ISO1042 - Isolated CAN Transceiver With 70-V Bus Fault Protection and Flexible Data Rate

The ISO1042 device is a galvanically-isolated controllerarea network (CAN) transceiver that meets the specifications of the ISO11898-2 (2016) standard. TheISO1042 device offers ±70-V DC bus fault protection and ±30-Vcommon-mode voltage range. The device supports up to 5-Mbps data rate in CAN FD mode allowing muchfaster transfer of payload compared to classic CAN. This device uses a silicon dioxide(SiO₂) insulation barrier with a withstand voltage of 5000V_RMS and a working voltage of 1060 V_RMS.Electromagnetic compatibility has been significantly enhanced to enable system-level ESD, EFT,surge, and emissions compliance. Used in conjunction with isolated power supplies, the deviceprotects against high voltage, and prevents noise currents from the bus from entering the localground. The ISO1042 device is available for both basic andreinforced isolation (see Reinforced and Basic Isolation Options). TheISO1042 device supports a wide ambient temperature range of –40°Cto +125°C. The device is available in the SOIC-16 (DW) package and a smaller SOIC-8 (DWV)package.

• Meets the ISO 11898-2:2016 and ISO 11898-5:2007 Physical Layer Standards
• Supports Classic CAN up to 1 Mbps and FD (Flexible Data Rate) up to 5 Mbps
• Low Loop Delay: 152 ns
• Protection Features
  • DC Bus Fault Protection Voltage: ±70 V
  • HBM ESD Tolerance on Bus Pins: ±16 kV
  • Driver Dominant Time Out (TXD DTO)
  • Undervoltage Protection on V_CC1 and V_CC2
• Common-Mode Voltage Range: ±30 V
• Ideal Passive, High Impedance Bus Terminals When Unpowered
• High CMTI: 100 kV/µs
• V_CC1 Voltage Range: 1.71 V to 5.5 V
  • Supports 1.8-V, 2.5-V, 3.3-V and 5.0-V logic interface to the CAN controller
• V_CC2 Voltage Range: 4.5 V to 5.5 V
• Robust Electromagnetic Compatibility (EMC)
  • System-Level ESD, EFT, and Surge Immunity
  • Low Emissions
• Ambient Temperature Range: –40°C to +125°C
• 16-SOIC and 8-SOIC Package Options
• Automotive Version Available: ISO1042-Q1
• Safety-Related Certifications:
  • 7071-V_PK V_IOTM and 1500-V_PK V_IORM (Reinforced and Basic Options) per DIN V VDE V 0884-11
  • 5000-V_RMS Isolation for 1 Minute per UL 1577
  • IEC 60950-1, IEC 60601-1 and EN 61010-1 certifications
  • CQC, TUV and CSA Certifications
  • All Certifications Planned

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