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TPS25831Q1EVM-062: TPS25831Q1EVM-062 was broken with the following step

K.Yaita
Guru 29710 points
Part Number: TPS25831Q1EVM-062
Other Parts Discussed in Thread: TPS25831-Q1

Hi Team,

My customer tried evaluating TPS25831Q1EVM-062 however the EVM was broken with the following step.
1) connect J2 to power supply (24V)
2) connect the load (2Ω) to J1 connector
3) Install a shunt on J4, then the EVM was broken. VIN and GND are shorted in TPS25831-Q1 device..



My customer bought four EVMs however three of these were broken under same condition. 
Dou you know why the EVM was broken?

Best Regards,
Yaita

  • 0
    TI__Genius 12700 points

    Hi Yaita,

    I've assigned this issue to the relevant expert who will get back to you shortly.

    Thank you,

    Hari

  • 0
    TI__Expert 8420 points

    Hi Yaita-san,

    It is very strange customer broken the EVM, Have we confirm the input + and - connect correct ?

    I suggest customer connect the Input to 6V but don't add the loading first , then add the Rd in CC1/2( add the shunt ) to check whether have the 5V output .

    in the end add the loading . 

    BTW, is that use the E-load for the test? If E-load pls. choose the CC mode for evaluation.