TJA1051T/3/1U - 3V High-Speed CAN Transceiver | NXP
MPN: TJA1051T/3/1U ✓ Hoạt độngTJA1051T/3/1U Tóm tắt
A CAN transceiver is an interface IC within the Controller Area Network communication hierarchy. It converts logic-level TXD and RXD signals used by a CAN controller into the dominant and recessive voltage levels carried by CANH and CANL. The TJA1051 family also provides bus-side protection, fault-tolerant operation, and passive behavior when the device is not powered, helping a controller remain operational during certain bus faults.
The TJA1051 is described as a third-generation CAN transceiver with improved electromagnetic compatibility and electrostatic-discharge performance compared with earlier generations. Its VIO connection allows TXD, RXD, and STB signal levels to match the supply voltage of the connected microcontroller. This is particularly useful in mixed 3 V and 5 V systems where a bus transceiver must interface cleanly with modern low-voltage controllers.
The TJA1051T/3 family supports a maximum CAN data rate of 5 Mbit/s and can operate with controller supply voltages down to 3 V. Its high-speed CAN architecture suits passenger vehicles, commercial vehicles, industrial automation systems, and embedded control networks. The SOIC-8 package supports conventional surface-mount assembly and offers a compact interface between a host controller and an external CAN bus.
Typical applications include automotive body and comfort systems, industrial PLC and factory automation networks, robotics controllers, building automation equipment, and embedded CAN gateways. Because CAN uses a shared multidrop bus, correct termination, grounding, routing, and decoupling remain as important as the transceiver selection itself.
When laying out a PCB, place the transceiver close to the CAN connector and keep the CANH and CANL route symmetrical. Route TXD and RXD as controlled-impedance digital signals, provide local supply decoupling, and avoid placing sensitive analog or high-speed clock traces alongside the bus conductors. Verify timing, bus fault behavior, termination, and logic compatibility before production release.
This product record combines the NXP family description with application guidance for engineers evaluating the TJA1051T/3/1U. It highlights the 3 V controller interface, 5 Mbit/s bus capability, SOIC-8 packaging, practical PCB considerations, and the distinctions that must be checked when considering a replacement or a related CAN transceiver.
Bộ thay thế dễ dàng lắp đặt cho TJA1051T/3/1U — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TJA1051T/3/1U (cùng hình factor và footprint) — khác nhau ở Package, Backward Compatibility, Product Type, Automotive Qualification, Bus Fault Protection.
TJA1051T/3/1J
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TJA1051T/3,118
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TJA1051T/3/1
✅ Drop-In✓ Còn hàng
$0.4102 / Đơn vị
Xem tài liệu →TCAN1051HVDQ1
✅ Drop-In✗ Hết hàng
$1 / Đơn vị
Xem tài liệu →SN65HVD234DR
✅ Drop-In✗ Hết hàng
$1.3 / Đơn vị
Xem tài liệu →TJA1051T/3/1U Thông số kỹ thuật
| Product Type | High-speed CAN transceiver |
| CAN Transceiver Channels | 1 channel |
| Maximum CAN Data Rate | 5 Mbit/s |
| Controller Interface Supply Compatibility | 3 V to 5 V |
| Hộp | SOIC-8 |
| Bus Interface | Two-wire CAN bus |
| Controller Interface | TXD and RXD |
| I/O Level Control | VIO-controlled TXD, RXD, and STB signal levels |
| Unpowered Behavior | Passive behavior |
| EMC Performance | Enhanced compared with earlier transceiver generations |
| ESD Performance | Enhanced compared with earlier transceiver generations |
| Backward Compatibility | TJA1051T is backwards compatible with the TJA1050 |
| Kiểu lắp đặt | Surface mount |
| Automotive Qualification | AEC-Q100 Grade 1 |
Hướng dẫn cấu hình chân TJA1051T/3/1U soic-8
Cấu hình chân cho TJA1051T/3/1U (soic-8 gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho TJA1051T/3/1U.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
TJA1051T/3/1U phù hợp cho 6 Áp dụngs: Automotive Body Control Networks, Industrial PLC and Factory Automation, Robotics and Motion Control, Building Automation and HVAC, Embedded CAN Gateways, Test Equipment and Diagnostics.
Automotive Body Control Networks
The TJA1051T/3/1U fits automotive body, comfort, and gateway controllers that use a CAN protocol controller plus an external physical-layer transceiver. Its maximum data rate of 5 Mbit/s supports high-speed CAN communication, while VIO-controlled TXD, RXD, and STB levels permit direct connection to a 3 V microcontroller. The improved EMC and ESD performance is particularly relevant to electrically harsh vehicle environments. Place the transceiver near the bus connector, use symmetrical CANH and CANL routing, and validate termination, standby polarity, and fault recovery against the network requirements.
