ISOW7841AQDWERQ1

Overview

The ISOW7841AQDWERQ1 is an automotive-grade, reinforced quad-channel digital isolator featuring an integrated high-efficiency DC-DC converter. It provides 5000-Vrms isolation with a data rate of 100 Mbps and a common-mode transient immunity of 100 kV/µs. The device supports a 3/1 channel configuration within a 16-pin SOIC package, operating between -40°C and 125°C on 3 V to 5.5 V supplies.

Feature Summary

• Integrated high-efficiency DC-DC converter eliminates external power supply requirements for the isolated side.
• Reinforced insulation design meets strict automotive safety standards for galvanic isolation.
• High-speed signal transmission capability ensures reliable communication in noisy environments.

Applications

• Automotive battery management systems
• Inverter control circuits
• On-board charger interfaces

Procurement Notes

Verify the specific suffix 'QDWERQ1' to confirm the tape-and-reel packaging format and automotive qualification status. Ensure the order matches the exact Texas Instruments part number to avoid confusion with non-automotive variants or different package styles such as tubes.

Selection Notes

Select this component when reinforced isolation and integrated power conversion are required in space-constrained automotive designs. The 3/1 channel layout suits applications needing multiple input signals and one feedback path. Verify thermal performance under maximum load conditions.

Part Context

This part belongs to the ISOW7841A family of automotive digital isolators. It utilizes capacitive coupling technology for signal transmission while integrating magnetic coupling for the internal power converter. The series is designed to replace bulky transformer-based solutions in modern vehicle electronics.

Replacement Considerations

Direct substitutes include ISOW7841AQDWEQ1 for tube packaging or ISOW7841A-Q1 generic variants. Cross-reference datasheets to ensure identical pinouts and electrical characteristics before substitution.

FAQ

What is the maximum data rate supported by this isolator?

The device supports a maximum data rate of 100 Mbps.

Does the ISOW7841AQDWERQ1 require an external power source for the secondary side?

No, it includes an integrated high-efficiency DC-DC converter that powers the isolated side directly from the primary supply.