ISOW7742FQDFMRQ1

Overview

The ISOW7742FQDFMRQ1 is an automotive-grade, quad-channel digital isolator from Texas Instruments. It features a 2/2 channel configuration with a data rate of 100 Mb/s and reinforced insulation voltage of 5000 Vrms. The device operates on a supply voltage range of 2.97 V to 5.5 V, with a typical propagation delay of 10.7 ns. It supports general-purpose, SPI, and UART protocols. Packaged in a 20-SOIC format, it functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrated isolated power supply capability for simplified system design
• Automotive qualification compliant with AEC-Q100 standards
• Reinforced insulation rating for high-voltage safety isolation

Applications

• Automotive battery management systems
• Inverter control circuits
• On-board charging (OBC) interfaces

Procurement Notes

Verify the specific suffix 'F' indicates the required tape and reel packaging configuration. Confirm the device meets AEC-Q100 Grade 1 requirements for your target operating temperature range. Ensure the SOIC-20 footprint matches your PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when integrated isolated power is required to reduce external transformer complexity. It is suitable for designs needing high common-mode transient immunity and reinforced isolation ratings. Compare against non-integrated power variants if external isolation transformers are preferred for specific thermal or space constraints.

Part Context

This part belongs to the ISOW774x-Q1 family of quad-channel digital isolators. It distinguishes itself by integrating an isolated DC/DC converter, eliminating the need for external magnetic components. This integration reduces board space and simplifies the bill of materials for automotive applications requiring robust galvanic isolation.

Replacement Considerations

The ISOW7742QDFMRQ1 is a related variant within the same family. Verify if the specific packaging or internal configuration differences between the 'F' and standard suffixes impact your assembly process.