• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 799 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.

TAS5630B max current for VDD

Weiren Tee
Expert 1100 points
Other Parts Discussed in Thread: TAS5630B

Hi TI Folks,

May check with you what is the TAS5630B max current specification for VDD @VDD=12V  for worst case situation?Thanks.

Best Regards,

Weiren

  • 0
    TI__Guru**** 189399 points

    Hi, Weiren,

    The TAS5630B is a class-D amplifier. This makes your question a little bit complicated.

    Unlike a class-AB amplifier where the supply current = the load current, for a class-D amplifier, the supply POWER = the load POWER.

    So, you need to determine the maximum power that could be delivered to your load, divide that by the efficiency of the amp, and then convert that power back into a current from your 12V power supply.

    -d2

  • 0 in reply to Don Dapkus
    Expert 1100 points

    Hi Don,

    Sorry for the late reply. Thanks for sharing the information. But I am a bit confuse. The power for the amplifier should be taken care of by the PVDD_X right? The VDD should be mainly for the TAS5630B internal logic operation right?

     

    Regards,

    Weiren

  • 0 in reply to Weiren Tee
    TI__Mastermind 37045 points

    Weiren,

    The nominal VDD current is about 22.5mA. There is no max spec but should not be much more than nominal value. Place a bulk cap close to VDD pin to take care of any narrow in rush current.

    reg,

    Paul.