ISO6742DWR

Overview

The ISO6742DWR is a general-purpose reinforced quad-channel digital isolator from Texas Instruments, housed in a 16-SOIC package. It supports unidirectional signal transmission with a data rate of 50 Mbps and operates on supply voltages ranging from 1.71 V to 5.5 V. The device features a typical common-mode transient immunity (CMTI) of ±150 kV/µs and a maximum propagation delay of 18 ns. It provides an isolation rating of up to 5000 VRMS and withstands surge capabilities up to 10 kV. Operating temperatures range from -40°C to +125°C.

Feature Summary

• Reinforced insulation rating supporting high-voltage isolation requirements
• High common-mode transient immunity for robust noise rejection
• Quad-channel configuration enabling multi-signal separation
• Wide operating temperature range for industrial environments

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety isolation
• Power metering applications with high voltage interfaces
• Inverters and motor drives for control signal isolation

Procurement Notes

Verify the specific suffix DWR indicates the SOIC-16 package and tape-and-reel shipping method. Confirm RoHS compliance status through official manufacturer documentation before integration. Ensure ESD handling protocols are followed during assembly due to moisture sensitivity classification. Cross-reference the exact part number against the latest datasheet revision to confirm pinout and electrical characteristics match design requirements.

Selection Notes

Select this component when reinforced isolation ratings and high CMTI are critical for system safety and signal integrity. The 50 Mbps data rate suits moderate-speed digital communication needs. Consider the 16-SOIC footprint for PCB layout constraints. Evaluate power consumption at 10.2 mA against system energy budgets. Verify that the unidirectional channel architecture aligns with the signal flow direction in the circuit design.

Part Context

The ISO6742 belongs to the ISO674x family of general-purpose digital isolators designed for robust EMC performance. It utilizes capacitive coupling technology to provide electrical isolation between circuits. This series is engineered to replace traditional optocouplers in many applications, offering higher reliability and lower power consumption while maintaining strict safety standards for industrial and medical use cases.

Replacement Considerations

Check for ISO6742 variants with different packaging or automotive qualifications if environmental conditions differ. Verify compatibility with existing board layouts when substituting similar quad-channel isolators. Ensure replacement parts maintain the same 5000 VRMS isolation rating and ±150 kV/µs CMTI specifications.