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BQ24640: TS pin monitoring temp

Part Number: BQ24640

Hi team,

 

My customer is considering using BQ24640, and I’d like to ask your help.

For TS pin, which temperature is it monitoring? The datasheet states BQ24640 monitors load temperature by measuring the voltage between TS and GND. However from my understanding, the voltage on TS pin is measured using external thermistor. So the measured temperature is the temperature around that thermistor, which means ambient temperature. Is my understanding correct? Or, is the thermistor supposed to be placed on the load?

 

Best regards,

Kurumi