ISO6520QDRQ1

Overview

The ISO6520QDRQ1 is an automotive-grade, dual-channel digital isolator from Texas Instruments, designed for galvanic isolation in harsh environments. It operates with a data rate of 50 Mb/s and supports unidirectional signal transmission. The device features a propagation delay of 11 ns and a pulse width distortion of 7 ns. It withstands an insulation voltage of 450 Vrms and functions within a temperature range of -40°C to +125°C. Power supply requirements include a maximum of 5.5 V and minimums of 1.71 V or 2.25 V depending on the channel. Packaged in an SOIC-8 surface-mount format, it supports GPIO, PWM, and UART protocols.

Feature Summary

• AEC-Q100 qualified for automotive reliability standards
• Dual-channel CMOS output functional isolators with shutdown capability
• High common-mode transient immunity (CMTI) of 100 kV/µs

Applications

• Automotive electronic control units (ECUs)
• Inverter gate drive circuits
• Motor control systems

Procurement Notes

Verify the specific suffix (e.g., QDRQ1) against the official Texas Instruments datasheet to ensure correct package type and tape-and-reel specifications. Confirm AEC-Q100 qualification status matches project requirements. Check humidity sensitivity levels and recommended storage conditions prior to assembly. Ensure the SOIC-8 footprint aligns with PCB design constraints.

Selection Notes

Select this component when dual-channel isolation is required for automotive applications with high-speed digital signals up to 50 Mbps. It is suitable for designs needing robust galvanic isolation between low-voltage logic and higher-voltage power stages. Consider the SOIC-8 package size for space-constrained boards. Verify that the unidirectional nature fits the signal flow direction of the application circuit.

Part Context

This part belongs to the ISO652x-Q1 family of general-purpose dual-channel automotive functional isolators. It shares architectural similarities with other members like the ISO6520FQDRQ1 but may differ in specific marking or packaging variants. The series is engineered to meet stringent automotive quality and performance standards while providing compact integration for interface isolation tasks.

Replacement Considerations

The ISO6520FQDRQ1 is a related variant within the same ISO652x-Q1 family. Verify pinout compatibility and specific electrical parameter tolerances before substitution. Ensure the replacement part meets the same AEC-Q100 qualification level and thermal operating range.