ISO7741FBDW

Overview

The ISO7741FBDW is a quad-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It features three unidirectional channels on the input side and one on the output side, supporting data rates up to 100 Mb/s. The device utilizes capacitive coupling for isolation with a rated insulation voltage of 5000 Vrms. It operates within a supply voltage range of 2.25 V to 5.5 V, consuming typical currents of 8.6 mA and 18 mA per side. Propagation delay is typically 10.7 ns, with rise/fall times around 3-3.9 ns. It functions reliably between -55°C and +125°C.

Feature Summary

• Provides reinforced electrical isolation via capacitive coupling technology
• Ensures robust electromagnetic compatibility performance
• Offers flexible signal routing with a 3/1 channel configuration

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety barriers
• Power electronics monitoring circuits

Procurement Notes

Verify the specific suffix 'DW' confirms the SOIC-16 package variant. Confirm RoHS compliance status through official manufacturer documentation. Ensure design-in checks align with the specified 5000 Vrms insulation rating requirements for your application safety standards.

Selection Notes

Select this component when reinforced isolation certification is mandatory. The 3/1 channel layout suits applications needing multiple inputs and single outputs. Consider the 100 Mb/s speed limit and SOIC footprint constraints during PCB layout planning.

Part Context

Part of the ISO774x family of high-speed digital isolators. Designed for applications demanding high reliability and noise immunity. Shares architectural similarities with other members but offers specific channel counts and isolation ratings.

Replacement Considerations

ISO7741FBDWR (Reel version)

FAQ

What type of isolation does the ISO7741FBDW use?

It uses capacitive coupling technology for signal transmission across the isolation barrier.

Is the ISO7741FBDW suitable for medical applications?

Yes, it is designed as a reinforced digital isolator, meeting requirements for medical equipment safety.