ISOW7844FDWE

Overview

The ISOW7844FDWE is a quad-channel reinforced digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It features an integrated high-efficiency DC-DC converter for isolated power delivery. The device supports data rates up to 100 Mb/s with a maximum propagation delay of 17.6 ns and common-mode transient immunity of 100 kV/µs. It operates on supply voltages between 3 V and 5.5 V, drawing 54 mA of working current. The isolation voltage rating is 5000 Vrms, ensuring robust signal transmission across galvanic barriers.

Feature Summary

• Integrated high-efficiency DC-DC converter provides isolated power without external components
• Reinforced insulation design meets safety standards for industrial applications
• High common-mode transient immunity ensures reliable operation in noisy environments

Applications

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

Procurement Notes

Verify the specific suffix 'FDWE' corresponds to the tube packaging variant rather than the reel version. Confirm that the integrated DC-DC converter requirements match your system's power budget. Ensure the SOIC-16 footprint aligns with your PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when reinforced isolation and integrated power conversion are required in a single package. Compare against non-integrated isolators if board space allows for separate power supplies. Consider the 100 Mbps data rate limit for high-speed communication needs within the specified temperature range.

Part Context

This part belongs to the ISOW784x family of quad-channel digital isolators. It shares architectural similarities with variants like ISOW7842 and ISOW7844DWER but differs in packaging and channel configuration specifics. The family emphasizes high reliability and compact form factors for modern electronic designs.

Replacement Considerations

ISOW7844DWER serves as a functional substitute with identical electrical characteristics but differs in tape-and-reel packaging. Verify pinout compatibility and thermal performance when swapping between tube and reel variants.