SPV1050 How to limit the charging current for a small LiPO battery

[01Solutions]

Hello!

on our project that use the SPV1050, we need to charge a small LiPo battery that have a 20mA maximum charging current. Could someone help me find a good solutions for regulate the current from BATT Pin?

thanks in advance,

Andrea

[Peter BENSCH]

Welcome ​@01Solutions, to the community!

There are several ways you can limit the charging current, which also depend on how your overall system is set up and where your load is connected:

• Limiting the SPV1050’s output power by limiting the input current
• Charge controller on BATT, e.g. with the L6924D or a discrete linear regulator

20mA at a maximum of 4.2V corresponds to a maximum charging power of 84mW. If your source stays below that plus the losses, the charging current should be automatically limited.

Hope that helps?

Regards
/Peter