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GB for TPA3116/8 PBTL bare pcb

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#243
Cancel Request

DUG,

Please cancel my request for 2 x boards and 2 x kits.

After checking all my equipment, I realised that I don't have any speakers with a low enough impedance to get any benefit from the PBTL configuration of these boards.

Thanks
 
#248
jagter5 said:
DUG,

Please cancel my request for 2 x boards and 2 x kits.

After checking all my equipment, I realised that I don't have any speakers with a low enough impedance to get any benefit from the PBTL configuration of these boards.

Thanks
Click to expand...

Do you have 2 more boards for me with chips soldered just like the 2 I have, they might be joined on 1 pcb, I don't care. I do have speakers for PBTL, I just need 2 PBTL boards per speaker I heard today and the DUG's drive hybrid electrostatics better then pbtl hiampmini's 😀
 
#250
randytsuch said:
So I'm hoping to start putting my boards together pretty soon, although I still need to order most of the parts.

For the 3116, wondering if I should put some thermal paste on the thermal pad? First time I've soldered a SM part with a thermal pad like this.

Randy
Click to expand...

I use a flux pen and apply to all the pads I am about to solder but especially where there are multiple, finely spaced pins.

There are some great tutorials around and I strongly recommend checking some out - sorry I can't find the one I found really helpful. This made the biggest difference for me.

You do need thin solder, I got 0.46mm diameter, flux pen as I mentioned, fine solder tip on your iron, fine tweezers and a good magnifying system, especially for these small chips. Oh also good quality solder wick - I used gootwick.

I have been doing quite a bit of SMD soldering over the years and never happy with the results especially on chips like the 3116. But this time I got it right, only made a couple of solder bridges which were easily wicked away.

Found the tutorial http://store.curiousinventor.com/guides/Surface_Mount_Soldering/101
http://store.curiousinventor.com/guides/Surface_Mount_Soldering/Tools/
 
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#253
The 3116 part has a thermal pad on it, and the PWB has a corresponding thermal pad which looks like it wants to mate to it.

We use parts with thermal pads like this at work. It is intended to be installed with a hot air soldering machine and solder paste. But I have neither, so that's not going to happen. 🙂

Maybe I'm being anal, but I'll probably put a very thin amount of thermal goo on the board, can't hurt.

Randy
 
#256
irribeo said:
Do you have 2 more boards for me with chips soldered just like the 2 I have, they might be joined on 1 pcb, I don't care. I do have speakers for PBTL, I just need 2 PBTL boards per speaker I heard today and the DUG's drive hybrid electrostatics better then pbtl hiampmini's 😀
Click to expand...

2 boards or a pair (joined)? Let me know I have both still.

With 2 IC's installed / tested.

I will put you on the list.

Doug
 
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