Description:

The ISO1042-Q1 device is an electrically isolated controller area network (CAN) transceiver that meets the ISO 11898-2 (2016) standard specification. The ISO1042-Q1 device provides ±70-V DC bus fault protection and a ±30-V common-mode voltage range. The device supports data rates up to 5 Mbps in CAN FD mode, enabling faster payload transmission than classic CAN. The device uses a silicon dioxide (SiO2) insulation barrier capable of withstanding 5000 VRMS and an operating voltage of 1060 VRMS. Electromagnetic compatibility is significantly enhanced, enabling system-level ESD, EFT, and surge immunity and compliance with radiation standards. When used with an isolated power supply, this device can withstand high-voltage surges and prevent noise currents on the bus from entering the local ground. The ISO1042-Q1 device offers basic and reinforced isolation (see the reinforced and basic isolation options). The ISO1042-Q1 device supports a wide ambient temperature range of –40°C to +125°C and is available in the SOIC-16 (DW) package and the smaller SOIC-8 (DWV) package.

Features:

• AEC-Q100 qualified: meets automotive application requirements

• Grade 1: –40°C to +125°C ambient temperature

• Functional safety available – Documentation available for functional safety system design

• Meets the ISO 11898-2:2016 physical layer standard

• 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 timeout (TXD DTO) – VCC1 and VCC2 undervoltage protection

• Common-mode voltage range: ±30 V

• Ideal passive, high-impedance bus termination when unpowered

• High CMTI: 100 kV/µs

• VCC1 voltage range: 1.71 V to 5.5 V – Supports 1.8-V, 2.5-V, 3.3-V, and 5.0-V logic interfaces to CAN controllers

• VCC2 voltage range: 4.5 V to 5.5 V

• Excellent electromagnetic compatibility (EMC) – System-level ESD, EFT, and surge immunity – Low emissions

• 16-SOIC and 8-SOIC package options

• Industrial version available: ISO1042

• Safety-related certifications: – 7071 VPK VIOTM and 1500 VPK VIORM per DIN VDE V 0884-11:2017-01 (reinforced and basic options) – 5000 VRMS isolation for up to 1 minute per UL 1577 – CQC, TUV, and CSA certifications

Applications:

• Starter/generator

• Battery management system (BMS)

• DC/DC converters

• On-board charger (OBC) and wireless chargers

• Inverters and motor control