CMT1042

The CMT10XXX is an electrically isolated CAN transceiver compliant with ISO 11898-2 (2016). It provides ±70V DC bus fault protection and a ±30V common-mode voltage range. The device supports data rates up to 5Mbps in CAN FD mode, enabling faster payload transmission compared to Classic CAN. The SiO2 isolation barrier withstands 5000VRMS and supports 1060VRMS working voltage. EMC performance is significantly enhanced, achieving system-level ESD, EFT, and surge protection while meeting radiated emissions standards. When used with an isolated power supply, it protects against high-voltage transients and prevents noise currents on the bus from entering the local ground. Both basic and reinforced isolation grades are available. Supports a wide ambient temperature range of –40°C to +125°C, available in (WB) SOIC16, DUB8, and SOW8L packages.

Applications

• Isolated CAN bus
• Inverter and motor control
• PLC and DCS communication modules
• Battery management systems (BMS)
• Industrial power applications

Key features

• Compliant with DIN VDE V 0884-11: 2017-01
• UL 1577 component recognition
• CSA and CQC certified
• Compliant with ISO11898-2
• Up to 5kV RMS isolation voltage
• Supply voltage range: VDD1: 2.5V to 5.5V; VDD2: 4.5V to 5.5V
• Data rate: 1Mbps (CMT1050); 5Mbps (CMT1042/CMT1052)
• DC bus fault protection voltage: ±70V
• Common-mode voltage range: ±30V
• Driver dominant timeout (TXD DTO)
• Overcurrent and over-temperature protection
• Ideal unpowered passive, high-impedance bus termination
• High CMTI: 150kV/us
• Bus pin HBM ESD tolerance: 6kV
• Operating temperature range: -40°C to 125°C
• Low loop delay: < 220 ns
• Enhanced EMC: system-level ESD, EFT, surge immunity
• Supports (WB) SOIC16, DUB8, and SOW8L packages