ISOW7841FAQDWEQ1

Overview

The ISOW7841FAQDWEQ1 is an automotive-grade, reinforced quad-channel digital isolator featuring an integrated high-efficiency DC-DC converter. It provides a 3/1 channel configuration with unidirectional data flow. The device supports data rates up to 100 Mb/s and offers a 5000 Vrms isolation voltage. It operates within a supply voltage range of 3 V to 5.5 V and maintains functionality across a temperature range of -40°C to +125°C. Key electrical parameters include a propagation delay of 13 ns, a common-mode transient immunity of 100 kV/µs, and a typical rise/fall time of 4 ns.

Feature Summary

• Integrates a high-efficiency, low-emissions DC-DC converter for isolated power generation
• Provides reinforced insulation suitable for demanding automotive safety applications
• Combines capacitive coupling for signal channels with magnetic coupling for the power stage

Applications

• Automotive inverter gate drive control
• On-board charger (OBC) communication interfaces
• Battery management system (BMS) isolation barriers

Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 qualification status. Ensure the package marking matches the SOIC-16 form factor. Confirm that the integrated DC-DC converter meets the target efficiency requirements for the application. Check for any recent Product Change Notifications regarding assembly or material updates.

Selection Notes

Select this component when a single-chip solution is required for both signal isolation and isolated power delivery. The integrated converter reduces external component count compared to discrete isolator designs. Verify that the 100 Mbps data rate suffices for the specific bus protocol. Ensure the 5000 Vrms rating aligns with the system's creepage and clearance requirements.

Part Context

This part belongs to the ISOW7841A family of automotive digital isolators. It is designed to replace multiple discrete components by combining isolation and power conversion. The Q1 designation indicates compliance with automotive reliability standards. It serves as a critical interface between low-voltage control logic and high-voltage power stages.

Replacement Considerations

Direct substitutes include other ISOW7841 variants with different packaging options such as ISOW7841AQDWERQ1. Cross-reference pinouts and thermal characteristics before substitution. Ensure the replacement maintains the same reinforced isolation rating and integrated converter functionality.