TCAN1145-Q1: question about TCAN1145-Q1

Part Number: TCAN1145-Q1

Tool/software:

Hello:

Will TCAN1145 enter sleep mode after bus silence?

The customer found that canTRCV will sleep on its own. When there is no message on the bus, the switch power supply used by the customer does not have undervoltage sleep and no sleep command is set

The phenomenon is that after setting the can normal in boot, there is no data on the bus. After a while, the board lost power and INH is currently low, so it did not actively set sleep mode

Please take a look at the issues, thank you!!!

   

  • Hi Jimmy,

    Yes, the transceiver can enter sleep mode when the bus being idle, this is a mechanism called SWE timer.

    If you don't the device enter sleep mode in this scenario, you can set SWE_DIS = 1 to disable the SWE timer. 

    Regards,

    Sean