Texas Instruments has introduced the TCAN4550 CAN FD stand-alone controller integrating a transceiver. It is qualified for bit-rates up to 5 Mbit/s.
The TCAN4550 provides an interface between the CAN network and the host controller through a serial peripheral interface (18-MHz SPI). It supports the Classical CAN and the CAN FD data link layer. Additionally, the chip features CAN FD transceiver functionality: differential transmit capability to the bus lines and differential receive capability from the bus lines. The product supports wake-up functionality via local wake-up (LWU) and bus wake-up using the Wake-up Pattern (WUP) as specified in ISO 11898-2:2016. The integrated circuitry includes protection features including a failsafe mode, an internal dominant state timeout, a wide bus operating range, and a time-out watchdog as examples. The CAN FD core is based on Bosch’s M_CAN (version 22.214.171.124).
The chip comes in a 20-pin VQFN package measuring 4,5 mm by 3,5 mm. It is intended for automotive applications as well as industrial and building automation. It features a ±58-V bus-fault detection and ±12-V common-mode. When not powered the logic and bus pins have high impedances.
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