TJA1051T/3/2Z - 5 Mbit/s CAN Transceiver | NXP | Automotive
MPN: TJA1051T/3/2Z ✓ فعالTJA1051T/3/2Z نمای کلی
A CAN transceiver is an interface IC within the broader physical-layer network-communication hierarchy. It converts logic-level TXD and RXD signals into the differential CANH and CANL bus signals, while receiving the bus state and presenting a compatible logic signal to the host controller. CAN is a deterministic, robust multi-master bus widely used in vehicle networks, industrial automation, robotics, and embedded control systems.
The TJA1051T/3 variant combines a 5 Mbit/s maximum data rate with selectable VIO operation, allowing its TXD, RXD, and S interface signals to match a 3 V or 5 V microcontroller. NXP describes the TJA1051 family as backward compatible with the TJA1050 and as offering improved electromagnetic compatibility and electrostatic-discharge performance compared with earlier generations. The selected variants also support direct interfacing with microcontrollers operating from 3 V to 5 V.
The TJA1051T/3/2Z provides passive behavior when unpowered, helping prevent interference with an active CAN bus. Its silent-mode S input supports low-power or bus-disconnection requirements, while the VIO pin independently adapts the digital interface voltage. These features make the device useful in body controllers, powertrain controllers, gateway modules, industrial CAN equipment, and sensor nodes where EMC robustness and low-voltage logic compatibility are important.
Common automotive CAN systems place the transceiver between the vehicle’s CAN protocol controller and the CANH/CANL conductors. The bus normally uses a twisted-pair harness, 120 Ω termination at each end, and common-mode choke or split termination where required. Firmware can use the S input for silent mode, while the VIO connection must match the host controller’s supply voltage to prevent excessive input voltage or inadequate output drive.
Designers should follow the manufacturer’s pin configuration and application diagrams when assigning TXD, RXD, VIO, VCC, CANL, CANH, S, and ground connections. Decoupling capacitors should be placed close to the supply pins, and the CAN bus layout should minimize stub lengths. The PCB footprint must follow the 8-pin SOIC dimensions and pin numbering shown in the package drawing.
This product page combines the manufacturer’s device description with a practical view of interface voltage, bus speed, package compatibility, application fit, and engineering trade-offs. It also identifies verified drop-in alternatives for sourcing and design-review decisions without relying on generic distributor recommendations.
جایگزین‌های drop-in برای TJA1051T/3/2Z — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای TJA1051T/3/2Z (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Protocol, Product Type, Operating Temperature, Mounting Type.
TJF1051T/3
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←TCAN1051VDRQ1
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MCP2562FD-E/SN
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←SN65HVD230DR
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←TJA1057GTKZ
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←TJA1051T/3/2Z مشخصات
| Product Type | High-speed CAN transceiver |
| Maximum CAN Data Rate | 5 Mbit/s |
| Number of CAN Channels | 1 channel |
| Bus Interface | 2-wire differential CAN bus |
| Logic Interface Supply | 3 V to 5 V through VIO |
| Microcontroller Supply Compatibility | 3 V to 5 V |
| Silent Mode | Supported |
| Unpowered Behavior | Passive |
| بسته‌بندی | 8-pin SOIC |
| نوع نصب | Surface mount |
| Backwards Compatibility | Backward compatible with TJA1050 |
| EMC Performance | Enhanced compared with earlier TJA generations |
| ESD Performance | Enhanced compared with earlier TJA generations |
| Automotive Qualification | AEC-Q100 Grade 1 |
پیکربندی پین TJA1051T/3/2Z
| پین 1 | TXD — Transmitter data input |
| پین 2 | GND — Ground connection |
| پین 3 | VIO — Transceiver logic-side supply input |
| پین 4 | RXD — Receiver data output |
| پین 5 | VCC — Transceiver main supply input |
| پین 6 | CANL — CAN low bus output and input |
| پین 7 | CANH — CAN high bus output and input |
| پین 8 | S — Silent-mode control input |
کاربردهای معمول
TJA1051T/3/2Z مناسب است برای 6 کاربردs: Automotive Body Control Modules, Industrial Automation Controllers, Robotics Sensor Hubs, Vehicle Gateway Modules, Motor Control and Condition Monitoring, Embedded CAN Test and Diagnostic Equipment.
Automotive Body Control Modules
The TJA1051T/3/2Z fits a body-control module that communicates over a conventional high-speed CAN network while using a 3 V or 5 V microcontroller. Its VIO pin allows TXD, RXD, and S to operate at the controller’s logic level, while the transceiver handles differential signaling on CANH and CANL. The 5 Mbit/s capability supports common vehicle network rates, and passive unpowered behavior helps prevent a disabled module from disturbing an active bus. Automotive designs should still apply the manufacturer’s protection and decoupling guidance and use an appropriately qualified variant for the vehicle program.
پیشنهادی
Industrial Automation Controllers
The TJA1051T/3/2Z is suitable for industrial automation equipment that connects a microcontroller or embedded controller to a two-wire CAN field bus. Its 5 Mbit/s maximum rate supports high-speed CAN segments, while selectable VIO operation simplifies connection to 3.3 V or 5 V control logic. The transceiver’s enhanced EMC and ESD characteristics are valuable in factory environments containing motors, contactors, and long wiring. Keep CANH and CANL routing symmetrical, minimize stubs, provide correct bus termination, and verify common-mode voltage and surge exposure against the installation environment.
