TJA1448ATK/0Z - 5 Mbps Dual CAN FD Transceiver | NXP
料号： TJA1448ATK/0Z ✓ 量产中TJA1448ATK/0Z 概述
A CAN transceiver is the physical-layer interface between a CAN or CAN FD protocol controller and a two-wire CAN bus. In the wider electronics hierarchy, a transceiver belongs to the interface-IC family, where it converts controller logic levels into bus-compatible signals and converts bus activity into logic-level receive data. The TJA1448ATK/0Z combines two channels in one package, allowing one controller or gateway to connect to two independent CAN buses or to two channels of the same network.
Key features include dual-channel CAN FD operation, a maximum supported data rate of 5 Mbps, and a 4.5 V to 5.5 V operating-supply range. The device is identified as a 2/2 transceiver half CANbus device in the 14-HVSON 3 x 4.5 mm package. The exposed-pad package construction supports compact automotive PCB layouts while providing an effective thermal path when the board is designed with suitable copper area.
The TJA144x family is designed as a drop-in replacement for high-speed classic CAN and CAN FD transceivers, helping preserve hardware and software architecture when upgrading a communication link. The standby mode provides a controlled operating state for systems where the bus interface must be disabled or managed according to the vehicle or equipment power state. Bus wakeup support is useful in distributed automotive systems where a node must detect bus activity before returning to a fully active state.
Typical applications include automotive CAN FD gateways, body-control modules, electric-vehicle communication networks, industrial vehicle systems, and embedded CAN FD controllers. The dual-channel arrangement can reduce board area when two CAN links are required, while the 5 Mbps capability supports higher-throughput CAN FD payloads and diagnostics.
Designers should use the manufacturer's pin description table and recommended connection details when assigning PCB tracks. Decoupling capacitors should be placed close to the supply pins, and the exposed thermal pad should be connected according to the package land-pattern guidance. The CAN bus conductors and ground-return path require careful high-speed layout planning, including controlled impedance and minimized loop area.
This product page combines the NXP TJA1448 family information, package details, verified distributor references, and practical interface-design guidance to support component selection, PCB implementation, and drop-in replacement evaluation.
直接替换替代料： TJA1448ATK/0Z ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
TJA1448ATK/S1Z
✅ 直接替换📋 参考替代料（不在目录中）
TJA1448ATK/0Z 规格参数
| Product Type | Dual high-speed CAN and CAN FD transceiver |
| Number of Channels | 2 channels |
| Supported Data Rate | Up to 5 Mbps |
| Supply Voltage Range | 4.5 V to 5.5 V |
| 工作温度范围 | -40 °C to +150 °C |
| 静态电流 | 2 µA |
| Standby Current | 120 mA |
| 封装 | 14-HVSON-EP (3 x 4.5 mm) |
| 安装类型 | Surface Mount |
| Transceiver Configuration | 2/2 transceiver half CANbus |
| Bus Wakeup | Supported |
| Fault Protection | Advanced fault protection |
| Protocol Support | CAN and CAN FD |
| Bus Interface | Two-wire CAN bus |
| RoHS 状态 | Compliant |
| 生命周期状态 | Active |
| 引脚数量 | 14 pins |
| Exposed Thermal Pad | Present |
| Manufacturer | NXP Semiconductors |
TJA1448ATK/0Z 14-hvson-ep (3 x 4.5 mm) 引脚配置指南
TJA1448ATK/0Z（14-hvson-ep (3 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： TJA1448ATK/0Z.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TJA1448ATK/0Z 适用于 6 应用s: Automotive CAN FD Gateway, Body Control Module, Electric Vehicle Communication, Industrial Vehicle CAN Network, CAN FD Test and Diagnostic Interface, Distributed Automotive Node.
Automotive CAN FD Gateway
The TJA1448ATK/0Z is suitable for an automotive gateway that must connect a CAN FD controller to two vehicle bus domains. Its dual-channel arrangement reduces the number of physical interface sections, while the 5 Mbps capability supports CAN FD data exchange. The 4.5 V to 5.5 V operating range suits regulated 5 V vehicle electronics. Place the transceiver near the bus connectors, maintain controlled differential-impedance routing, and connect the exposed pad to the recommended thermal-pad via pattern.
