ISO7761DBQ

Overview

The ISO7761DBQ is a high-speed, robust EMC reinforced six-channel digital isolator from Texas Instruments. It features a 5/1 channel configuration with five input channels driving a single output. The device utilizes capacitive coupling for signal transmission and supports data rates up to 100 Mb/s. It operates within a supply voltage range of 2.25 V to 5.5 V and offers an insulation voltage of 3000 Vrms. The component is housed in a 16-pin SSOP package and is designed for applications requiring high reliability and electromagnetic compatibility.

Feature Summary

• Provides reinforced isolation for six independent channels
• Features robust electromagnetic compatibility performance
• Supports high-speed data transmission up to 100 Mb/s
• Utilizes capacitive coupling technology for signal integrity

Applications

• Industrial automation systems
• Medical equipment isolation
• Power metering circuits
• Inverter motor control interfaces

Procurement Notes

Verify the specific suffix (e.g., DBQ vs. DBQR) to confirm packaging type, as the base model may be obsolete while reel variants remain active. Confirm current manufacturing status directly with Texas Instruments or authorized distributors, as availability for the DBQ variant may be limited compared to its Q1 automotive counterpart or reel versions.

Selection Notes

Select this component when a six-channel isolated interface with a 5/1 directionality is required. Ensure the application demands reinforced isolation ratings and high EMC immunity. Compare against the ISO7761QDWRQ1 if automotive qualification is necessary, or consider the DBQR variant for tape-and-reel processing requirements.

Part Context

This part belongs to the ISO776x family of high-speed digital isolators. It shares architectural similarities with other members like the ISO7731 and ISO7761QDWRQ1 but is distinguished by its six-channel capacity and specific 5/1 pinout configuration. The family is designed to replace traditional optocouplers in space-constrained designs.

Replacement Considerations

The ISO7761DBQ is listed as obsolete. Recommended substitutes include the ISO7761DBQR for identical functionality in reel packaging, or the ISO7761QDWRQ1 for automotive-grade applications. Verify pin compatibility and isolation ratings before substitution.