Help identifying an integrated circuit

Discussion in 'General Electronics Chat' started by _Maxi, Oct 26, 2009.

  1. _Maxi

    Thread Starter New Member

    Oct 21, 2009
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    0
    Hello everyone.

    I need help trying to figure out which integrated circuit is the amplifier of one board. It's burned and I have to change it, but its indication was filed, so I don't know which is. It has 15 terminals or pins. The board says on a corner WS-MSA2050.

    Pictures:

    [​IMG]

    [​IMG]

    Thanks!!
     
  2. StayatHomeElectronics

    Well-Known Member

    Sep 25, 2008
    864
    40
    In the bottom picture, the device on the top edge of the board in the middle could be the amplifier. It appears to have 15 pins, however the picture is not clear. I have seen audio amplifiers in that package before...

    What numbers, if any, are written on the front of the device? That will be the best indication. Also, there is only one other chip (IC) on the board, what part number is written on it?

    Is that the information you were looking for or is there somethings else?
     
  3. SgtWookie

    Expert

    Jul 17, 2007
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    I'm going to guess that it's a stereo amplifier that a friend of yours uses on their boat or motorcycle, and it's supposed to have 25W per channel output.

    The only audio amp IC that I know of offhand in a 15 pin package with 25W per channel output powered by a single supply is the STK4432.

    [eta]
    Take a look at the attached datasheet.

    It has a suggested layout for a stereo amplifier. Printing that portion of the datasheet and comparing it to your existing amplifier may help a good deal to validate whether that is the amp IC used in your amplifier.
     
    Last edited: Oct 26, 2009
  4. StayatHomeElectronics

    Well-Known Member

    Sep 25, 2008
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    I just happened to run across one from STMicro, the TDA7374, last week. Someone brought me an old BOSE Wave radio that I openned up in the hopes of fixing it.
     
  5. SgtWookie

    Expert

    Jul 17, 2007
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    Last edited: Oct 26, 2009
  6. _Maxi

    Thread Starter New Member

    Oct 21, 2009
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    0
    It's the 15 pinned IC. That's the one I'm trying to recognize.
    Yes, it's for someone who uses a motorcycle. That stk has a sil package. The one on the board isn't in that package.
    It could be... it's the same package.

    Thanks, I'll tell this guy what you told me. Feel free to keep suggesting info if you want.
     
  7. _Maxi

    Thread Starter New Member

    Oct 21, 2009
    4
    0
    Apparently it was a TDA7374B, thank you all :)
     
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