ISO6721BQDRQ1

Overview

The ISO6721BQDRQ1 is an automotive-grade, dual-channel digital isolator from Texas Instruments. It features a SOIC-8 package with unidirectional signal paths. Key electrical parameters include a data rate of 50 Mbps and a minimum common-mode transient immunity (CMTI) of 100 kV/µs. The device supports supply voltages of 1.71 V to 1.89 V or 2.25 V to 5.5 V. It offers reinforced isolation ratings of 3000 Vrms and basic isolation of 5000 Vrms. Operating temperatures range from -40°C to +125°C.

Feature Summary

• Provides high-speed digital communication with 50 Mbps data rates for reliable signal transmission.
• Delivers robust noise immunity through 100 kV/µs common-mode transient immunity.
• Supports flexible logic levels with wide supply voltage ranges for diverse system interfaces.

Applications

• Automotive battery management systems
• Inverter control circuits
• Motor drive applications

Procurement Notes

Verify the specific suffix 'B' indicates the correct isolation rating variant compared to other ISO6721 models. Confirm AEC-Q100 qualification status for automotive deployment. Ensure the SOIC-8 footprint matches the PCB design constraints. Check moisture sensitivity level handling requirements during assembly.

Selection Notes

Select this component when reinforced isolation is required in space-constrained automotive environments. The 8-pin SOIC package facilitates compact layout designs. Consider the 50 Mbps speed sufficient for standard control loops. Evaluate power consumption against system thermal budgets given the operating current specifications.

Part Context

This part belongs to the ISO672x-Q1 family of general-purpose digital isolators. It utilizes capacitive coupling technology for signal transmission across the isolation barrier. The series is designed to meet stringent automotive reliability standards while providing cost-effective isolation solutions for industrial and automotive electronics.

Replacement Considerations

ISO6721RBQDRQ1: Offers similar functionality but may differ in specific isolation ratings or pinout configurations. Verify datasheet compatibility before substitution. Other ISO6721 variants exist; ensure channel count and directionality match the original design requirements.