ISO7140FCCDBQ

Overview

The ISO7140FCCDBQ is a quad-channel digital isolator from Texas Instruments, housed in a 16-pin SSOP package. It features unidirectional signal transmission with a data rate of 50 Mb/s and a propagation delay of 23 ns. The device operates on a supply voltage between 2.7 V and 5 V, drawing 15.6 mA of quiescent current. It provides 2500 Vrms isolation via capacitive coupling and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Integrates four independent unidirectional channels for signal isolation
• Utilizes capacitive coupling technology for electrical isolation
• Incorporates integrated noise filtering to suppress high-frequency transients

Applications

• Industrial automation control systems
• Medical equipment signal interfaces
• Power electronics gate drive circuits

Procurement Notes

Verify the specific suffix 'FCC' against the manufacturer's official datasheet to confirm pinout compatibility and insulation ratings. Ensure the SSOP-16 package dimensions match the target PCB footprint. Confirm RoHS compliance status through the latest regulatory documentation provided by Texas Instruments before finalizing procurement.

Selection Notes

Select this component when four isolated bidirectional or unidirectional paths are required in a compact form factor. The low power consumption and small footprint make it suitable for space-constrained designs. Verify that the 50 Mb/s data rate meets the system timing requirements and that the 2500 Vrms isolation level satisfies the safety standards of the application environment.

Part Context

This part belongs to the ISO7140 family of small-footprint, low-power digital isolators. It serves as a robust interface solution for separating noisy digital grounds while maintaining signal integrity. The series is designed to replace bulky optocouplers in modern electronic systems requiring high reliability and miniaturization.

Replacement Considerations

The ISO7140CCDBQ is a documented variant within the same family offering similar functionality. Verify if the specific insulation certification differences between the 'C' and 'F' suffixes impact the design requirements.