TPA3110D2: Is the design OK about SD# and FAULT# ?

Lian Wu

Genius 5250 points

Part Number: TPA3110D2

Dears:

Could you kindly help to check the schematic about TPA3110D2?

041111582815_16.pdf

And especially about the below design:

1. Is the design OK about SD# and FAULT# ?

2. How to set the parameters about GAIN0 and GAIN1 when the input Level is 2-3Vrms?

Pls. kindly help to give some advice.

over 5 years ago

0 Alix Wan over 5 years ago

TI__Genius 9995 points

Hi Luck,

I am looking into this. Please also share basic spec with me, like PVDD, BTL?, Load=?ohm, expected maximum output power etc.

Regards,
Alix Wan.

0 Lian Wu over 5 years ago in reply to Alix Wan

Genius 5250 points

Hi Alix:
Pls. kindly refer the below information:
1. PVDD
Luck: Do you mean PVCC? PVCC is 12V.
2.BTL:
Luck: Using BTL output.
3. Load=?ohm
Luck: Every channel's load is 8 ohm, and power consumption is 5W.
4. There are 2 channels and connect 2 Loudspeaker.
Pls. kindly help to give some advice.

0 Alix Wan over 5 years ago in reply to Lian Wu

TI__Genius 9995 points

Hello,

Please refer to the schematic in UG.

SD circuit does not look good on my side. Circuit below is for your reference (you need to check based on your design)

As to the gain setting, please refer to the datasheet. If input is too larger, you can use two 1k resistor to decrease its range.

Regards,

Alix Wan.

0 Lian Wu over 5 years ago in reply to Alix Wan

Genius 5250 points

Hi Alix Wan:
Many thanks for your suggestions.
And there are other issues about the design.
1. Need we add ESD to protect if the loudspeaker is out?
2. Need we choose DCDC or LDO to power supply for TPA3110D2?

0 Alix Wan over 4 years ago in reply to Lian Wu

TI__Genius 9995 points

Hello,

Both the two questions are out of my recommendation. I would recommend to consult in power forum.
But on my side, ESD may be needed and DCDC is more suitable here.

Regards,
Alix Wan.

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TPA3110D2: Is the design OK about SD# and FAULT# ?