CAN FD Transceivers Deliver Highest Bus Fault Protection

Texas Instruments says its isolated Controller Area Network (CAN) flexible data rate (FD) transceivers combine the industry's highest bus fault protection, highest common-mode transient immunity (CMTI), and lowest electromagnetic emissions into a 35% smaller package. With a higher working voltage than comparable devices and faster communication speeds than the classic CAN standard, the ISO1042 and ISO1042-Q1 reliably protect low-voltage circuits and increase communication throughput in industrial applications such as grid infrastructure, motor drives and building automation, and hybrid electric vehicles and electric vehicles (HEVs/EVs). For more information, see www.ti.com/iso1042-pr and www.ti.com/iso1042-Q1-pr.

 

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  • Highest working voltage: With an 18 percent higher working voltage of 1,000 Vrms and a withstand voltage of 5,000 Vrms, the ISO1042 andISO1042-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 ISO1042and 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-Q1feature 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 Mb/s with a short loop delay of 215 ns(maximum), enabling faster payload compared to classic CAN. 

Package, availability and pricing

The ISO1042 and ISO1042-Q1 are available in either a 16-pin 10.3 mm x 7.5 mm or an eight-pin 5.8 mm x 7.5-mm small-outline integrated (SOIC) package. Pricing starts at $1.69 each/1,000 for industrial versions and $1.99 each/1,000 for automotive versions. In addition, ISO1042DWEVM and ISO1042DWVEVM evaluation modules are available for $49 each.

 

For greater illumination, download the ISO1042 and ISO1042-Q1 data sheets and also watch a video, “Key considerations when selecting isolated CANtransceivers.”

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