Use the BQ25121 with 3V battery

Luiz Roque

Other Parts Discussed in Thread: BQ25121

Hi, I have a question if I can use the BQ25121 with a 3V Li-ion battery, like VL-3032/GUFN? I will set the SYS output with 2.5V and recharge from a 5V USB.

Thank you.

over 7 years ago

0 Gautham over 7 years ago

TI__Genius 12475 points

Luiz,

Are you saying that you want the SYS rail to charge the battery? The minimum VBATREG on our device is 3.6V. That seems a little on the higher side for your battery.

thanks,
gautham

Power management

Power management forum

Use the BQ25121 with 3V battery