TJA1055T/3/1J - 125 kBd Fault-Tolerant CAN Transceiver | NXP
部品番号: TJA1055T/3/1J ✓ 生産中TJA1055T/3/1J 概要
A CAN transceiver is the physical-layer interface between a CAN protocol controller and the differential CAN bus. It converts controller logic signals into CANH and CANL bus activity and converts differential bus voltage into a receive signal. Positioned within the hierarchy of CAN interface ICs, transceiver ICs, interface ICs, and semiconductors, the TJA1055T provides the electrical interface required to connect digital controllers to a robust in-vehicle communication network.
The TJA1055T/3/1J provides operation at data rates up to 125 kBd, differential receive and transmit functions, and sleep or standby operating modes for reduced power consumption. Its supply-voltage coverage supports systems operating from 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, and 28 V environments. The /3 order-code variant provides a 3 V VIO interface, allowing compatibility with controllers or logic domains using a lower supply voltage.
The device uses differential bus signaling to provide common-mode rejection and improve robustness against noise found in vehicle electrical environments. Its fault-tolerant design is intended for low-speed CAN networks in passenger cars rather than high-bandwidth automotive Ethernet or high-speed CAN FD systems. The 14-pin SO package supports compact surface-mount assembly while exposing the controller interface, bus interface, power, ground, and control connections required by the device architecture.
Typical applications include vehicle body-control modules, door and seat controllers, climate-control interfaces, lighting controllers, comfort systems, and distributed low-speed passenger-car networks. The combination of a 125 kBd maximum data rate, broad supply range, sleep or standby support, and 3 V VIO option makes the TJA1055T/3/1J appropriate where a 3.3 V controller must communicate with a conventional 12 V or 24 V vehicle CAN network.
When designing the PCB layout, treat CANH and CANL as a controlled-impedance differential pair routed as symmetrically as practical, with a continuous return path beneath the pair. Keep the transceiver close to the bus connector or bus-header, minimize stub branches, and follow the grounding and decoupling recommendations in the manufacturer datasheet. Component values and layout distances not present in the supplied source extract remain unverified and must be confirmed from the complete NXP datasheet before release.
This page consolidates the verified NXP product information, distributor listings, order-code distinctions, and package data for TJA1055T/3/1J. It also distinguishes confirmed drop-in references from unsupported cross-brand equivalents, highlights verified design parameters, and clearly identifies pricing, pin-mapping, and detailed electrical values that still require confirmation.
ドロップイン代替品: TJA1055T/3/1J — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: TJA1055T/3/1J （同一形状・フットプリント） — 相違点: Package.
TJA1054T/3/C,512
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TJA1054AT/3/C,512
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TJA1055T/3/1J 仕様
| Product Type | Enhanced fault-tolerant CAN transceiver |
| Maximum CAN Data Rate | 125 kBd |
| Main Supply Voltage Range | 5 V to 28 V |
| Supported Vehicle Supply Levels | 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, and 28 V |
| VIO Supply Voltage | 3 V |
| Transmit Capability | Differential |
| Receive Capability | Differential |
| Low-Speed Use Case | Up to 125 kBd in passenger cars |
| Power-Saving Modes | Sleep and standby |
| パッケージ | 14-pin SO |
| Package Type | Tape and reel |
| 実装タイプ | Surface mount |
| Automotive Qualification | AEC-Q100 |
TJA1055T/3/1J tape and reel ピン配置ガイド
TJA1055T/3/1J (tape and reel パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: TJA1055T/3/1J.
詳細は データシート をご参照ください。
主な用途
TJA1055T/3/1J の用途: 6 件s: Vehicle Body Control Modules, Door and Seat Comfort Systems, Climate Control Interfaces, Automotive Lighting Control, Industrial CAN Gateway Equipment, Low-Speed Diagnostic and Service Networks.
Vehicle Body Control Modules
The TJA1055T/3/1J fits distributed body-control electronics that communicate over low-speed passenger-car CAN networks. Its 125 kBd maximum data rate matches low-bandwidth tasks such as switch status, actuator commands, and sensor reporting, while the 5 V to 28 V main supply range supports vehicle electrical environments. The 3 V VIO option lets the transceiver connect with a 3.3 V controller domain. Its enhanced fault-tolerant architecture and AEC-Q100 listing are useful when the PCB must tolerate electrical faults on the two-wire bus without replacing the complete controller.
おすすめ
Door and Seat Comfort Systems
Door modules, seat controllers, and comfort-system nodes commonly use low-speed CAN to exchange commands among distributed controllers. TJA1055T/3/1J supports data rates up to 125 kBd, which is sufficient for these supervisory and diagnostic functions rather than multimedia traffic. The device's differential CAN interface provides the physical layer for the bus, and the 3 V VIO version can simplify connection to a 3.3 V embedded controller. Because automotive wiring may experience shorts and transients, the fault-tolerant TJA1055 behavior is more relevant than raw throughput when selecting this transceiver.
