Smallest reinforced isolated CAN FD transceivers deliver the industry's highest bus fault protection

03/05/2019

Texas Instruments (TI) introduced two new isolated Controller Area Network (CAN) flexible data rate (FD) transceivers that combine the industry’s highest bus fault protection, highest common-mode transient immunity (CMTI), and lowest electromagnetic emissions into a 35 percent smaller package. With a higher working voltage than competing devices and faster communication speeds than the classic CAN standard, the ISO1042 and ISO1042-Q1 help engineers better protect low-voltage circuits and increase communication throughput in industrial applications such as grid infrastructure, motor drives and building automation, as well as hybrid electric vehicles and electric vehicles (HEVs/EVs).

Key features and benefits of TI’s ISO1042 and ISO1042-Q1 isolated CAN FD transceivers

• Highest working voltage: With an 18 percent higher working voltage of 1,000 Vrms and a withstand voltage of 5,000 Vrms, the ISO1042 and ISO1042-Q1 feature longer lifetimes, resulting in improved system reliability.
• Increased device protection: Featuring a high bus fault protection of ±70 V, which provides a 20 percent higher short-to-DC margin, the ISO1042 and ISO1042-Q1 protect 12-, 24- and 48-V battery or power-supply systems during high-voltage shorts.
• Industry-leading immunity and emissions:
• Highest electromagnetic immunity: The ISO1042 and ISO1042-Q1 feature a CMTI of 85 kV/us (minimum) with high ESD protection of +/- 8 kV, using the International Electrotechnical Commission (IEC) testing standard, which helps engineers design electronics that can maintain operation in noisy environments.
• Lowest EMC emissions: The ISO1042 and ISO1042-Q1 deliver the industry’s lowest electromagnetic compatibility (EMC) emissions, thereby maintaining system signal integrity. The ISO1042-Q1 meets the automotive industry standard (IEC TS62228) for robust EMC.
• Drive signals faster in CAN-based systems: These transceivers support CAN FD speeds up to 5 Mbps with a short loop delay of 215 ns (maximum), enabling faster payload compared to classic CAN.

More details are available here.

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