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Altera_Forum's avatar
Altera_Forum
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10 years ago

19V power for Arria V GX FPGA Development Board

The user manual for the Arria V GX FPGA Development Board states that the input voltage on the laptop style DC power input must be in the rage o 14 V to 20 V. However, Figure 2-11 of that document shows that the input connector feeds a LTC3855 switching regulator. That regulator can accept an input as high as 38 V. http://www.linear.com/product/ltc3855

Is there any reason that I cannot power the board with 28 V?

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    10 years ago

    It's possible there are input capacitors on the board not rated for 28V. I'd stick with the user's manual recommendation, you should be able to buy a 15V power module on-line for a few bucks.

  • Altera_Forum's avatar
    Altera_Forum
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    10 years ago

    Agree with gj_leeson, you should stick to the recommended input voltage specs to avoid accidentally burn the board.

  • Altera_Forum's avatar
    Altera_Forum
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    10 years ago

    --- Quote Start ---

    It's possible there are input capacitors on the board not rated for 28V. I'd stick with the user's manual recommendation, you should be able to buy a 15V power module on-line for a few bucks.

    --- Quote End ---

    Yes, I understand that this possible. Can someone at Altera who has access to the Bill of Materials and schematic give me a definitive answer?

    Even better, can I get the schematic and bill of materials?