TJA1448BT/0Z - Dual 5Mbps CAN FD Transceiver | NXP
Артикул: TJA1448BT/0Z ✓ АктивенTJA1448BT/0Z Обзор
A CAN transceiver is the physical-layer interface between a digital CAN or CAN FD controller and a differential two-wire bus. It converts controller logic levels into CAN bus signals and reconstructs received bus information for the controller. Within the power-management and semiconductor hierarchy, the TJA1448 belongs to the CAN interface IC class, supports ISO 11898-2:2016 physical-layer operation, and is interoperable with high-speed CAN systems.
The TJA1448BT/0Z includes Normal and Standby operating modes, low-power operation, wake-up support, transmitter-dominant timeout, electrostatic-discharge protection, undervoltage protection, and thermal shutdown protection. Its VIO interface allows direct connection to either 3.3 V or 5 V microcontrollers, reducing the need for level-shifting circuitry when the transceiver and controller use different logic voltages.
The device supports Classical CAN and CAN FD signaling at data rates up to 5 Mbit/s. Two integrated channels make it suitable for systems that need two CAN bus connections without using separate single-channel transceivers. Its high-temperature operating range supports industrial, automotive, and communications equipment where the ambient enclosure temperature may substantially exceed conventional commercial limits.
Typical uses include automotive body and powertrain electronics, industrial automation equipment, building automation gateways, CAN-based sensors, robotics, and embedded control systems. In a dual-channel installation, each channel connects to a separate CAN FD controller interface and its associated differential bus wiring while sharing the device supply and operating-mode controls.
Designers should preserve the datasheet-defined decoupling and bus-termination layout, validate logic compatibility at VIO, and verify that the PCB footprint matches the 14-pin SOIC outline. The standby and wake-up functions should be checked against the controller's power-management strategy so the remote node can enter low-power operation without preventing required bus communication.
This page combines the manufacturer identification, package and feature information, replacement context, comparison parameters, and application-oriented design guidance into a concise engineering reference for selecting and implementing the TJA1448BT/0Z.
Аналоги без доработки для TJA1448BT/0Z — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с TJA1448BT/0Z (тот же форм-фактор и посадочное место) — отличается по Mounting Type, Number of Channels, Package.
TJA1059TK
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Открыть даташит →TJA1448BT/0Z Характеристики
| Product Type | Dual CAN FD transceiver |
| Number of Channels | 2 channels |
| Maximum CAN FD Data Rate | 5 Mbit/s |
| Supply Voltage Range | 4.5 V to 5.5 V |
| VIO Logic Voltage | 3.3 V or 5 V |
| Диапазон рабочих температур | -40°C to +150°C |
| Корпус | 14-pin SOIC |
| Тип монтажа | Surface mount |
| Bus Interface | Two-wire differential CAN bus |
| Protocol Support | Classical CAN and CAN FD |
| Physical Layer Standard | ISO 11898-2:2016 |
| Automotive Interface Standards | SAE J2284-1 through SAE J2284-5 |
| Operating Modes | Normal and Standby modes |
| Low-Power Feature | Low-power mode with wake-up function |
| Fault Protection | ESD protection, undervoltage protection, and thermal shutdown protection |
| Transmitter Protection | TXD dominant timeout |
| Статус RoHS | RoHS compliant |
| Статус жизненного цикла | Active |
| Manufacturer Datasheet Length | 38 pages |
Руководство по цоколевке TJA1448BT/0Z в корпусе 14-pin soic
Цоколевка для TJA1448BT/0Z (корпус 14-pin soic). Нумерация выводов, функции и схемы подключения определены в техническом описании производителя. Обратитесь к нему для точного посадочного места и рекомендаций по пайке.
Нет подробных данных о распиновке для TJA1448BT/0Z.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
TJA1448BT/0Z подходит для 6 применениеs: Automotive Body Control Networks, Industrial Automation Gateways, CAN FD Sensor Backbone, Building Automation Equipment, Robotics and Mobile Platforms, Industrial Communication Modules.
Automotive Body Control Networks
The TJA1448BT/0Z fits dual-channel automotive body and comfort networks because it combines two CAN physical-layer channels with a 5 Mbit/s CAN FD capability and an operating range of -40°C to +150°C. Its 3.3 V or 5 V VIO interface can connect directly to compatible automotive controllers, while ESD, undervoltage, and thermal-shutdown protection support harsh electrical environments. The designer should still verify transient immunity, bus fault behavior, and all applicable OEM qualification requirements against the final power architecture.
