Need burnt ic details

I agree with my friend, @jancumps. Try taking a much zoomed-in photo of just the two ICs and make sure the lighting and angle are right so whatever text is there can be read, On your burt IC, I can see there's some partially readable numbers, but I can't make them out as the zoom is too small and angle or lighting not very good. And forget the back side.

I also need to know what this board came out of and what this board's function is. Please e specific with part numbers, etc. The more info I have, the more I can help you. Right now, the info is pretty sparse.

It's a slit lamp board(eye testing equipment).

Visible ic numbers are:-

___BH(upper side) 

C7XJ G4 (down side) 

2nd ic is

9241(upper side) 

EZMQ126 (DOWN SIDE )

I spent some time researching this and didn't find much. It seems these ICs are from the 1990s and many of the part numbers could be obsoleted. I agree with @dougw. I have little doubt that it's a dc-dc converter IC, the trouble is that there's a gazillion of them and how to narrow it down. You don't necessarily have to replace it with the identical part number as there are likely second source part numbers. One way might be if you have documentation from the original manufacturer. Try doing a Google search for the manufacturer's name plus the model number of the product it came out of. You might get lucky and find a manual with complete schematics and BOM. 

The only problem with Doug's suggestion is that there could be a wide range of possible part numbers based on max current and max voltage. This may be hard to determine without careful measurements or reverse engineering by tracing. The power source that drives this is probably off this board. If you can determine the input voltage and the output voltage, the rest is fairly easy. For the output voltage, if this converter drives the lamp, then the lamp will have a voltage rating on it. It's likely a buck (step down) converter, but it could also be a boost (step up) type. You can tell which by tracing the path of the power components like the IC and the inductor and commutation diode. It's also not clear to me how the larger, ST brand IC fits in with the 8-pin SOIC that's burnt. 

I tried looking up the ST IC part number, but couldn't find it. It may be obsolete. If you look hard enough, you may be able to find it. 

Thanks for your time. Sir. 

Thanks for your time. Sir.