ISO1050DUBR - Isolated CAN Transceiver 2500Vrms | TI SOP-8
MPN: ISO1050DUBR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.85 | $1,850.00 |
Drop-in alternatives for ISO1050DUBR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ISO1050DUB
✅ Drop-In📋 Reference alternative (not in catalog)
ISO1050DUBR Maximum Ratings & Electrical Characteristics
| Type | Isolated CAN Transceiver |
| Number of Channels | 1/1 (TX/RX) |
| Isolation Voltage | 2500 Vrms (DUB package) |
| Data Rate | 1 Mbps |
| Supply Voltage | 5 V |
| Operating Temperature | -55°C to +105°C |
| Package | SOP-8 (DUB) |
| Mounting Type | Surface Mount |
| Loop Delay | 150 ns typical |
| Transient Immunity | 50 kV/µs typical |
| Bus-Fault Protection | 40 V |
| Failsafe Outputs | Yes |
| RoHS Status | Compliant |
| Number of Transceivers | 1 |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
ISO1050DUBR Pin Configuration
| Pin 1 | TXD — Transmit data input |
| Pin 2 | GND1 — Logic side ground |
| Pin 3 | VCC1 — Logic side supply (5V) |
| Pin 4 | RXD — Receive data output |
| Pin 5 | VCC2 — Bus side supply (5V) |
| Pin 6 | CANH — CAN high bus line |
| Pin 7 | CANL — CAN low bus line |
| Pin 8 | GND2 — Bus side ground |
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
ISO1050DUBR is suitable for 6 applications: Industrial Automation, Motor Control, Building Automation, Automotive Body Electronics, Battery Management Systems, Charging Stations.
Industrial Automation
The ISO1050DUBR provides galvanic isolation for CAN networks in factory automation, protecting controllers from ground loops and motor noise. Its 2500 Vrms isolation and 50 kV/µs transient immunity ensure reliable communication in electrically noisy environments. The device operates from -55°C to +105°C, suitable for harsh industrial conditions. It interfaces directly with 5V microcontrollers and supports 1 Mbps data rates, meeting ISO 11898-2 requirements. In a typical PLC system, the ISO1050DUBR isolates the CAN bus from the logic side, preventing damage from voltage spikes. Its low loop delay of 150 ns ensures minimal latency in real-time control loops. The SOP-8 package simplifies PCB layout, and the device requires only a 5V supply on both sides, reducing design complexity.
Recommended
Motor Control
In motor control systems, the ISO1050DUBR isolates the CAN communication interface from high-voltage motor drives, preventing noise and ground shifts from corrupting data. The device's 40V bus-fault protection and failsafe outputs ensure safe operation during faults. With a data rate of 1 Mbps, it supports real-time control commands. The isolation barrier of 2500 Vrms protects low-voltage logic from transient voltages generated by motor switching. The wide temperature range allows operation near motors where heat is generated. The ISO1050DUBR is used in variable frequency drives (VFDs) and servo drives, where it connects the control board to the CAN network. Its low loop delay maintains synchronization in multi-axis systems. The device is compatible with 5V logic and requires minimal external components.
Recommended
Building Automation
The ISO1050DUBR is ideal for building automation networks, such as HVAC and lighting control, where long cable runs create ground potential differences. Its 2500 Vrms isolation prevents ground loops and ensures reliable communication. The device operates from a 5V supply and supports 1 Mbps data rates, sufficient for building control protocols. The failsafe outputs ensure the bus is in a known state during faults. The compact SOP-8 package is suitable for space-constrained controllers. The ISO1050DUBR meets ISO 11898-2, ensuring compatibility with standard CAN devices. Its transient immunity of 50 kV/µs protects against ESD and surge events common in building environments. The wide temperature range allows installation in unconditioned spaces.
Recommended
Automotive Body Electronics
In automotive body electronics, the ISO1050DUBR isolates the CAN bus from body control modules, preventing noise from motors and solenoids from affecting communication. The device's 2500 Vrms isolation is sufficient for 12V systems. It operates over -55°C to +105°C, covering automotive temperature ranges. The 1 Mbps data rate supports body control functions like lighting and windows. The ISO1050DUBR is not AEC-Q100 qualified, so for production vehicles, consider automotive-grade alternatives. However, it is suitable for aftermarket and prototyping. The device's low loop delay ensures responsive control. The SOP-8 package is easy to integrate into existing designs. The failsafe outputs provide predictable behavior during faults.
