ISO6720FBDR

Overview

The ISO6720FBDR is a general-purpose dual-channel digital isolator from Texas Instruments, housed in an SOIC-8 package. It features unidirectional signal transmission with a data rate of 50 Mb/s and insulation voltage of 5000 Vrms using capacitive coupling. The device operates on a supply voltage range of 1.7 V to 5.5 V, with typical power consumption of 2.5 mA and 7.9 mA per channel. Key electrical parameters include a propagation delay of 11 ns, pulse width distortion of 0.7 ns, and common-mode transient immunity of 100 kV/µs. It supports logic levels down to 1.8 V and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides robust galvanic isolation between circuits via capacitive coupling technology
• Supports high-speed digital communication with a maximum data rate of 50 Mbps
• Enables direct interface with low-voltage logic systems starting at 1.8 V
• Offers high common-mode transient immunity for reliable operation in noisy environments

Applications

• Industrial automation and control systems requiring isolated communication
• Power metering and energy monitoring equipment
• Inverters and motor drives with isolated gate drive interfaces
• Medical equipment requiring patient isolation barriers

Procurement Notes

Verify the specific suffix 'FB' against the manufacturer's datasheet to confirm the exact marking code and packaging configuration. Ensure that the SOIC-8 footprint matches the PCB design guidelines provided in the layout documentation. Confirm compliance with RoHS directives and humidity sensitivity levels before assembly processing.

Selection Notes

Select this component when a dual-channel unidirectional isolator is required for basic digital signal transmission. It is suitable for applications needing moderate data rates up to 50 Mbps without shutdown functionality. Consider the 1.8 V logic support if interfacing with low-power microcontrollers or sensors.

Part Context

This part belongs to the ISO672x family of general-purpose basic dual-channel digital isolators. It shares core specifications with variants like the ISO6720BDR but differs in specific ordering suffixes that may indicate marking codes or tape-and-reel configurations. The family is designed for cost-sensitive industrial applications requiring reliable isolation.

Replacement Considerations

The ISO6720BDR is a comparable variant within the same family offering identical electrical performance. Verify if the 'B' suffix denotes a different marking code or packaging option rather than a functional change. Cross-reference pinouts and thermal characteristics to ensure mechanical compatibility.