TPS63900: parallel method

Hi Ottey,

Why do you want to use TPS63900 in parallel? What are your consideration? Does single device have enough current capability or you want to optimize choice of components like inductor?

Best Regards,

Yichen Xu

Hi Yichen

Thank you for your reply.

I think that the TPS63900 is connected in parallel for load sharing, and when I introduce the TPS63900, I would like to explain that this method can be used.
However, to explain it, you need to know the settings required to connect the TPS63900 in parallel.
If you have any information or advice, please let me know.

Regards,

Y.Ottey

Hi Ottey,

I tried using two tps63900 in parallel directly with the same parameter, the load sharing is not perfect equivalent but the system is stable. It could take me several to gather more information if you do not mind waiting.

Best Regards,

Yichen 

Hi Yichen

Thank you for checking the operation.

Can you ask Julian Hagedorn, who conducted the Webinar of the following materials,
about the setting and connection method when using TPS63900 in parallel?

https://www.ti.com/lit/ml/slpp104/slpp104.pdf?ts=1608198020349&ref_url=https%253A%252F%252Ftraining.ti.com%252F

Perhaps he would be able to elaborate on what I asked.

Regards,
Y.Ottey

Hi Ottey,

I can contact Julian Hagedorn but I am not sure when he will reply me because Christmas is coming. Whatever, I will reply you as soon as I get response. 

Best Regards,

Yichen

Hi Ottey,

I get feedback from Julian today. He connected the boards with as short as possible connection. They soldered on one board at the bottom of VIN/VOUT connectors some female headers like this:

It is crucial that you have a low impedance connection of the VOUTs. So there is no extra setting about this. 

Best Regards,

Yichen