推荐
Body Control Module
A body-control module can use the two channels of the TJA1448ATK/0Z for distributed vehicle functions such as door, lighting, climate, or diagnostic communication. The device provides standby mode for controlled power management and supports bus wakeup for distributed automotive networks. Its -40 °C to +150 °C operating range is appropriate for harsh vehicle environments. The design should isolate each bus pair cleanly and follow NXP's PCB layout and exposed-pad recommendations.
推荐
Electric Vehicle Communication
The TJA1448ATK/0Z can interface CAN FD links in electric-vehicle battery, inverter, charger, or thermal-management systems. Two channels allow one controller to communicate with separate vehicle domains while retaining a compact 3 x 4.5 mm footprint. Data rates up to 5 Mbps suit modern CAN FD traffic and diagnostics. Designers should verify bus topology, termination, fault behavior, and wakeup configuration against the NXP application guidance before release.
推荐
Industrial Vehicle CAN Network
The TJA1448ATK/0Z fits CAN FD gateways and controllers used in industrial vehicles, where two channels can link a master controller to separate equipment networks. Its 5 Mbps maximum data rate supports faster diagnostics and control traffic, while standby mode helps manage operating states. The -40 °C to +150 °C range supports demanding equipment environments. Use short differential routes, controlled return paths, and careful connector-to-transceiver placement to preserve signal integrity.
推荐
CAN FD Test and Diagnostic Interface
A bench diagnostic interface can use the TJA1448ATK/0Z to expose two independent CAN FD channels to a host controller. Supporting rates up to 5 Mbps enables testing of nodes that use CAN FD payload phases as well as classic CAN traffic. The two-channel package simplifies multi-bus measurement hardware and reduces connector wiring when both buses terminate near the interface board. Protection, grounding, and bus isolation must be evaluated separately from the transceiver's own specifications.
推荐
Distributed Automotive Node
The TJA1448ATK/0Z can support a distributed node that listens for activity on CAN buses and wakes the surrounding system. Bus wakeup helps the node transition from standby to active operation when relevant bus traffic appears, while the 5 Mbps capability accommodates CAN FD communication. Its wide -40 °C to +150 °C range supports automotive placement. Firmware should coordinate the standby and wakeup behavior with the CAN controller and power-management strategy.
推荐
推荐产品汇总
工程参考数据： TJA1448ATK/0Z ——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 | TJA1448ATK/S1Z |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Package | 14-HVSON-EP (3 x 4.5 mm) | 14-HVSON (3 x 4.5 mm) |
| Transceiver Channels | 2 channels | 2 channels |
| Supported Data Rate | Up to 5 Mbps | Up to 5 Mbps |
| Standby Mode | Yes | Yes |
| Protocol | CAN and CAN FD | CAN and CAN FD |
关键差异点
- Two CAN FD channels in one 3 x 4.5 mm package （对比 TJA1448ATK/S1Z)
- Standby and bus-wakeup functionality （对比 TJA1448ATK/S1Z)
- Automotive temperature capability （对比 TJA1448ATK/S1Z)
设计说明
Follow the NXP TJA1448 recommended layout for the 14-HVSON-EP package. Place the transceiver close to the CAN connector, route CANH and CANL as a controlled-impedance differential pair, minimize vias and stubs, and provide a continuous ground-reference path beneath and alongside the pair. Keep the two channel routes physically separated where practical to reduce crosstalk.
Decouple the transceiver supply close to its supply pins with low-inductance ceramic capacitance and provide adequate local copper for transient current. Keep the 4.5 V to 5.5 V operating range in mind when selecting the regulator tolerance. Place the exposed pad over a continuous thermal and ground-copper region with the via pattern recommended by NXP.
Treat both CAN channels as high-speed differential interfaces. Avoid routing over discontinuous reference planes, splitting the return path, or adding unnecessary test-point stubs. Check termination and stub arrangements in the complete bus topology rather than treating the transceiver footprint in isolation. Use the manufacturer's timing and bus configuration guidance when validating 5 Mbps operation.
Do not assume that the standby current and quiescent current describe the same operating condition; the listed values are 120 mA and 2 µA, respectively. Review the NXP data sheet for mode definitions, external components, pin states, and fault behavior. Also verify that the selected /0Z ordering code meets the exact temperature, qualification, and packaging requirements of the finished system.
合规信息
The LCSC product listing identifies TJA1448ATK/0Z as RoHS compliant. Other compliance fields are not established in the cited product information.