Рекомендуется
Industrial Automation Gateways
A dual-channel TJA1448BT/0Z can connect an industrial gateway or PLC to two separate CAN FD networks while sharing one 14-pin SOIC footprint and 4.5 V to 5.5 V supply. Supporting rates up to 5 Mbit/s provides useful bandwidth for machine-control and sensor networks, while VIO compatibility supports both 3.3 V and 5 V controller logic. Implement 120-ohm termination only where required by the bus topology, and test behavior during bus-off, recessive, dominant, and wake-up conditions.
Рекомендуется
CAN FD Sensor Backbone
The TJA1448BT/0Z is suitable for a dual CAN FD sensor backbone because it can carry data at rates up to 5 Mbit/s and includes low-power and wake-up functions for intermittently operating nodes. The two integrated channels can organize one bus for sensors and another for actuators or gateway traffic, reducing component count compared with two separate transceivers. Validate bus-inactive detection, wake-up timing, dominant timeout, and cable-length limitations for each operating mode in the final system.
Рекомендуется
Building Automation Equipment
The TJA1448BT/0Z can support building automation controllers that exchange high-speed CAN FD traffic between floor modules, access equipment, and energy-management subsystems. Its dual-channel architecture permits two independent bus connections within one compact SOIC-14 device, and the wide -40°C to +150°C range supports equipment exposed to variable enclosure temperatures. Standby mode can reduce consumption when traffic is absent, but the controller must wake the transceiver correctly for periodic or event-driven communication.
Рекомендуется
Robotics and Mobile Platforms
The TJA1448BT/0Z fits robot motor controllers and mobile platforms that need two CAN FD links for separate actuator, sensor, or safety-related networks. Its 5 Mbit/s capability supports responsive control traffic, and VIO operation at 3.3 V or 5 V simplifies connection to different controller families. Keep the CANH and CANL routing symmetrical, maintain the specified decoupling layout, and verify propagation delay and bus timing margins when the platform contains long cables or multiple nodes.
Рекомендуется
Industrial Communication Modules
The TJA1448BT/0Z is appropriate for CAN-to-Ethernet, CAN-to-wireless, and data-acquisition modules that require two physical CAN channels. The integrated transceivers support CAN FD rates up to 5 Mbit/s, while Normal and Standby modes provide controllable power states for compact embedded modules. The VIO pin allows direct interfacing with 3.3 V or 5 V microcontrollers. Firmware should coordinate bus-off recovery, wake-up, and dominant-timeout handling so communication recovery does not conflict with module safety requirements.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для TJA1448BT/0Z — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | TJA1059 |
|---|---|---|
| Manufacturer | NXP Semiconductors | NXP Semiconductors |
| Package | SOIC-14 | SOIC-14 |
| Number of Channels | 2 | 2 |
Ключевые отличия
- Adds low-power system features to a dual CAN FD physical layer (против TJA1059)
- Combines two CAN FD channels with a 5 Mbit/s capability (против TJA1059)
- Supports direct 3.3 V or 5 V controller interfacing (против TJA1059)
- Integrates multiple system protections (против TJA1059)
Заметки по проектированию
Use the 14-pin SOIC land pattern and follow the NXP datasheet's recommended component and decoupling placement. Place the supply and ground connections directly on the pins specified for those functions, keep the CANH and CANL traces short and symmetrical, and avoid routing either bus trace beneath or between unrelated high-current switching paths. The 120-ohm termination resistor belongs across CANH and CANL at each bus endpoint rather than at every node.
Design the 4.5 V to 5.5 V main supply with suitable local decoupling and verify startup and shutdown behavior across the complete voltage range. The VIO pin supports 3.3 V or 5 V controller interfacing, but VIO and the main supply are distinct constraints: a valid VIO level does not permit operation outside the 4.5 V to 5.5 V main-supply specification. Confirm controller levels, reset sequencing, and standby control states before releasing the board into production.
Do not treat the TJA1059 replacement statement as permission to substitute every family member or suffix without review. The TJA1448BT/0Z includes Standby, wake-up, dominant-timeout, undervoltage, and thermal-shutdown functions whose exact pin behavior and timing must remain compatible with the existing controller firmware. Confirm the specific replacement ordering code, package footprint, VIO arrangement, bus timing, and protection requirements before approving a drop-in swap.
Maintain a compact CAN bus escape from the transceiver because differential trace geometry affects signal integrity. Route CANH and CANL as a closely coupled pair on the same PCB layer where practical, with continuous reference planes and matched spacing. Keep the termination footprint accessible for configuration, and avoid placing test points or stubs that materially unbalance the pair. Validate the completed routing for reflections and compliance with the selected CAN FD data rate.
Информация о соответствии
The distributor product listing identifies the TJA1448BT/0Z as RoHS compliant. RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status are not independently established beyond that statement.