BQ25713B: Few questions about the IC

Hi, Antonio,

Antonio López said:

• Which is the difference between BQ25713 and BQ25713B?

The difference is the I2C address. It allows two charger devices on the same board, with two different I2C addresses. 

Antonio López said:

• Can I make my own PCB with the typical application componentes like in the figure 10-1 from the datasheet or I need more like in the EVM board? (My project is only for charging batteries 1S but  I want to configure the charge current).

You can make your own board by following the EVM board. 

Antonio López said:

• And why do you recommend 4- layers instead of 2?(If the recomendation is 4 in which layer are for the power, ground and signals?) 

4-layer board is recommended, due to complexity. See below for layout instructions and guideline. 

https://www.ti.com/document-viewer/BQ25720/datasheet#GUID-7FC2E9DF-F41F-4D64-84A3-A0D50AC018A0/TITLE-SLUSDU3TOCWRAPPER_LAYOUT

Regards,

Tiger