TCAN4550RGYRQ1

The TCAN4550RGYRQ1 from Texas Instruments is an advanced automotive system basis chip designed for Controller Area Network (CAN) communication. It integrates a CAN FD controller that supports both ISO 11898-1:2015 and Bosch M_CAN Revision 3.2.1.1 standards, along with a CAN FD transceiver meeting ISO 11898-2:2016 requirements. This device enables CAN FD data rates up to 8 Mbps, with backward compatibility for Classic CAN.

Key electrical features include wide operating ranges on the CAN bus with ±58 V bus fault protection and ±12 V common mode voltage. It incorporates a 5 V low-dropout (LDO) voltage regulator that supplies the CAN transceiver and can provide up to 70 mA for external devices. The chip also includes an integrated watchdog timer with timeout functionality and supports low-power sleep mode. Logic support for microprocessors is available for 3.3 V to 5 V.

Packaged in a 20-VQFN (3.5x4.5 mm) format, the TCAN4550RGYRQ1 is qualified for automotive applications under AEC-Q100, with a temperature grade of -40°C to 125°C (Temperature Grade 1). It offers glitch-free power-up and power-down operation, with bus and logic terminals designed to be high impedance when unpowered, minimizing load on the operating bus or application.