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TPS25910 / power limit

Tsukui Yusuke
Guru 21930 points
Other Parts Discussed in Thread: TPS25910

Hi,

Customer is considering the TPS25910.
Could you tell me about TPS25910 power limit.
How many Power limit have a margin for SOA?
Customer is concerned about deterioration of FET when power limiting.
Could you tell me the association of Power limit and SOA.

Best Regards,
Yusuke/Japan Disty

  • 0
    TI__Intellectual 2980 points
    Hello Yusuke,
    The Built in SOA protection ensures that the internal MOSFET operates inside a safe operating area (SOA) under the harshest operating conditions.
    The typical power limit of TPS25910 is 5W. this operates in power-limit mode during an overload condition and increases the voltage drop across power switch. The thermal sensor turns off the power switch when the die temperature exceeds 160°C. Please let us know id this information is sufficient for the customer
    The power limit and its margin from SOA is not mention in the data sheet.
    I will discuss internally and get back to you.

    Regards
    Dinesh
  • 0 in reply to Dinesh Kumar6
    Guru 21930 points

     Hi Dinesh,

    Thank you for your support.
    Customer is concerned about the destruction of the FET by the pulse voltage.
    Does the FET used for TPS25910 destroy it by secondary breakdown?
    Could you tell me the SOA information or Data of FET used for TPS25910.
    In the case of the contents which you cannot attach, give me email.

    tsukui-y@clv.macnica.co.jp

    Best Regards,
    Yusuke/Japan Disty

  • 0 in reply to Dinesh Kumar6
    Guru 21930 points

    Hi Dinesh,

    Thank you for your support.
    Customer is concerned about destruction of the FET by pulse voltage.
    Does the FET used for A destroy it by secondary breakdown?
    Could you tell me the data about SOA of the FET which TPS25910 uses.

    In the case of the contents which you cannot attach, give me an email.
    tsukui-y@clv.macnica.co.jp

    Best Regards,
    Yusuke/Japan Disty

  • 0 in reply to Tsukui Yusuke
    TI__Intellectual 2980 points
    Hello Yusuke,
    I will discuss internally and will get back to you on this.

    Best Regards
    Dinesh
  • 0 in reply to Dinesh Kumar6
    TI__Intellectual 2980 points
    Hello Yuske
    Please let customer know that " Internal FETs are always thermally protected. So, even if external conditions force them outside the SoA, the thermal shutdown will protect the FET and shutdown the system." So no worries.
    Who is the the customer and business opportunity potential ?


    Regards
    Dinesh