SLUSFD7 April 2024 BQ25308
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
The charger device provides a single thermistor input TS pin for battery temperature monitor. RT1 and RT2 program the cold temperature T1 and hot temperature T3. In the equations, RNTC,T1 is the NTC thermistor resistance value at temperature T1 and RNTC,T3 is the NTC thermistor resistance values at temperature T3. Select 0°C to 45°C for the battery charge temperature range, then NTC thermistor 103AT-2 resistance RNTC,T1 = 27.28 kΩ ( at 0°C) and RNTC,T3 = 4.91 kΩ (at 45°C), from Equation 1 and Equation 2, RT1 and RT2 are derived as:
• RT1 = 4.53 kΩ
• RT2 = 22.6 kΩ