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TPS65982: USB-C device that can output power while being a device

Joselito Go
Expert 3800 points
Part Number: TPS65982
Other Parts Discussed in Thread: TPS25750

Hi Experts,

Good day.

so it will take me some time to understand everything in the datasheet, so the quick question is: will this chip behave in the following ways:
1. Being capable of using plain passive (no chip) USB-C to USB-A (standard 4-pin Type A male) cable?
2. When connected to a computer (a host with its own 5V VBUS present at the USB connector) behave as a normal device (slave, UFP) without putting its own 5V to the VBUS?
3. When connected to a host WITHOUT its own power (needs to be powered by the VBUS; yes, non-standard) behave as a device BUT with outting 5V to the VBUS (to power the host). If not, ,what is the best way of doing it?


Regards,

Josel

  • 0
    TI__Mastermind 22185 points

    Hi Josel,

    Our PD controllers should be capable of all of the mentioned operating modes but the part will need to be configured properly.

    1. USB-C is backwards compatible and will communicate with USB-A ports(assuming both are compliant)

    2. Yes

    3. The device may have to start the contract as a Power Source and a DFP(host) but after the power contract is negotiated it can do a data role swap to allow the host to be the DFP.

    We have a couple different devices that may fit your needs, and would not recommend using the TPS65982 as it is one of our older parts.

    Part selection will depend on the power and data capabilites.

    If the customer does not plan on exceeding 5V power on VBUS, they can look at the 2581X series of parts. 

    If they need more than 5V they can use the TPS25750.

    You should also check if they need support for USB 2.0, 3.0, DP, TBT, and have any other data requirements.

    Thanks and Regards,

    Chris