Tool/software:
Hi team,
1. How can the BQ25713 charge a 12.6V lithium battery through peripheral circuits without configuring the chip through a microcontroller?
2. The circuit board I drew has an input voltage of 12V and an output voltage of only 3 to 4V when powered on. When the input is powered on, there is a current of 100mA. After a few seconds, the current is 20mA.
The input voltage of the 12V power supply REGN is 6V, and the voltage of the CHRG_OK and PSYS pins is 3.3V. However, after connecting the battery, the voltage of these two pins disappears, and even after removing the battery, there is no voltage. It is necessary to disconnect all input voltages and power on again to restore it. How to solve this problem?
3. When the battery is connected, the G poles of input power sources Q1 and Q4 are connected to a voltage of about 5.5 volts, while the G poles of Q2 and Q3 are connected to GND. Is it normal for a PMOS to charge a lithium battery with a G-pole voltage of around 1.2 volts when not connected to a battery and an input power supply, and around 10 volts when connected to a battery?
Here is SCH
Thanks & Best regards,
Jiahui
