How to configure charge current of nPM1300 to 8mA

[Tom.Fu]

Hi Support Team

Our project need 8mA charge current,  how to configure charge current of nPM1300 to 8mA？ Or could you provides us other nPM chip or solution that can meet 8mA charge current? Many thanks.

[Parth Parekh]

The minimum charge current for nPM1300 is 32mA so charging at 8mA wont be possible from it. 

[Tom.Fu]

Can nPM1300 run normally if adding an external resistor to limit the charge current to 8mA？Many thanks.

[mathiaso]

Hi, Tom.

As Parth is saying, the nPM1300 PS states that the nPM1300 has a configurable charge current from 32 mA to 800 mA. Thus, it doesn't support a charge current as low as 8 mA. The nPM1100 supports charging currents down to 20 mA.

Best regards,
Mathias

[Tom.Fu]

OK，many thanks.

[Parth Parekh]

Tom.Fu said:

Can nPM1300 run normally if adding an external resistor to limit the charge current to 8mA？Many thanks.

That would lead to an inefficient system, as it would result in power loss. Additionally, since you need the battery to power the system, this approach wouldn't be ideal.