ISO7831FDWWR

Overview

The ISO7831FDWWR is a high-performance digital isolator from Texas Instruments featuring three channels in a 16-pin WSOIC package. It provides 5.7kVRMS insulation and supports data rates up to 100Mbps with a propagation delay of 11ns. The device operates on supply voltages between 2.25V and 5.5V, drawing 8.7mA or 13.2mA depending on the channel configuration. It offers 100kV/µs common-mode transient immunity and functions within a temperature range of -55°C to +125°C.

Feature Summary

• Provides reinforced insulation capability with 5.7kVRMS isolation voltage for safety-critical applications
• Delivers high common-mode transient immunity of 100kV/µs to maintain signal integrity in noisy environments
• Integrates three independent channels (two forward, one reverse) for efficient multi-channel signal isolation

Applications

• Industrial automation systems requiring robust galvanic isolation
• Medical equipment needing reinforced insulation for patient safety
• Power metering circuits for accurate energy measurement across potential differences

Procurement Notes

Verify the specific suffix 'DWWR' corresponds to the 16-pin WSOIC package and reel packaging format. Confirm RoHS compliance status through official manufacturer documentation before integration. Ensure design compatibility with the specified 2.25V to 5.5V operating voltage range and thermal requirements for the intended application environment.

Selection Notes

Select this component when three isolated channels are required within a single footprint. It is suitable for designs demanding high reliability and strong noise immunity. Consider the SOIC-16 package dimensions for PCB layout constraints. Evaluate power consumption against system battery life requirements if applicable.

Part Context

This part belongs to the ISO7831 family of digital isolators. It shares architectural similarities with other members like the ISO7810 but differs in channel count and configuration. The series is designed for general-purpose isolation tasks where size and performance balance is critical.

Replacement Considerations

Check for direct pin-to-pin replacements within the same family, such as the ISO7831FDWW, noting any packaging differences. Verify that substitute components meet the same 5.7kVRMS insulation rating and 100Mbps speed requirements.