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Fault in DRV8312-69M-KIT

jiabin su
Prodigy 10 points

Other Parts Discussed in Thread: DRV8312, MOTORWARE

Dear,everyone:
Two weeks ago I was bought a DRV8312EVM board( DRV8312-69M-KIT  RevD) on TI store.everything was fine until to test the Project Lab 5b.

When I load the program and turning it on,the BLDC motor does not spin,and little of smoke have appeared on the board,This happend immediately.
I shut down the power, disconnect the BLDC motor and 28069M ControlCard to detected separately. The F28069M iso-controlcard and BLDC motor is completely undamaged.But the DRV8312EVM board looks a little problem.

I measured the resistance between PVDD and GND,and only 2.89Ohm.This means that some parts of the circuit board is short-circuited.
I want to know what happened, how can I deal with?

  • 0
    TI__Guru** 119680 points
    I would guess that you applied too much voltage on the DRV8312 board, that's pretty much the only way to damage these EVMs.
    I would also check that you loaded the correct project, that you built project 5b from
    C:\ti\motorware\motorware_1_01_00_16\sw\solutions\instaspin_foc\boards\drv8312kit_revD\f28x\f2806xF\projects\ccs5\proj_lab05b

    although I've never seen a board damaged from loading the wrong project