ISO1641BDR

Overview

The ISO1641BDR is a hot-swappable, robust-EMC bidirectional I2C isolator with a unidirectional clock. It features capacitive coupling technology and operates within a supply voltage range of 2.25 V to 5.5 V. The device provides 3000 Vrms isolation voltage and supports data rates up to 3.4 Mb/s. It includes a shutdown function and exhibits propagation delays as low as 11 ns. Operating temperatures span from -40°C to +125°C.

Feature Summary

• Hot-swappable capability for safe insertion during system operation
• Robust electromagnetic compatibility performance
• Bidirectional data transmission with unidirectional clock support

Applications

• Industrial communication systems requiring I2C isolation
• Medical equipment needing galvanic isolation
• Automotive electronic control units

Procurement Notes

Verify the specific suffix 'BDR' corresponds to the SOIC-8 package and tape-and-reel quantity. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the supplier provides valid traceability documentation for this Texas Instruments component.

Selection Notes

Select this component when bidirectional I2C isolation with hot-swap capability is required. Consider the 3000 Vrms isolation rating and 50kV/µs common-mode transient immunity. Evaluate power consumption against system constraints, noting the typical operating current specifications.

Part Context

Part of the ISO164x series of digital isolators designed for high-speed I2C applications. Manufactured by Texas Instruments using capacitive coupling technology. Available in an 8-pin SOIC package suitable for surface mount assembly.

Replacement Considerations

Check for direct substitutes within the ISO164x family or other TI I2C isolators with similar pinouts and electrical characteristics. Verify compatibility with existing PCB layouts and signal integrity requirements before substitution.