Pavel,
All the reports on blown TDA2822's thus far in this form had a logo of "WX" on them.
Can you describe the markings on your chips?
Thanks for the report!
Jerry
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On Fri, Mar 2, 2018 at 10:22 am, Pavel Milanes Costa wrote:
I was some time in the past in almost daily touch with the infamous TDA2822D/M as per my experience they do not like to go beyond 8V or you get it to much heat and one of the channels will fail or you will have it's brains all over the place... like you are seeing here (no plugging/unplugging in my application)
The circuits I fixed had 100uF on the outputs, so I doubt that lowering the 470uF output filter do much to mitigate this.
In vote to point that this IC are clones of lower quality and does not like to go over 8V or they to strange things like this.
Cheers Pavel CO7WT.
