ISO6721FBQDRQ1

Overview

The ISO6721FBQDRQ1 is an automotive-grade digital isolator featuring two independent channels with unidirectional signal transmission. It utilizes capacitive coupling technology to provide robust isolation performance, rated at 3000 Vrms insulation voltage and a common-mode transient immunity of 100 kV/µs. The device supports data rates up to 50 Mbps and operates within a supply voltage range of 1.71 V to 5.5 V. Packaged in an SOIC-8 format, it ensures reliable operation across an extended temperature range from -40°C to +125°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for long-term reliability
• Capacitive isolation architecture providing high common-mode transient immunity
• Unidirectional dual-channel design for simplified circuit integration

Applications

• Automotive engine control units requiring galvanic isolation
• Inverter gate drive circuits in electric vehicle powertrains
• On-board charging systems for isolated communication interfaces

Procurement Notes

Verify the complete part number including suffixes to ensure correct package and tape/reel specifications. Confirm that the component meets specific automotive quality requirements for your application. Check datasheet revisions for any updates regarding recommended operating conditions or pin configurations before finalizing procurement orders.

Selection Notes

Select this component when high common-mode noise rejection is critical in automotive environments. The unidirectional configuration suits applications where signal flow is strictly one-way. Ensure the required insulation voltage and data rate align with system specifications. Consider the SOIC-8 footprint compatibility during PCB layout planning.

Part Context

This device belongs to the ISO6721 family of general-purpose digital isolators designed specifically for automotive electronics. It offers a balance of performance and size, targeting applications needing reliable signal transmission across isolation barriers in harsh electromagnetic environments typical of modern vehicles.

Replacement Considerations

Direct substitutes include other Texas Instruments automotive digital isolators from the same series, such as the ISO6721RFBQDRQ1 or ISO6721QDWVRQ1, provided they match the specific insulation ratings and package dimensions required by the design.