• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Subscribers 30 subscribers
  • Views 706 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

TPA3106D1 Absolute Maximum Ratings

NAOKI AOYAMA
Guru 11215 points
Other Parts Discussed in Thread: TPA3106D1, TPA3118D2

Hello,

Our customer uses the TPA3106D1 and has question.

Is there the  Absolute Maximum Ratings about BSP, BSN, OUTP and OUTN terminal voltage?

Just like that is mentioned on the datasheet of the TASxxxx series.

Regards,

Naoki Aoyama

  • 0
    TI__Genius 9175 points
    Hello Naoki,

    Unfortunately we do not have this data for the TPA3106D1. If the specifications in the datasheet adhered too, there should be no issues with the voltages present on the BSP, BSN, OUTP and OUTN since they are a function of the supply voltage based on the Class-D PWM switching amplitude.

    I would also make the suggestion to your customer to use the TAP3118D2 in PBTL mode for a mono load. This is a newer device with significantly improved performance and functionality.

    Best Regards,
    Matt Beardsworth
  • 0 in reply to Matthew Beardsworth
    Guru 11215 points
    Hi Matt,

    Thank you for your fast reply.
    I understood there is no spec.
    Usually, customer doesn't input voltage to these terminals.
    How about the impact of 'back e. m. f. ' by speaker?

    Best Regards,
    Naoki Aoyama
  • 0 in reply to NAOKI AOYAMA
    TI__Genius 9175 points

    Hi Naoki,

    Due to the inherently low output impedance of Class-D amplifier, back EMF is a non issue. The output stage will consume any back EMF from an inductive load ensuring that the voltage on the output pins will not rise.

    Best Regards,

    Matt

  • 0 in reply to Matthew Beardsworth
    Guru 11215 points
    Hi Matt,

    Thank you for your fast reply.

    I will feedback to our customer this information.
    I will suggest customer to use the TPA3118D2 ,too.

    Thanks,

    Naoki Aoyama