• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 29 subscribers
  • Views 362 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.

Audio amp, 50W,

Jin-Suk Choi
Intellectual 1450 points
Other Parts Discussed in Thread: TPA3128D2

Hi~

My customer looking for 45W@4ohm power Amp which has analog input.

I proposed TPA311x series but it couldn't meet 45W@4ohm under 12V input.

Would you please proper device or should I use boost power stage?

Any advice would be welcome.

Thanks.

  • 0
    TI__Mastermind 24835 points

    Hi Jin-Suk,

    If use PVCC=12V/Load=4ohm, it's not possible to get 45W output power with any device. I think you need to use a higher PVCC power voltage.  Please refer to TPA3128D2. It can provide 50W output power and THD=10% with PVCC=20V/ Load=4ohm, and 50W output power and THD=1% with PVCC=22V/ Load=4ohm. Please also pay attention to the thermal dissipation design because of the high output power. 

    Best regards,

    Shawn Zheng