2.1 TDA2030 amp from ebay - Page 4 - diyAudio
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Old 31st May 2013, 10:45 PM   #31
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Sorry for opening this old thread again, but it seems like the only one about the 2.1 TDA2030A.

I want to hook the amp up to a 12v battery, is this possible? And how?
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Old 13th June 2013, 12:00 AM   #32
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Look up the data sheet on the tda2030 even the tda2050 is the same pins these amp ics can work in daul rails and one rail voltages.
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Old 18th October 2013, 05:47 AM   #33
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Zombie thread.
TDA2030 Id Quiescent drain current typical 50 maximum 80 ma.

These things get entirely to hot with volume off. With volume at I would estimate to be ~5 Watts, it could replace my soldering iron.

Price was ridiculous low, like less then $7. I got the same exact model as shown by
TDA2030A Amplifier DIY Kit Schematic and soldering howto | Atoomnet

Not the one original to this thread, I am putting it here because of the TDA2030 over heating problem. I'm thinking they may be manufacturer fall outs.

I checked some easy stuff DC or AC on the speaker out terminals and it looked clean. What else is odd, at maybe .3 Watts the thing sounds terrible. Soon as the volume is turned up to 2-5 Watt range the sound gets good. With the volume off, the two ICs are hotter then Christmas tree lights.

Not exactly an important event in the history of chip amps. I will get by Fry's in the next couple of days and see if the same part from NTE works.
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Old 18th October 2013, 07:57 AM   #34
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It should not be hot when there is no signal or even when low signal..these are straight chip Amps that work with supply's of 15 to 18 plus and minus volts and up to 30 volts in one rail mode.

If your amp is getting hot it could be to high rated transformer or heat sink is to small for it. Check there's no shorts in the tracks.

In put signal does not need to be high as distortion will happen....
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Old 18th October 2013, 09:42 PM   #35
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It is a stereo amp so the two 2030's are ~supposed to be separated. I mean they both have the same supplies and ground of course.

I had a couple of transformers and I am now running it on ~14VAC center tapped at 7. When I tried to run it at spec, the thing almost glows in the dark. Tried with volume off and speakers disconnected and both 2030 still ran hot. That could be the reason why I am getting lousy low volume performance, bottom of spec for supply voltage at the moment.

I have a heat sink *BUT* I haven't mounted it yet. With a -+18V supply it was in thermal shutdown at sound levels lower then a set of mini head phones would put out if you laid them on the counter. Turning the volume full off, unplugging the source, removing the speakers, still to hot to handle. Something odd is going on. Like the parts failed QC and walked out the back door to find their way into the market.

It isn't all disaster. Works fine at a comfortable listening level. Just can't go low or high volume.
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Old 18th October 2013, 10:48 PM   #36
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Might be fake devices... If there that hot they would have been damaged so replacements would be best.
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Old 22nd October 2013, 12:33 PM   #37
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watching this as i'm assembling an lm1875 based version of this
interested in how/what the tone controls are at the moment
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Old 22nd October 2013, 03:29 PM   #38
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base/mid/treb....
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Old 22nd October 2013, 03:31 PM   #39
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ohhh... i read somewhere mentioning no overall volume control
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Old 22nd October 2013, 03:36 PM   #40
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If you wish to build the chip amp as is and then use pre-amp to drive it or add tone circuit as if need be.


most chip amps are as is just psu and module...
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