ISO7730DBQR

Overview

The ISO7730DBQR is a high-performance, triple-channel digital isolator from Texas Instruments featuring capacitive coupling technology. It provides unidirectional signal transmission with a data rate of 100 Mb/s and a propagation delay of 11 ns. The device operates within a supply voltage range of 2.25 V to 5.5 V and draws a typical operating current of 17.5 mA. It offers reinforced isolation ratings of 3000 VRMS per UL 1577 standards and supports an extended operating temperature range from -55°C to +125°C. Packaged in a 16-pin SSOP, it ensures robust electromagnetic compatibility.

Feature Summary

• Provides three independent unidirectional channels for signal isolation
• Features capacitive coupling technology for high-speed data transmission
• Offers reinforced insulation ratings compliant with UL 1577 standards
• Designed for robust electromagnetic compatibility performance

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety isolation
• Power metering applications with high-voltage separation needs
• Communication interfaces demanding high common-mode transient immunity

Procurement Notes

Verify the specific suffix DBQR confirms the SSOP-16 package and reel packaging configuration. Ensure the component meets RoHS compliance requirements for your assembly process. Confirm that the 3000 VRMS reinforced isolation rating aligns with your system's safety certification standards. Check humidity sensitivity levels for proper storage and reflow soldering profiles.

Selection Notes

Select this component when three unidirectional isolated channels are required within a single package. Consider the 100 Mb/s data rate and 85 kV/µs common-mode transient immunity for noisy environments. Evaluate the 17.5 mA supply current against power budget constraints. Compare the 3000 VRMS rating against higher isolation requirements found in other series variants.

Part Context

This part belongs to the ISO773x family of triple-channel digital isolators. While sharing similar functionality, variations exist in isolation ratings and package types across the series. The DBQR suffix specifically denotes the 16-lead SSOP package with tape-and-reel delivery. This distinguishes it from DW packages which may offer higher isolation ratings.

Replacement Considerations

Direct replacements within the same family include ISO7730DW or ISO7730DR depending on package preference. Verify pinout compatibility and isolation voltage ratings before substitution. Other manufacturers' parts require careful evaluation of CMTI and propagation delay specifications.