• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 30 subscribers
  • Views 2813 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPA3116 circuit test

Fernando Cuzziol30
Prodigy 80 points
Other Parts Discussed in Thread: TPA3116D2

Test TPA3116 PBTL

I did the tests as the circuit attached, using two different source of tension.

In the first test used a 12V x 2A

The results were:

9.08 Vac with 4 ohm load, resulting in a power of 20,61W

In the second test, I used a source of 24V x 2A

The results were:

17.62 Vac with 4 ohm load, resulting in a power of 77,61W

Photos attached.

I wonder if these results are satisfactory or it is possible to improve ??

Someone managed to draw 100W to advertise on data-sheet ??

  • 0
    TI__Mastermind 37045 points
    Hello,

    Thank you for your interest in TPA3116D2. Interesting lab setup :) What is the end application for this project?
    I would suggest ordering an EVM and check it out. The EVM is able to meet the 100W spec with the stock heat sink. If you are not able to meet the Po spec in your system you may want to check the following -

    1. Power loss due to wire, inductors or PCB traces?
    2. Insufficient heat sink resulting in thermal protection?
    3. Enough Po capability from the power supply?
    4. Accurate measurement of the dummy load resistance.

    reg,
    Paul.
  • 0 in reply to user5276421
    Prodigy 80 points

    Paul,

    Thanks for the contact.

    As for the EVM got one with the TEXAS distributor in my area.

    My application is exactly the test circuit.

    Amplified multipurpose box, USB input, microphone or instrument and assist.

    Answers to your questions:

    1. Power loss due to wire, inductors or PCB traces?

    - I am attaching the PCB layout to analyze tracks.

    2. Insufficient heat sink Resulting in thermal protection?

    - Have increased the mass of aluminum, the result was not so much bigger.

    3. Enough Po capability from the power supply?

    - What is the current to achieve 50W at 12V and which the current to reach 100W 24V ??

    4. Accurate measurement of the dummy load resistance.

    - The measurement was made with porcelain Resistor 3R8 x 15W

    I await return

    Fernando