ISO7141CCDBQR

Overview

The ISO7141CCDBQR is a quad-channel digital isolator from Texas Instruments, housed in an SSOP-16 package. It provides unidirectional signal isolation with three forward channels and one reverse channel. The device operates on a supply voltage ranging from 2.7 V to 5 V, drawing a typical operating current of 14 mA. It supports data rates up to 50 Mb/s with a propagation delay of 23 ns. Key electrical specifications include an insulation voltage of 2500 Vrms and a power dissipation of 150 mW. The component functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides functional isolation for digital signals using capacitive coupling technology.
• Features a small-footprint design suitable for space-constrained applications.
• Supports low-power operation with optimized current consumption.
• Ensures signal integrity with high common-mode transient immunity.

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reliable signal separation
• Power metering circuits for energy monitoring

Procurement Notes

Verify the specific suffix DBQR indicates the reel packaging format when ordering. Confirm that the ISO7141CC variant meets the required insulation voltage ratings for your safety standards. Ensure compatibility with the target PCB footprint for the SSOP-16 package. Check for moisture sensitivity levels if storage conditions are not controlled. Validate that the 2500 Vrms rating aligns with system isolation requirements.

Selection Notes

Select this component when a balance between low power consumption and moderate data speed is required. The 3/1 channel configuration is ideal for applications needing multiple outputs and a single return path. Consider the SSOP-16 package for easier manual assembly compared to smaller options. Evaluate the 2500 Vrms insulation level against higher voltage needs found in other series like ISO7741.

Part Context

This part belongs to the ISO71xxCC family of small-footprint, low-power digital isolators. It complements higher-performance variants by offering a cost-effective solution for basic isolation tasks. The CC designation typically refers to specific insulation and reliability characteristics defined by Texas Instruments for general-purpose industrial use.

Replacement Considerations

Direct substitutes may include other ISO7141 variants with different packaging or temperature grades. Cross-reference with ISO7141CDBQ for tape-and-reel alternatives. Verify pinout compatibility before replacing with ISO7741 or ISO6541 series devices due to potential performance differences.