ISO1042QDWRQ1 - 5Mbps Isolated CAN FD | Texas Instruments
N.º da peça: ISO1042QDWRQ1 ✓ AtivoISO1042QDWRQ1 Visão geral
A CAN transceiver is the physical-layer interface between a CAN controller and a Controller Area Network bus. It converts logic-level transmit and receive signals into differential CAN bus signals, while providing galvanic isolation between those domains. This separation reduces ground-potential and fault-energy paths, making the transceiver suitable for electrically demanding automotive, industrial, and communications equipment that uses the ISO11898-2 CAN standard.
Key features include a maximum data rate of 5 Mbps in CAN FD mode, ±70-V DC bus-fault protection, and a ±30-V common-mode range. The 16-pin SOIC package provides enough pins for the isolated logic interface, isolation barrier, CAN bus side, and bypass connections. The automotive-rated ISO1042-Q1 family is intended for systems where robust fault handling and high-speed CAN FD communication are important.
The ISO1042-Q1 architecture separates the controller-side TXD and RXD signals from the CANH and CANL bus terminals with an internal isolation barrier. Its high fault tolerance lets the bus interface withstand severe DC bus faults without immediately compromising the logic side. During normal operation, the bus side supports high-speed CAN FD communication, while the isolated logic side connects to a CAN controller through digital transmit, receive, enable, and power connections.
Typical uses include automotive body and chassis controllers, electric-vehicle power domains, industrial automation equipment, robotics, medical carts, and other embedded systems that need a robust isolated CAN interface. In an automobile, the transceiver can connect a low-voltage controller to a CAN bus exposed to battery transients and wiring faults. In factory equipment, isolation helps bridge control electronics and field-bus wiring across different ground references.
Design the PCB with short CANH and CANL traces, a continuous return path beneath the bus pair, and the bus-side bypass capacitor placed close to the device. Keep isolation-side and bus-side copper areas separated according to the Texas Instruments datasheet layout guidance. The isolation barrier components and supply networks must also follow the specified creepage and clearance requirements, particularly in high-voltage automotive environments.
Alternativas drop-in para ISO1042QDWRQ1 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ISO1042QDWRQ1 (mesmo formato e footprint) — diferindo em Package, Isolation Type, CAN Standard, Common-Mode Voltage Range, DC Bus Fault Protection.
ISO1042QDWQ1
✅ Drop-In ⚠️ Especificações não verificadasConsulte o preço
Ver ficha técnica →ISO1042QDWVQ1
✅ Drop-In ⚠️ Especificações não verificadasConsulte o preço
Ver ficha técnica →ISO1042QDWRQ1 Especificações
| Product Type | Galvanically isolated CAN transceiver |
| CAN Standard | ISO11898-2 (2016) |
| Maximum Data Rate | 5 Mbps |
| CAN FD Support | Up to 5 Mbps |
| DC Bus Fault Protection | ±70 V |
| Common-Mode Voltage Range | ±30 V |
| Isolation Type | Galvanic isolation |
| Application Classification | Automotive |
| Encapsulamento | 16-pin SOIC |
| Package Width | 7.50 mm |
| Tipo de montagem | Surface mount |
Guia de Configuração de Pinos do ISO1042QDWRQ1 7.50 mm
Configuração de pinos para ISO1042QDWRQ1 (pacote 7.50 mm). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para ISO1042QDWRQ1.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ISO1042QDWRQ1 é adequado para 6 aplicaçãos: Automotive Body Control Modules, Electric Vehicle Power and Chassis Networks, Industrial Automation and Robotics, Medical and Laboratory Equipment, Building and Energy Control Networks, Communication and Network Equipment.
Automotive Body Control Modules
The ISO1042QDWRQ1 fits body and chassis controllers that need a dependable connection to a CAN FD network. Its 5-Mbps maximum data rate supports higher-throughput CAN FD payload traffic, while ±70-V DC bus-fault protection strengthens the interface against accidental battery or wiring faults. The ±30-V common-mode range provides additional operating margin in vehicle electrical environments. Place the transceiver between the CAN controller and CANH/CANL bus network, then follow the Texas Instruments layout guidance for isolation spacing, bypass capacitance, and a continuous return path beneath the bus traces.
Recomendado
Electric Vehicle Power and Chassis Networks
The ISO1042QDWRQ1 is appropriate for electric-vehicle subsystems that exchange control, diagnostic, or sensor data over CAN FD. A 5-Mbps link rate permits faster network traffic than classic CAN, while galvanic isolation helps separate the controller domain from the vehicle power environment. Its ±70-V DC bus-fault capability is particularly relevant where bus wiring can encounter battery-connected transients. System designers should still include appropriate external protection and validate the complete network against the vehicle's transient requirements, because the transceiver's internal rating does not replace a correctly engineered wiring and protection strategy.
