ISO1042BDWVR - Isolated CAN Transceiver 70V Fault | TI
MPN: ISO1042BDWVR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.05 | $205.00 |
| 500 | $1.72 | $860.00 |
| 1,000 | $1.45 | $1,450.00 |
Drop-in alternatives for ISO1042BDWVR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ISO1042BDWV
β Drop-Inπ Reference alternative (not in catalog)
ISO1042QDWRQ1
β Drop-Inπ Reference alternative (not in catalog)
ISO1042QDWVQ1
β Drop-Inπ Reference alternative (not in catalog)
ISO1042DWV
β Drop-Inπ Reference alternative (not in catalog)
ISO1042DWVR
β Drop-Inπ Reference alternative (not in catalog)
ISO1042BDWVR Maximum Ratings & Electrical Characteristics
| Number of Channels | 1/1 |
| Type | Transceiver |
| Protocol | CANbus |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Full |
| Data Rate (Max) | 5 Mbps |
| Supply Voltage (Logic Side) | 1.8V/5.5V |
| Bus Fault Protection | 70 V |
| Working Isolation Voltage (VIOWM) | 1060 Vrms |
| Isolation Rating | Basic, Reinforced |
| Operating Temperature Range | -40Β°C to 125Β°C |
| Package | SOIC (DWV) 8 pins |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Series | ISO1042 |
ISO1042BDWVR Pin Configuration
| Pin 1 | TXD β Transmit data input |
| Pin 2 | GND1 β Ground for logic side |
| Pin 3 | VCC1 β Logic supply voltage (1.8V or 5.5V) |
| Pin 4 | RXD β Receive data output |
| Pin 5 | VCC2 β Bus supply voltage (5V) |
| Pin 6 | CANH β CAN high bus line |
| Pin 7 | CANL β CAN low bus line |
| Pin 8 | GND2 β Ground for bus side |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ISO1042BDWVR is suitable for 6 applications: Industrial Automation, Automotive Body Electronics, Building Automation, Medical Equipment, Motor Control, Grid Infrastructure.
Industrial Automation
The ISO1042BDWVR provides galvanic isolation and 70-V bus fault protection, making it ideal for industrial automation networks where motors, drives, and sensors communicate over CAN. Its 5 Mbps data rate supports high-speed control loops, while the isolation prevents ground loops and protects controllers from transients. The wide temperature range (-40Β°C to 125Β°C) ensures reliable operation in factory floors. With reinforced isolation, it meets safety requirements for industrial equipment. The device can be used in PLCs, robotic controllers, and remote I/O modules, ensuring robust communication in harsh environments.
Recommended
Automotive Body Electronics
In automotive body electronics, the ISO1042BDWVR enables reliable CAN communication between ECUs while providing isolation to protect sensitive electronics from high-voltage transients. Its 70-V bus fault protection handles short circuits to battery voltage, and the 5 Mbps data rate supports advanced features like CAN FD. The device operates over -40Β°C to 125Β°C, suitable for under-hood and cabin environments. Although not AEC-Q100 qualified, it can be used in non-safety-critical applications. For automotive-grade, the ISO1042QDWRQ1 is recommended. Applications include body control modules, lighting control, and door modules.
Recommended
Building Automation
The ISO1042BDWVR is used in building automation systems for HVAC control, lighting, and access control networks. Its isolation prevents ground loops between different building zones, and the 70-V fault protection guards against wiring errors. The 5 Mbps data rate supports fast communication for real-time control. The device's wide temperature range and reinforced isolation make it suitable for rooftop units and mechanical rooms. It can be used in BACnet MS/TP networks that utilize CAN physical layer. The compact SOIC-8 package saves PCB space in space-constrained controllers.
