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RWood.5
Associate
June 7, 2023
Solved

what is the Max Single Supply voltage of a TDA7265 Amp IC

  • June 7, 2023
  • 2 replies
  • 2754 views

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    This topic has been closed for replies.
    Best answer by Peter BENSCH

    The TDA7265 can also be operated with a single supply if you connect the output load (speakers) DC-free via capacitors. An example can be found in the data sheet, Figure 2.

    The supply voltage can then be correspondingly high, i.e. 40V for the recommended range, but must never exceed 50V (data sheet, page 2: 25V-(-25V) = 50V).

    If you use this voltage range, the output capacitors should also have a voltage rating of at least 50V, better 80V.

    Hope that helps?

    Regards

    /Peter

    2 replies

    Piranha
    Principal III
    June 7, 2023

    First, there is not single supply option for these amplifiers. Second, the supply voltages ar clearly written in the datasheet.

    RWood.5
    RWood.5Author
    Associate
    June 8, 2023


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    RWood.5
    RWood.5Author
    Associate
    June 8, 2023

    Piranha..... this is in the date sheet, page 2 of 11 "clearly" says Single Supply application

    Peter BENSCH
    Peter BENSCHBest answer
    Technical Moderator
    June 8, 2023

    The TDA7265 can also be operated with a single supply if you connect the output load (speakers) DC-free via capacitors. An example can be found in the data sheet, Figure 2.

    The supply voltage can then be correspondingly high, i.e. 40V for the recommended range, but must never exceed 50V (data sheet, page 2: 25V-(-25V) = 50V).

    If you use this voltage range, the output capacitors should also have a voltage rating of at least 50V, better 80V.

    Hope that helps?

    Regards

    /Peter

    RWood.5
    RWood.5Author
    Associate
    June 8, 2023

    Thanks so much, that was the answer I was hoping for, just didn't know if being refrenced to ground that it would limit the max +25V.

    Peter BENSCH
    Technical Moderator
    June 8, 2023

    Great!

    If the problem is solved, please mark this thread as answered by selecting Select as best, as also explained here. This will help other users find that answer faster.

    Good luck!

    /Peter