TJA1051T/1J NXP High-Speed CAN FD Transceiver 5Mbps AEC-Q100 SOIC-8

TJA1051T/1J Product Overview

The TJA1051T/1J is a high-speed CAN (Controller Area Network) transceiver, designed for automotive and industrial CAN bus communication applications. The TJA1051T/1J provides an interface between a CAN protocol controller and the physical two-wire CAN bus, supporting CAN FD (Flexible Data Rate) protocol with data rates up to 5Mbps. Housed in an SOIC-8 package, the TJA1051T/1J is AEC-Q100 qualified and operates over a temperature range of -40℃ to +150℃, making the TJA1051T/1J suitable for in-vehicle networking, ECUs, and body control modules in harsh environments.

TJA1051T/1J Core Features

High-Speed CAN FD Support： The TJA1051T/1J supports CAN FD protocol with data rates up to 5Mbps, meeting the high-bandwidth requirements of next-generation in-vehicle networks.

Wide Operating Voltage Range： The TJA1051T/1J operates from a supply voltage of 4.5V to 5.5V, compatible with mainstream 5V microcontroller systems.

Automotive Grade Qualification： The TJA1051T/1J is AEC-Q100 qualified, with an operating temperature range of -40℃ to +150℃, suitable for harsh automotive and industrial environments.

Low EMI and High ESD Protection： The TJA1051T/1J features improved electromagnetic compatibility (EMC) performance and enhanced electrostatic discharge (ESD) protection, ensuring stable communication in complex electrical environments.

Low Power and Silent Mode： The TJA1051T/1J supports low-power silent mode, reducing standby power consumption.

Half-Duplex Transceiver： The TJA1051T/1J provides 1 driver / 1 receiver, half-duplex communication, with receiver hysteresis of 120 mV.

Undervoltage and Thermal Shutdown Protection： The TJA1051T/1J integrates undervoltage lockout and thermal shutdown protection for enhanced system reliability.

TXD Dominant Timeout Protection： The TJA1051T/1J features an integrated TXD dominant timeout function to prevent bus lock-up.

Surface-Mount SOIC-8 Package： The TJA1051T/1J comes in an 8-SOIC package, 0.154" (3.90mm) width, suitable for automated SMT assembly.

TJA1051T/1J Applications

In-Vehicle Networking (IVN)： The TJA1051T/1J enables high-speed CAN bus communication in automotive applications

Electronic Control Units (ECUs)： The TJA1051T/1J connects ECUs to the CAN bus

Body Control Modules (BCM)： The TJA1051T/1J provides reliable communication between body electronics modules

Industrial Automation： The TJA1051T/1J handles CAN bus device communication and control in industrial settings

Sensor and Actuator Networks： The TJA1051T/1J connects CAN bus sensor and actuator nodes

TJA1051T/1J Key Advantages

CAN FD Support for Future-Proofing： The TJA1051T/1J supports CAN FD protocol with data rates up to 5Mbps, offering higher bandwidth compared to traditional CAN 2.0.

Automotive-Grade Quality and Reliability： The TJA1051T/1J is AEC-Q100 qualified with -40℃ to +150℃ wide temperature range for harsh automotive and industrial environments.

High ESD Protection and Noise Immunity： The TJA1051T/1J delivers improved EMC and ESD performance, ensuring stable communication in noisy electrical environments.

Low Power Design： The TJA1051T/1J supports silent mode to reduce standby power consumption.

Comprehensive Protection Features： The TJA1051T/1J integrates undervoltage protection, thermal shutdown, TXD dominant timeout, and other protection mechanisms.

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FAQ

1. What is TJA1051T/1J?
   The TJA1051T/1J is a 3rd-generation high-speed CAN transceiver, available in an SOIC-8 package. The TJA1051T/1J provides an interface between a CAN protocol controller and the physical two-wire CAN bus, supporting CAN FD communication.

2. What are the key specifications of TJA1051T/1J?

• Data Rate of TJA1051T/1J: Up to 5 Mbps (CAN FD capable)

• Supply Voltage of TJA1051T/1J: 4.5V ~ 5.5V

• Operating Temperature of TJA1051T/1J: -40°C ~ +150°C

• Receiver Hysteresis of TJA1051T/1J: 120 mV

• Channels of TJA1051T/1J: 1 (1 driver / 1 receiver)

3. What package does TJA1051T/1J use?
The TJA1051T/1J uses the SOIC-8 package (Small Outline Integrated Circuit), measuring 4.9mm × 3.9mm × 1.75mm. The TJA1051T/1J Moisture Sensitivity Level is MSL 1 (unlimited).

4. What applications is TJA1051T/1J suitable for?
The TJA1051T/1J is suitable for automotive networks (ECU communication, body control modules, powertrain systems), industrial automation (sensor and actuator connections), smart grid, medical devices, robotics, and building automation. The TJA1051T/1J is qualified to AEC-Q100 automotive standard.

5. What development tools support TJA1051T/1J?
Standard CAN protocol controllers are used for driver development of the TJA1051T/1J — no specialized programming tools are required. Designers can refer to the official NXP TJA1051 datasheet and application note (AH1014) for hardware design and debugging of the TJA1051T/1J.

6. What is the operating temperature range of TJA1051T/1J?
The TJA1051T/1J operates over -40°C to +150°C (ambient temperature). The TJA1051T/1J is an AEC-Q100 automotive-grade device suitable for harsh automotive and industrial environments.

7. What operating modes does TJA1051T/1J support?
The TJA1051T/1J supports 2 operating modes: Normal Mode and Silent Mode. In Normal Mode of the TJA1051T/1J, CAN communication is fully enabled. In Silent Mode of the TJA1051T/1J, the transmitter is disabled while the receiver remains active — ideal for listen-only applications. Mode selection for the TJA1051T/1J is controlled via the S pin.

8. What protection features does TJA1051T/1J support?
The TJA1051T/1J features multiple built-in protection mechanisms: undervoltage detection and recovery (significantly improved over previous-generation TJA1050), thermal shutdown protection, ESD protection, and TXD dominant timeout (prevents bus lock-up on the TJA1051T/1J). The TJA1051T/1J also features fault isolation to prevent local faults from affecting the entire CAN network.

9. What is the difference between TJA1051T/1J and TJA1050?
TJA1051T/1J is a 3rd-generation high-speed CAN transceiver with significant improvements over the 1st-generation TJA1050, including improved EMC performance, higher ESD robustness, and more precise integrated undervoltage detection. The TJA1051T/1J also supports CAN FD (5 Mbps), whereas TJA1050 only supports classical CAN (up to 1 Mbps).

10. What interfaces and standards does TJA1051T/1J support?
The TJA1051T/1J directly interfaces with 3V to 5V microcontrollers. The TJA1051T/1J is compliant with ISO 11898-2 and SAE J2284 standards. The TJA1051T/1J supports CAN FD protocol with data rates up to 5 Mbps.