TJA1051T/1J - 5 Mbit/s High-Speed CAN Transceiver | NXP
料号： TJA1051T/1J ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.2693 | $0.27 |
| 10 | $0.2693 | $2.69 |
| 100 | $0.2693 | $26.93 |
| 500 | $0.2693 | $134.65 |
| 1,000 | $0.2693 | $269.30 |
TJA1051T/1J 概述
A CAN transceiver is the physical-layer interface between a microcontroller or dedicated CAN controller and the CAN bus. The controller generates and interprets logic-level CAN TX and RX signals, while the transceiver converts those signals into the differential CANH and CANL bus signals. A high-speed CAN physical layer supports differential signaling, noise rejection and reliable communication over twisted-pair wiring.
The TJA1051T family is positioned for high-speed CAN networks at data rates up to 5 Mbit/s. The verified component listing identifies a nominal 5 V supply, normal/silent operation, 8-pin SO packaging and tape-and-reel ordering for TJA1051T/1J. NXP also states that TJA1051T is backward compatible with the TJA1050, which is important when upgrading an existing CAN interface.
The TJA1051 provides separate transmit-dominant, silent and receive behavior for bus management. Silent mode can be useful when a node must monitor or receive without driving the bus, although network software must coordinate this state with other nodes to avoid hidden transmitter conflicts. The device should be paired with an appropriate CAN controller, bus termination, common-mode protection and a correctly decoupled 5 V supply.
Typical installations include automotive body, powertrain-adjacent, gateway and diagnostic networks; industrial automation equipment; elevator and building-control systems; and embedded CAN gateways. The 5 Mbit/s capability suits short, well-terminated, high-quality CAN networks where maximum latency is more important than long cable distance. In every case, PCB layout, grounding and bus protection remain critical.
For layout, place the transceiver close to the bus connector, provide a continuous ground reference, route CANH and CANL as a coupled pair, and place termination only at the physical ends of the bus. Avoid long stubs between the transceiver and connector. Power filtering and common-mode chokes may be needed when the cable leaves the controlled PCB environment.
This page combines the verified NXP and distributor information with practical selection, layout and sourcing guidance. It also distinguishes verified facts from parameters that require confirmation from the complete manufacturer datasheet or current distributor inventory before design release.
直接替换替代料： TJA1051T/1J ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
TJA1051T/3,118
✅ 直接替换📋 参考替代料（不在目录中）
TJA1051T/3/1J
✅ 直接替换📋 参考替代料（不在目录中）
TJA1051TK/3/1J
✅ 直接替换📋 参考替代料（不在目录中）
TJA1051T/3/1J
✅ 直接替换📋 参考替代料（不在目录中）
TJA1051T/1J 规格参数
| Product Type | High-speed CAN transceiver |
| Maximum Data Rate | 5 Mbit/s |
| Nominal Supply Voltage | 5 V |
| CAN Bus | Two-wire differential CAN bus |
| Transmit and Receive | Differential transmit and differential receive |
| Operating Modes | Normal and SILENT mode |
| Controller Interface | CAN protocol controller with TX and RX signals |
| 封装 | 8-pin SOIC |
| 安装类型 | Surface mount |
| Shipping Format | Tape and reel |
| Automotive Qualification | AEC-Q100 qualified |
| Application | High-speed automotive CAN networks |
| Backward Compatibility | Backward compatible with TJA1050 |
| Low-Voltage MCU Compatibility | TJA1051T/3 permits interfacing to microcontrollers supplied down to 3 V |
| Low-Current Off-Mode Availability | Available in TJA1051T/E family variant |
| RoHS 状态 | unknown |
| REACH Status | unknown |
TJA1051T/1J 8-pin soic 引脚配置指南
TJA1051T/1J（8-pin soic 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： TJA1051T/1J.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TJA1051T/1J 适用于 6 应用s: Automotive Body Control Network, Industrial Automation CAN Gateway, Vehicle Diagnostics Interface, Elevator and Building Control, Embedded CAN Test and Measurement Module, Robotics and Mobile Equipment.
Automotive Body Control Network
The TJA1051T/1J fits a 5 V CAN node that connects a body-control microcontroller to a high-speed automotive bus. Its verified 5 Mbit/s capability supports responsive control and diagnostic traffic, while the differential CANH/CANL interface provides the physical layer for a CAN controller. Use a continuous ground reference and route the bus pair from the transceiver to the connector as a short, tightly coupled route. The supplied data associates the device with automotive high-speed CAN and AEC-Q100, but system validation must cover the actual vehicle voltage, EMI environment, bus fault conditions and qualified test report.
推荐
Industrial Automation CAN Gateway
The TJA1051T/1J can bridge a 5 V CAN controller to an industrial machine network when deterministic high-speed transport is required over a short, well-controlled bus. Its verified maximum data rate of 5 Mbit/s is useful for sensor fusion, actuator commands and machine-status packets, but long cables and electrically noisy equipment can reduce margin. Place it near the field connector, add qualified surge protection, maintain a common ground reference and keep termination at the bus endpoints. Validate propagation delay, common-mode range, radiated emissions and behavior during wiring faults against the actual installation.
