4 Experimental Results on TI’s TCAN1462 Device

To showcase the ringing-suppression functionality of the Texas Instruments (TI) eight-pin TCAN1462 CAN SIC transceiver, Texas Instruments conducted an experiment with the following setup:

• Two-node point-to-point communication, where node 1 is the TCAN1462 and node 2 is the TCAN1044A, a regular CAN-FD transceiver, as shown in Figure 4-1. The ringing network (specified by CiA 601-4) emulating a complex star topology is connected across the CAN bus terminals. As the waveforms in Figure 4-2 and Figure 4-3 show, the CAN bus and RXD signals look clean when the TCAN1462 is driving. But when the TCAN1044A is driving, there is considerable ringing on the bus and RXD glitches.

The hugely negative-going V_OD is not a problem and there is no overshoot on V_OD, resulting in clean RXD.