ISO7231CDWR

Overview

The ISO7231CDWR is a triple-channel digital isolator from Texas Instruments, utilizing capacitive coupling technology. It provides 2500Vrms isolation voltage and supports data rates up to 25Mbps. The device features a 2/1 channel configuration with unidirectional signal paths. It operates within a supply voltage range of 3.15V to 5.5V and functions across an extended temperature range of -40°C to 125°C. Key electrical parameters include a maximum propagation delay of 42ns, typical rise/fall times of 2ns, and a common-mode transient immunity of 25kV/µs. It is housed in a 16-SOIC package.

Feature Summary

• Provides galvanic isolation between circuits using high-speed capacitive coupling technology.
• Features three independent channels configured as two forward and one reverse path for unidirectional signal transmission.
• Ensures signal integrity in noisy environments through high common-mode transient immunity capabilities.

Applications

• Industrial communication interfaces requiring noise isolation
• Medical equipment signal conditioning
• Power management system monitoring

Procurement Notes

Verify the specific suffix 'CDWR' to confirm the tape-and-reel packaging format and commercial grade temperature rating. Ensure compatibility with the required isolation voltage standards for your application design. Cross-reference the manufacturer part number against official distributor catalogs to avoid counterfeit components. Confirm that the 16-SOIC footprint matches your PCB layout constraints before finalizing orders.

Selection Notes

Select this component when a triple-channel isolator with 25Mbps speed is required. The 2/1 channel split suits applications needing more forward than reverse data flow. Consider the 2500Vrms rating against system isolation requirements. Evaluate the SOIC package size against available board space. Compare power consumption figures if energy efficiency is a critical design constraint.

Part Context

This part belongs to the ISO7231 family of high-speed digital isolators. It serves as a robust alternative to traditional optocouplers in modern electronic designs. The series offers improved performance metrics including lower power consumption and higher reliability. It integrates seamlessly into various industrial and consumer interface protocols.

FAQ

What is the maximum data rate supported by the ISO7231CDWR?

The device supports a maximum data rate of 25Mbps per channel.

Does the ISO7231CDWR support bidirectional communication?

No, the channels are unidirectional, with a fixed 2-forward and 1-reverse configuration.