Recommended
Medical Equipment
In medical equipment, the ISO1042BDWVR provides the necessary galvanic isolation for patient safety, meeting IEC 60601-1 creepage and clearance requirements. Its reinforced isolation rating ensures protection against high voltages, and the 70-V bus fault protection adds robustness. The 5 Mbps data rate supports high-speed data transfer for imaging and monitoring systems. The device operates over -40Β°C to 125Β°C, suitable for sterilization environments. It is used in patient monitors, infusion pumps, and diagnostic equipment where reliable communication and safety are critical. The isolation barrier prevents leakage currents that could harm patients.
Recommended
Motor Control
The ISO1042BDWVR is ideal for motor control systems in industrial drives and robotics. It provides isolation between the high-voltage motor side and the low-voltage controller, preventing noise and transients from corrupting control signals. The 5 Mbps data rate enables fast communication for real-time torque and speed control. The 70-V bus fault protection handles short circuits in the motor wiring. The device's wide temperature range and reinforced isolation ensure reliable operation in harsh environments. It is used in variable frequency drives, servo drives, and CNC machines, where CAN networks coordinate multiple axes.
Recommended
Grid Infrastructure
In grid infrastructure, the ISO1042BDWVR is used in smart grid devices such as smart meters, distribution automation, and substation monitoring. Its isolation protects against high-voltage transients and ground potential differences. The 70-V bus fault protection ensures robustness in outdoor environments. The 5 Mbps data rate supports fast communication for real-time grid monitoring. The device operates over -40Β°C to 125Β°C, suitable for outdoor enclosures. Reinforced isolation meets safety standards for utility equipment. It enables reliable communication between grid devices over long distances, ensuring grid stability and efficiency.
Recommended
Recommended Products Summary
Engineering reference data for ISO1042BDWVR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ISO1042BDWV | ISO1042QDWRQ1 | ISO1042QDWVQ1 | ISO1042DWV |
|---|---|---|---|---|---|
| Package | SOIC-8 (DWV) | SOIC-8 (DWV) | SOIC-8 (DWV) | SOIC-8 (DWV) | SOIC-8 (DWV) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Data Rate (Max) | 5 Mbps | 5 Mbps | 5 Mbps | 5 Mbps | 5 Mbps |
| Working Isolation Voltage | 1060 Vrms | 1060 Vrms | 1060 Vrms | 1060 Vrms | 1060 Vrms |
| Bus Fault Protection | 70 V | 70 V | 70 V | 70 V | 70 V |
| Automotive Grade | No | No | Yes (AEC-Q100) | Yes (AEC-Q100) | No |
| Packaging | Tape & Reel | Tube | Tape & Reel | Tube | Tube |
| Supply Voltage (Logic) | 1.8V/5.5V | 1.8V/5.5V | 1.8V/5.5V | 1.8V/5.5V | 1.8V/5.5V |
Key Differentiators
- Reinforced isolation rating (vs ISO1050DUBR)
- 70-V bus fault protection (vs ISO1050DUBR)
- Flexible data rate up to 5 Mbps (vs ISO1050DUBR)
Design Notes
For the ISO1042BDWVR, maintain proper creepage and clearance distances between the logic side (pins 1-4) and bus side (pins 5-8) to preserve the isolation rating. The SOIC-8 DWV package has a specified creepage distance; ensure the PCB layout does not reduce it. Use a ground plane split under the device to enhance isolation. Refer to TI's layout guidelines in the datasheet.
The logic-side supply (VCC1) can be 1.8V or 5.5V, while the bus-side supply (VCC2) is typically 5V. Ensure both supplies are adequately decoupled with 100nF capacitors close to the pins. The device draws quiescent current from both supplies; check the datasheet for typical values. For 1.8V logic, ensure the microcontroller's I/O levels are compatible with the transceiver's input thresholds.
Do not exceed the bus fault protection voltage of 70V on CANH and CANL. Although the device can withstand short circuits to 70V, continuous operation at high voltages may reduce reliability. Also, ensure proper bus termination (120 ohms at each end) to avoid signal reflections. The TXD pin should be pulled high when not transmitting to avoid bus dominant state errors.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified; automotive variants available.
