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Texas Instruments ISO1050DUBR
- Part No.:
- ISO1050DUBR
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SMD, Gull Wing
- Datasheet:
-
ISO1050DUBR.pdf
- Description:
- IC TRANSCEIVER HALF 1/1 8SOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,861
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Product details
Overview
ISO1050DUBR from Texas Instruments is an 8-pin galvanically isolated CAN transceiver compliant with ISO11898-2. The device provides single reinforced insulation up to 2500 VRMS and high transient immunity for reliable CAN communication in harsh industrial, automotive, and embedded environments.
The ISO1050DUBR features TXD dominant time-out, fail-safe outputs, bus-fault protection from –27 V to 40 V, and low propagation delay (~150 ns typical). It supports 3.3 V and 5 V I/O voltage ranges for compatibility with a wide range of microcontrollers and CAN nodes.
Technical Context
The ISO1050DUBR operates as a high-speed, isolated CAN transceiver with separated digital input/output buffers across a silicon oxide insulation barrier. It allows signal transmission between the local microcontroller and the CAN bus while preventing ground loop currents and protecting low-voltage circuits from high-voltage disturbances.
The device ensures robust CAN bus operation with differential transmit and receive capabilities up to 1 Mbps. Designed for harsh environments, ISO1050DUBR offers cross-wire, overvoltage, loss-of-ground, thermal shutdown, and undervoltage protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 2500 VRMS reinforced insulation, single protection (ISO1050DUBR) |
| Common-Mode Transient Immunity (CMTI) | 50 kV/µs typical |
| Propagation Delay | 150 ns typical, 210 ns maximum |
| Bus Fault Protection | -27 V to 40 V |
| Supply Voltage | Side 1: 3–5.5 V, Side 2: 5 V nominal |
| Operating Temperature Range | -55°C to +105°C |
| Fail-Safe Output | Maintains recessive output if bus-side faults or undervoltage occur |
| Package | 8-pin SOP (DUB), 16-pin SOIC (DW) |
| TXD Dominant Time-Out | Prevents blocking of CAN bus if TXD stuck dominant |
| Regulatory Certifications | VDE, UL 1577, CSA, CQC single protection |
Pinout & Package
The ISO1050DUBR pinout includes TXD, RXD, CANH, CANL, power (VCC1, VCC2), and ground pins for isolated digital communication. Proper PCB layout is essential for maintaining isolation, signal integrity, and thermal management. Creepage and clearance distances must meet insulation requirements.
| Pin / Function | PCB Design and Circuit Role |
|---|---|
| VCC1 | Supply for side 1 digital interface (3–5.5 V), decoupled to ground |
| GND1 | Digital-side ground reference |
| RXD | Receiver output, reflects CAN bus states |
| TXD | Transmitter input; dominant time-out protects the bus |
| GND2 | Transceiver-side ground for CAN bus |
| CANL / CANH | CAN differential bus lines; isolated from logic side |
| VCC2 | Supply for transceiver side (5 V) |
Key Features
- Single-protection galvanic isolation (2500 VRMS) for CAN bus signals
- 50 kV/µs typical CMTI for industrial robustness
- Low loop delay: 150 ns typical
- TXD dominant time-out and fail-safe outputs
- Bus-fault protection from –27 V to 40 V
- Supports 3.3 V and 5 V microcontroller logic levels
- Wide temperature range: –55°C to 105°C
- Compliance with ISO11898-2 standard
- 8-pin SOP and 16-pin SOIC package options
Applications
| Industrial Automation | Motor Control |
|---|---|
|
Use Scenario: PLCs, sensors, drive systems IC Role: Isolates CAN signals from high-voltage industrial circuits Use Value: Protects logic circuits and ensures reliable communication |
Use Scenario: Motor drivers, inverters, power electronics IC Role: Provides isolated CAN communication to controllers Use Value: Prevents ground loops and protects digital logic from noise |
| Transportation & Medical | Embedded Communication |
|
Use Scenario: Automotive networks, medical devices IC Role: Ensures safety and signal integrity in isolated CAN applications Use Value: Complies with IEC/UL/CSA standards for isolated communications |
Use Scenario: Embedded systems, CAN bus nodes IC Role: Provides differential transmit and receive across isolation barrier Use Value: Reliable communication in electrically noisy environments |
Equivalent & Alternatives
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISO7841 | Lower data rate, CMTI | Industrial SPI/UART CAN isolation | Use ISO1050DUBR for higher speed and better CMTI |
| ISO7421 | Different insulation rating and package | General industrial isolator use | Use ISO1050DUBR if SOIC package and 2500 VRMS single protection required |
Quality
ISO1050DUBR should be sourced as original Texas Instruments components. Quality verification includes electrical testing, isolation verification, thermal characterization, and lot traceability according to industrial standards.
Availability
ISO1050DUBR available at Aetrix Electronics and suitable for industrial, motor-control, and embedded systems requiring long-lifecycle, stable component supply.
Manufacturer
Texas Instruments provides analog and digital isolators, CAN transceivers, and signal-chain devices for industrial, automotive, embedded, and communication applications.
FAQ
What is ISO1050DUBR used for?
ISO1050DUBR is used to provide galvanic isolation for CAN bus communication in industrial, automotive, medical, and embedded applications.
Where can I find the ISO1050DUBR datasheet?
The datasheet is provided by Texas Instruments and contains full specifications, pinout, application circuits, and safety compliance details.
What are key protection features of ISO1050DUBR?
TXD dominant time-out, fail-safe outputs, bus-fault protection, undervoltage lockout, and thermal shutdown ensure robust operation under faults.
What package options are available?
ISO1050DUBR is available in 8-pin SOP (DUB) and 16-pin SOIC (DW) packages for flexible PCB integration.
ISO1050DUBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Transceiver, Isolated
- Protocol:
- CANbus
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- Half
- Receiver Hysteresis:
- 150 mV
- Data Rate:
- 1Mbps
- Voltage - Supply:
- 3V ~ 5.5V, 4.75V ~ 5.25V
- Operating Temperature:
- -55°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOP
ISO1050DUBR FAQ
1.How can I place an order for ISO1050DUBR through Aetrix?
Please submit a Request for Quotation (RFQ) for ISO1050DUBR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ISO1050DUBR reliable?
The price and inventory of ISO1050DUBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISO1050DUBR is usually 5 days.
3.What payment methods are accepted for ISO1050DUBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISO1050DUBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISO1050DUBR?
ISO1050DUBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISO1050DUBR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ISO1050DUBR?
For technical support, including ISO1050DUBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISO1050DUBR requirements.
6.How does Aetrix verify that ISO1050DUBR is sourced from the original manufacturer or authorized distributors?
All ISO1050DUBR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ISO1050DUBR meets industry standards.
7.What is the process for return or replacement of ISO1050DUBR?
All ISO1050DUBR units undergo pre-shipment inspection (PSI). If there is an issue with ISO1050DUBR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ISO1050DUBR part is unused and in its original packaging.
Return procedure for ISO1050DUBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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