پیشنهادی
Robotics Sensor Hubs
A distributed robot can use the TJA1051T/3/2Z to connect a 3.3 V sensor-processing controller to a CAN backbone carrying joint, motor, and safety-related state. The low-voltage VIO interface reduces the need for level translation between the controller and transceiver, while the 5 Mbit/s capability accommodates a high-speed CAN network. Connect VIO directly to the controller I/O supply and use silent mode when a node must remain attached without actively participating. Cable routing and termination remain critical in mobile platforms where harnesses can experience vibration, flexing, and electromagnetic coupling.
پیشنهادی
Vehicle Gateway Modules
Vehicle gateways can place the TJA1051T/3/2Z at the boundary between a CAN protocol controller and a physical CAN bus. The dedicated VIO supply supports direct operation with modern 3 V controller cores, and silent mode allows the gateway to manage bus participation during startup, diagnostics, or fault conditions. Passive behavior when unpowered helps preserve network communication during reset or power transitions. A production design should verify the device’s exact ordering code, use the manufacturer’s recommended decoupling and protection components, and validate timing, termination, and transient immunity across the vehicle’s voltage and environmental limits.
پیشنهادی
Motor Control and Condition Monitoring
The TJA1051T/3/2Z can connect motor-control or condition-monitoring equipment to a CAN network carrying speed, current, temperature, fault, and diagnostic information. Its 5 Mbit/s capability provides sufficient bandwidth for high-rate control and monitoring traffic, and the VIO pin permits direct use with modern embedded controllers. The device is placed between the CAN controller and CANH/CANL, with decoupling placed close to its supply pins. For installations with long motor cables, separately assess common-mode transients and use the protection arrangement recommended for the harness rather than assuming transceiver ESD ratings cover every surge condition.
پیشنهادی
Embedded CAN Test and Diagnostic Equipment
The TJA1051T/3/2Z is appropriate for embedded diagnostic tools that connect a host controller to a CAN network for logging, fault injection, and node testing. Its selectable VIO level supports both 3.3 V and 5 V test platforms, while the 5 Mbit/s rate supports high-speed CAN traffic. Silent mode is useful when the instrument must monitor without acknowledging or driving frames. Use a controlled termination arrangement, protect the instrument ground from large common-mode differences, and confirm that the external host controller—not the transceiver—supplies the CAN protocol and fault-detection functions.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای TJA1051T/3/2Z — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | TJF1051T/3 | TCAN1051V | MCP2562FD | SN65HVD230 | TJA1057GTKZ |
|---|---|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 |
| Brand | NXP Semiconductors | NXP Semiconductors | Texas Instruments | Microchip Technology | Texas Instruments | NXP Semiconductors |
تفاوت‌های کلیدی
- Selectable logic-side supply (در مقابلSN65HVD230)
- Passive behavior during loss of power (در مقابلTCAN1051V)
- Enhanced EMC and ESD performance (در مقابلTJA1050)
- Legacy-controller migration path (در مقابلMCP2562FD)
یادداشت‌های طراحی
Connect VIO directly to the host controller’s 3 V or 5 V I/O supply and place its decoupling capacitor close to pin 3. Provide the main-supply decoupling recommended by NXP at VCC and maintain a continuous ground return to pin 2. Keep CANH and CANL traces short, matched, and away from switching nodes; the 8-pin SOIC footprint must match the manufacturer’s land pattern.
Route the CANH and CANL pair as a coupled pair with consistent geometry and minimize branches to connectors or peripheral nodes. The maximum 5 Mbit/s capability does not remove the need for controlled impedance and short stubs. Locate termination at the physical endpoints of the bus rather than beside the transceiver, and use the manufacturer’s CAN application layout for component spacing around the device.
Do not connect VIO to 5 V when the host controller uses 3.3 V logic, and do not assume the S pin has the same electrical behavior on every alternative. Verify TXD, RXD, CANH, CANL, VCC, VIO, GND, and S against the exact device pinout before assembly. Also distinguish the physical-layer transceiver from the CAN protocol controller; the transceiver does not implement frames, arbitration, acknowledgements, or diagnostics.
Use a symmetric CAN network, suitable common-mode strategy, and the protection components recommended by NXP for the cable environment. Transceiver ESD capability does not replace a surge-protection network for long industrial or automotive leads. Check ground-potential offsets, connector placement, and chassis coupling during system EMC testing because these factors can affect bus voltage margins even when the transceiver operates correctly on the bench.
Review the exact TJA1051 ordering suffix before placing the part. TJA1051T and TJA1051TK use different packages, while the /3 and /2Z portions identify functional, temperature, packaging, and reel-code attributes. For a new PCB, confirm the selected MPN against the SOIC-8 footprint, ordering table, tape orientation, and pick-and-place rotation in the manufacturer documentation.
اطلاعات انطباق
The cross-reference information identifies TJA1051T/3 as AEC-Q100 Grade 1. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status are not stated by the manufacturer product material and remain unknown.