ISO1042QDWRQ1

The ISO1042-Q1 device is an electrically isolated Controller Area Network (CAN) transceiver that complies with the ISO11898-2 (2016) standard specifications. The ISO1042-Q1 device provides ±70V DC bus fault protection and a ±30V common-mode voltage range. This device supports a maximum data rate of 5Mbps in CAN FD mode, enabling faster payload transmission compared to classic CAN. It uses a silicon dioxide (SiO₂) insulation barrier, which can withstand a voltage of 5000V RMS and an operating voltage of 1060V RMS. The electromagnetic compatibility has been significantly enhanced, enabling system-level ESD, EFT, and surge protection and complying with radiation standards. When used with an isolated power supply, this device can withstand high-voltage surges and prevent bus noise current from entering the local ground. The ISO1042-Q1 device can be used for basic and enhanced isolation. The ISO1042-Q1 device supports a wide ambient temperature range from -40°C to +125°C.

Applications

• Starter/Generator
• Battery Management System (BMS)
• DC/DC Converter
• On-Board Charger (OBC) and Wireless Charger
• Inverter and Motor Control

Key features

• AEC Q100 qualified for automotive applications
• Grade 1: -40°C to 125°C ambient temperature range
• Compliant with ISO 11898-2:2016 and ISO 11898-5:2007 physical layer standards
• Supports Classic CAN up to 1Mbps and FD (Flexible Data Rate) up to 5Mbps
• Low loop delay: 152ns
• DC bus fault protection voltage: ±70V
• Bus pin HBM ESD tolerance: ±16kV
• Driver dominant timeout (TXD DTO)
• VCC1 and VCC2 undervoltage protection
• Common-mode voltage range: ±30V
• Ideal passive, high-impedance bus termination when unpowered
• High CMTI: 100kV/µs
• VCC1 voltage range: 1.71V to 5.5V
• Supports 1.8V, 2.5V, 3.3V, and 5.0V logic interfaces for connection to CAN controllers