Forum Discussion

leofur's avatar
leofur
Icon for New Contributor rankNew Contributor
1 year ago

10M02DCV36I7G High current from VCCIO supply

Hi,

I'm using 10M02DCV36I7G with the following voltages:

VCCA2,VCCA3 - 2.5V

VCC - 1.2V

VCCIO1_2_8, VCCIO 3_5_6 - 3.3V

When turning on the voltages, even before programming the device, I see 500 mA current draw from 3.3V supply and regulators voltage drops to 2.97V.

The voltages of the 2.5V and 1.2V regulators increase to 2.7 and 1.3 V. So i assume the current from 3.3 supply goes there. When disassembling the FPGA, there is no current draw.

When changing VCCIO to 2.5V , current consumption is lower, but still high (about 80mA).

With both configurations I was able to program the FPGA, it didn't change the current consumption.

Thanks,

Leonid

Board Debug
Configuration
Generic Io
Power

2 Replies

  • AqidAyman_Altera's avatar
    AqidAyman_Altera
    Icon for Regular Contributor rankRegular Contributor
    1 year ago

    Hi Leonid,


    May I know how you connect all the voltage regulator to the power pin?

    Can you share the schematic?


    Regards,

    Aqid


  • AqidAyman_Altera's avatar
    AqidAyman_Altera
    Icon for Regular Contributor rankRegular Contributor
    1 year ago

    As we do not receive any response from you on the previous question that we have provided. Please login to ‘https://supporttickets.intel.com/s/?language=en_US’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.