TJA1044GT/3Z

Overview

The TJA1044GT/3Z is a high-speed CAN transceiver from the Mantis family, designed for automotive applications. It interfaces between a CAN protocol controller and the physical two-wire bus. Operating within a supply voltage range of 4.5 V to 5.5 V, it supports data rates up to 5 Mbit/s in CAN FD fast phase. The device features a very low-current standby mode with bus wake-up capability and excellent EMC performance without requiring a common mode choke. It includes an internal biasing mechanism for TXD and STB pins, undervoltage detection on VCC and VIO, and overtemperature protection. The component operates across a temperature range of -40 °C to +150 °C.

Feature Summary

• Implements ISO 11898-2:2024 and SAE J2284 standards for reliable communication at speeds up to 5 Mbit/s.
• Features a dedicated VIO pin allowing direct interfacing with microcontrollers powered by 3.3 V to 5 V supplies.
• Provides ideal passive behavior to the CAN bus when the supply voltage is off.
• Includes fail-safe mechanisms such as TXD dominant time-out functions and internal input pin biasing.

Applications

• High-speed CAN networks in 12 V automotive systems
• Nodes requiring low-power modes with wake-up capability via the CAN bus
• Interfaces connecting microcontrollers to physical two-wire CAN buses

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and variant characteristics. Ensure that the selected part matches the required I/O voltage levels and thermal management needs for the target application environment.

Selection Notes

Select this variant if the design requires a SOIC-8 package with a dedicated VIO pin for flexible microcontroller interface voltages. Consider alternative variants like TJA1044T or TJA1044B/C if shorter propagation delay or different packaging options are preferred for larger network topologies.

Part Context

The TJA1044GT/3Z belongs to the Mantis family of high-speed CAN transceivers manufactured by NXP Semiconductors. This family offers significant improvements over previous generations, focusing on enhanced electromagnetic compatibility and optimized power consumption for modern automotive electronic architectures.

Replacement Considerations

TJA1044GT/1Z is listed as a parameter-compatible substitute available from the same manufacturer.