ISO7761QDWRQ1

Overview

The ISO7761QDWRQ1 is a six-channel digital isolator from Texas Instruments, designed for automotive applications with AEC-Q100 qualification. It features a wide supply voltage range of 2.25 V to 5.5 V and operates within a temperature range of -40°C to +125°C. The device provides 5000 VRMS isolation rating per UL 1577 standards. Key electrical parameters include a data rate of 100 Mbps, propagation delay of 11 ns, and common-mode transient immunity of 85 kV/µs. It is housed in a 16-pin SOIC package.

Feature Summary

• Six-channel digital isolation architecture supporting bidirectional and unidirectional signal transmission
• High common-mode transient immunity ensuring reliable operation in noisy environments
• Automotive-grade qualification compliant with AEC-Q100 standards for robustness
• Wide operating supply voltage range accommodating various system power requirements

Applications

• Automotive electronic control units requiring galvanic isolation
• Inverter gate drive circuits in electric vehicles
• Battery management systems with high-voltage isolation needs
• Industrial communication interfaces demanding EMC robustness

Procurement Notes

Verify the specific package variant (DW vs DBQ) as isolation ratings differ between packages. Confirm AEC-Q100 qualification status for automotive compliance. Check lead times due to potential supply chain constraints. Ensure ESD protection measures are implemented during handling. Validate compatibility with existing PCB footprint and thermal management strategies.

Selection Notes

Select this component when six isolated channels are required in a compact form factor. Consider the 5000 VRMS rating for higher voltage isolation needs compared to lower-rated alternatives. Evaluate the 100 Mbps data rate against system bandwidth requirements. Assess the SOIC-16 package suitability for automated assembly processes. Compare power consumption metrics if energy efficiency is critical.

Part Context

Part of the ISO776x-Q1 family of automotive digital isolators. Designed to replace optocouplers in modern automotive electronics. Offers improved performance over legacy isolation technologies. Compatible with standard digital logic interfaces. Supports diverse application scenarios in electrified vehicle architectures.

Replacement Considerations

ISO7761QDBQRQ1 offers similar functionality but with 3000 VRMS isolation in an SSOP-16 package. Verify pinout compatibility before substitution. Ensure isolation voltage requirements are met by the alternative package type.