Dear Jeff
Thank you very much for your answer.
After your post and more research I figured out, that USB-PD power supplies only do the handshake on the CC lines of the USB type C connector (pin A5 and B5).
So my mistake is, that I need a CC controller IC like the TUSB321AI. If I am right, this IC should tell the charger to deliver 5V at 3A. After that, the charger IC gets the energy on the VBUS lines (A4, A9, B4, B9) without any handshakes on the USB data lines (A6, A7, B6, B7) required.
So if I am right, I can take a even simpler charger IC without any hand shaking like a standalone charger for example BQ25606 (3A max) or BQ24600 (10A max) in this case.
Question to the forum:
If I want to charge a big battery pack with 20Ah in our industry project. Can you recommend a good solution (easy to handle (no BGA), low complexity (no I2C) and lower price) for a CC controller and a standalone charger of TI? I thought about the TUSB422 to set the USB-PD supply to 20V and 3A (60W) and then charge with the BQ24600 (10A max).
1) I saw that the TUSB422 required I2C and is available in BGA housing with 0.4mm pitch only. Especially the package is quite tricky for our processes. Isn't there a standalone version to force the USB-PD charger to 20V and 3A in a QFN housing?
2) I saw the BQ24600 is quite powerful and can handle up to 4 cells. Does TI has a simpler version for one cell (similar to BQ25606) but for higher currents (eg. 10A)?
Thank you for your comments!
Felix