推荐
Vehicle Diagnostics Interface
The TJA1051T/1J is suitable for a diagnostic or service gateway that must exchange frames with a high-speed CAN network through a 5 V CAN controller. Differential signaling supports noise-resistant communication over automotive twisted-pair wiring, and the verified family backward compatibility with TJA1050 is useful when modernizing an existing CAN physical layer. Keep transceiver and connector close together, protect the bus pins against external transients, and route CANH and CANL as a pair. Confirm sleep, wake and SILENT-mode behavior in system software so diagnostic service does not conflict with an active transmitter elsewhere on the bus.
推荐
Elevator and Building Control
The TJA1051T/1J can provide the high-speed CAN physical layer for elevator controllers, safety-related building equipment or room-control nodes operating from 5 V. The verified 5 Mbit/s rating supports compact control networks with predictable message latency, while differential CANH and CANL signaling helps reject common noise when cables pass near motors and switching loads. Use a low-impedance ground plane, short bus stubs and carefully placed termination. Because safety behavior depends on the complete system, test communication failures, bus-off recovery, power loss and electromagnetic compatibility rather than relying only on nominal transceiver performance.
推荐
Embedded CAN Test and Measurement Module
The TJA1051T/1J fits compact CAN diagnostic tools that expose a high-speed bus to a microcontroller or test controller. Its verified 5 Mbit/s capability allows bench equipment to exercise realistic CAN traffic, while normal and SILENT modes help develop transmit, receive and bus-monitoring software. Place the transceiver close to the removable or screw-locked bus connector, provide accessible test points and add configurable protection for user-supplied cables. Validate bus termination, ground faults, loop delay and recovery behavior, and do not enable a dominant TXD state merely to hold a receive-only tool online.
推荐
Robotics and Mobile Equipment
The TJA1051T/1J can connect a 5 V embedded controller to a compact high-speed CAN network carrying motor commands, sensor status and navigation events among robot modules. Differential bus signaling and the verified 5 Mbit/s rate fit equipment where rapid control updates and noise immunity matter. Keep the bus wiring short, provide a common-mode path and consider qualified filtering for motor-switching transients. The robot's power system must remain electrically compatible with the transceiver's verified supply and common-mode limits, which must be obtained from the complete NXP datasheet before deployment.
推荐
推荐产品汇总
工程参考数据： TJA1051T/1J ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TJA1051T/3,118 | TJA1051T/3/1J | TJA1051TK/3/1J | TJA1051T/3/1J |
|---|---|---|---|---|---|
| Package | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Product Family | TJA1051T high-speed CAN transceiver | TJA1051T family | TJA1051T family | TJA1051T family | TJA1051T family |
| Controller Supply Compatibility | 5 V interface context; exact threshold not supplied | Supports MCU supplies down to 3 V | Supports MCU supplies down to 3 V | Supports MCU supplies down to 3 V | Supports MCU supplies down to 3 V |
| Supply Voltage | 5 V nominal | 5 V nominal | 5 V nominal | 5 V nominal | 5 V nominal |
| TJA1050 Backward Compatibility | Supported for TJA1051T family | Supported for TJA1051T family | Supported for TJA1051T family | Supported for TJA1051T family | Supported for TJA1051T family |
关键差异点
- Selected /1 ordering variant preserves the intended 5 V interface context （对比 TJA1051T/3,118)
- Direct /1 source identity simplifies approved-part traceability （对比 TJA1051T/3/1J)
- Verified 5 Mbit/s capability targets high-speed classic CAN networks （对比 TJA1051TK/3/1J)
- Observed $0.2693 starting price supports commercial sourcing （对比 TJA1051T/3,118)
设计说明
Route CANH and CANL as a close, length-matched pair from the transceiver to the connector, with a continuous ground reference. Place the transceiver near the connector to minimize unprotected trace and stub length. Keep the 120-ohm termination network at the physical ends of the bus rather than adding it at every node. Confirm the actual termination philosophy with the NXP reference guidance; no unverified component value is assumed here.
Apply the manufacturer's required 5 V decoupling directly at the transceiver supply pins and keep the supply return path short. Decoupling capacitance and voltage rating must come from the complete NXP datasheet because they were not supplied in the verified snippets. Estimate worst-case local dissipation from the actual supply voltage and measured transceiver current before deployment, and ensure nearby converters and analog rails do not inject noise into the CAN node's reference plane.
Do not select an alternative from package name alone. The /3 family variants add verified compatibility with microcontroller supplies down to 3 V, while TJA1051T/1J is associated with a 5 V interface context. Check TXD and RXD thresholds, propagation delay, SILENT-mode truth tables, standby or enable behavior, bus fault flags and external protection before approving any drop-in substitution. A zero PCB change does not prove logic-level compatibility.
For cables entering an enclosure, evaluate qualified common-mode chokes and TVS devices rather than adding arbitrary capacitance to CANH or CANL. Protection-device capacitance, pulse current and common-mode choke impedance can alter bus timing and emissions. Validate radiated noise, immunity and fault recovery with the final cable, connector and termination. The verified material does not specify an exact protection network, so values must come from the application specification and relevant component data.
合规信息
The verified TJA1051T/1J component listing associates this suffix with AEC-Q100. RoHS, REACH, lead-free, halogen-free and conflict-mineral statements were not supplied and remain unknown.