I am using BQ24020DRCR IC for charging a 1800 mah battery with solar panel connected through USB.
i have set RSET=1000 Ohms.
when my battery is deeply discharged solar panel is unable to provide pre-charge current and charge the battery. whereas AC adapter is able to provide pre-charge current. i want to know why solar panel IC Is not able to provide pre-charge current and is there any alternative IC that i can use to overcome this problem..
my solar panel produces 5v, 250mA current. in bright sunlight.
thanks in advance
regards
sagar