TCAN4550 CAN FD Controller

By Texas Instruments 135

TCAN4550 CAN FD Controller

Texas Instruments' TCAN4550 is a CAN FD controller with an integrated CAN FD transceiver supporting data rates up to 5 Mbps. The CAN FD controller meets the specifications of the ISO11898-1:2015 high-speed controller area network (CAN) data link layer and meets the physical layer requirements of the ISO11898-2:2016 high-speed CAN specification. The TCAN4550 provides an interface between the CAN bus and the system processor through serial peripheral interface (SPI), supporting both classic CAN and CAN FD. The controller provides CAN FD transceiver functionality such as differential transmit capability to the bus and differential receive capability from the bus. The device supports wake-up via local wake-up (LWU) and bus-wake using the CAN bus implementing the ISO11898-2:2016 wake-up pattern (WUP).

The device includes many protection features providing device and CAN bus robustness. These features include fail-safe mode, internal dominant state timeout, wide bus operating range, and a time-out watchdog.

Features
  • Integrated CAN transceiver and SPI
  • Supports ISO 11898-1:2015 and Bosch M_CAN revision 3.2.1.1
  • Meets the requirements of ISO 11898-2:2016
  • CAN FD data rates up to 5 Mbps with up to 18 MHz SPI clock speed
  • Classic CAN backward compatible
  • Available operating modes: normal, standby, sleep, and fail-safe
  • 3.3 V to 5 V input/output logic support for microprocessors
  • Wide operating ranges on CAN bus:
    • ±42 V bus fault protection
    • ±12 V common-mode
  • Optimized behavior when unpowered:
    • Bus and logic terminals are high impedance (no load to operating bus or application)
    • Power-up and down glitch-free operation
Applications
  • Building automation
  • Factory automation and controls
  • Industrial transport

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