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Board Temperature

adriang

Is the ZUBoard supposed to run so hot? The left half (looking into face with Zynq and ethernet pointing down) of the board is really hot to touch (I'm using the recommended 45W adapter). Never handled a board where even the PCB gets this hot. U13, U18, U25 and U26 are the heat sources. Is this normal?  SysMon for both FPGA and ARM report around 50C. Thanks! 

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    Hi Adriang,

    This is normal/expected, the IC's you are refering to are the TDK uPOL switchers which are converting 15V to the various supply voltages for the IO and SOC causing thermal loss/heat generation. The thermal solution on the ZUBoard is minimal to reduce cost of the platform and only covers the SoC. Its intended use is bench top development platform only, and is not recommended for any high heat environments.

    The only way to get away from this heat would be to engineer a custom/expensive heatsink that directly touches these ICs to dissipate heat. Check out the Ultra96V2 passive heatsink for an example of this. That or go with an active solution, but that gets very noisy!

    This board was thoroughly tested in a desktop environment (23C) with a very intensive SoC image and shouldn't have any issues. It will get hot to the touch but will remain within the Junction temperature requirements of the SOC and power supplies for 99% of use cases. If you still have concern, i'd recommend a small fan to push air flow across the top of it, this would greatly reduce the heat.

    -Josh

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  • 0

    Hi Adriang,

    This is normal/expected, the IC's you are refering to are the TDK uPOL switchers which are converting 15V to the various supply voltages for the IO and SOC causing thermal loss/heat generation. The thermal solution on the ZUBoard is minimal to reduce cost of the platform and only covers the SoC. Its intended use is bench top development platform only, and is not recommended for any high heat environments.

    The only way to get away from this heat would be to engineer a custom/expensive heatsink that directly touches these ICs to dissipate heat. Check out the Ultra96V2 passive heatsink for an example of this. That or go with an active solution, but that gets very noisy!

    This board was thoroughly tested in a desktop environment (23C) with a very intensive SoC image and shouldn't have any issues. It will get hot to the touch but will remain within the Junction temperature requirements of the SOC and power supplies for 99% of use cases. If you still have concern, i'd recommend a small fan to push air flow across the top of it, this would greatly reduce the heat.

    -Josh

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