ISO7131CCDBQR

Overview

The ISO7131CCDBQR is a general-purpose digital isolator from Texas Instruments featuring four channels with unidirectional signal transmission. It utilizes capacitive coupling technology to provide an isolation voltage of 2500 Vrms and supports data rates up to 50 Mb/s. The device operates within a supply voltage range of 2.7 V to 5 V, drawing a typical operating current of 14 mA. It exhibits a propagation delay of 23 ns and maintains functionality across an extended temperature range from -40°C to +125°C. Packaged in a compact SSOP-16 format, it is designed for robust signal integrity in electrically noisy environments.

Feature Summary

• Capacitive coupling architecture ensures high common-mode transient immunity
• Unidirectional channel configuration simplifies circuit design
• Extended industrial temperature range supports harsh operating conditions

Applications

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

Procurement Notes

Verify the specific ordering suffix DBQR corresponds to the required reel or cut-tape packaging configuration. Confirm that the SSOP-16 package dimensions align with your PCB footprint requirements. Ensure compatibility with the intended supply voltage levels before integration. Check moisture sensitivity labeling for proper storage and handling protocols during assembly.

Selection Notes

Select this component when unidirectional isolation is sufficient for the application. Consider the 50 Mb/s data rate limit against system throughput needs. Evaluate the 2500 Vrms isolation rating against safety standards. Compare power consumption metrics if battery operation is critical. Verify thermal performance within the specified ambient temperature range.

Part Context

This part belongs to the ISO71xx series of digital isolators from Texas Instruments. These devices are designed to replace traditional optocouplers in modern designs. They offer superior performance in terms of speed, power consumption, and size. The series supports various channel configurations for diverse interface requirements.

Replacement Considerations

Direct substitutes include other ISO71xx variants with matching channel counts and pinouts. Verify equivalent isolation ratings and data speeds when cross-referencing. Ensure package compatibility for direct replacement without PCB redesign.