ISO6740QDWRQ1

The ISO674x-Q1 devices are high-performance quad-channel digital isolators offering UL 1577-compliant isolation ratings up to 5000VRMS, making them ideal for cost-sensitive applications with such requirements. These devices are also certified by VDE, TUV, CSA, and CQC, and meet VDA320 isolation requirements. While isolating CMOS or LVCMOS digital I/O, the ISO674x-Q1 devices provide high electromagnetic immunity, low emissions, and low power consumption. The logic input and output buffers of each isolation channel are separated by dual-capacitor silicon dioxide (SiO₂) insulation barriers. These devices feature an enable pin that can be used to place their respective outputs in a high-impedance state in multi-master drive applications. The ISO6740-Q1 has four channels all in the same direction, the ISO6741-Q1 has three forward channels and one reverse channel, and the ISO6742-Q1 has two forward channels and two reverse channels. In the event of input power or signal loss, devices without the suffix F default to a high output, while devices with the suffix F default to a low output. Used in conjunction with an isolated power supply, the ISO674x-Q1 devices help prevent noise currents on data buses such as CAN and LIN from damaging sensitive circuits. Through innovative chip design and routing techniques, the EMC performance of the ISO674x-Q1 devices is significantly enhanced, enabling them to easily meet system-level ESD, EFT, surge, and radiated emissions compliance requirements. The ISO674x-Q1 family is available in a 16-pin wide-body SOIC (DW) package and serves as a pin-to-pin upgrade over previous-generation devices.

Applications

• Hybrid, electric, and powertrain systems (EV/HEV)
• Battery management systems (BMS)
• On-board chargers
• DC/DC converters
• Inverters and motor control

Key features

• Documentation available for functional safety system design
• High-performance quad-channel digital isolator with UL 1577-compliant isolation rating up to 5000VRMS
• Certified by VDE, TUV, CSA, and CQC
• Meets VDA320 isolation requirements
• Robust 50Mbps isolation barrier with long operational lifetime at 1500VRMS working voltage
• Isolation rating up to 5000VRMS, surge capability up to 10kV, typical CMTI of ±150kV/μs
• High electromagnetic immunity, low EMI, and low power consumption
• Logic input and output buffers separated by dual-capacitor silicon dioxide (SiO₂) insulation barrier
• Enable pin for high-impedance output state in multi-master drive applications
• Low propagation delay: 11ns (typical)
• Excellent EMC with system-level ESD, EFT, and surge immunity
• ±8kV IEC 61000-4-2 contact discharge protection across the entire isolation barrier
• Low EMI
• Wide-body SOIC (DW-16) package
• Safety-related certifications: DIN VDE V 0884-11:2017-01, UL 1577 Component Recognition Program, IEC 62368-1, IEC 61010-1, IEC 60601-1, GB 4943.1-2011 (pending)