Recommended
Battery Management Systems
The ISO1050DUBR is used in battery management systems (BMS) to isolate the CAN communication between battery cells and the main controller. The isolation prevents high-voltage transients from damaging the control electronics. With 2500 Vrms isolation, it is suitable for battery packs up to 400V. The device operates from a 5V supply and supports 1 Mbps data rates, enabling fast status updates. The wide temperature range is essential for battery environments. The ISO1050DUBR's failsafe outputs ensure safe operation during communication errors. Its low loop delay allows real-time monitoring. The compact package is ideal for space-constrained BMS modules. The device meets ISO 11898-2, ensuring compatibility with standard CAN networks.
Recommended
Charging Stations
In electric vehicle charging stations, the ISO1050DUBR isolates the CAN communication between the charging controller and the vehicle, ensuring safe data transfer despite high voltages. The 2500 Vrms isolation protects the low-voltage logic from surges. The device supports 1 Mbps data rates, sufficient for charging protocols. Its wide temperature range allows outdoor installation. The ISO1050DUBR's transient immunity of 50 kV/µs handles ESD events. The failsafe outputs ensure the bus is in a defined state during faults. The SOP-8 package is easy to integrate into charging station PCBs. The device operates from a 5V supply, simplifying power design. It meets ISO 11898-2, ensuring interoperability with vehicle CAN networks.
Recommended
Recommended Products Summary
Engineering reference data for ISO1050DUBR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ISO1050DUB | ISO1050DW | ISO1042 | ISO1044 | ADM3053 |
|---|---|---|---|---|---|---|
| Package | SOP-8 (DUB) | SOP-8 (DUB) - same | SOIC-16 (DW) - different | SOIC-8 (DW) - different | SOIC-8 (DW) - different | SOIC-20 - different |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 5000 Vrms | 5000 Vrms | 5000 Vrms | 2500 Vrms |
| Data Rate | 1 Mbps | 1 Mbps | 1 Mbps | 5 Mbps | 5 Mbps | 1 Mbps |
| Supply Voltage | 5 V | 5 V | 5 V | 3.3 V or 5 V | 3.3 V or 5 V | 5 V |
| Operating Temperature | -55°C to +105°C | -55°C to +105°C | -55°C to +105°C | -55°C to +125°C | -55°C to +125°C | -40°C to +85°C |
| Pin Compatibility | Reference | Pin-compatible | Not pin-compatible | Not pin-compatible | Not pin-compatible | Not pin-compatible |
| Lifecycle | Active | Obsolete | Active | Active | Active | Active |
Key Differentiators
- 2500 Vrms isolation in a compact SOP-8 package (vs ISO1050DW)
- Drop-in replacement for obsolete ISO1050DUB (vs ISO1050DUB)
- Lower cost compared to ISO1042 (vs ISO1042)
Design Notes
For the ISO1050DUBR, maintain proper creepage and clearance distances between the logic side (pins 1-4) and bus side (pins 5-8) to achieve the rated 2500 Vrms isolation. Use a PCB with at least 8mm creepage for reinforced insulation. Place the isolation barrier components (if any) symmetrically. Ensure the ground planes are separated under the device to avoid bridging the isolation barrier.
The ISO1050DUBR requires a 5V supply on both VCC1 and VCC2. Use isolated DC-DC converters or a transformer driver like SN6501 to generate the bus-side supply. Decouple each supply pin with a 100nF ceramic capacitor placed close to the pin. The total supply current is typically 5mA, so a small isolated supply is sufficient.
Do not exceed the absolute maximum ratings: VCC to GND is 6V, and bus pins (CANH, CANL) are rated for -27V to +40V. Ensure the bus termination resistor (120 ohms) is placed at both ends of the CAN network. The TXD pin must not be left floating; tie it high when not transmitting. The RXD output is push-pull and can drive a microcontroller directly.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified. Lead-free per datasheet.
