ISO1050DWR - 5V Isolated CAN Transceiver | Texas Instruments
料号： ISO1050DWR ✓ 量产中ISO1050DWR 概述
An isolated CAN transceiver is a network interface IC that combines CAN physical-layer signaling with a galvanic isolation barrier. It belongs to the broader hierarchy of CAN transceiver, isolated interface IC, industrial communication interface, and semiconductor. The ISO1050DWR allows a CAN controller or microprocessor on the logic side to communicate with a CAN bus through the isolated bus side, while preventing ground currents and high-voltage transients from propagating across the barrier.
Key verified features include ISO11898-2 compliance, isolated 5 V CAN operation, 16-pin SOIC packaging, and a 1/1 transceiver configuration. The manufacturer specifies 5000 V RMS isolation for the ISO1050DW package variant and 2500 V RMS for the ISO1050DUB variant. The silicon oxide insulation barrier is intended to suppress noise and prevent dangerous ground loops in industrial environments.
The ISO1050DWR is suited to industrial automation, transportation equipment, building controls, and isolated CAN networks. Its logic-side interface connects to a CAN controller, while the bus-side interface connects to CAN_H and CAN_L conductors. The isolated transceiver should be used with an isolated power supply so that the isolation barrier is not undermined by a shared ground path.
A key design consideration is that isolation does not eliminate the need for correct bus termination, common-mode protection, or isolated-supply design. The 16-pin SOIC footprint supports conventional surface-mount assembly, while the tape-and-reel designation identifies the production packing format for high-volume manufacturing. This page combines verified manufacturer and distributor information with practical design guidance for isolated CAN implementations.
直接替换替代料： ISO1050DWR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ISO1050DWR （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, RoHS Status, Product Type.
ISO1050DW
✅ 直接替换📋 参考替代料（不在目录中）
ISO1050DWR 规格参数
| Product Type | Galvanically isolated CAN transceiver |
| CAN Standard | ISO11898-2 |
| Transceiver Configuration | 1/1 isolated half CANBus |
| Isolation Barrier | Silicon oxide (SiO2) |
| Working Isolation Voltage, ISO1050DW | 5000 V RMS |
| Working Isolation Voltage, ISO1050DUB | 2500 V RMS |
| 电源电压 | 5 V isolated CAN transceiver |
| 封装 | 16-pin SOIC |
| 引脚数 | 16 pins |
| 安装类型 | Surface mount |
| 工作温度 | -55 °C to +105 °C |
| Propagation Delay | 74 ns |
| RoHS 状态 | RoHS3 compliant |
| MSL | MSL 2, 260 °C, 1 year |
| 生命周期状态 | Active |
ISO1050DWR 16-pin soic 引脚配置指南
ISO1050DWR（16-pin soic 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： ISO1050DWR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ISO1050DWR 适用于 6 应用s: Industrial PLC CAN Isolation, Automotive and Transportation Networks, Building Control Networks, Noise-Prone Sensor and Actuator Networks, Robotics and Factory Automation, Isolated Test and Measurement Equipment.
Industrial PLC CAN Isolation
ISO1050DWR fits industrial PLC and controller designs where the logic ground is electrically separated from a noisy CAN bus. Its 5 V isolated CAN interface and ISO11898-2 compliance support standard bus signaling, while the DW package provides isolation up to 5000 V RMS. Place the device between the controller TXD/RXD interface and CAN_H/CAN_L, then provide an isolated supply on the bus side. Correct high-impedance isolation layout, bus termination, and common-mode protection remain necessary to realize the full benefit of the 74 ns propagation-delay device.
推荐
Automotive and Transportation Networks
The ISO1050DWR is appropriate for transportation modules that exchange CAN data across a galvanic barrier. Its silicon oxide barrier separates logic-side and bus-side buffers, helping prevent ground-potential differences and bus transients from reaching the controller domain. The operating range of -55 °C to +105 °C supports demanding industrial and transportation environments, while the -55 °C to +105 °C qualification should still be matched to the complete vehicle or subsystem thermal requirement. The 16-pin SOIC also supports automated surface-mount assembly in reel form.
推荐
Building Control Networks
ISO1050DWR can isolate controllers used in HVAC, access-control, lighting, and building-management systems that communicate over CAN. The 5 V isolated CAN interface and 5000 V RMS working isolation for the DW package help retain communication when building power and communication grounds are at different potentials. Designers should use an isolated DC/DC converter for the bus-side supply, maintain the recommended isolation barrier spacing, and place CAN bus termination only at the physical ends of the network.
