The Texas Instruments ISO1050DUBR is a galvanically isolated CAN transceiver designed to meet the requirements of ISO 11898-2. It provides differential transmit and receive capability between a CAN controller and the CAN bus. Its logic and bus interfaces are separated by a silicon-dioxide (SiO₂) insulation barrier, with the DUB version providing 2500VRMS isolation.
The ISO1050 supports CAN signaling rates up to 1Mbps, with a typical total loop delay of 150ns and a maximum of 210ns. Additional features include fail-safe outputs, a TXD dominant time-out function, and 50kV/μs typical transient immunity, making it suitable for electrically noisy industrial and control environments.
The logic-side VCC1 supply operates from 3.0V to 5.5V, supporting both 3.3V and 5V microprocessors, while the CAN bus-side VCC2 supply operates from 4.75V to 5.25V. CANH and CANL provide -27V to +40V bus-fault protection, with a recommended -12V to +12V common-mode range. Overtemperature shutdown and undervoltage protection further improve system reliability.
The ISO1050DUBR is supplied in an 8-pin SOP (DUB) surface-mount package with nominal dimensions of approximately 9.5mm × 10.4mm including leads. It operates over an ambient temperature range of -55°C to +105°C and is currently listed by TI as an active, RoHS- and REACH-compliant device.
Key Features:
- Manufacturer: Texas Instruments
- Part Number: ISO1050DUBR
- Device Type: Isolated CAN Transceiver
- CAN Standard: ISO 11898-2
- Maximum Data Rate: 1Mbps
- Isolation Rating: 2500VRMS
- Isolation Technology: SiO₂ Capacitive Barrier
- Typical Loop Delay: 150ns
- Maximum Loop Delay: 210ns
- Typical Transient Immunity: 50kV/μs
- VCC1 Supply: 3.0V to 5.5V
- VCC2 Supply: 4.75V to 5.25V
- MCU I/O Support: 3.3V / 5V
- Bus-Fault Protection: -27V to +40V
- Common-Mode Range: -12V to +12V
- Fail-Safe Outputs: Yes
- TXD Dominant Timeout: Yes
- Overtemperature Shutdown: Yes
- Undervoltage Protection: Yes
- Package: SOP-8 / DUB
- Pin Count: 8
- Package Size: Approx. 9.5 × 10.4mm including leads
- Mounting Type: Surface Mount
- Operating Temperature: -55°C to +105°C
- RoHS / REACH Compliant
- Product Status: Active.
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