TJA1044GT-3Z – 1/1 Transceiver Half CANbus SOP-8

TJA1044GT-3Z – 1/1 Transceiver Half CANbus SOP-8 is an advanced, high-speed Controller Area Network (CAN) transceiver designed to bridge the gap between a CAN protocol controller and the physical bus lines. This high-performance integrated circuit supports both standard CAN and CAN FD (Flexible Data-rate) protocols, offering exceptional communication reliability at data rates up to 5 Mbps. Consequently, it satisfies the strict automotive requirements for high bandwidth and robust electromagnetic compatibility (EMC). The device also incorporates an integrated standby mode with remote wake-up capability, which drastically optimizes system power consumption. Furthermore, its small SOP-8 form factor allows for seamless integration into space-constrained electronic control units. Therefore, developers can trust this transceiver to provide secure, efficient, and highly dependable data paths in automotive and industrial networks alike.

Key Features:

• CAN FD Compatibility: Supports high-speed data transmission rates up to 5 Mbps, ensuring seamless operation in modern, data-intensive CAN FD automotive networks.
• Ultra-Low Current Standby Mode: Features an optimized power mode with bus wake-up capability, which significantly reduces standby power drain for battery-sensitive systems.
• Excellent EMC Performance: Implements advanced internal matching networks to keep electromagnetic emissions low while maintaining a high level of electromagnetic immunity.
• Robust Protection Features: Includes integrated overtemperature protection, transmit data (TXD) dominant time-out, and high ESD resistance across the bus pins.
• V_IO Pin Interface: Provides a dedicated interface pin to allow direct connection with microcontrollers operating on lower logic supply voltages like 3.3 V.

Technical Specifications:

• Supply Voltage (V_CC): 4.75 V to 5.25 V
• Logic Interface Voltage (V_IO): 2.97 V to 5.5 V
• Maximum Data Rate: Up to 5 Mbps (CAN FD)
• ESD Protection: ±6 kV on CANH and CANL pins (IEC 61000-4-2)
• Bus Common-Mode Voltage Range: −30 V to +30 V
• Virtual Junction Temperature: −40°C to +150°C

Mechanical Specifications:

• Package Type: SOP-8 (SO8 / Small Outline Package)
• Lead Count: 8 pins
• Material: Plastic molding compound (UL 94 V-0 flammability class)
• Mounting Type: Surface Mount Technology (SMT)

Dimensions:

• Body Length: ≈ 4.90 mm
• Body Width: ≈ 3.90 mm (Excluding leads)
• Total Width: ≈ 6.00 mm (Including leads)
• Package Height: ≈ 1.45 mm
• Pin Pitch: 1.27 mm

Pinout and Wiring:

• Pin 1 (TXD): Transmit Data Input. Connect this pin to the microcontroller CAN controller transmit output.
• Pin 2 (GND): Ground connection. Link this securely to the local circuit ground plane.
• Pin 3 (VCC): 5 V Transceiver Supply Voltage. Place a 100 nF bypass capacitor close to this pin.
• Pin 4 (RXD): Receive Data Output. Connect this pin to the microcontroller CAN controller receive input.
• Pin 5 (VIO): Supply Voltage for I/O Level Adapter. Connect to the host MCU supply voltage (e.g., 3.3 V).
• Pin 6 (CANL): LOW-level CAN Bus Line. Connect this directly to the physical twisted-pair CAN network line.
• Pin 7 (CANH): HIGH-level CAN Bus Line. Connect this directly to the matching physical CAN network line.
• Pin 8 (STB): Standby Mode Control Input. Drive this pin HIGH to engage low-power standby mode, or LOW for normal operation.

Datasheet Reference:

• Download NXP TJA1044 CAN Transceiver Datasheet

Commonly Used in:

• Automotive Electronics: Providing the physical network link for body control modules, infotainment arrays, and powertrain systems.
• Industrial Automation: Interfacing automated sensory nodes and central PLCs via long-distance CAN networks.
• Robotics Networks: Linking multi-axis motor controllers and feedback systems inside industrial robotic arms.

Applications:

• Vehicle Networking: Establishing communication inside automotive sub-buses that implement standard high-speed CAN or CAN FD topologies.
• In-Vehicle Diagnostics: Serving as the communication interface for vehicle OBD-II diagnostic equipment and monitoring modules.
• Smart Agriculture Hardware: Managing distributed control systems on heavy agricultural machinery using the ISOBUS standard.

Equivalent Models:

• TCAN1044V-Q1 (Texas Instruments): A drop-in, automotive-qualified alternative featuring a similar V_IO pin and low standby currents.
• MCP2562FD (Microchip): A popular high-speed CAN FD transceiver with equivalent I/O voltage flexibility.
• SIT1044QT (Silicon Internet of Things): A pin-to-pin functional cross-reference version, however, engineers must verify exact ESD specifications before deployment.

Package Includes:

• 1 x TJA1044GT-3Z – 1/1 Transceiver Half CANbus SOP-8 IC