推荐
Noise-Prone Sensor and Actuator Networks
ISO1050DWR is useful when remote sensors or actuators share a CAN bus with motors, relays, or switching power stages. Its isolation barrier helps protect the controller logic from common-mode energy present on the bus while retaining ISO11898-2 transceiver operation. The device does not replace surge protection or proper grounding, so the implementation should combine its 74 ns propagation delay with short differential routing, controlled bus impedance, and separate isolated power domains for predictable communication reliability.
推荐
Robotics and Factory Automation
ISO1050DWR supports isolated CAN communication between robot controllers, machine vision stations, and remote actuator nodes. The 1/1 transceiver configuration allows a logic-side CAN controller to connect to the isolated physical bus, and the 16-pin SOIC package is compatible with compact control electronics. Because industrial robots often combine high-current motors and low-level sensors, isolation helps contain ground offsets and conducted noise. The design should nevertheless include appropriate bus protection, isolated power, and tested termination to prevent communication faults under motor-switching events.
推荐
Isolated Test and Measurement Equipment
ISO1050DWR can connect laboratory, service, or field-test equipment to an isolated CAN network without tying the instrument ground directly to the bus ground. The 5000 V RMS working isolation for the DW package provides separation between measurement-system logic and the bus domain, while the 5 V interface matches conventional embedded CAN designs. Instrument designers should still account for parasitic capacitance across the isolation barrier, isolated-supply startup behavior, and the 74 ns propagation delay when interpreting timing-critical test results.
推荐
推荐产品汇总
工程参考数据： ISO1050DWR ——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 | ISO1050DW |
|---|---|---|
| Package | 16-pin SOIC | 16-pin SOIC |
| Brand | Texas Instruments | Texas Instruments |
| Product Type | Galvanically isolated CAN transceiver | Galvanically isolated CAN transceiver |
| CAN Standard | ISO11898-2 | ISO11898-2 |
| Supply Voltage | 5 V | 5 V |
| Working Isolation Voltage | 5000 V RMS for DW package | 5000 V RMS for DW package |
| Operating Temperature | -55 °C to +105 °C | -55 °C to +105 °C |
| Propagation Delay | 74 ns | 74 ns |
| Packing Format | Tape and reel | Non-reel ordering format |
关键差异点
- High working isolation rating （对比 ISO1050DUB)
- Same-family reel-ready alternative （对比 ISO1050DW)
- Standard industrial CAN compliance （对比 ISO1042)
设计说明
Use an isolated DC/DC supply for the bus-side domain so that no conductive ground path bypasses the ISO1050DWR silicon oxide barrier. Place local decoupling at both supply pins and keep the isolated-side return confined to the transceiver and its defined bus interface. Verify startup, shutdown, and fault behavior across the complete 5 V supply arrangement before using the advertised 5000 V RMS working isolation rating as a system-level withstand specification.
Preserve the isolation barrier by keeping copper, solder mask, and low-voltage circuitry away from bus-side traces. Route CAN_H and CAN_L as a closely coupled differential pair over a continuous reference plane, minimize stubs, and apply termination only at the two physical endpoints of the bus. Do not route logic-side signals beneath or across the isolation gap because parasitic coupling can reduce effective isolation and increase common-mode conversion.
Do not substitute ISO1042 for ISO1050DWR because TI confirms that the RXD and TXD pins are swapped between the two devices. Also avoid treating the 5000 V RMS working-isolation figure as proof of reinforced insulation, unlimited surge withstand, or safety certification. Verify the exact ISO1050DW ordering code, bus-side supply requirements, transceiver mode behavior, and external protection network against the current manufacturer datasheet.
The ISO1050DWR isolates ground potentials but does not eliminate radiated or conducted emissions from the complete CAN subsystem. Use a continuous ground reference on each domain, minimize loop areas around CAN_H and CAN_L, add common-mode choke or surge-protection elements only after timing and bus-impedance checks, and maintain a defined single-point isolation strategy. The 74 ns propagation delay should be included in end-to-end CAN timing analysis.
合规信息
The verified component analysis identifies ISO1050DWR as RoHS3 compliant and reports MSL 2 at 260 °C for one year. No verified declaration was supplied for REACH, AEC-Q100, lead-free status, halogen-free status, or conflict minerals.