ISO1644DWR

Overview

The ISO1644DWR is a Texas Instruments digital isolator featuring five channels in a 16-pin SOIC package. It provides reinforced insulation with a rated isolation voltage of 5000 Vrms. The device supports data rates up to 50 Mb/s and operates within a supply voltage range of 2.25 V to 5.5 V. Key electrical parameters include a propagation delay of 60 ns, pulse width distortion of 60 ns, and power dissipation of 96 mW. It functions across an industrial temperature range from -40°C to +125°C.

Feature Summary

• Hot-swappable bidirectional I2C interface support
• Robust electromagnetic compatibility performance
• Reinforced dual-channel isolation architecture

Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power metering applications

Procurement Notes

Verify the specific suffix DWR corresponds to the SOIC-16 package and tape-and-reel shipping configuration. Confirm RoHS compliance status through official manufacturer documentation. Ensure design-in approval for reinforced isolation requirements matches application safety standards. Check for moisture sensitivity level ratings prior to surface mount assembly processes.

Selection Notes

Select this component when bidirectional I2C communication requires hot-swap capability alongside robust EMC immunity. The five-channel configuration suits applications needing multiple isolated signals within a single package. Compare against ISO1643 variants if different channel counts or unidirectional logic are required. Validate that the 50 Mb/s data rate meets system timing constraints.

Part Context

Part of the ISO164x family designed for high-reliability isolated interfaces. Combines Texas Instruments silicon dioxide isolation technology with integrated logic features. Targets demanding environments requiring certified isolation barriers for safety-critical communications.

Replacement Considerations

ISO1643DWR offers similar specifications but may differ in channel count or specific EMC testing results. Verify pinout compatibility and functional equivalence before substitution.