TCAN4550RGYT

Overview

The TCAN4550RGYT is an automotive system basis chip featuring an integrated CAN FD controller and transceiver. It supports data rates up to 5 Mbps and meets ISO11898-1:2015 and ISO11898-2:2016 specifications. The device interfaces with system processors via SPI, supporting classic CAN and CAN FD. It operates within a temperature range of -40°C to 125°C and includes protection features such as ±42 V bus fault protection and fail-safe mode.

Feature Summary

• Integrated CAN FD controller and transceiver supporting up to 5 Mbps
• SPI interface with up to 18 MHz clock speed for processor communication
• ISO11898-1:2015 and ISO11898-2:2016 compliant
• Wide operating ranges including ±42 V bus fault protection

Applications

• Automation
• Building automation
• Factory automation and controls

Procurement Notes

Verify the package type matches the required application, specifically the 20-VQFN (3.5x4.5) exposed pad configuration. Confirm surface mount compatibility and wettable flank requirements for assembly processes. Ensure the ordering suffix aligns with the desired tape and reel or cut tape packaging format for inventory handling.

Selection Notes

Select this component for applications requiring integrated CAN FD functionality with high-speed SPI connectivity. Consider the 3.3 V to 5 V logic support for microprocessor interfacing. Evaluate the need for wake-up capabilities via local wake-up or bus-wake patterns when designing the system architecture.

Part Context

This part belongs to the TCAN4x5x family of CAN FD controllers from Texas Instruments. It combines the M_CAN IP core with a high-speed transceiver in a single compact package. The device is designed to reduce board space and simplify design complexity for automotive and industrial systems.

Replacement Considerations

Check for pin-to-pin compatible alternatives within the TCAN4x5x series. Verify that any substitute maintains the same SPI interface timing and CAN FD protocol compliance. Ensure the replacement supports the required operating temperature range and voltage levels.