おすすめ
Climate Control Interfaces
A climate-control module can use the TJA1055T/3/1J as the physical interface for exchanging temperature requests, fan commands, and status data over a low-speed vehicle CAN network. Its operation up to 125 kBd is appropriate for supervisory control traffic, while the broad 5 V to 28 V supply range supports the vehicle battery domain. The 3 V VIO interface enables a lower-voltage controller to operate alongside the conventional vehicle supply. Design implementation should include bus-fault validation, suitable transceiver decoupling, and controlled routing of CANH and CANL from the module connector to the transceiver.
おすすめ
Automotive Lighting Control
Exterior and interior lighting controllers can use TJA1055T/3/1J for distributed CAN communication among lamp modules, switches, and central body controllers. The 125 kBd limit is more than adequate for lighting commands and diagnostics because these systems exchange compact status information rather than continuous sensor streams. A 3 V VIO interface permits use with a 3.3 V controller, while the main supply side accommodates vehicle supply systems. The TJA1055's fault-tolerant bus interface is relevant to cable faults and noisy vehicle harnesses, provided the complete board and protection network meet the applicable automotive design requirements.
おすすめ
Industrial CAN Gateway Equipment
The TJA1055T/3/1J can be used in a low-speed CAN gateway that bridges vehicle or mobile equipment to a control system, provided the electrical environment remains within the device's verified operating limits. Its support for 125 kBd communication is suitable for status, diagnostic, and supervisory data, while differential signaling improves noise immunity on longer harnesses. The 3 V VIO option also simplifies interfacing with modern embedded controllers. Engineers should verify that industrial transients, ground offsets, and isolation requirements do not exceed the complete NXP absolute-maximum and application specifications.
おすすめ
Low-Speed Diagnostic and Service Networks
TJA1055T/3/1J can participate in diagnostic communication paths where modules exchange fault codes, operating states, and service commands over a low-speed CAN bus. The 125 kBd data-rate ceiling is consistent with the intended passenger-car applications and with networks dominated by diagnostic traffic rather than bulk data. Its enhanced fault-tolerant architecture helps maintain interface operation under bus faults, while sleep and standby functions can reduce consumption in parked or partially active systems. Diagnostic tools must confirm that the target network speed, termination strategy, and fault behavior match the specific vehicle implementation.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: TJA1055T/3/1J — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | TJA1054T/3/C,512 | TJA1054AT/3/C,512 |
|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 14-pin SO | 14-pin SO | 14-pin SO |
| VIO Supply Voltage | 3 V | 3 V VIO order variant | 3 V VIO order variant |
| Documented Pin Compatibility | Pin-to-pin compatible with TJA1054 and TJA1054A | Confirmed by the NXP TJA1055 datasheet | Confirmed by the NXP TJA1055 datasheet |
主な差別化要因
- Enhanced fault-tolerant CAN interface （vs TJA1054T/3/C,512)
- Three-volt VIO controller interface （vs TJA1054T/3/C,512)
- Purpose-built low-speed passenger-car positioning （vs TJA1054AT/3/C,512)
設計ノート
Route CANH and CANL as a closely coupled differential pair with symmetrical routing and a continuous reference plane beneath the pair. Minimize changes in layer transitions, vias, and impedance discontinuities, and avoid long unprotected branches from the transceiver to the bus connector. Keep the connector or header close to the transceiver so that external fault energy is not coupled into sensitive logic traces. Exact trace geometry must be calculated from the selected PCB stack-up and the complete NXP application guidance.
Separate the 3 V VIO supply domain from the 5 V to 28 V main supply domain in the power tree and verify every capacitor, regulator, and digital device against the appropriate rail. Place the transceiver's required input and output decoupling capacitors directly beside their associated pins, with very short ground paths. Do not copy generic capacitor values from an unrelated CAN device; confirm the recommended values, voltage ratings, tolerances, and ESR requirements in the full TJA1055 data sheet.
Keep the CAN bus interface away from clocks, switching regulators, high-current inductors, and other potential sources of common-mode noise. Maintain a compact ground connection around the transceiver, and avoid sharing narrow ground paths between the bus return and sensitive controller circuitry. If galvanic isolation is required, the TJA1055T/3/1J is not an isolation device; use an appropriately rated isolated CAN interface instead. Verify whether the target network requires bus termination and place any required termination only at the designated network endpoints.
Do not assume that every 14-pin SO CAN transceiver is a drop-in replacement. The NXP TJA1055 data sheet explicitly confirms pin compatibility with TJA1054 and TJA1054A, but the verified extract does not establish identical fault behavior, timing, mode controls, or electrical limits for every alternative. Compare the complete data sheets, confirm the 3 V VIO configuration, and check unused pins and mode-control states before releasing a substitution into production.
コンプライアンス情報
AEC-Q100 qualification is identified by the Arrow distributor listing. RoHS, REACH, lead-free, halogen-free, and conflict-minerals statuses were not explicitly established in the supplied verified extract.
