USB Type C PD DRP

Darren DeBattista1

Other Parts Discussed in Thread: TPS65987D, BQ25713

Hi,

I'm new to USB type-C and would like some guidance regarding possible devices to use for my application. I'm designing what is basically a power bank, which should source and sink from the same SUB Type C connector. As said, it is just power delivery and power sink for charging. There is no communication involved. The maximum available power should be the full 100W.

I've been looking for possible devices but ended up confused as a lot of devices may be an overkill for my application given that I do not need USB type C data. Can someone please recommend devices and development boards specifically for bi-direction USB Type C PD?

Note: Most probably, I would need a boost circuit to generate the 20V since I'm running from a fixed supply. Does TI have bi-directional buck-boost converters which can be used in such an application?

Thanks

over 3 years ago

0 Adam Mc Gaffin over 3 years ago

TI__Mastermind 27505 points

Hello Darren,

If this is a single port system, I would recommend the TPS65987D. The webpage for the TPS65987EVM has helpful steps for you to follow to get started with the device. This device incorporates two internal power paths that can be designed as a source and sink, so there is no need for external FETs or power paths.

If this is a power bank, and your system has a battery, you can look at the buck boost battery chargers such as the BQ25713. This is a bi directional device that for you to sink and source power from your central battery.

You can control the BQ25713 using the TPS65987D. Here is an app note that can help you get started using the TPS65987D as an I2C master

https://www.ti.com/lit/an/slvae18/slvae18.pdf?ts=1590795492023

0 Darren DeBattista1 over 3 years ago in reply to Adam Mc Gaffin

Intellectual 335 points

Hi Adam,

Thanks. This is exactly what I was looking for.

Power management

Power management forum

USB Type C PD DRP