TCAN4551RGYRQ1

Overview

The TCAN4551RGYRQ1 is an automotive-grade System Basis Chip (SBC) from Texas Instruments, featuring an integrated CAN FD controller and transceiver. It supports data rates up to 5 Mbps for CAN FD and complies with ISO 11898-1:2015 and ISO 11898-2:2016 standards. The device interfaces with system processors via a Serial Peripheral Interface (SPI) operating at clock speeds up to 18 MHz. Packaged in a 20-VQFN (3.5x4.5 mm) exposed pad format, it operates within a temperature range of -40°C to 125°C and holds AEC-Q100 qualification.

Feature Summary

• Integrated CAN FD controller and transceiver supporting up to 5 Mbps data rates
• Compliant with ISO 11898-1:2015 and ISO 11898-2:2016 specifications
• SPI interface with clock speeds up to 18 MHz
• AEC-Q100 qualified for automotive applications

Applications

• Automotive body electronics
• Industrial automation systems
• Building automation controllers

Procurement Notes

Verify the specific ordering suffix RGYRQ1 corresponds to the Tape & Reel packaging configuration. Confirm that the 20-VQFN package includes wettable flank capabilities for reliable inspection. Ensure the component meets the required AEC-Q100 grade specifications for the target automotive application environment.

Selection Notes

Select this component when an integrated solution combining CAN FD control and physical layer transmission is required. It is suitable for designs needing SPI connectivity to a host microcontroller. Consider the 20-VQFN package dimensions and thermal requirements for the PCB layout. Verify compatibility with the system's voltage levels and operating temperature range.

Part Context

This part belongs to the TCAN45xx family of CAN FD controllers with integrated transceivers. It serves as a bridge between high-speed CAN networks and lower-speed system processors. The device simplifies design by combining logic and transceiver functions into a single compact package, reducing board space and component count compared to discrete solutions.

Replacement Considerations

Check for direct pin-to-pin replacements within the TCAN45xx series, such as the TCAN4550 or TCAN4551 variants without the Q1 suffix if automotive qualification is not strictly required. Verify that any substitute maintains the same SPI interface protocol and CAN FD compliance standards.