On Thu, Dec 11, 2003 at 02:19:19PM -0800, REDE enlightened us thusly
> Hi everybody,
>
> I have an 30 009 IC from SIEMENS that was made for Bosch. It is used
> in a motronic vehicle ECU. The casing is a bent, staggered 7-Lead
> TO-220 (T). Other data written on it : 020N S11 BE017 449
> probably production numbers...
>
> Any ideas?
It's somebody else's chip with a batch number. Often this is done when
they are tested. This is sometimes done to tighten up on a spec, eg 2%
regulation instead of 5% on a psu chip.
There are not that many 7 legged TO220 chips. I'm presuming it is a
switched mode power supply or motor driver of some sort. Trace the pins
to have an idea what it does, and give up after a few hours before you
waste your life on it.
A search for "to220-7" throws up the first three results from Infineon.
I wonder if they are anything to do with Siemens? :-))
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
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