DCA1000EVM: draws high current, gets hot

Miklos Szabo

Part Number: DCA1000EVM
Other Parts Discussed in Thread: AWR2944EVM

I had been using a DCA1000EVM board for some time and now it seems to have a HW problem. When using a laboratory power supply, instead of <3A @ 5V, it draws >4A and the Lattice LFE5UM-85F IC gets very hot quickly. With the originally used 5V, 3A power supply, the 5V led is flashing. Is my interpretation correct that the warranty period was 90 days? Do you think that there is any chance of repairing the device? If yes, what could we try?

8 months ago

0 Cesar 7 months ago

TI__Guru*** 141174 points

Hi,

What sensor board are you trying to use with DCA1000?

Are you able to capture raw data with the lab power supply?

Regarding warranty you will need to check with the vendor where you purchased the board from

Thank you

Cesar

0 Miklos Szabo 7 months ago in reply to Cesar

Prodigy 20 points

I use it with an AWR2944EVM. It does not capture data with the laboratory power supply. When I try to connect to the device in mmWave Studio, I get the error message that UDP write failed.

0 Cesar 7 months ago in reply to Miklos Szabo

TI__Guru*** 141174 points

Thank you,

Yes it seems that there are some issues with the board. Unfortunately our team does not have the knowledge to repair the board.

You would need to check the warranty and contact the vendor

thank you

Cesar

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DCA1000EVM: draws high current, gets hot