TJA1442ATK/0Z - 5 Mbit/s CAN Transceiver | NXP | Automotive
Артикул: TJA1442ATK/0Z ✓ АктивенTJA1442ATK/0Z Обзор
A CAN transceiver, also called a CAN physical-layer transceiver, converts logic-level TXD and RXD signals into differential CAN bus signaling and converts received bus signals back into a digital receive output. It sits between the CAN controller and the CANH and CANL conductors within the broader hierarchy of network interface ICs, communication transceivers, and semiconductor interface devices. This interface function allows a microcontroller or dedicated CAN controller to communicate reliably over a wired vehicle or industrial network.
The TJA1442ATK/0Z supports data rates up to 5 Mbit/s and operates with a 5 V supply. The part includes a Standby mode, allowing the system to reduce activity when bus communication is not required. The VIO supply input supports I/O-level adaptation for the TXD and RXD interface. Its 8-HVSON package with exposed pad supports compact PCB layouts and provides a thermal land for heat dissipation.
The device implements the CAN physical layer defined by ISO 11898-2:2016 and is interoperable with SAE J2284-1 through SAE J2284-5 high-speed CAN networks. The exposed-pad arrangement helps spread heat through the PCB copper, but the final thermal performance still depends on the power dissipated, copper area, and thermal design of the assembled board. The TJA1442ATK/0Z is identified as an active NXP automotive part and is supplied in an automotive, AEC-Q100-oriented ordering configuration.
Typical applications include automotive body-control modules, electric-vehicle control units, gateway controllers, lighting and climate-control electronics, industrial automation equipment, and CAN-based sensor nodes. In these systems, the transceiver provides the physical layer between the host controller and the two-wire bus while the standby function supports power-conscious operating states. The CAN FD capability makes it useful for mixed classical CAN and CAN FD networks.
For PCB design, place the transceiver close to the bus connector and controller interface, route CANH and CANL as a balanced pair, and provide the decoupling and protection required by the application. Respect the maximum bus and supply voltages, use an appropriately sized common-mode choke or protection network when required, and confirm that the exposed pad is connected to the intended ground plane. Verify all timing, slew-rate, and bus-loading conditions against the manufacturer datasheet before production release.
Аналоги без доработки для TJA1442ATK/0Z — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
TJA1441ATK/0Z
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TJA1442ATK/0Z Характеристики
| Product Type | High-speed CAN transceiver with Standby mode |
| Supported Protocol | CAN and CAN FD |
| Maximum Data Rate | 5 Mbit/s |
| Напряжение питания | 5 V |
| I/O Supply Input | VIO supply voltage input for I/O level adaptation |
| Корпус | 8-HVSON (3 x 3 mm) |
| Тип монтажа | Surface mount |
| CAN Physical-Layer Standard | ISO 11898-2:2016 |
| Automotive Interoperability Standards | SAE J2284-1 to SAE J2284-5 |
| Transceiver Configuration | 1/1 transceiver, half CANbus |
| Exposed Pad | Present |
| Standby Function | Yes |
| TXD Pin | Pin 1, transmit data input |
| GND Pin | Pin 2 |
| VCC Pin | Pin 3, 5 V supply voltage input |
| RXD Pin | Pin 4, receive data output |
| VIO Pin | Pin 6, I/O-level adapter supply voltage input |
| Pin 5 | Not connected |
| Статус жизненного цикла | Active |
| Automotive Qualification | AEC-Q100 |
Конфигурация выводов TJA1442ATK/0Z
| Контакт 1 | TXD — Transmit data input from the CAN controller |
| Контакт 2 | GND — Ground connection |
| Контакт 3 | VCC — 5 V supply voltage input |
| Контакт 4 | RXD — Receive data output to the CAN controller |
| Контакт 5 | NC — Not connected |
| Контакт 6 | VIO — Supply voltage input for the I/O level adapter |
| Контакт 7 | NC — Not connected |
| Контакт 8 | GND — Ground and exposed-pad connection |
Типичное применение
TJA1442ATK/0Z подходит для 6 применениеs: Automotive Body Control Module, Vehicle Gateway Controller, Electric Vehicle Control Unit, CAN-Based Sensor Node, Industrial Automation Controller, CAN FD Communication Module.
Automotive Body Control Module
The TJA1442ATK/0Z is suitable for the CAN communication link in an automotive body-control module because it supports CAN and CAN FD traffic up to 5 Mbit/s while operating from a 5 V supply. Its Standby mode helps the controller remain manageable during low-activity vehicle states, and the 8-HVSON package keeps the footprint compact. The transceiver sits between the module MCU or CAN controller and the CANH/CANL bus pair. Confirm logic levels, mode polarity, timing, protection, and exposed-pad layout against the NXP datasheet before qualification.
