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AGrig15's avatar
AGrig15
Icon for New Contributor rankNew Contributor
6 years ago

FPGA is heated like an iron

Hello! Faced a small problem related to the FPGA family Cyclone IV E EP4CE55 in the BGA-484 case. 1 of 2 FPGAs on the same boards and with the same project is heated like an iron. I power the FPGA wi...
Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi,

Yup, looks like a power short condition as 3.3V power rail now become 2.9V only

  • If you have rule out everything on your board and leave with FPGA only then there is still 2 possibility
  • Either FPGA internal already damaged/shorted or the bad soldering is causing the short on FPGA balls. You can use X-ray machine to check for solder ball short condition.

Ultimately you still need to fix it as the situation is going to get worsen and eventually kill your board.

  • Even if you board still alive the voltage drop is going to affect your design functionality as well as it's dropping beyond normal operating range.

Thanks.

Regards,

dlim