Q: What are the main features of the ISOW1044DFMR?
A: The ISOW1044DFMR is an isolated CAN FD transceiver with an integrated low-emissions, low-noise DC-DC converter. It complies with the ISO 11898-2:2016 physical-layer standard, supports Classical CAN up to 1 Mbps and CAN FD up to 5 Mbps, and provides ±58 V DC bus fault protection. It also features a 10 Mbps GPIO channel, remote wake-up, ±12 V common-mode input range, high common-mode transient immunity, ESD protection, current limiting, and thermal shutdown. The device operates from -40°C to +125°C and is available in a 20-pin wide SOIC package.
Q: What is the ISOW1044DFMR used for?
A: The ISOW1044DFMR is used to provide galvanically isolated CAN communication while also supplying isolated power, which can reduce the need for separate isolation and power-conversion components. It is suitable for industrial automation, motor control, energy equipment, building systems, instrumentation, and other CAN or CAN FD applications where electrical isolation and noise immunity are important. The integrated isolated power output can also provide additional current for supporting external interface circuits.
Q: Dose it have any Alternative manufacturer and part number?
A: Yes. Within the Texas Instruments product family, the ISO1042BDWR and ISO1042BDWVR can be considered functional alternatives for isolated CAN FD applications, although they do not provide the same integrated isolated DC-DC power architecture as the ISOW1044DFMR. Other isolated CAN transceivers from manufacturers such as Analog Devices and NXP may also be considered. When selecting an alternative, designers should carefully compare isolation rating, CAN data rate, bus-fault protection, power architecture, package, pinout, supply requirements, and whether an external isolated power supply is required.
Q: Is technical support available for this part?
A: Yes. Technical support is available for the ISOW1044DFMR, including CAN and CAN FD configuration, isolation requirements, DC-DC power design, EMC considerations, bus protection, GPIO functions, thermal considerations, and application guidance. Professional distributors can also provide datasheet information, evaluation assistance, alternative-part evaluation, sourcing support, and troubleshooting guidance for prototype development and production applications.
