We are working with a battery charging circuit using bq24171 IC.
The charger input voltage is 5V and the charge current is set to 2A.
Now the issue is that when we power the Board with 5V input, the charging functionality is not working properly.
Our system load will be 800mA.
Case1 :
Input votlage @ 5V/5A , Battery voltage - 3.6V
Charger current will not go above 200 mA
if we connect the battery around 4 hours the charger current will reduces to 150mA and battery voltage will be 3.8V
Case2 :
Input votlage @ 5.3V
The charger current will be around 1.6A
From the data sheet it is given that the Bq24171 input voltage range is 4.5 - 17V. The architecture is shown below
Kindly share your inputs