures 0C and 60C, this will give you the answer to the formulas when you put the values in.