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TPS2552: Transient thermal resistance of TPS2552DBV (SOT)

Part Number: TPS2552
Other Parts Discussed in Thread: TEST

I'm looking data or graph of transient thermal resistance regarding TPS2552DBV (SOT-23). Do you have that data available?

  • Hello,

    The expert responsible for this device is located in China. Please expect a delay in response. Thanks in advance for your patience.

  • Hi Sir,

    Sorry for that. We don't have this data.

    For TI's policy, I will first click resolved button.

    If you have any other concern, contact me any time.

    If you think resolved, please help click 'Issue is solved button'.

    Thanks.

  • Is it possible to characterize this data? We are looking for solution where we have highly capacitive load (1...2mF) on device output. Charging this load will cause excessive heating on device. We need to assess the heating of the during turn-on event.

  • Hi Teroa,

    For the worst case, the part has short circuit protection. It will not break the part as with high current.

    We only have the stable thermal data as datasheet indicated and guaranteed.

    For TI's policy, I will first click resolved button.

    If you have any other concern, contact me any time.

    If you think resolved, please help click 'Issue is solved button'.

    Thanks.

  • High power event during turn-on takes only 1-10ms. Do you see that it is feasible to use stable thermal data for that short event? Calculation based on stable thermal data show that device thermal shutdown threshold limit is exceeded --> circuit won't work.

  • Hi Teroa,

    Short circuit is sure to trigger thermal shut down until cooling down.

    And it will not break the part. But sure the circuit will not work until cooling down.

    For transient thermal data, you can ask the FAE who support you to submit a ticket.

    Maybe TI thermal team can help do the test.

    If any, contact me any time.

    Thanks.