SLLU321 July   2022

 

  1.   TCAN1043AEVM Evaluation Module User's Guide
  2.   Trademarks
  3. 1Introduction
    1. 1.1 TCAN1043A-Q1 EVM
    2. 1.2 Applications
  4. 2Test Setup and Results
    1. 2.1 Overview and Basic Operation Settings
      1. 2.1.1 Jumper Description
      2. 2.1.2 Power Supply Inputs VSUP, VCC, and VIO
      3. 2.1.3 TXD Input
      4. 2.1.4 RXD Output
      5. 2.1.5 nSTB and EN Mode Control
      6. 2.1.6 Inhibit (INH) High Voltage Output
      7. 2.1.7 CANH and CANL Bus Pins
      8. 2.1.8 WAKE Input
      9. 2.1.9 nFAULT Output
    2. 2.2 Using CAN Bus Load, Terminations, and Protection Features
    3. 2.3 Using Customer-Installable I/O Options for Current Limiting, Pull Up and Pull Down, Noise Filtering
  5. 3EVM Setup and Basic Usage
    1. 3.1 Equipment
    2. 3.2 TCAN1043A-Q1 EVM Setup
    3. 3.3 TCAN1043A-Q1 Normal Operation 500 kbps Test Results
  6. 4Schematic and Bill of Materials
    1. 4.1 TCAN1043A-Q1 EVM Schematic
    2. 4.2 TCAN1043AEVM Bill Of Materials

3.2 TCAN1043A-Q1 EVM Setup

Configure the TCAN1043A-Q1 EVM for normal operation by installing shunts on the EVM as described in Table 3-1.

Table 3-1 Basic Operation Jumper Settings
Jumper Shunt
JMP3 Installed – implements 120-Ω resistor between CANH and CANL
JMP5 Installed – implements 120-Ω resistor between CANH and CANL
JMP6 Installed – shorts VCC and VIO together
Use P2 to drive VIO independently from VCC

Connect the power supplies to the EVM using the banana connecter P1, P2, P3, and P4. If banana cables are unavailable, use test points TP11, TP12, TP13, TP14, TP15, and TP16 instead.

  • Set P1 or TP11 to 5 V at 100 mA
  • Set P2 or TP to 1.8 V or 3.3 V or 5 V at 100 mA for the IO buffer voltage
  • Set P3 equal to GND
  • Set P4 or TP13 to 12.5 V at 100 mA

For more detailed information, see the schematic reference for power in Figure 4-1.

Connect the EVM to the CAN bus for network evaluation. TXD and RXD can be jumper connected to the CAN controller through JMP2 position 1 and position 3, respectively. If evaluating the TCAN1043A-Q1 without a CAN network, connect a function generator to JMP2 position 1 with the desired data rate. The generator should be set to provide a 0 V to 5 V TTL square wave into the high impedance input TXD. Connect an oscilloscope with high-impedance probes or high-impedance input to the CAN bus line CANH and CANL. Use a third channel on the oscilloscope to monitor RXD.