ISO7720FQDRQ1

Overview

The ISO7720FQDRQ1 is an automotive-grade, dual-channel digital isolator from Texas Instruments. It features capacitive coupling technology with a unidirectional signal path and operates within a supply voltage range of 2.25 V to 5.5 V. The device supports data rates up to 100 Mb/s with a typical propagation delay of 17 ns. It provides an insulation voltage of 3000 Vrms and withstands a common-mode transient immunity of 85 kV/µs. Packaged in an SOIC-8 format, it functions reliably across temperatures from -40°C to +125°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for robust performance in vehicle environments
• High-speed bidirectional isolation capability supporting data transmission up to 100 Mb/s
• Enhanced electromagnetic compatibility through robust capacitive coupling isolation architecture

Applications

• Automotive gateway systems requiring galvanic isolation between domains
• Inverter control circuits in electric and hybrid vehicles
• On-board charger (OBC) communication interfaces
• Battery management system (BMS) isolated data links

Procurement Notes

Verify the specific suffix 'QDR' confirms the SOIC-8 package and 3000 Vrms insulation rating. Ensure the component meets AEC-Q100 Grade 1 requirements for your target temperature range. Confirm moisture sensitivity level handling procedures are followed during assembly to prevent package damage.

Selection Notes

Select this model when automotive reliability and high common-mode noise rejection are critical. The 3000 Vrms rating suits applications where lower isolation stress is acceptable compared to the 5000 Vrms variants. The SOIC-8 footprint offers a compact solution for space-constrained automotive PCB layouts.

Part Context

This component belongs to the ISO7720 family of automotive digital isolators. It shares core electrical characteristics with other members like the ISO7720QDRQ1 but differs in insulation voltage ratings and package options. The series is designed specifically for harsh automotive environments demanding high durability and signal integrity.

Replacement Considerations

ISO7720QDRQ1 serves as a direct functional substitute with identical pinout and speed, though it offers higher insulation voltage.