SLVUDV8 May 2026
The TCAN4572 EVM is populated with one 120Ω resistor selectable via jumper, between CANH and CANL, and the 120Ω split termination (two 60Ω resistors in series) including the split capacitor. When using only split termination, the EVM is used as a terminated end of a bus. For electrical measurements to represent the total loading of the bus, use both the split termination and the 120Ω resistor in parallel to give the standard 60Ω load for parametric measurement.
| Termination Configuration | Termination Jumpers | Split Termination Resistors | Split Termination Capacitor | |||
|---|---|---|---|---|---|---|
| Jumper | J1 | J2 | J3 | R1 | R2 | C5 |
| No termination | Open | Open | Open | Not available | Not available | Not available |
| 120Ω standard termination | Open | Open | Shorted | |||
| 60Ω load | Shorted | Shorted | Shorted | |||
| Split termination (common mode stabilization) | Shorted | Shorted | open | 60Ω | 60Ω | 4.7nF |
The EVM also has footprints for various protection schemes to enhance robustness for extreme system-level EMC requirements.
| Configuration | Footprint Reference | Use Case | Population and Description |
|---|---|---|---|
| Series resistors or common mode choke (CMC) | R7/R8 | Connects the CAN transceiver to the CAN bus | R7 and R8 populated with 0Ω (default population) |
| Series resistance protection | Can be populated with MELF resistor as necessary for harsh EMC environment. | ||
| L1 (DNI) | CMC (bus filter) | Can be populated with CMC to filter noise (necessary for harsh EMC environment). Remove R7 and R8 to populate L1. | |
| Bus filtering caps transient protection | C8/C9 (DNI) | Bus filter | Can be populated with filter capacitors for harsh EMC environment. |
| D1(DNI) | Transient and ESD protection | Can be populated with TVS diode to add extra protection for system level transients and ESD |