TJA1055T/3/1 - 125 kBd Fault-Tolerant CAN | NXP
料号： TJA1055T/3/1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TJA1055T/3/1 概述
A CAN transceiver is the physical-layer interface within a Controller Area Network. It converts the controller's TXD logic signal into a differential CAN bus signal and converts differential bus states into an RXD logic signal. The TJA1055 family is intended primarily for low-speed passenger-car networks, where enhanced fault tolerance helps maintain communication when bus faults, short circuits, or dominant and recessive-state conditions occur.
The verified product information identifies differential receive and transmit capability and optimization for in-car low-speed communication. NXP's datasheet also states that TJA1055 is pin-to-pin compatible with TJA1054 and TJA1054A. The 3 V VIO version in TJA1055T/3/1 is particularly relevant to controller interfaces operating at a 3.3 V logic level, although complete supply-voltage, timing, and transceiver-I/O limits must be taken from the manufacturer datasheet.
Typical use is in passenger-vehicle body, comfort, and control modules where CAN bus speed does not exceed 125 kBd. Designers connect the microcontroller or standalone CAN controller to the transceiver, connect CANH and CANL to the bus, and provide the required power, reference, and decoupling components described by NXP. Fault-tolerant behavior should be evaluated against the target network topology, termination, grounding, and ISO 11898 requirements.
The most important design consideration is selecting the correct package and orderable variant. The verified listing identifies a 14-lead SO package and distinguishes TJA1055T/3/1 from TJA1055T/3/1J, where the J suffix denotes tape-and-reel packing. Do not treat packaging suffixes as different electrical devices, and verify logic-level compatibility before substitution.
This page consolidates verified manufacturer identity, package information, operating-rate positioning, dual-source context, and replacement evidence into an engineering-focused resource. It does not infer unreported electrical limits, pricing, compliance status, or unverified competitor equivalence.
TJA1055T/3/1 规格参数
| Product Type | Enhanced fault-tolerant CAN transceiver |
| Maximum Intended Data Rate | 125 kBd |
| CAN Differential Receive and Transmit | Supported |
| VIO Version | 3 V |
| Dual-Source Supply | SSMC wafer fab or ICN8 wafer fab |
| 封装 | Plastic small outline package |
| Lead Count | 14 leads |
| Package Body Width | 3.9 mm |
| Primary Application | Low-speed passenger-car CAN networks |
| Optimization | In-car low-speed communication |
| Pin Compatibility Reference | TJA1054 and TJA1054A |
| 安装类型 | Surface mount |
TJA1055T/3/1 3.9 mm 引脚配置指南
TJA1055T/3/1（3.9 mm 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： TJA1055T/3/1.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TJA1055T/3/1 适用于 6 应用s: Passenger-Car Body Control, Vehicle Comfort CAN Network, Automotive Lighting Controller, Door and Seat Module, Low-Speed Industrial CAN Adapter, Low-Speed CAN Test Interface.
Passenger-Car Body Control
The TJA1055T/3/1 fits low-speed body-control networks that connect door modules, lighting controllers, seat electronics, and climate-related nodes. Its verified positioning for CAN communication up to 125 kBd targets passenger-car networks rather than high-speed powertrain domains. Place the transceiver beside the CAN controller and connector, connect CANH and CANL to the bus, and apply the datasheet's decoupling and grounding guidance. Its enhanced fault-tolerant design is relevant when the network must remain dependable under bus wiring faults, while the 3 V VIO designation must be matched to the controller's logic interface.
推荐
Vehicle Comfort CAN Network
Use the TJA1055T/3/1 where a comfort subsystem communicates over a low-speed in-car CAN bus. The device's verified 125 kBd target and enhanced fault-tolerant positioning make it more appropriate for conventional body and comfort traffic than for high-speed CAN domains. The transceiver translates between the CAN controller and differential bus wiring, reducing the need for external line-driver circuitry. Engineering checks should include termination strategy, connector pinout, fault behavior, ground reference, and controller compatibility with the 3 V VIO version before releasing the board.
推荐
Automotive Lighting Controller
A lighting-control module can use the TJA1055T/3/1 to connect a CAN controller to a low-speed vehicle network carrying lamp commands and status information. The 125 kBd operating target suits slower body systems, and the fault-tolerant CAN interface helps isolate the controller from direct bus-line stress. Keep the transceiver close to the bus connector and route CANH and CANL as a differential pair with controlled return-path geometry. The 3 V VIO version must be checked against the selected MCU, and all protection and common-mode details must follow the manufacturer datasheet rather than generic assumptions.
