Re: TDA2822 ill treatment test! Photo of blown TDA

Jerry Gaffke
 

So two reports of "WX" TDA2822M's going up in smoke.
I'm very very curious if all blown chips turn out to be WX branded,
and none are FCI.
 
There is a website for  WX:  http://www.wx-ic.com/Cn/Product_Detail_Images.aspx?id=105303&UserInfo_ID=216432&CorpProductImages_ID=106897
though I can't find a datasheet.
Probably a 3'rd tier clone manufacturer.

May need either a chip from a "good" manufacturer whoever that might be,
or a regulator to make it a max of 6v or so into the TDA2822.

Jerry, KE7ER



On Fri, Mar 2, 2018 at 06:59 am, Michael Aiello wrote:
Mine failed immediately after apply power to the board after wiring up the power connector. Nothing else was connected. There was a loud crack, and a puff of magic smoke, then silence.

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