ISOW7842DWE

Overview

The ISOW7842DWE is a high-performance, reinforced quad-channel digital isolator from Texas Instruments. It integrates an efficient DC/DC converter to provide up to 650 mW of isolated power. The device supports data rates up to 100 Mbps with a propagation delay of 13 ns and a common-mode transient immunity of 100 kV/µs. It operates on supply voltages ranging from 2.25 V to 5.5 V and features a 5000 VRMS isolation rating. The component is housed in a 16-SOIC package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-efficiency DC/DC converter for isolated power generation
• Provides robust reinforced insulation barrier with high transient immunity
• Supports bidirectional signaling at speeds up to 100 Mbps

Applications

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

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape/reel specifications. Ensure the component meets required insulation standards for your application. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit products. Confirm voltage ratings and thermal performance align with system constraints before procurement.

Selection Notes

Select this component when integrated isolated power is required to reduce external BOM complexity. The 2/2 channel configuration suits applications needing balanced input-output isolation. Consider the SOIC-16 footprint for PCB layout compatibility. Validate that the 100 Mbps speed meets signal integrity requirements for the specific communication protocol used.

Part Context

This device belongs to the ISOW784x family of digital isolators. The series is characterized by combining high-speed signal isolation with integrated power conversion capabilities. This integration simplifies design by eliminating the need for separate isolated power supplies while maintaining high reliability and safety standards.

Replacement Considerations

Check for compatible parts within the same family or similar TI isolator lines. Verify pinout compatibility and electrical parameter equivalence. Ensure replacement components meet the same reinforcement insulation ratings and power output requirements.