ISO1640BQDRQ1

Digital Isolators Overview

The ISO1640BQDRQ1 is an automotive-grade, bidirectional I2C digital isolator from Texas Instruments. It features two channels with a propagation delay of 80 ns and pulse width distortion of 39 ns. The device operates on supply voltages between 2.5 V and 5.5 V, drawing 2.7 mA or 5.3 mA depending on the channel. It supports I2C protocols and includes a shutdown function. Operating temperatures range from -40°C to +125°C in an 8-SOIC package.

Digital Isolators Feature Summary

• Supports hot-swappable operations for robust system integration
• Provides robust electromagnetic compatibility (EMC) performance
• Enables bidirectional data transmission with integrated clock isolation

Digital Isolators Applications

• Automotive infotainment systems
• Body control modules
• Sensor interface circuits requiring I2C isolation

Digital Isolators Procurement Notes

Verify the specific suffix 'BQDRQ1' to confirm automotive qualification and SOIC-8 packaging. Ensure the design accounts for the 2.5 V minimum supply voltage requirement. Confirm that the 80 ns propagation delay meets the timing constraints of the target I2C bus speed. Check for moisture sensitivity handling requirements during assembly.

Digital Isolators Selection Notes

Select this component when automotive reliability and EMC robustness are critical for I2C isolation. It is suitable for applications requiring bidirectional clock support and hot-swap capability. Consider the 8-SOIC package size for space-constrained designs. Verify that the operating temperature range of -40°C to +125°C aligns with environmental conditions.

Digital Isolators Part Context

This part belongs to the ISO164x-Q1 family of robust-EMC bidirectional I2C digital isolators. It is designed specifically for automotive applications where high reliability and noise immunity are required. The series offers integrated solutions for isolating I2C buses in complex electronic architectures.

Digital Isolators Replacement Considerations

Check for other members of the ISO164x-Q1 family with different pin counts or packages. Verify if non-automotive grades like ISO1640 meet functional requirements if AEC-Q100 certification is not mandatory.