Рекомендуется
Vehicle Gateway Controller
A vehicle gateway often connects CAN domains carrying body, chassis, and diagnostic traffic, making the TJA1442ATK/0Z a practical physical-layer device for a high-speed branch. Its operation up to 5 Mbit/s accommodates CAN FD-capable traffic, while Standby mode provides a defined low-activity state for power management. Position the transceiver near the connector or bus branch, route CANH and CANL as a balanced pair, and confirm that termination, protection, and the host controller timing match the selected network topology.
Рекомендуется
Electric Vehicle Control Unit
The TJA1442ATK/0Z can provide the CAN physical layer in an electric-vehicle control unit that exchanges commands and status data across multiple vehicle modules. The 5 V VCC supply and separate VIO input support integration with compatible digital logic levels, while operation up to 5 Mbit/s supports high-speed CAN FD links. Its compact 8-HVSON package reduces board area in densely packaged electronics. Validate transient immunity, bus protection, thermal performance, and production traceability for the target vehicle program.
Рекомендуется
CAN-Based Sensor Node
A CAN-based sensor node can use the TJA1442ATK/0Z to connect sensing or actuator electronics to a vehicle network through a standardized physical layer. The transceiver supports CAN and CAN FD at rates up to 5 Mbit/s and includes Standby mode for systems that periodically reduce bus activity. VIO allows interface-level adaptation where required by the controller. Keep the bus trace geometry controlled, select protection suitable for the harness environment, and verify the RXD and TXD interface behavior in every operating mode.
Рекомендуется
Industrial Automation Controller
The TJA1442ATK/0Z is applicable to industrial automation equipment that uses high-speed CAN for sensor aggregation, motion control, or machine diagnostics. Operation up to 5 Mbit/s supports high-speed CAN FD traffic, and Standby mode allows controlled reduction in transceiver activity when the machine is idle. The 8-HVSON package is useful for compact controller boards, while the exposed pad provides a direct path for board-level heat spreading. Check industrial EMC requirements, bus topology, fault protection, and controller compatibility before deployment.
Рекомендуется
CAN FD Communication Module
A dedicated CAN FD communication module benefits from the TJA1442ATK/0Z because the device supports CAN FD communication at rates up to 5 Mbit/s and implements the physical layer described by ISO 11898-2:2016. TXD accepts controller data, RXD returns received bus data, and VIO supports the required logic interface. Standby mode is beneficial in compact modules with duty-cycled operation. Confirm controller timing, termination values, bus capacitance, transceiver mode timing, and the exposed-pad ground connection in the final reference design.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для TJA1442ATK/0Z — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | TJA1441ATK/0Z | TJR1442ATK/0Z |
|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 8-HVSON (3 x 3 mm) | 8-HVSON (3 x 3 mm) | 8-HVSON (3 x 3 mm) |
| Product Type | CAN transceiver with Standby mode | CAN transceiver | CAN transceiver |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 |
| Exposed Pad | Present | Present | Present |
Ключевые отличия
- Standby mode in an automotive CAN FD interface (против TJA1441ATK/0Z)
- 5 Mbit/s CAN and CAN FD support (против TJR1442ATK/0Z)
- Separate VIO interface supply (против TJA1441ATK/0Z)
Заметки по проектированию
Place the TJA1442ATK/0Z close to the CAN bus connector and the CAN controller interface. Route CANH and CANL as a balanced pair over a continuous ground reference, minimize stubs, and keep the pair geometry consistent. Follow the NXP TJA1442 datasheet layout guidance for supply decoupling and exposed-pad grounding.
Decouple VCC locally with the capacitance and ESR requirements stated in the NXP datasheet, and connect the exposed pad to the intended ground plane with adequate thermal-via coverage. Estimated thermal calculations must use the actual input-output voltage difference, load current, package thermal data, and board copper area; no thermal value is assumed here.
Do not substitute a family member based on the HVSON footprint alone. Verify TXD and RXD direction, Standby polarity, VIO behavior, receiver configuration, loopback or test modes, timing, electrical limits, and automotive qualification. A footprint match does not by itself prove functional drop-in compatibility.
Use protection components selected for the vehicle or industrial harness environment, and validate their capacitance, clamping behavior, and common-mode effects against the 5 Mbit/s operating requirement. Keep the protected CANH and CANL paths short and symmetrical, and provide a defined ground return path for surge and ESD currents.
Информация о соответствии
NXP and distributor product information identifies the TJA1442ATK/0Z as an automotive AEC-Q100 part. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status are not stated in the product information used for this record.
