topic Re: TJA1057GTK/3Z EMC issue in Digital Signal Controllers

TJA1057GTK/3Z EMC issue

Boris_Bloxsberg — Thu, 17 Feb 2022 08:04:30 GMT

Hi,

I've got an EMC issue with the TJA1057GTK/3Z. The CAN transceiver will sometimes be destroyed at EMC test when I apply 100V/m in a GTEM cell.

Does someone know this issue? Does someone have a workaround?

Regards.

Re: TJA1057GTK/3Z EMC issue

guoweisun — Fri, 18 Feb 2022 00:56:11 GMT

Please give more information for your said ---destroyed at EMC test when I apply 100V/m in a GTEM cell.

How to destroy it? the part damaged? what does mean about 100V/m in GTEM cell?

Re: TJA1057GTK/3Z EMC issue

Boris_Bloxsberg — Fri, 18 Feb 2022 07:13:06 GMT

Hi,

when I apply 100 Volts pre meter field strength to the transceiver, the transceiver will be destroyed. That means the transceiver does not transmit any can messages and the current consumption of the transceiver is higher than normal.

If I replace the transceiver with a new one. Everything is fine and the circuit is working

Regards.

Re: TJA1057GTK/3Z EMC issue

guoweisun — Sat, 19 Feb 2022 03:06:26 GMT

Please read attached file and modify circuit for enhance the EMC performance.