推荐
Door and Seat Module
The TJA1055T/3/1 is applicable to distributed door, seat, and switch modules that exchange commands over a low-speed CAN network. Its verified in-car communication positioning supports integration where wiring faults and automotive transients are practical concerns. The transceiver should sit between the local controller and the two-wire CAN bus, with protection and layout implemented according to the NXP application guidance. Because the supplied data does not verify detailed ESD ratings or operating-temperature limits, those items must be checked in the datasheet before using the device in a safety-relevant or harsh environment.
推荐
Low-Speed Industrial CAN Adapter
Although optimized for passenger-car networks, the TJA1055T/3/1 may be considered for a legacy industrial CAN interface operating no faster than 125 kBd. Its enhanced fault-tolerant CAN transceiver role can simplify the physical layer between a controller and the bus. Adoption should begin with a full comparison against industrial-specific transceiver requirements, including supply range, EMC, surge immunity, temperature, isolation, and bus fault behavior. The available evidence does not establish industrial qualification, so this is an application assessment rather than a blanket recommendation for safety-critical machinery.
推荐
Low-Speed CAN Test Interface
A bench or vehicle-service interface can use the TJA1055T/3/1 as the CAN physical-layer element when the diagnostic or comfort network operates at or below 125 kBd. It provides the differential CAN transmit and receive path expected by a CAN controller, allowing the adapter to monitor bus activity and exchange messages. For reliable measurements, use correct bus termination, a defined common-mode environment, short differential routing, and the manufacturer-recommended supply decoupling. Any test adapter must also prevent unintended bus loading, and exact I/O and timing margins should be verified from the datasheet.
推荐
推荐产品汇总
工程参考数据： TJA1055T/3/1 ——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 |
|---|---|
| Brand | NXP Semiconductors |
| Package | 14-lead plastic small-outline package |
| Product Type | Enhanced fault-tolerant CAN transceiver |
| Maximum Intended Data Rate | 125 kBd |
| VIO Version | 3 V |
| Differential CAN I/O | Receive and transmit |
| Dual Sourcing | SSMC or ICN8 wafer fab |
| Automotive Positioning | Primarily intended for low-speed passenger-car networks |
| Verified Pin Compatibility | Pin-to-pin compatible with TJA1054 and TJA1054A |
关键差异点
- Purpose-built for low-speed vehicle CAN networks （对比 General-purpose RS-232 interface devices such as MAX3232CD)
- Enhanced fault-tolerant CAN positioning （对比 High-speed CAN transceivers outside the supplied equivalent data)
- Documented legacy footprint compatibility （对比 TJA1054 and TJA1054A)
- 3 V VIO family variant with dual-source identity （对比 Other TJA1055 suffix configurations)
设计说明
Route CANH and CANL as a close differential pair from the transceiver to the bus connector, minimizing stubs and maintaining a continuous return path. Keep the transceiver close to the connector to limit exposure of the high-impedance bus-side pins. Separate slow digital return currents from the CAN pair where practical, and follow the NXP datasheet's recommended application and footprint drawings rather than estimating pad geometry from the package width alone.
Connect the transceiver supply and VIO pins according to the exact /3 datasheet, including the correct decoupling arrangement at each pin. The verified type designation confirms a 3 V VIO version, but it does not provide complete supply-voltage limits in the supplied data. Verify controller logic levels, regulator headroom, startup behavior, and capacitor voltage ratings against the manufacturer document before release.
Do not assume that the family relationship with TJA1054 or TJA1054A guarantees identical operation in every fault condition. NXP explicitly states pin-to-pin compatibility, yet supply range, VIO voltage, timing, standby-state behavior, and protection characteristics still require comparison. Also distinguish TJA1055T/3/1 from TJA1055T/3/1J: the verified NXP community information identifies the J suffix as tape-and-reel packing, not a separate electrical option.
Use two 120-ohm termination resistors only where the network topology requires them, normally as termination at the two physical ends of the CAN bus. Incorrect placement can reduce bus levels and impair fault-tolerant operation. Confirm the network's intended topology and use the NXP application guidance to validate termination, bus length, node count, and fault-recovery assumptions for the specific vehicle platform.
合规信息
The supplied manufacturer and distributor snippets do not explicitly state compliance status. Automotive positioning is verified, but automotive qualification must not be assumed.
