ISO1050DWR - 5V Isolated CAN Transceiver | Texas Instruments
MPN： ISO1050DWR ✓ 啟用中ISO1050DWR 概覽
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.
直接替換替代品，適用於 ISO1050DWR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ISO1050DWR （相同外形與佔位） — 差異在於 Package, Operating Temperature, RoHS Status, Product Type.
ISO1050DW
✅ 直接替換📋 參考替代品（不在目錄中）
ISO1050DWR 規格
| 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 |
| 供應電壓 | 5 V isolated CAN transceiver |
| 封裝 | 16-pin SOIC |
| 腳位數 | 16 pins |
| 安裝類型 | Surface mount |
| 工作溫度 | -55 °C to +105 °C |
| Propagation Delay | 74 ns |
| RoHS 狀態 | RoHS3 compliant |
| MSL | MSL 2, 260 °C, 1 year |
| 生命週期狀態 | Active |
ISO1050DWR 16-pin soic 腳位配置指南
ISO1050DWR（16-pin soic 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： ISO1050DWR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ISO1050DWR 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 ISO1050DWR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- High working isolation rating (對比ISO1050DUB)
- Same-family reel-ready alternative (對比ISO1050DW)
- Standard industrial CAN compliance (對比ISO1042)
設計說明
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.
合規資訊
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.