Được đề xuất
Industrial PLC and Factory Automation
The TJA1051T/3/1U is suitable for PLC modules, machine controllers, and factory automation equipment that connect legacy CAN networks to a low-voltage embedded processor. The transceiver supports CAN operation up to 5 Mbit/s and exposes a controller interface compatible with 3 V to 5 V logic levels through VIO. Its passive unpowered behavior helps maintain network stability during certain controller power transitions. In a factory design, route the bus away from motor-switching nodes, use a robust connector and protective network, and verify the termination strategy for each cable length.
Được đề xuất
Robotics and Motion Control
The TJA1051T/3/1U can connect a robot controller, actuator hub, or remote I/O module to a high-speed CAN backbone carrying commands and sensor feedback. Its 5 Mbit/s capability provides adequate bandwidth for coordinated motion and distributed diagnostics, while the 3 V-capable logic interface fits compact embedded controllers. Keep the CANH and CANL pair tightly coupled, separate it from motor power paths, and test operation with the selected termination because long cable runs and branch stubs can alter signal timing and fault margins.
Được đề xuất
Building Automation and HVAC
The TJA1051T/3/1U is appropriate for building automation controllers, HVAC modules, room controllers, and sensor gateways that use CAN for reliable multi-drop communication. The VIO feature allows the transceiver logic to operate at the controller's 3 V supply while the bus side handles the physical differential signaling. This reduces level-shifting complexity in compact controls. Designers should use low-ESR local decoupling, preserve a common ground reference between nodes, and isolate CAN routing from mains-derived switching nodes to minimize common-mode disturbances.
Được đề xuất
Embedded CAN Gateways
The TJA1051T/3/1U is useful in protocol gateways that bridge an embedded CAN controller to another communications interface. A 5 Mbit/s CAN physical layer permits efficient transfer of real-time process data, and the 3 V logic compatibility supports compact gateway designs built around modern microcontrollers. Choose the gateway supply architecture so the transceiver receives clean VCC and VIO rails, and validate controller wake, sleep, and standby transitions. The passive unpowered behavior is advantageous when a gateway is reset while other nodes continue communicating.
Được đề xuất
Test Equipment and Diagnostics
The TJA1051T/3/1U can serve in CAN diagnostic tools, interface modules, and automated test fixtures where a host controller needs access to a physical two-wire network. Its 5 Mbit/s capability supports both functional testing and communication with high-speed CAN nodes. Use controlled bus termination and diagnostic protection appropriate to the bench environment, and keep the host digital interface away from high-energy bus faults. Before production use, verify loopback behavior, error reporting, timeout handling, and state transitions across the controller's complete operating range.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TJA1051T/3/1U — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TJA1051T/3/1J | TJA1051T/3,118 | TJA1051T/3/1 | TCAN1051 | SN65HVD234 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Texas Instruments | Texas Instruments |
| Package | SOIC-8 | SOIC-8 - same package | SOIC-8 - same package | SOIC-8 - same package | SOIC-8 - same package | SOIC-8 - same package |
| Transceiver Type | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver |
| Transceiver Channels | 1 channel | 1 channel | 1 channel | 1 channel | 1 channel | 1 channel |
Bảo phân biệt quan trọng
- Native 3 V controller-interface support (vsSN65HVD234)
- Third-generation EMC and ESD improvements (vsTJA1050T)
- Passive behavior during loss of power (vsTCAN1051)
Ghi chú thiết kế
Route CANH and CANL as a tightly coupled differential pair with a continuous reference plane and avoid stubs, vias, and impedance discontinuities wherever possible. Keep the transceiver close to the bus connector so surge current is limited to the protected interface region. Preserve the connector-to-transceiver ground return, and place external bus protection close to the connector rather than near the controller.
Connect VIO to the microcontroller supply voltage so TXD, RXD, and STB operate at compatible logic levels. Provide separate, local bypass capacitors at VCC and VIO, with the shortest possible return path to the device ground pins. Confirm the final capacitor values and stability requirements against the NXP datasheet, and verify power-up and power-down sequencing across every controller operating state.
Do not assume that identical SOIC-8 packages guarantee a drop-in replacement. Before substituting TCAN1051 or SN65HVD234, compare VIO ranges, logic thresholds, STB or EN polarity, timeout behavior, loopback implementation, bus fault response, and pin-level timing. The NXP family order codes also require confirmation because suffix differences can identify reel, regional, or other commercial packaging details.
Keep switching regulators, relay drivers, motor outputs, and high-current power loops away from CANH and CANL. Maintain a solid ground reference and use the shortest practical ground connection between the transceiver, controller, and connector. If the bus must cross a noisy region, route it perpendicular to the dominant noise direction and verify signal integrity with an oscilloscope under the worst operating load.
Thông tin tuân thủ
The cross-reference material identifies the TJA1051T/3 family as AEC-Q100 Grade 1. No separate RoHS, REACH, lead-free, halogen-free, or conflict-minerals declaration was established for the exact order code, so those fields remain unknown.