ISO7041QDBQRQ1

Overview

The ISO7041QDBQRQ1 is an automotive-grade, ultra-low power quad-channel digital isolator from Texas Instruments. It provides galvanic isolation for CMOS or LVCMOS digital I/O signals using capacitive coupling technology. The device operates within a supply voltage range of 2.25 V to 3.6 V and supports data rates up to 2 Mb/s. Key electrical specifications include a propagation delay of 140 ns and a maximum operating supply current of 115.7 µA. It features a 3000 Vrms insulation voltage rating and functions reliably across a minimum operating temperature of -55°C. The component is housed in a 16-pin SSOP package.

Feature Summary

• Ultra-low power consumption suitable for thermally constrained designs
• Automotive qualification compliant with AEC-Q100 standards
• Capacitive coupling architecture for high reliability
• Quad-channel configuration for multi-signal isolation

Applications

• Isolation of digital I/O in automotive electronic control units
• Battery management systems requiring low-power signal separation
• Infotainment system interface isolation
• Sensor signal conditioning in harsh electromagnetic environments

Procurement Notes

Verify the complete part number including suffixes such as Q1 and RQ1 to ensure correct automotive grade and tape-and-reel packaging. Confirm that the specific revision matches the required datasheet version for accurate timing and thermal parameters. Cross-reference manufacturer codes to distinguish between genuine Texas Instruments components and potential counterfeits. Ensure storage conditions adhere to moisture sensitivity level requirements prior to assembly.

Selection Notes

Select this component when designing systems requiring certified automotive reliability combined with minimal power dissipation. It is appropriate for applications where space is limited due to its compact SSOP-16 footprint. Consider this isolator for interfaces connecting low-voltage logic to higher potential domains where moderate data speeds are sufficient. Evaluate thermal performance if multiple channels operate simultaneously at maximum data rates.

Part Context

This device belongs to the ISO7041 family of digital isolators, which utilizes edge-modulation techniques to achieve low power usage. The Q1 suffix denotes automotive qualification, ensuring compliance with rigorous industry standards for durability and performance under varying environmental conditions. The RQ1 suffix indicates the reel packaging format used for automated surface-mount assembly processes.

Replacement Considerations

Direct replacements must match the 16-pin SSOP package and 3000 Vrms isolation rating. Verify that alternative parts support the same 2.25 V to 3.6 V supply range and meet AEC-Q100 requirements. Check pin compatibility to ensure seamless integration without PCB redesign.