TJA1046TKZ - Dual 5 Mbps CAN Transceiver | NXP
料号： TJA1046TKZ ✓ 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 |
TJA1046TKZ 概述
A CAN transceiver is an interface IC within the network-interface and automotive electronics hierarchy. It converts logic-level TXD and RXD signals from a CAN controller into differential bus voltages, while converting bus levels back into logic-compatible receive signals. A CAN controller handles frames, arbitration, acknowledgments, and protocol error management; the physical-layer transceiver connects that controller to the wired CAN-Bus network.
The verified product information identifies two fully independent TJA1044GT transceiver sections, high-speed automotive CAN operation, differential bus signaling, and standby capability. The dual-channel architecture reduces the component count where two CAN nodes or bus segments must share one physical PCB area. The 14-HVSON package is only 3 mm by 4.5 mm according to the DigiKey listing, supporting compact automotive and industrial electronics layouts without combining two separate transceiver packages.
TJA1046TKZ is appropriate for automotive body, chassis, powertrain-adjacent, and industrial control networks when two high-speed CAN physical-layer interfaces are required. Dual-channel integration can simplify component placement and reduce PCB routing effort, although each channel still requires correct bus termination, common-mode behavior, electromagnetic-compatibility layout, and decoupling. The CAN bus must use twisted-pair wiring and appropriate 120-ohm termination where specified by the network design.
The principal design consideration is to follow NXP's specified pin, supply, ground, input, output, and exposed-pad connections exactly. Each transceiver must be placed close enough to its connector or bus interface for short differential traces, while analog and power-return paths should remain appropriately partitioned. Because the supplied search results do not expose complete electrical limit tables, pin mapping, package dimensions, or absolute maximum ratings, engineers should use the official NXP TJA1046 datasheet for final schematic and layout sign-off.
This page consolidates the verified NXP product description, distributor package identification, official datasheet link, purchasing sources, and replacement-validation gaps. It also distinguishes confirmed dual 5 Mbps CAN functionality from unverified assumptions about voltage tolerances, loop delay, bus fault handling, and exact exposed-pad requirements.
TJA1046TKZ 规格参数
| Product Type | Dual high-speed CAN transceiver |
| Number of CAN Channels | 2 independent channels |
| Maximum CAN Data Rate | 5 Mbps |
| CAN Bus Configuration | Differential two-wire CAN bus |
| Internal Transceiver Sections | 2 x TJA1044GT transceivers |
| Power-Saving Mode | Standby mode |
| Supply Voltage Variant | 5.25 V part-number variant |
| 封装 | 14-HVSON |
| Package Dimensions | 3 mm x 4.5 mm |
| 安装类型 | Surface mount |
| Application Category | Automotive high-speed CAN |
| Transmit and Receive Signaling | Differential |
| Controller Interface | CAN protocol controller to physical CAN bus |
| Channel Independence | Two fully independent interfaces |
TJA1046TKZ 3 mm x 4.5 mm 引脚配置指南
TJA1046TKZ（3 mm x 4.5 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： TJA1046TKZ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TJA1046TKZ 适用于 6 应用s: Automotive Electronic Control Units, Vehicle Body and Chassis Control, Industrial Machine Networking, Robotics and Autonomous Equipment, Industrial Gate and Access Systems, Test and Measurement Control Systems.
Automotive Electronic Control Units
The TJA1046TKZ fits an automotive electronic control unit that must communicate with two separate CAN networks through one compact package. Its two fully independent TJA1044GT sections support differential CAN transmit and receive paths at rates up to 5 Mbps, reducing the need for two discrete transceiver packages. The 14-HVSON package measures 3 mm by 4.5 mm according to the verified distributor listing, which supports dense controller-board layouts. Final design work must follow the official NXP pinout and layout guidance, particularly for bus routing, ground continuity, decoupling, and exposed-pad connection.
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Vehicle Body and Chassis Control
A vehicle body or chassis controller can use the TJA1046TKZ when separate high-speed CAN buses serve functions such as doors, lighting, climate systems, or chassis communication. Two independent channels permit separate physical-layer interfaces while supporting communication up to 5 Mbps. The transceiver handles the physical-layer differential signaling, leaving framing, arbitration, and protocol-error handling to the CAN controller. Designers should preserve short CANH and CANL routing, use twisted-pair wiring in the harness, and validate termination and electromagnetic behavior at the vehicle system level.
