Product details

Protocols CAN, CAN FD, SBC Number of channels (#) 1 Supply voltage (V) 6 to 24 Bus fault voltage (V) -42 to 42 Signaling rate (Max) (Mbps) 5 Rating Catalog Operating temperature range (C) -40 to 125 Low power mode Sleep Common mode voltage (V) -12 to 12 Isolated No
Protocols CAN, CAN FD, SBC Number of channels (#) 1 Supply voltage (V) 6 to 24 Bus fault voltage (V) -42 to 42 Signaling rate (Max) (Mbps) 5 Rating Catalog 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
  • 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
  • CAN FD data rates up to 5 Mbps with up to 18 MHz SPI clock speed
  • Classic CAN backwards compatible
  • Operating modes: normal, standby, sleep, and failsafe
  • 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
  • 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
  • CAN FD data rates up to 5 Mbps with up to 18 MHz SPI clock speed
  • Classic CAN backwards compatible
  • Operating modes: normal, standby, sleep, and failsafe
  • 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

The TCAN4550 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 TCAN4550 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 or CAN support with processors that do not support CAN FD. The TCAN4550 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 , internal dominant state timeout, wide bus operating range and a time-out watchdog as examples.

The TCAN4550 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 TCAN4550 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 or CAN support with processors that do not support CAN FD. The TCAN4550 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 , internal dominant state timeout, wide bus operating range and a time-out watchdog as examples.

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Technical documentation

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Type Title Date
* Data sheet TCAN4550 Automotive Control Area Network Flexible Data Rate (CAN FD) Controller with Integrated Transceiver datasheet (Rev. A) 27 Jun 2019
Application note TCAN455x Clock Optimization and Design Guidelines 26 Jul 2021
User guide TCAN45xx Software User's Guide 03 May 2019
Application note TCAN4550 Watchdog Configuration Guide 01 May 2019
User guide SPI to CAN FD SBC + LIN Transceiver BoosterPack User's Guide 01 Apr 2019
User guide TCAN4x5x Evaluation Module User's Guide (Rev. A) 22 Mar 2019
Technical article CAN & LIN: take a look inside 01 Mar 2018

Design & development

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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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Driver or library

TCAN4550 Demo Software (Rev. B)

SLLC469B.ZIP (1176 KB)
Simulation model

TCAN4550 IBIS Model

SLLM433.ZIP (215 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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VQFN (RGY) 20 View options

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