TCAN1043A-Q1

Part: TCAN1043AEVM — Texas Instruments

Type: CAN FD Transceiver Evaluation Module

Description: Evaluation module for the TCAN1043A-Q1 fault-protected automotive CAN FD transceiver supporting data rates up to 8 Mbps with 4.5–40 V battery supply support.

Operating Conditions:

• Supply voltage (VSUP): 4.5 V to 40 V
• Supply voltage (VCC): 4.5 V to 5.5 V
• I/O supply voltage (VIO): 1.7 V to 5.5 V

Key Specs:

• Classic CAN data rate: up to 1 Mbps
• CAN FD timing support: 2 Mbps and 5 Mbps
• CAN FD messaging support: up to 8 Mbps
• Bus termination: two selectable 120-Ω resistors (parallel 60-Ω load)
• Operating modes: Normal, Standby, Silent, Sleep, and Go-to-sleep

Features:

• Supports ISO 11898-2:2016 standard requirements
• Inhibit (INH) high-voltage output for system power management control
• Local wake-up (LWU) support via bi-directional threshold WAKE input terminal
• Fault and diagnostic reporting via multiplexed nFAULT output pin
• Integrated 4.7-kΩ pullup resistor on nSTB
• Footprints for optional split termination, TVS protection diodes, and common mode choke

Applications:

• Automotive
• Transportation
• Industrial
• Telecom
• 12-V and 24-V applications

Package:

• SOT package (TCAN1043A-Q1 device)

The TCAN1043AEVM is populated with two 120-Ω power resistors selectable via jumpers between CANH and CANL. When using one resistor, the EVM is used as a terminated end of a bus. For electrical measurements to represent the total loading of the bus, use both 120-Ω resistors in parallel to give the standard 60-Ω load for parametric measurement. The EVM also has footprints for split termination, if needed for the application. Table 2-4 summarizes how to use these termination options. If using split termination, match the resistors. Calculate the CM filter frequency using: f C = 1 / (2πRC). Normally, the split capacitance is in the range of 4.7 nF to 100 nF. Keep in mind, this is the CM filter frequency, not a differential filter that impacts the differential CAN signal directly.

Table 2-4. Bus Termination Configuration

The EVM also has footprints for various protection schemes to enhance robustness for extreme system-level EMC requirements. Table 2-5 summarizes these options.

Table 2-5. Protection and Filtering Configuration

The TCAN1043A-Q1 is designed to support CAN applications where ultra-low-power requirements exist. The applications include, but are not limited to: (≤ 1 Mbps), CAN FD applications up to 8 Mbps:

• Classic CAN:
• -Supports CAN with data rates up to 1 Mbps
• CAN FD:
• -Supports CAN FD timing requirements at 2 Mbps
• -Supports CAN FD timing requirements at 5 Mbps
• -Supports CAN FD messaging at 8 Mbps
• 12-V and 24-V applications
• Automotive
• Transportation
• Industrial
• Telecom