SLLA581A April   2022  – October 2025 TCAN1462-Q1 , TCAN1463-Q1 , TCAN1472-Q1 , TCAN1473-Q1 , TCAN1476-Q1 , TCAN1575-Q1 , TCAN1576-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1What is SIC?
  5. 2The Limitations of Classical CAN and Regular CAN FD
  6. 3How CAN SIC Reduces Bus Ringing
  7. 4Experimental Results on TI’s TCAN1462 Device
  8. 5TI’s CAN SIC Devices
  9. 6Benefits of CAN SIC
  10. 7Revision History

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.
TCAN1462X Network with Two Node and Ringing Circuit Figure 4-1 Network with Two Node and Ringing Circuit
TCAN1462X Waveforms with CAN FD Driving the Network Figure 4-2 Waveforms with CAN FD Driving the Network
TCAN1462X Waveforms with CAN SIC Driving the Network Figure 4-3 Waveforms with CAN SIC Driving the Network

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