Burned component

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#1
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Hi there,

I have opened a non functiona car ECM unit and I found that the problem is on a burned component. I cannot discriminate clearly the component's label but it seems like :

SIEMENS B575xx (where xx may be 42 as it seems, but it is not clear). As you see at the jpg (I think I have draw it a s it is in the real)

The vomponent has 7 pins and I cannot find the datasheet in order to buy one and repair the unit.
Is there anybody can help and show me the way to find the datasheet or if I could change it with another one similar component from another manufacturer???

Thanks[img][/img]

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Michael.

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Altium Designer

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Try the TLE4202 I think it ispin compatable with the B57542 but both might be obsolete.

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The TLE4202 is obsolete. Infinion lists the TLE5205 as a replacement for the TLE4202. I didn't check if the 5202 is pin compatible. http://www.infineon.com/cms/en/s...

Stealing Proteus doesn't make you an engineer.

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Ok,

TLE4202 seem to be the right package, but I would like to find the datasheet of the B57542 in order to read and compare the specs with the above 2 infineon chips

How did you find the pdf for the B57542???

Thanks,

Michael.

Michael.

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I hate to state the obvious, but WHY did the component get fried? You need to identify the root cause for the failure before you pop in a replacement component.
JC

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JC,

Yes I have almost found the reason because I was wandering too. The external problem is solved, but my problem is to repair the ECU.

Michael

Michael.

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Are you sure repairing it is such a good idea? Won't it affect your waranty on the computer, and any malfunctions caused by it would not be paid out by the insurance people? Just wondering, but I'd check this out if I was you.

There are pointy haired bald people.
Time flies when you have a bad prescaler selected.

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A bit far fetched I think ;)

There's no law that prohibits repairing your own car, at least not in The Netherlands ;) but you are required to keep your car in a technically sound/safe state.

I think it's very very difficult to prove an accident was caused by an engine stall which in turn was caused by an ECU malfunction and that the malfunction was caused by a (allegedly unauthorized) repair by the current owner. The consequences of an engine stall are more up to the driver I think ;)

And likely there's no warranty on the ECU anyway, because if there still was a warranty the OP would have used it ;)