2x3mm 12-pin switch identification

Jacek Renkas

Prodigy 130 points

Hello,

I'm looking for help in identifying a damaged IC which is probably an Analog Switch or perhaps a set of transistors.

It is in a not so typical package. Package dimensions are 2mm x 3mm, there are 12 pins. Have a look at the pictures.

The top marking is:

A303

Does TI make this kind of package? Or does anyone know what it is and who makes this?

I would really appreciate any help. It is in a very expensive automotive BOSCH diagnostic tester that we have in our company and I cannot find a replacement.

Kind regards, Jacek

over 5 years ago

0 LeonardEllis over 5 years ago

TI__Guru 71526 points

Hello Jacek,

The part you show does not seem to be a TI device. First, using the Part Marking Lookup Tool: http://www.ti.com/packaging/docs/partlookup.tsp#divline , A303 does not match any devices.

Next, this is a QFN package, using the Find TI Packages Tool: http://www.ti.com/packaging/docs/searchtipackages.tsp?packageName=QFN , there are not any 2mmx3mm packages. The closest would be the RUE package: http://www.ti.com/lit/ml/mpqf214b/mpqf214b.pdf , but the package dimensions are different.

And the only part using that package is an LED Driver:

http://www.ti.com/packaging/docs/searchproductbypackage.tsp?orderablePartNumber=&packageDesignator=rue&pinCount=12&results=results#resultspage

Suggest you contact BOSCH and ask for a schematic. Good luck in your search.

Regards,

~Leonard

Switches & multiplexers

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2x3mm 12-pin switch identification