High Speed CAN Transceiver with Partial Networking, CAN FD Data Rates up to 5 Mbit/s

TJA1145A

The TJA1145A is a high-speed CAN transceiver that provides an interface between a controller area network (CAN) protocol controller and the physical two-wire CAN bus. The transceiver is designed for high-speed CAN and CAN FD applications in the automotive industry, providing differential transmit and receive capability to a microcontroller with a CAN protocol controller.

TJA1145A supports reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s.

The TJA1145A features very low power consumption in standby and sleep modes and supports ISO 11898-2:2016 compliant CAN Partial Networking by means of a selective wake-up function.

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Block Diagram

TJA1145A High Speed CAN Transceiver Block Diagram

TJA1145A High Speed CAN Transceiver Block Diagram
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Features

General Features

  • ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant
  • Data rates up to 5 Mbit/s in the CAN FD fast phase
  • Autonomous bus biasing
  • TJA1145ATK/FD supports FD passive behaviour to CAN FD data
  • Fully compatible with the TJA1145, with improved EMC performance

Designed for Automotive Applications

  • ±6 kV ESD protection, according to IEC TS 62228 on pins BAT and WAKE and on the CAN bus pins
  • CAN bus pins short-circuit proof to ±58 V
  • Suitable for use in 12 V and 24 V systems
  • AEC-Q100 qualified

Advanced ECU Power Management System

  • Very low-current standby and sleep modes, with full wake-up capability
  • Entire node can be powered down via the inhibit output
  • Remote wake-up capability via HS CAN wake-up pattern or selective wake-up frame detection
  • Selective wake-up for bit rates up to 1 Mbit/s
  • Local wake-up via the WAKE pin
  • Wake-up source recognition

Protection and Diagnosis

  • 16-, 24- or 32-bit SPI for configuration, control and diagnosis
  • Transmit Data (TXD) dominant time-out function with diagnosis
  • Overtemperature warning and shut-down
  • Undervoltage detection and recovery on pins VCC, VIO and BAT
  • Cold start diagnosis (via bits PO and NMS)

Part numbers include: TJA1145AT, TJA1145ATK.

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