TEXAS INSTRUMENTS ISO1050DUBR 5V Isolated CAN Transceiver, 1Mbps, SOP-8

The TEXAS INSTRUMENTS ISO1050DUBR is a galvanically isolated CAN (Controller Area Network) transceiver designed for reliable data transmission in electrically noisy and harsh industrial environments. It meets the specifications of the ISO11898-2 standard, featuring a silicon oxide (SiO₂) insulation barrier that provides a high isolation voltage of 2500V_RMS. This isolation prevents disruptive noise currents on a data bus from entering the local ground and interfering with or damaging sensitive connected circuitry.

As a high-performance transceiver, the device supports signalling rates of up to 1 megabit per second (Mbps). It offers robust protection features for operation in demanding conditions, including bus fault protection from –27V to 40V, a wide common-mode range of –12V to 12V, and over-temperature shutdown. Its high transient immunity of 50 kV/µs ensures reliable communication even in the presence of electrical surges.

Key Features

• High Isolation: Provides 2500V_RMS isolation, with reinforced insulation rated at 5kV_RMS per TUV standards.
• Robust Protection: Comprehensive protection against cross-wire, over-voltage, loss of ground, and bus faults.
• High-Speed Operation: Supports data rates up to 1 Mbps with low loop delay (150ns typical).
• Wide Compatibility: I/O voltage range supports both 3.3V and 5V microprocessors, offering design flexibility.
• Failsafe Operation: Features failsafe outputs and a driver (TXD) dominant timeout function for predictable bus behaviour.
• Long-Term Reliability: Designed for a typical 25-year operational life at its rated working voltage.

Packaged in a space-saving SOP-8 format, this single-channel device is an essential component for building robust and reliable network nodes, ensuring signal integrity and system longevity in challenging applications.