ISOW7843DWER

Overview

The ISOW7843DWER is a high-performance, reinforced quad-channel digital isolator manufactured by Texas Instruments. It features four channels of isolation for digital communication applications with a data rate of 100 Mbps and a common-mode transient immunity of 100 kV/µs. The device operates within a supply voltage range of 3 V to 5.5 V and supports an operating temperature range from -40°C to +125°C. It utilizes capacitive coupling technology and is housed in a 16-SOIC package with a width of 7.50 mm.

Feature Summary

• Provides four isolated channels for robust digital signal transmission
• Features reinforced insulation design for enhanced safety compliance
• Incorporates fail-safe output functionality to ensure defined states during fault conditions

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced isolation barriers
• Power metering and energy management interfaces

Procurement Notes

Verify the specific suffix 'DWER' indicates tape-and-reel packaging when ordering. Confirm that the required isolation rating matches the reinforced specification of the datasheet. Ensure the operating environment falls within the specified temperature limits. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when four independent isolation channels are required in a single package. Consider the 100 Mbps data rate for moderate-speed digital signals. Evaluate the 16-SOIC footprint against available PCB space. Compare common-mode transient immunity requirements against system noise environments before finalizing the choice.

Part Context

This part belongs to the ISOW784x family of digital isolators from Texas Instruments. It shares architectural similarities with other members like the ISOW7844 but differs in channel configuration. The family emphasizes high reliability and low power consumption for industrial and medical applications using advanced capacitive isolation technology.

Replacement Considerations

The ISOW7843DWE is a tube-packaged variant of the same electrical component. Verify pinout compatibility and package dimensions when substituting between reel and tube formats. No functional differences exist between these variants regarding electrical performance.