推荐
Industrial Machine Networking
The TJA1046TKZ can connect an industrial controller to two high-speed CAN segments when machine subsystems need independent communication paths. Its dual-channel configuration reduces component count, while differential signaling supports reliable wired-bus operation over distances and noise conditions defined by the CAN system. Use a CAN controller such as the listed MCP2517FD-H/SL at the protocol layer and isolate transceiver placement from high-current switching stages. The network designer must validate bus length, topology, termination, fault recovery, grounding, and EMC performance for the installation.
推荐
Robotics and Autonomous Equipment
A robot or autonomous platform can use the TJA1046TKZ to bridge two high-speed CAN buses linking motion, sensing, and safety-related subsystems. The dual-channel arrangement supports two independent physical-layer interfaces at rates up to 5 Mbps and occupies a compact 14-HVSON footprint. Differential CAN signaling is useful in electrically noisy mobile equipment, but harness routing remains critical: CANH and CANL should run as a pair, avoid discontinuities, and connect to protected connectors. Firmware must coordinate both channels without treating the shared device as a single bus.
推荐
Industrial Gate and Access Systems
A dual-channel gate or access controller can use the TJA1046TKZ when local motor and safety networks are both based on high-speed CAN. The dual transceiver integrates two independent physical interfaces in a 3 mm by 4.5 mm package, helping preserve PCB area for power and communications circuitry. The design must provide each bus with the required termination and maintain a continuous low-impedance return path. Because the supplied data does not state industrial temperature limits or fault-handling thresholds, these details must be checked in the manufacturer datasheet before field deployment.
推荐
Test and Measurement Control Systems
The TJA1046TKZ can serve as a dual CAN physical-layer interface in automated test equipment or a measurement controller that must coordinate two external high-speed CAN devices. NXP describes the device as a differential high-speed transceiver for automotive CAN, with fully independent channels and standby support. Bench-system use may benefit from standby for controlled operating states, but the exact mode-control levels and timing must come from the official datasheet. Separate bus routing, connector protection, and termination should be tested with realistic cable lengths and interference sources.
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推荐产品汇总
工程参考数据： TJA1046TKZ ——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-HVSON |
| Package Dimensions | 3 mm x 4.5 mm |
| CAN Channels | 2 independent channels |
| Maximum Data Rate | 5 Mbps |
| Bus Signaling | Differential two-wire CAN |
| Low-Power Feature | Standby mode |
| Internal Architecture | Two fully independent TJA1044GT transceivers |
| Lifecycle Status | Active |
关键差异点
- Two physically independent CAN interfaces in one package （对比 A typical single-channel CAN transceiver)
- High-speed differential CAN operation （对比 A lower-speed or single-interface alternative)
- Compact board area （对比 Two discrete 8-pin or similarly packaged CAN transceivers)
- Standby support （对比 A continuously operating transceiver without verified standby)
设计说明
Route each CANH/CANL differential pair as a tightly coupled pair with continuous reference return. Keep the routes short from the transceiver to the connector, avoid splits and long unprotected stubs, and place optional network termination only where the bus topology calls for it. The supplied search data confirms differential dual-channel operation but does not supply the manufacturer's layout drawing, so final spacing, via, and isolation rules must come directly from the NXP TJA1046 datasheet.
Do not finalize the PCB footprint from the description '14-HVSON' alone. Download the NXP package drawing and cross-check pin numbering, terminal lengths, pitch, exposed-pad dimensions, solder-mask policy, paste pattern, and land pattern. TJA1046TKZ has 14 package leads but may also require an exposed thermal or ground connection that is not counted as a lead. This information was absent from the verified snippets, so the official mechanical drawing is required before release.
Follow the manufacturer's recommended supply capacitance and component placement exactly. Place decoupling capacitors close to the relevant device and transceiver pins, preserve a low-impedance supply and ground return, and isolate noisy switching-current paths from CAN receive and reference-ground connections. The provided data confirms a 5.25 V ordering variant and standby mode but does not reveal current consumption, capacitor values, or undervoltage behavior; those values must be verified in the official datasheet.
Do not treat TJA1046TK and TJA1046TKZ as drop-in parts merely because both belong to the TJA1046 family. Likewise, a generic dual-CAN IC is not a substitute unless its package, pinout, mode-control logic, supply range, bus fault behavior, and timing all match. The supplied cross-reference results did not verify a pin-compatible replacement, so use the official TJA1046TKZ datasheet and a signed component-comparison report before approving an alternative.
合规信息
The verified search results describe automotive suitability but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. These fields remain unknown rather than being inferred from the application description.