Recomendado
Industrial Automation and Robotics
The ISO1042QDWRQ1 can bridge a PLC, robot controller, or industrial computer to an ISO11898-2 CAN network carrying high-speed sensor and actuator traffic. Its 5-Mbps capability supports demanding machine-control and diagnostic traffic, while galvanic isolation reduces coupling between factory control electronics and field-bus wiring. The ±70-V DC bus-fault protection and ±30-V common-mode range improve robustness against field-wiring faults. For deployment, use a protected bus distribution, maintain the recommended CANH/CANL trace geometry, and verify that the chosen temperature and qualification options match the machine environment.
Recomendado
Medical and Laboratory Equipment
The ISO1042QDWRQ1 is suitable for isolated CAN communication in medical carts, diagnostic systems, and laboratory instruments where controller electronics may be separated from field-bus wiring. The isolation barrier can improve system-level separation, while 5-Mbps CAN FD performance supports fast status and diagnostic traffic. Its ±70-V DC bus-fault protection helps the interface tolerate wiring faults encountered in mobile equipment. Designers must still apply the medical system's required safety, isolation, creepage, clearance, and EMC controls rather than treating the component's isolation feature as a complete compliance solution.
Recomendado
Building and Energy Control Networks
The ISO1042QDWRQ1 can connect building controllers, power-conversion equipment, and remote energy-management modules to a high-speed CAN FD backbone. Its 5-Mbps data rate accommodates dense monitoring and control traffic, while the isolation barrier separates low-power controller electronics from wired field networks. The ±70-V bus-fault rating and ±30-V common-mode range provide useful protection margin in installations where long cables or external equipment increase fault risk. Deployers should use surge protection, proper bus termination, and an isolated supply arrangement that follows the component's application guidance.
Recomendado
Communication and Network Equipment
The ISO1042QDWRQ1 can provide an isolated CAN FD uplink in industrial gateways, distributed communications equipment, and monitoring systems. At up to 5 Mbps, the transceiver supports high-volume payload traffic and rapid diagnostic exchanges. Galvanic isolation is useful when the CAN network has a different ground reference or a more severe electrical environment than the host controller. The ±70-V DC fault protection and ±30-V common-mode capability add protection margin, although system integration still requires correct bus termination, common-mode choke selection where needed, chassis grounding, and validated surge protection.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ISO1042QDWRQ1 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ISO1042QDWQ1 | ISO1042QDWVQ1 |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC |
| Product Type | Automotive galvanically isolated CAN transceiver | Galvanically isolated CAN transceiver | Automotive galvanically isolated CAN transceiver |
| Maximum Data Rate | 5 Mbps | 5 Mbps | 5 Mbps |
| DC Bus Fault Protection | ±70 V | ±70 V | ±70 V |
| Common-Mode Voltage Range | ±30 V | ±30 V | ±30 V |
| CAN Standard | ISO11898-2 (2016) | ISO11898-2 (2016) | ISO11898-2 (2016) |
| CAN FD Support | Up to 5 Mbps | Up to 5 Mbps | Up to 5 Mbps |
| Automotive Designation | ISO1042-Q1 | Non-Q1 ISO1042 ordering option | ISO1042-Q1 ordering option |
Principais diferenciais
- Automotive ISO1042-Q1 option with 5-Mbps CAN FD operation (vs ISO1042QDWQ1)
- No reduction in headline CAN bus electrical ratings (vs ISO1042QDWVQ1)
- Galvanic isolation in a 16-pin SOIC footprint (vs ISO1042QDWQ1)
Notas de projeto
Use the Texas Instruments ISO1042-Q1 datasheet layout as the authority for isolation clearances, creepage, via treatment, and capacitor placement. Keep the logic-side and CAN-bus-side copper regions separated, place the bus-side bypass capacitor close to its supply pins, and avoid routing CANH or CANL through circuitry shared with sensitive isolation-side signals.
Route CANH and CANL as a closely coupled differential pair with continuous impedance control, minimize stubs, and provide a continuous reference plane beneath the pair. Place termination only at physical endpoints of the bus. These practices reduce reflections and improve the reliability of the 5-Mbps CAN FD signal.
Do not substitute ISO1050 for ISO1042QDWRQ1 without changing the PCB. Texas Instruments identifies ISO1050 as not pin-to-pin compatible with ISO1042 because the TXD and RXD pins are swapped. Confirm the complete pin-description table, temperature grade, isolation rating, and qualification before approving any ordering variant as a replacement.
Informações de conformidade
The ISO1042-Q1 family is identified as automotive, but the specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals statements were not included in the manufacturer page excerpts used for this record.