Product details

Protocols CAN, CAN FD Number of channels (#) 1 Supply voltage (V) 5.5 to 30 Bus fault voltage (V) -58 to 58 Signaling rate (Max) (Mbps) 8 Rating Automotive Operating temperature range (C) -40 to 125 Low power mode Sleep Common mode voltage (V) -12 to 12 Isolated No
Protocols CAN, CAN FD Number of channels (#) 1 Supply voltage (V) 5.5 to 30 Bus fault voltage (V) -58 to 58 Signaling rate (Max) (Mbps) 8 Rating Automotive Operating temperature range (C) -40 to 125 Low power mode Sleep Common mode voltage (V) -12 to 12 Isolated No
VQFN (RGY) 20 16 mm² 4.5 x 3.5
  • AEC-Q100: qualified for automotive applications
    • Temperature grade 1: –40°C to 125°C TA
  • CAN FD controller with integrated CAN FD transceiver and serial peripheral interface (SPI)
  • CAN FD controller supports both ISO 11898-1:2015 and Bosch M_CAN Revision 3.2.1.1
  • Meets the requirements of ISO 11898-2:2016
  • Supports CAN FD data rates up to 8 Mbps with up to 18 MHz SPI clock speed
  • Classic CAN backwards compatible
  • Operating modes: normal, standby, sleep, and failsafe
  • 1.8 V, 3.3 V to 5 V input/output logic support for microprocessors
  • Wide operating ranges on CAN bus
    • ±58 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
  • AEC-Q100: qualified for automotive applications
    • Temperature grade 1: –40°C to 125°C TA
  • CAN FD controller with integrated CAN FD transceiver and serial peripheral interface (SPI)
  • CAN FD controller supports both ISO 11898-1:2015 and Bosch M_CAN Revision 3.2.1.1
  • Meets the requirements of ISO 11898-2:2016
  • Supports CAN FD data rates up to 8 Mbps with up to 18 MHz SPI clock speed
  • Classic CAN backwards compatible
  • Operating modes: normal, standby, sleep, and failsafe
  • 1.8 V, 3.3 V to 5 V input/output logic support for microprocessors
  • Wide operating ranges on CAN bus
    • ±58 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

The TCAN4551-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 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 TCAN4551-Q1 provides an interface between the CAN bus and the system processor through serial peripheral interface (SPI), supporting both classic CAN and CAN FD, allowing port expansion of CAN and CAN FD or CAN support with processors that do not support CAN FD. The TCAN4551-Q1 provides CAN FD transceiver functionality: 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 failsafe features, internal dominant state timeout and wide bus operating range as examples.

The TCAN4551-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 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 TCAN4551-Q1 provides an interface between the CAN bus and the system processor through serial peripheral interface (SPI), supporting both classic CAN and CAN FD, allowing port expansion of CAN and CAN FD or CAN support with processors that do not support CAN FD. The TCAN4551-Q1 provides CAN FD transceiver functionality: 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 failsafe features, internal dominant state timeout and wide bus operating range as examples.

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Type Title Date
* Data sheet TCAN4551-Q1 Automotive Control Area Network Flexible Data Rate (CAN FD) Controller with Integrated Transceiver datasheet (Rev. A) 01 Nov 2019
Application note TCAN455x Clock Optimization and Design Guidelines 26 Jul 2021
Application note TCAN4550 Watchdog Configuration Guide 01 May 2019

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Evaluation board

TCAN4550EVM — TCAN4550-Q1 CAN FD controller with integrated transceiver evaluation module

The EVM can be used to evaluate the TCAN4550 SPI to CAN FD Controller and Transceiver solution.  The CAN bus signals are easily accessed via a DB9 connector (or via header pins), and the digital interface (SPI lines plus GPIOs) is accessible via a single dual-row header.  Input clocks to (...)

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