ISO1042BDWVR - Isolated CAN Transceiver 70V Fault | TI
MPN: ISO1042BDWVR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.47 | $1,235.00 |
| 1,000 | $2.2 | $2,200.00 |
Drop-in alternatives for ISO1042BDWVR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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ISO1042DWVR
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View Datasheet →TJA1051T/3/1
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View Datasheet →ISO1042BDWVR Maximum Ratings & Electrical Characteristics
| Number of Transceivers | 1 |
| Type | Full CANbus |
| Data Rate | 5 Mbps (CAN FD) |
| Bus Fault Protection | ±70 V DC |
| Common-Mode Voltage Range | ±30 V |
| Working Isolation Voltage | 1060 Vrms |
| Isolation Rating | Basic and reinforced |
| Supply Voltage (Logic Side) | 1.8 V / 5.5 V |
| Operating Temperature Range | -40°C to 125°C |
| Package | SOIC (DWV) 8-pin |
| Mounting Type | Surface Mount |
| Standard | ISO11898-2 (2016) |
| ESD Protection | Yes |
| Thermal Shutdown | Yes |
| RoHS Status | Compliant |
ISO1042BDWVR Pin Configuration
| Pin 1 | TXD — Transmit data input |
| Pin 2 | GND1 — Ground for logic side |
| Pin 3 | VCC1 — Logic-side supply voltage (1.8V or 5.5V) |
| Pin 4 | RXD — Receive data output |
| Pin 5 | GND2 — Ground for bus side |
| Pin 6 | CANL — CAN low bus line |
| Pin 7 | CANH — CAN high bus line |
| Pin 8 | VCC2 — Bus-side supply voltage |
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, Motor Control, Building Automation, Medical Equipment, Test and Measurement.
Industrial Automation
The ISO1042BDWVR provides galvanic isolation and robust bus fault protection up to 70V, making it ideal for industrial automation networks where motors, drives, and sensors generate electrical noise. Its 5 Mbps CAN FD data rate enables high-speed communication between PLCs and field devices, while the -40°C to 125°C temperature range ensures reliable operation in harsh factory environments. The isolation barrier prevents ground loops and protects controllers from transients, reducing system downtime.
Recommended
Automotive Body Electronics
In automotive body electronics, the ISO1042BDWVR ensures reliable CAN communication between ECUs while providing galvanic isolation to protect sensitive electronics from high-voltage transients. Its 70V bus fault protection and wide temperature range meet automotive requirements. The device supports CAN FD for faster firmware updates and data logging. Its small SOIC-8 package saves PCB space in space-constrained body control modules.
Recommended
Motor Control
The ISO1042BDWVR is used in motor control systems to isolate the controller from the high-voltage motor drive side. Its 1060 Vrms isolation rating protects the low-voltage logic from voltage spikes generated by inductive loads. The 5 Mbps data rate allows real-time control commands and feedback. The device's robust ESD protection ensures reliability in electrically noisy environments, making it suitable for variable frequency drives and servo drives.
Recommended
Building Automation
The ISO1042BDWVR provides safe isolation for CAN networks in building automation systems, such as HVAC controllers and lighting systems. Its 70V bus fault protection guards against wiring errors and surges. The device's low-power operation and wide temperature range make it suitable for always-on applications. The isolation barrier ensures safety for maintenance personnel and prevents ground loops between different building zones.
Recommended
Medical Equipment
In medical equipment, the ISO1042BDWVR provides reinforced isolation to protect patients and operators from electrical hazards. Its 1060 Vrms working isolation meets safety standards for medical devices. The device's low EMI and robust design ensure reliable communication in sensitive environments. The wide temperature range supports various medical applications, from diagnostic equipment to patient monitoring systems.
Recommended
Test and Measurement
The ISO1042BDWVR is used in test and measurement equipment to isolate measurement circuits from the CAN bus, preventing ground loops and ensuring accurate readings. Its high data rate and low propagation delay enable precise timing in automated test systems. The device's robust protection features make it suitable for field testing in harsh environments. The small package allows for compact instrument designs.
Recommended
Recommended Products Summary
Engineering reference data for ISO1042BDWVR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ISO1042DWVR | ISO1042BDWV | ISO1042DWV | ISO1042 | TJA1051T/3/1 |
|---|---|---|---|---|---|---|
| Package | SOIC-8 (DWV) | SOIC-8 (DWV) | SOIC-8 (DWV) | SOIC-8 (DWV) | SOIC-8 (DWV) | SOIC-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Isolation | Galvanic (1060 Vrms) | Galvanic (1060 Vrms) | Galvanic (1060 Vrms) | Galvanic (1060 Vrms) | Galvanic (1060 Vrms) | None (requires external isolation) |
| Data Rate | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) | 5 Mbps (CAN FD) |
| Bus Fault Protection | ±70 V | ±70 V | ±70 V | ±70 V | ±70 V | ±58 V |
| Operating Temperature | -40°C to 125°C | -40°C to 125°C | -40°C to 125°C | -40°C to 125°C | -40°C to 125°C | -40°C to 150°C |
| Supply Voltage (Logic) | 1.8V / 5.5V | 1.8V / 5.5V | 1.8V / 5.5V | 1.8V / 5.5V | 1.8V / 5.5V | 3.3V / 5V |
| ESD Protection | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated galvanic isolation (vs TJA1051T/3/1)
- Higher bus fault protection (vs TJA1051T/3/1)
- Wider logic supply range (vs TJA1051T/3/1)
Design Notes
Maintain proper creepage and clearance distances between the isolated and non-isolated sides of the PCB to meet safety standards. The ISO1042BDWVR provides 1060 Vrms isolation, so the PCB layout must ensure at least the minimum creepage distance specified in the datasheet. Use a solid ground plane on each side and avoid routing traces across the isolation barrier.
Ensure the logic-side supply (VCC1) is regulated to 1.8V or 5.5V as specified. Use a low-dropout regulator if the input voltage is higher. The bus-side supply (VCC2) should be decoupled with a 100nF capacitor close to the pin. Proper power supply filtering reduces noise and ensures reliable CAN communication.
Do not forget to include bus termination resistors (typically 120 ohms) at both ends of the CAN bus. Incorrect termination can cause signal reflections and communication errors. Also, ensure that the CANH and CANL lines are not swapped, as this will prevent communication. Refer to the ISO11898-2 standard for proper bus wiring.
Compliance Information
RoHS compliant per TI product page. AEC-Q100 not applicable as this is not an automotive-qualified part.
