TLV320AIC3100: About the supply current of HPVDD

Masanori Tachibana

Part Number: TLV320AIC3100

Hello support team,

I have a question with TLV320AIC3100.

How will the supply current of HPVDD vary when turning on or off the HPL output driver by changing the value of Page 1 / Register 31 D7?

For example, in PRB-P25 mode,
Page 1 / Register 31 D7 = 1 ---> HPVDD = what mA?
Page 1 / Register 31 D7 = 0 ---> HPVDD = what mA?

Sincerely,
M. Tachibna

over 7 years ago

0 Steve-Wilson over 7 years ago

TI__Mastermind 30210 points

Tachibana-san,

There are some HPVDD current measurements made in the following application report. please let me know if they are adequate.
www.ti.com/.../slaa468b.pdf

best regards,
-Steve Wilson

0 Masanori Tachibana over 7 years ago in reply to Steve-Wilson

Genius 5350 points

Hello Wilson-san,

For example, in case of "Stereo Playback via Headphones With PRB-P25 Processing Block" that is described in Table 11 of the document "SLAA468B".

In this case, I think the current consumption of HVDD is 3.46 mA when HPL output driver is powered up (Page 1 / Register 31 D7 = 1).
I would like to know how the current consumption of HVDD varies when HPL output driver is powered down (Page 1 / Register 31 D7 = 0).

Sincerely,
M. Tachibana

0 Steve-Wilson over 7 years ago in reply to Masanori Tachibana

TI__Mastermind 30210 points

Tachibana-san,

Please note that Tables 23-28 show the HPL and HPR driver powered down with PRB-1. the configuration is shown.
You can compare this to Table 2, to get an idea of what the difference is.

best regards,
-Steve wilson

0 Masanori Tachibana over 7 years ago in reply to Steve-Wilson

Genius 5350 points

Hello Wilson-san,

I'm sorry to my late reply.
Thank you for the advice.
As you taught, I'll try to compare the current of HVDD with the value of Tables 23-28 and to calculate.

Sincerely,
M. Tachibana

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TLV320AIC3100: About the supply current of HPVDD