ISOW7840FDWE

Overview

The ISOW7840FDWE is a high-performance, reinforced quad-channel digital isolator from Texas Instruments. It integrates four independent channels with a 4/0 input-to-output configuration in a 16-pin SO-MOD (DWE) package. The device supports data rates up to 100 Mbps and offers a 5000 Vrms isolation rating. It operates on a wide supply voltage range of 2.25V to 5.5V and functions within an extended temperature range of -55°C to 125°C. Key electrical characteristics include a maximum propagation delay of 17.6 ns and a common-mode transient immunity of 100 kV/µs.

Feature Summary

• Integrates four unidirectional signal channels with reinforced insulation barriers for robust signal transmission.
• Features integrated power capability allowing operation with isolated or non-isolated supplies across a wide voltage range.
• Provides high-speed data integrity with signaling rates up to 100 Mbps and low pulse width distortion.
• Designed for long-term reliability with a projected lifetime exceeding 100 years at 1 kVRMS working voltage.

Applications

• Industrial automation systems requiring galvanic isolation between control and field devices.
• Medical equipment needing reinforced isolation for patient safety and signal integrity.
• Power electronics monitoring interfaces in inverters and motor drives.
• Data acquisition systems in harsh electromagnetic environments.

Procurement Notes

Verify the specific suffix FDWE against the manufacturer's current datasheet to confirm the package type and tape-and-reel specifications. Ensure compatibility with your PCB footprint for the 16-SO-MOD package. Check for RoHS compliance status and moisture sensitivity level requirements before integration into the manufacturing process.

Selection Notes

Select this component when reinforced isolation ratings are mandatory for safety standards. The 4/0 channel configuration suits applications requiring multiple outputs from a single source without reverse communication. Consider the wide operating temperature range for extreme environmental conditions. Verify that the 100 Mbps data rate meets the system's timing requirements.

Part Context

This part belongs to the ISOW784x family of high-performance digital isolators. It shares architectural similarities with other members like the ISOW7840FDWER but differs in packaging and reel specifications. The DWE package provides a compact solution for space-constrained designs while maintaining high isolation performance.

Replacement Considerations

The ISOW7840FDWER is a functional equivalent within the same family, differing primarily in packaging format. Verify pinout compatibility and thermal characteristics when substituting. No direct cross-brand replacements are confirmed in public documentation.