ISO7831FDWW

Overview

The ISO7831FDWW is a triple-channel digital isolator manufactured by Texas Instruments, housed in a 16-SOIC package. It features capacitive coupling technology with an insulation voltage of 5700 Vrms and a common-mode transient immunity of 100 kV/µs. The device supports data rates up to 100 Mb/s with propagation delays of 11 ns typical. It operates on a supply voltage range of 2.25 V to 5.5 V, drawing 13.2 mA typically. The component functions within a temperature range of -55°C to +125°C and includes bidirectional and unidirectional channel configurations.

Feature Summary

• Provides high-reliability signal isolation via capacitive coupling technology
• Supports wide supply voltage levels for flexible system integration
• Ensures robust noise immunity against high-frequency transients

Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power metering circuit interfaces

Procurement Notes

Verify the specific suffix FDWW corresponds to the SOIC-16 tube packaging configuration. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the supplier provides official Texas Instruments documentation to validate authenticity. Check lead times as they may vary based on production schedules.

Selection Notes

Choose this component when three isolated channels are required with high voltage ratings. Consider the 16-SOIC footprint for surface-mount applications. Evaluate the 100 Mbps speed against system timing requirements. Verify that the 5700 Vrms isolation rating meets safety standards for your specific application environment.

Part Context

This part belongs to the ISO7831 series of digital isolators from Texas Instruments. It is designed for general-purpose isolation tasks requiring high reliability. The series offers various channel counts and package options to suit different design constraints.

Replacement Considerations

Consult Texas Instruments documentation for direct pin-compatible substitutes within the ISO78xx family. Verify electrical parameters match before swapping components.