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Old 15th August 2013, 10:45 PM   #1
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Default TPA3116 amplifier power

Hi,

I am interested by the following amplifier : TPA3116 Amplifier Board( 50W+50W ) D Class Amplifier Board-in Amplifier from Consumer Electronics on Aliexpress.com

Would it be possible to power it with 12V ?

Thanks a lot !
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Old 15th August 2013, 10:58 PM   #2
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It states that it requires at least 18volts. Sorry
Parameters
- Way of working: D class Static electricity: 50 ma
- Work efficiency: 90%
- The rated output power: 2 * 50 w
- Frequency response: 20 hz to 20 KHZ
- Operating voltage: DC18V to DC24V
- The maximum output current: 2 A
- PCB unit size: 81 * 69 mm
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Old 15th August 2013, 11:06 PM   #3
dfy is offline dfy
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The TPA3116 chip actually works with voltages down to 5V. This particular board may or may not, but for a price as low as that I would definitely try it.

Take into account though that even if it works, you will get nowhere near the 50W+50W power claimed on a 12V supply.
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Old 15th August 2013, 11:57 PM   #4
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It will work with 12 volts just fine. Max power will be less than rated power. You should check out this thread TPA3116D2 Amp
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Old 15th August 2013, 11:59 PM   #5
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Thanks for the answers.
Indeed, the parameters say that it needs 18V at least, but very often, the specification are not that right on Aliexpress.
I will definitely try it if nobody did it yet.

And I am aware that I won't get 50+50W with 12V, but I need less than that.
Thanks a lot !
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Old 16th August 2013, 01:31 AM   #6
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Quote:
Originally Posted by xrk971 View Post
It will work with 12 volts just fine. Max power will be less than rated power. You should check out this thread TPA3116D2 Amp
Yes, I was surprised when bench testing it how few volts it took to turn it on.
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Old 16th August 2013, 06:34 AM   #7
xrk971 is online now xrk971  United States
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Quote:
Originally Posted by roubi View Post
Thanks for the answers.
Indeed, the parameters say that it needs 18V at least, but very often, the specification are not that right on Aliexpress.
I will definitely try it if nobody did it yet.

And I am aware that I won't get 50+50W with 12V, but I need less than that.
Thanks a lot !
If you look at the parameters as specified by the manufacturer, only 4.5 volts is needed and max is 26 volts.

http://www.ti.com/lit/ds/symlink/tpa3118d2.pdf
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Old 16th August 2013, 05:55 PM   #8
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Quote:
Originally Posted by roubi View Post
Hi,

I am interested by the following amplifier : TPA3116 Amplifier Board( 50W+50W ) D Class Amplifier Board-in Amplifier from Consumer Electronics on Aliexpress.com

Would it be possible to power it with 12V ?

Thanks a lot !
http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=slyy013

Check out page 4
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Old 16th August 2013, 06:07 PM   #9
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Originally Posted by radiosmuck View Post
Very handy chart there.... Thanks for the link...
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Old 27th October 2014, 11:56 AM   #10
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how many ampere minimum for supply this amp ?
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