Hello guys,

Below chip i am using to design battery charger. This design will be used only to charge the battery and after charging the battery it will used in product so this is basically battery charger.

I have below doubt while designing the circuit. Could anybody help me here ?

1. SW Pin : I will not use any supply voltage to power up the board.
Is it necessary to connect SW pin 1uH inductor and capacitor if system supply not needed.
2. /QON Pin : I am not sure, Where do i connect this pin ? It is given optional here.
3. PMID & PMID Pin connection

 

Unless someone on AAC is already familiar with this chip and has used it (unlikely, considering the lack of response so far), the only way anyone here could possibly help you would be to download the BQ25618 data sheet and read it to find the answers to your questions.

But reading the data sheet is something you can, and should, do for yourself rather than expecting us to do the work for you.

READ THE DATA SHEET.

 

You cannot delete the output inductor and capacitor, as that is where the power comes from to charge the battery.

 

Thanks all,

Somehow i read datasheet again & again and able to design.