Tool/software:
Hello.
In my 8.4V 1.5A charger I use the BQ25756E chip in host mode.
In the initialization function I write values to registers:
REG0x02 (Charge_Current_Limit Register) = 0b11000001;
REG0x14 (Precharge_and_Termination_Control Register) = 0b00001110;
REG0x15 (Timer_Control Register) = 0b00001001;
REG0x18 (Pin_Control Register) = 0b11000000;
REG0x19 (Power_Path_and_Reverse_Mode_Control Register) = 0b00000000;
REG0x2B_ADC (Control Register) = 0b00000000
Pin /CE -> set to 1 (disable).
What happens next is:
if the battery is not installed in the charger
and I enable charge (pin /CE -> set to 0), the charger begins to cycle
from Fast Charge mode (CHARGE_STAT = 011b) to
Charge Termination Done mode (CHARGE_STAT = 111b) and back.
No errors occur in the REG0x24 Fault_Status Register.
Next, when the battery is installed, charging begins.
Please tell me if this is normal mode for the charger?
Here are my output capacitance:
