ISO7241CDW

Overview

The ISO7241CDW is a quad-channel digital isolator from Texas Instruments, utilizing capacitive coupling technology for signal transmission. It features a 3/1 channel configuration with unidirectional data flow, supporting a maximum data rate of 25 Mbps. The device provides 2500 Vrms isolation voltage and exhibits a common-mode transient immunity of 25 kV/µs. Electrical specifications include a maximum propagation delay of 42 ns and a typical rise/fall time of 2 ns. It operates on a supply voltage range of 3.15 V to 5.5 V and functions within an industrial temperature range of -40°C to +125°C. The component is housed in a 16-pin SOIC package.

Feature Summary

• Provides galvanic isolation via capacitive coupling technology to protect low-voltage circuits from high-voltage noise.
• Ensures signal integrity through high common-mode transient immunity capabilities against rapid voltage changes.
• Supports high-speed digital communication with a data rate capability of up to 25 Mbps across four channels.

Applications

• Industrial automation systems requiring isolated sensor interfaces
• Medical equipment needing patient isolation barriers
• Power electronics control circuits for motor drives

Procurement Notes

Verify the specific suffix 'DW' confirms the standard SOIC-16 package width and lead form. Confirm RoHS compliance status as indicated in official documentation. Ensure the operating temperature range meets the specific environmental requirements of the target application before finalizing procurement decisions.

Selection Notes

Select this component when a quad-channel solution with 3 inputs and 1 output is required. Consider the 25 Mbps speed limit for bandwidth needs. Evaluate the 2500 Vrms isolation rating against system safety standards. Compare power consumption figures if energy efficiency is a critical design constraint.

Part Context

This part belongs to the ISO7241C series of high-speed digital isolators. It serves as a robust alternative to traditional optocouplers, offering superior performance in terms of speed, size, and consistency. The series is designed for applications demanding reliable signal transmission across isolation barriers in noisy environments.

Replacement Considerations

Check for ISO7241CDWR as a reel-based variant with identical electrical characteristics. Verify pinout compatibility with existing PCB layouts before substituting. Ensure any replacement maintains the same 2500 Vrms isolation rating and SOIC-16 footprint.