Electronics > Beginners
Zynq Xilinx overheating
AjayS:
I was working with a Zynq Xilinx FPGA running at 3.3V. For some reason, I did not realized that my power supply was shorted and I stopped getting the output. I tried checking by taping my finger on the FPGA and it nearly burnt my finger. I have no idea why it was too hot. I immediately turned the main power supply off. I am still figuring out why it was shorted but is the FPGA ok? I did no see any smoke coming out from it. Once I figured out the short with the power, I will plug the power back in. Also, how long do we have (if something is heating up) to turn the power off and the chip is still safe?
wraper:
--- Quote from: AjayS on May 31, 2019, 04:13:04 pm ---Also, how long do we have (if something is heating up) to turn the power off and the chip is still safe?
--- End quote ---
There is no predetermined time. If something goes wrong, chips may be bust in milliseconds or survive for hours.
0culus:
Not an FPGA, but I recently had an LM386 survive quite a bit of trying to find where the output was shorting to ground. Like wraper says, it might blow instantly or survive for hours.
Fred27:
Getting hot is not a good sign, but you might be lucky.
mikerj:
--- Quote from: AjayS on May 31, 2019, 04:13:04 pm ---I was working with a Zynq Xilinx FPGA running at 3.3V. For some reason, I did not realized that my power supply was shorted and I stopped getting the output. I tried checking by taping my finger on the FPGA and it nearly burnt my finger. I have no idea why it was too hot.
--- End quote ---
Do you not think the two issues are very likely related? Something has probably killed the Zynq which then started drawing a very high current from your supply.
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