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TJA1044GT/3Z

TJA1044GT/3Z

NXP Semiconductors
NXP high-speed/CAN transceiver family used broadly in automotive applications as an alternate physical-layer device.
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Overview

The TJA1044GT/3Z is an NXP automotive-grade high-speed CAN transceiver in an 8-SOIC package. It implements a single-channel, half-duplex physical layer for CAN networks and is specified for data rates up to 5 Mbps. The device is designed for 5 V supply systems (4.75 V to 5.25 V) and a wide operating temperature range (-40degC to 150degC), making it suitable for harsh automotive environments.

Why Choose This Part

This transceiver is automotive-qualified and rated for a very wide temperature range, making it suitable for under-hood and other harsh installations. Its 5 V supply and up-to-5 Mbps data-rate capability cover many high-speed CAN and CAN FD applications while the common 8-SOIC footprint simplifies PCB layout and replacement in existing designs. The specified receiver hysteresis (300 mV) helps noise immunity on vehicle wiring.

Applications

Engine and transmission ECUs
Provides the physical-layer interface between microcontroller CAN peripherals and the vehicle CAN bus for robust in-vehicle communications.
Body electronics and gateways
Used in gateways, door modules, and body control units where an automotive-grade transceiver and high data rate are required.
Diagnostic and service tools
Fits diagnostic adapters and scan tools that need a reliable CAN physical interface capable of higher-speed segments.
Industrial CAN and CAN FD segments
Useful in industrial control networks or CAN FD front-ends where extended temperature and higher data rates are beneficial.

Key Specifications

Type Transceiver
Duplex Half
Protocol CANbus
Data Rate 5Mbps
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Voltage - Supply 4.75V ~ 5.25V
Receiver Hysteresis 300 mV
Operating Temperature -40degC ~ 150degC
Supplier Device Package 8-SO
Number of Drivers/Receivers 1/1

Getting Started

To use this part you need a host MCU with a CAN controller; connect TX/RX to the MCU CAN Tx/Rx pins, provide a stable 5 V supply, and include the proper 120 ohm bus termination (and optional common-mode choke or ESD protection) on the CAN lines. Consult the NXP datasheet and reference design for recommended transceiver routing, decoupling, and protection. For development and debugging, pair the transceiver with a CAN-capable MCU evaluation board and a USB-to-CAN adapter or CAN analyzer to monitor bus traffic.

Also Consider

MCP2551 MCHPMicrochip Technology - A widely used 5 V high-speed CAN transceiver available in SOIC-8 that is suitable for many automotive and industrial CAN applications.
SN65HVD230 TITexas Instruments - A robust CAN transceiver from TI offered in an SOIC-8 package; frequently used as an automotive-grade or industrial CAN PHY alternative.