ISOW7841AQDWEQ1

Overview

The ISOW7841AQDWEQ1 is an automotive-grade, reinforced quad-channel digital isolator manufactured by Texas Instruments. It integrates a high-efficiency DC-DC converter to provide isolated power alongside signal isolation. The device features a 3/1 channel configuration with unidirectional data flow and supports data rates up to 100 Mbps. It offers a 5000 Vrms insulation voltage and a common-mode transient immunity of 100 kV/µs. Operating within a temperature range of -40°C to +125°C, it utilizes a 16-SOIC package.

Feature Summary

• Integrates a high-efficiency, low-emissions DC-DC converter for isolated power generation
• Provides reinforced isolation for four independent digital channels
• Features high common-mode transient immunity for noise-resistant operation
• Complies with AEC-Q100 automotive qualification standards

Applications

• Automotive inverter gate drive circuits
• On-board charger (OBC) systems
• Battery management system (BMS) interfaces
• Electric vehicle motor control units

Procurement Notes

Verify the specific suffix 'EQ1' confirms AEC-Q100 automotive qualification and mass production status. Confirm the 'DW' or 'DWR' package variant matches the required PCB footprint. Ensure the integrated DC-DC converter output specifications align with the target application's power requirements before finalizing procurement.

Selection Notes

Select this component when reinforced isolation and integrated isolated power are required in a single package. It is suitable for applications demanding high CMTI and wide operating temperature ranges. Consider the 3/1 channel layout against alternatives if bidirectional communication or different channel counts are needed.

Part Context

This part belongs to the ISOW7841 family of automotive digital isolators. It combines capacitive coupling for signals and magnetic coupling for power transfer. The series is designed to replace discrete isolation solutions, reducing board space and complexity in high-voltage automotive environments.

Replacement Considerations

Check ISOW7841A-Q1 variants for package differences. Verify compatibility with ISO7841 series if isolated power is not required.