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TCAN1145-Q1: what's the driving ability(in current) of TCAN1145-Q1?

Yuan Tan63
Expert 3280 points
Part Number: TCAN1145-Q1

Hi,

As describe in title, and I found the table as below from datasheet:

how to understand that with driving ability?

thank you!

B&R

Yuan

  • 0
    TI__Guru 53555 points

    Hi Yuan,

    The CAN driver in this device has an internal current limit on CANH and CANL. This protects the device from driving overcurrent in the case that there is a bus fault causing CANH and CANL to be shorted together or to some other supply rail (Vsup or GND). During the nominal case, the CAN driver will output a lower current proportional to the differential load on the CAN bus in order to create the differential voltage between CANH and CANL. The typical differential load of a CAN transceiver is two 120-ohm terminations in parallel (60-ohms total). This device is characterised over differential loads from 45-ohms to 70-ohms. 

    Let me know if this is the information you were looking for and if you have any more questions.

    Regards,
    Eric Schott