ISO7641FMDWR

Overview

The ISO7641FMDWR is a low-power quad-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It provides galvanic isolation with a 2500 Vrms insulation voltage and supports data rates up to 150 Mbps. The device operates on a supply voltage range of 2.7 V to 5 V, drawing typical currents of 8.2 mA and 35 mA for the respective sides. It features a propagation delay of 7 ns and functions within an industrial temperature range of -40°C to +125°C.

Feature Summary

• Provides four independent unidirectional signal channels for robust galvanic isolation
• Optimized for low power consumption suitable for energy-efficient designs
• Ensures high-speed data transmission with a 150 Mbps rate capability
• Delivers reliable performance across extended industrial temperature ranges

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing safe patient isolation barriers
• Power electronics monitoring circuits with high-voltage separation needs
• Automotive electronic control units demanding reliable signal integrity

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS standards as per manufacturer documentation. Confirm the 'R' suffix denotes tape-and-reel packaging for automated assembly processes. Ensure the component meets moisture sensitivity level requirements for storage and handling procedures defined in the datasheet.

Selection Notes

Select this component when four isolated channels are required in a compact surface-mount footprint. Consider the 2500 Vrms isolation rating for applications involving moderate voltage differences between circuit domains. Evaluate the 150 Mbps speed against system timing constraints to ensure adequate signal fidelity without excessive power draw.

Part Context

This part belongs to the ISO764xFM family of low-power digital isolators. It complements other variants like the ISO7640 and ISO7631 by offering a balanced combination of channel count and data throughput. The series is designed to replace optocouplers in modern interface designs.

Replacement Considerations

The ISO7641FMDW serves as the tube-packaged equivalent of this reel-delivered part. Verify pinout compatibility and electrical specifications before substituting with other family members such as the ISO7640 or ISO7631.