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TPS25750: USB PD solution for 5s and 10s battery packs upto 240 W

Dattatreya Roy
Prodigy 70 points
Part Number: TPS25750
Other Parts Discussed in Thread: BQ25731,

Hi,

Does texas instruments provide any USB Power delivery solutions (USB controller IC and charger controller IC - upto 240 W) for 5s (upto 21V) and 10s (upto 42 V) battery packs? 

  • 0
    TI__Expert 7950 points

    Are asking about USB-PD3.1 Extended voltage support?

  • 0 in reply to Ghouse Mohiuddin23
    Prodigy 70 points

    Yes, the USB-PD 3.1 extended power range (EPR). Does TI have any USB controller ICs / charger controller ICs supporting EPR?

    PS: I am planning to build a USB-PD charger capable of charging 5s (max. pack voltage 21 V) and 10s (max. pack voltage 42 V) battery packs with charging currents upto 5 A. I could find only 1 relevant charger controller IC (BQ25731) that is USB-PD compatible and also supports upto 5 cells in series. Also, I do not know if this IC is compatible with TPS25750 USB controller IC which I am also planning to use. Are there ICs / design solutions from TI that can help me in this project?

  • 0 in reply to Dattatreya Roy
    TI__Mastermind 30000 points

    Hello Dattatreya,

    Yes we do have plans of implementing  USB-PD3.1 with 240W in one of our future devices. We will create a reference design with a new EPR battery charger similar to this design https://www.ti.com/tool/USB-PD-CHG-EVM-01 

    Unfortunately, the TPS25750 will not support EPR 240W functionality. We do not have an exact date on when this new device and design will be available on TI.com

    Would you be able to elaborate on your end equipment and why you are wanting to take advantage of the new EPR voltage ranges? 

  • 0 in reply to Adam Mc Gaffin
    Prodigy 70 points

    Hi Adam,

    Thanks a lot for the information! Will the TPS25750 support charging battery packs with upto 5 cells in series (if I club it with BQ25731 charger controller IC and a MCU unit)? If not, is there any other USB controller IC from TI that is compatible with TPS25750 charger controller IC (or any other equivalent charger controller IC) to charge a 5s battery pack?

    My task currently is to develop a charging system using USB-PD protocol for portable battery packs. These battery packs have either 5 or 10 cells in series, therefore the maximum pack voltage will touch 21 and 42 V for 5s and 10s packs respectively upon full charge. I haven't been able to find a USB controller IC (yet) that can support charging battery packs with more than 4 cells in series. Could you help me with some reference designs / design ideas for developing a charging system for such packs?

  • +1 in reply to Dattatreya Roy
    TI__Mastermind 30000 points

    Hello,

    Yes the TPS25750 can operate with the BQ25731 and charge 5 cell batteries. However, the TPS25750 can only negotiate a maximum power of 100W (20V/5A).

    As far as 10 cell designs, the TPS25750 currently does not support any 10 cell battery chargers. But we do have plans for this in the future, which is what I highlighted above, but unfortunately do not have a date right now on when this will be available. 

  • 0 in reply to Adam Mc Gaffin
    Prodigy 70 points

    Hi Adam,

    Thanks, this should help! I will then go ahead with TPS25750 and BQ25731 for charging a 5s pack. Is there a way of getting a notification (on my email) when the EPR 240W ICs are released?

  • 0 in reply to Dattatreya Roy
    TI__Mastermind 30000 points

    Unfortunately we do not have that capability right now. What I would recommend is checking back in 6 months from now to see if anything has been posted. If not, we will definitely have a better picture of when it will be released to the web. 

  • 0 in reply to Adam Mc Gaffin
    Prodigy 70 points

    That sounds great! Thank you very much for your help and support!