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TPS25982: TPS25982 parallel mode application

Part Number: TPS25982

Hi,

 I am using tps25982 as a eFuse in my design.  I want to use 2 IC's in parallel mode to limit current (nearly 20 Amps) to my load  as per the link http://www.ti.com/lit/an/slva836/slva836.pdf

Does this part support parallel mode of operation for a 20 Amps of load ? If yes please suggest me how to connect?

Currently i am planning to use it as per the below mentioned schematic. Please check it and correct me with RILIM resistor value.

I am providing a input voltage Vin=12 Vdc. Ilim=20A.

  • Hi,

    Thanks for reaching out!.
    Let me check in the meanwhile can you share below information..
    1. What is the total output capacitance ? and the type of load?
    2. Application use case and end equipment details.

    Best Regards,
    Rakesh
  • Hi Rakesh,

    Thanks for the reply!

    1. What is the total output capacitance ? and the type of load?

    The total output capacitance value is approximately 400uF and the type of load is capacitive .


    2. Application use case and end equipment details.

    It is mostly with a digital system application which contains an FPGA.






    Regards,
    Sandeep
  • Hi Sandeep,

    Thanks for the details.

    Our initial validation shows some challenges during startup condition in parallel configuration. We need to do full evaluation to confirm parallel operation. Right now, we are occupied with product release activities and would get time to validate in June.
    Appreciate your patience. For the time being please look at http://ti.com/hotswap for hot-swap solutions to support >15A systems

    Best Regards,
    Rakesh
  • Hi Rakesh,

    Thanks for your reply!

    As per the earlier query i had gave you link (http://www.ti.com/lit/an/slva836/slva836.pdf) for the application design (using TPS 259241) that i referred.

    Please do let me know whether it is a proven design or not ,so that i can use it in my design.  If yes request you to provide me the link where it is used e.g. evaluation module etc.

    Meanwhile please provide me some more details or reference designs with the hot swap applications as you suggested. 

    Regards,

    Sandeep

  • Hi Sandeep,

    TPS259241 parallel operation was proven using multiple EVMs and several of our customers are using. we don't have a released eval board but you can get TPS259241 EVMs and connect them in parallel for verification.

    for the hot-swap example 12V, 25A please refer www.ti.com/.../tps24710evm-003

    Best Regards,
    Rakesh