3 Product Description

The TCAN4550-Q1 is a CAN FD controller with an integrated CAN FD transceiver supporting data rates up to 8 Mbps. The CAN FD controller meets the specifications of the ISO 11898-1:2015 high speed Controller Area Network (CAN) data link layer and meets the physical layer requirements of the ISO 11898-2:2016 High Speed Controller Area Network (CAN) specification providing an interface between the CAN bus and the host system supporting both classical CAN and CAN FD up to 8 megabits per second (Mbps). The TCAN4550-Q1 provides CAN FD transceiver functionality: differential transmit capability to the bus and differential receive capability from the bus. The device includes many protection features providing device and CAN bus robustness. The device can also wake up via remote wake up using the CAN bus implementing the ISO 11898-2:2016 Wake Up Pattern (WUP). Input/Output support for 3.3 V and 5 V microprocessors using the VIO pin for a seamless interface. The TCAN4550-Q1 has a Serial Peripheral Interface (SPI) that connects to a local microprocessor for the device configuration, transmission and reception of CAN frames. The SPI interface supports clock rates up to 18 MHz.

The TCAN4550-Q1 has three main blocks as shown in Figure 3-1. A typical application for the TCAN4550-Q1 is shown in Figure 3-2.