ISO7831DWWR

Overview

The ISO7831DWWR is a triple-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It operates on a supply voltage range of 2.25 V to 5.5 V with a maximum operating current of 13.2 mA. The device supports data rates up to 100 Mb/s and features a propagation delay of 11 ns. It provides an insulation voltage of 5700 Vrms using capacitive coupling technology. The component functions within a temperature range of -55°C to +125°C and includes bidirectional and unidirectional channel configurations.

Feature Summary

• Provides high isolation rating via capacitive coupling for signal transmission across isolated boundaries
• Supports bidirectional and unidirectional data flow across three independent channels
• Operates reliably across extended industrial temperature ranges without shutdown functionality

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced insulation barriers
• Power metering applications with high-voltage separation requirements

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and reel specifications. Ensure compatibility with system voltage levels and thermal management requirements. Confirm RoHS compliance status through manufacturer documentation before integration into production lines.

Selection Notes

Select this component when triple-channel isolation is required with high voltage withstand capabilities. Consider the 100 Mb/s data rate limit and 11 ns propagation delay for timing-sensitive designs. Evaluate power consumption at 13.2 mA against system efficiency targets and thermal dissipation constraints in enclosed environments.

Part Context

This part belongs to the ISO7831 family of high-performance digital isolators. It serves as a solution for replacing traditional optocouplers in space-constrained PCB layouts. The SOIC-16 package facilitates surface-mount assembly while maintaining robust electrical isolation standards for modern electronic interfaces.

Replacement Considerations

ISO7831DWR is a tube-packaged variant of the same functional device. ISO7831FDWWR offers unidirectional polarity options within the same series. Verify pinout compatibility and insulation ratings when substituting with these related components.