Other Parts Discussed in Thread: BQ24773, BQ24780S, BQ24770
1. When is batdrv signal low and high? What is the voltage value when it is high?
2. How does bq24715 detect whether the battery is in or not?
It is found that the temperature of the output inductor is normal when only the battery is used; the temperature of the output inductor is very high when there is only external power supply (type C)
When there is no battery in the measurement, the discharge MOS of the battery is not completely closed, gate 5.4v, source 8.7v; then the upper and lower bridge MOS are also working all the time, and the output voltage is adjusted to 8.7v