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Altera_Forum
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12 years ago

MAXV maximum current per bank

Hi,

What's the maximum current per bank in 5M570ZT144C?

I need to drive 56 leds with 5mA (280mA). Is it possible?

VDDIO = 3V3

Thanks.

Bruno Bernardi

5 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    There's no explicite specification in the datasheet, but I think you can refer to the MAX II related specification in AN286.

  • Altera_Forum's avatar
    Altera_Forum
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    --- Quote Start ---

    There's no explicite specification in the datasheet, but I think you can refer to the MAX II related specification in AN286.

    --- Quote End ---

    Thanks for the reply.

    AN286:"Although a single pin from a MAX 7000B device can sink up to 50 mA of DC current, each GNDIO group can concurrently sink up to 200 mA"

    Does not exist similar specification for MAXV family?
  • Altera_Forum's avatar
    Altera_Forum
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    --- Quote Start ---

    I think you can refer to the MAX II related specification in AN286

    --- Quote End ---

    Didn't you find it? It's 170 mA if I remember right.
  • Altera_Forum's avatar
    Altera_Forum
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    --- Quote Start ---

    Didn't you find it? It's 170 mA if I remember right.

    --- Quote End ---

    The AN286 is not about the MAX V only MAX and MAX II.

    170mA per pin (GND) or bank?

    If 170mA per pin. Would be 850mA per bank?

    according to AN286:

    "For example, the EPM240 device has six GNDIO pads, which provide six I/O regions

    that can sink up to 130 mΑ. If you need to sink 15 mA for the outputs, you can have

    eight outputs per region. With the six regions of I/O between GNDIO pads, there are

    48 possible outputs, each sinking 15 mA."
  • Altera_Forum's avatar
    Altera_Forum
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    I think it's pretty clear if you review the MAX II data sheet and pin-out lists. I assume that MAX V has about the same current capability, but your requirements are distinctly below the discussed maximum ratings.