ISO7761FQDBQRQ1

Overview

The ISO7761FQDBQRQ1 is a high-speed, robust EMC, reinforced six-channel digital isolator from Texas Instruments. It features a 5/1 channel configuration with unidirectional signal paths. The device operates within a voltage range of 2.25V to 5.5V and supports data rates up to 100Mbps. It provides 3000Vrms isolation voltage and a minimum common-mode transient immunity (CMTI) of 85kV/µs. Propagation delays are typically 16ns for both low-to-high and high-to-low transitions. The component is housed in a 16-SSOP package and is qualified under AEC-Q100 standards for automotive applications.

Feature Summary

• Reinforced six-channel digital isolation with robust electromagnetic compatibility performance
• High common-mode transient immunity ensuring reliable signal integrity in noisy environments
• Automotive-grade qualification compliant with AEC-Q100 standards for durability
• Capacitive coupling technology enabling high-speed data transmission up to 100Mbps

Applications

• Automotive electronic control units requiring isolated communication interfaces
• Inverter gate drive circuits in electric vehicle powertrains
• Battery management systems needing isolated sensor feedback
• On-board charger and DC-DC converter control loops

Procurement Notes

Verify the complete part number including suffixes such as DBQRQ1 to ensure correct packaging and automotive grade specification. Confirm that the required isolation voltage and CMTI ratings match the system design requirements. Check for RoHS compliance and moisture sensitivity level details in the specific datasheet revision. Ensure the SSOP package dimensions align with the PCB footprint constraints. Validate supply chain authenticity through authorized distributors.

Selection Notes

Select this component when a six-channel isolator with high CMTI is required for automotive CAN or similar bus networks. The 5/1 channel split suits applications with multiple inputs and a single output path. Consider the 16-SSOP package size for space-constrained designs. Evaluate the 100Mbps speed against system timing requirements. Compare against other ISO776x variants if different channel counts or isolation voltages are needed.

Part Context

This device belongs to the ISO776x-Q1 family of automotive digital isolators. It utilizes capacitive coupling technology to provide galvanic isolation between circuit sections. The family includes variants with different channel configurations and speeds. The ISO7761 variant specifically offers six channels optimized for complex automotive networking topologies.

Replacement Considerations

ISO7760FQDBQRQ1 is a parameter-equivalent alternative within the same family offering similar isolation characteristics.