TPS929120EVM: TPS929120EVM is broken

Hi,

Please give us more details about the situation. For example, at that time FS connects to High or low. The situation of the EVM right now, and so on.

And can you explain why they could short together? by person or just unexpected.

The configuration is the same of TPS929120EVM User's Guide(April 2019–Revised December 2019) table 1. 

I would like to trace if the behavior match the describe on datasheet.

Maybe the probe touch them(i use J19) together unexpectedly.

The EVM can't connect after that.

Hi, can you tell me the supply voltage you set? the Error connects to the LDO with a pull-up resistor. And in table 1, FS connects to the supply.
After your description, it seems like you connect the supply(higher than LDO) to LDO, also the supply connects to the Err directly. 

ERR Pin might afford the supply because of the open-drain output.

For LDO part, it seems that it will be some problem.

I use a 12V adapter.

Do you mean TPS929120 maybe functional, that is the EVM may work after change the LDO? 

How can i check if the TPS929120 is functional or the LDO is broken?

actually, the LDO is a part of the chip. if it is broken, the chip will not work. You can give the chips a supply voltage, and test the +5V pin to see the result.

By the way, the CAN chip and the voltage transfer chip are also connected to the +5V. in the datasheet, it can not afford such a 12V.

I am not sure they can work or not.

Sorry for the misunderstanding, it's seems change the chip will improve it, but I can't get any piece of chip due to the long lead time.

Is there service station which will be able to fix it? 

sorry, there is no service about this.