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Original question:

TAS5717/TAS5719 Power-on/off Sequence

TAS5717: Power-on/off Sequence

Arne Bohnsack
Prodigy 70 points
Part Number: TAS5717

Hi,

I was searching for power on/off sequencing requirements for the TAS5717 amplifier. The Datasheet seems to miss this out completely, but I found this thread which references the TAS5713M Datasheet Figure 69:

https://e2e.ti.com/support/audio-group/audio/f/audio-forum/470168/tas5717-tas5719-power-on-off-sequence

I have the following additional questions:

  1. Why is the Power Sequencing not in the TAS5717 Datasheet? Was it just forgotten, or is it not important for this amplifier?
  2. What could be the consequences when PVDD ramps up before AVDD/DVDD? Could it cause a Latch-Up?
  3. Are the chapters "10.2.1.2.4.1 Initialization Sequence" and "10.2.1.2.4.3 Shutdown Sequence" from TAS5713M Datasheet also applicable for TAS5717?

Best Regards,

Arne