CJMCU-1051 TJA1051 CAN BUS Transceiver Module

CJMCU-1051 TJA1051 CAN BUS Transceiver Module is a high-speed CAN transceiver module based on the TJA1051 chip, offering reliable communication for automotive and industrial CAN bus networks. It supports baud rates up to 1 Mbps, features protection mechanisms, and is suitable for use with microcontrollers like Arduino, STM32, and ESP32 for CAN communication projects.

Key Features:

• High-Speed CAN Support: Compatible with ISO 11898-2 for up to 1 Mbps communication.
• Robust Design: Offers short-circuit protection and dominant timeout function.
• Low Electromagnetic Emission: Optimized for high EMC performance in noisy environments.
• Thermal Protection: Includes thermal shutdown and current limiting.
• Microcontroller Compatible: Works with 3.3V and 5V logic levels.

Technical Specifications:

• Transceiver Chip: TJA1051
• Operating Voltage: 3.0V to 5.5V
• CAN Baud Rate: Up to 1 Mbps
• Bus Voltage Range: -27V to +40V
• Standby Current: < 10 µA
• Driver Output Resistance: ~1.5 Ω

Mechanical Specifications:

• PCB Material: FR4
• Connector Type: Header pin for VCC, GND, RX, TX; Screw terminal for CANH, CANL
• Mounting: Soldered on host board or connected via jumper wires

Dimensions:

• Module Size: Approx. 28mm x 21mm
• Mounting Holes: 2 holes for M2 screws (optional usage)

Pinout and Wiring:

• VCC: Power input (3.3V or 5V)
• GND: Ground connection
• RXD: CAN receiver output (to MCU TX)
• TXD: CAN transmitter input (from MCU RX)
• CANH: CAN High bus line
• CANL: CAN Low bus line

Datasheet Reference:

• Search online for “TJA1051 CAN Transceiver Datasheet by NXP”

Applications:

• Automotive Networks: For ECUs and onboard diagnostics (OBD-II)
• Industrial Automation: CAN-based machine-to-machine communication
• Robotics: Multi-microcontroller communication via CAN bus
• IoT Projects: Reliable long-distance communication in harsh environments
• Battery Management Systems: CAN used in BMS for real-time data transfer

Equivalent Models:

• MCP2551: Commonly used CAN transceiver for automotive applications
• SN65HVD230: Low-power CAN transceiver, 3.3V compatible
• TI TCAN1051: Robust high-speed CAN transceiver with advanced protection

Package Includes:

• 1 x CJMCU-1051 CAN Bus Transceiver Module