ISO7041FDBQR

Overview

The ISO7041FDBQR is a four-channel digital isolator from Texas Instruments, designed for ultra-low power applications. It features capacitive coupling isolation with a 3000Vrms isolation rating and 50kV/µs common-mode transient immunity. The device supports bidirectional or unidirectional data transmission at rates up to 2Mbps. It operates on a single supply voltage ranging from 2.25V to 5.5V. Key electrical parameters include a propagation delay of approximately 140ns and a dynamic current consumption below 120µA/Mbps per channel. The component is housed in a 16-lead SSOP package.

Feature Summary

• Ultra-low power architecture suitable for thermally constrained designs
• Robust capacitive isolation technology with high CMTI
• ATE X/IECEx certification for hazardous area compliance

Applications

• Isolation of CMOS or LVCMOS digital I/O interfaces
• Power and thermal limited system designs
• Hazardous area instrumentation and control systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct package type and tape/reel specifications. Confirm that the ATEX/IECEx certification requirements align with your target deployment environment. Check for any recent lifecycle status updates or recommended replacement parts from Texas Instruments before finalizing procurement plans.

Selection Notes

Select this component when low static and dynamic power consumption are critical constraints. Ensure the required isolation voltage meets the 3000Vrms standard. Verify compatibility with the target logic levels (CMOS/LVCMOS) and data rate requirements not exceeding 2Mbps. Consider the 16-SSOP package dimensions for PCB layout compatibility.

Part Context

This part belongs to the ISO7041 family of digital isolators. It utilizes edge-modulation technology to achieve low power consumption while maintaining signal integrity across the isolation barrier. The family is designed to replace traditional optocouplers in many applications, offering better performance and reliability.

Replacement Considerations

Consult the Texas Instruments ISO7041 datasheet for officially listed pin-compatible or functionally equivalent alternatives. Verify that any substitute maintains the same isolation voltage ratings and certification status.