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12V module PTV12010WAH is heating up when power on.

vetrivel prakasam
Prodigy 90 points

12V module PTV12010WAH is heating up when power on.

But still it can deliver 5V to board and the load was just 1A.

Is this the expected behaviour?

Can i go ahead to load 8A?

Regards

P.Vetrivel

  • 0
    TI__Mastermind 38230 points

    12V PTV12010WAH when Vout is 5V and1 amp load, the average power inductor temperature is about 65°C at 25°C ambient opersating  temperature .

    At 8 Amp load and 5Vout, the inductor temperature can be 111-120°C at 25°C ambient operating temperature. The thermal(SOA) safe operating data is:

    At 8Amp load Vout =5V, Maximum ambient temperature limit is 40°C.

    Regards Tom

  • 0 in reply to Tom Guerin
    Prodigy 90 points

    Hi,

    Thanks for the reply.

    Is it okay to have the inductor temperature of 111-125 degrees at 25 degrees?

    If not please suggest the heat sink module ?

    Do you have any proven solution to reduce the inductor temperature ?

    Regards

    P.Vetrivel

  • 0 in reply to vetrivel prakasam
    TI__Mastermind 38230 points

    Hi :

    The Thermal data (SOA) limits when operating at 5Vout at 8Amps continuously at 115°C to 125°C will affect the module long term  reliability . There is no recommended  solution  for  reducing  inductor  temperature at 25°C operating temperature. One solution is to  increase  air flow across the  module  .

    The alternate  lower temperature  solution is PTV12020WAH  with  5Vout  at 8 amp load  with inductor temps 66°C-70°C at 25°C ambient temperature.