ZHCSJK5C January 2018 – October 2020 TCAN4550-Q1
The TCAN4550-Q1 is designed to work in application using the ISO 11898 standard supporting bus loads from 50 Ω to 65 Ω. As the TCAN4550-Q1 supports CAN FD data rates up to 8 Mbps it is recommended to use a 40 MHz crystal and keep trace lengths matched and short as feasible between the processor and device. As the CAN stub length are defined in the standard it is recommended to design the system according to these. As the TCAN4550-Q1 CAN transceiver is self-powered but also allows for up to 70 mA at 5 V to be sourced on VCCOUT, the system design needs to account for the CAN transceiver requirements when determining the load the LDO is to support. With this and the high temperature and input voltage range it is recommended to use a high-k board using proper thermal dissipation methods to ensure the highest performance.