ISO7741BDW

Overview

The ISO7741BDW is a quad-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It utilizes capacitive coupling technology to provide robust electromagnetic compatibility and reinforced isolation capabilities. The device supports data rates up to 100 Mb/s with a propagation delay of 10.7 ns. It operates within a supply voltage range of 2.25 V to 5.5 V, drawing typical currents of 8.6 mA and 18 mA for the respective sides. The insulation voltage rating is 5000 Vrms, and it functions reliably across an extended temperature range from -55°C to +125°C.

Feature Summary

• Provides four independent channels for high-speed digital signal transmission across isolation barriers.
• Features robust electromagnetic compatibility designed to withstand harsh industrial environments.
• Offers reinforced isolation certification compliant with international safety standards.

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing certified reinforced isolation
• Power metering applications with high-voltage interfaces

Procurement Notes

Verify the specific suffix 'BDW' corresponds to the SOIC-16 tube packaging configuration when ordering. Confirm that the component meets the required reinforced isolation ratings for your specific application safety standards. Ensure the operating temperature range aligns with your system's environmental conditions. Check for RoHS compliance status as indicated in official documentation before finalizing procurement.

Selection Notes

Select this component when four isolated channels are necessary within a single package footprint. Consider the 100 Mb/s data rate capability for synchronous communication protocols. Evaluate the 5000 Vrms insulation voltage against the system's peak working voltage requirements. Compare power consumption figures against other isolators if energy efficiency is a critical design constraint.

Part Context

This part belongs to the ISO774x family of high-speed digital isolators. It shares architectural similarities with the ISO7731 triple-channel variant but provides an additional channel. The device complements Texas Instruments' portfolio of capacitive coupling isolators, offering a balance between performance, size, and isolation reliability for general-purpose and automotive-grade applications.

Replacement Considerations

The ISO7741BDWR serves as the reel-packaged equivalent of this tube-part. Designers may also consider the ISO7741DBQR for SSOP-16 packaging alternatives. Verify pinout compatibility and electrical specifications before substituting with other quad-channel isolators from different manufacturers.