ISO7041DBQ

Overview

The ISO7041DBQ is an ultra-low power, four-channel digital isolator designed for CMOS and LVCMOS digital I/O isolation. It features unidirectional signal transmission with a data rate of 2 Mb/s. The device operates within a supply voltage range of 2.25 V to 3.6 V and draws a maximum operating supply current of 115.7 µA. It provides an insulation voltage of 3000 Vrms using capacitive coupling technology. The propagation delay is specified at 140 ns, and the component supports operation down to a minimum temperature of -55°C. It is housed in an SSOP-16 package.

Feature Summary

• Ultra-low power consumption suitable for thermally constrained designs
• Four independent channels for multi-line isolation
• Capacitive coupling architecture for robust signal integrity
• Compliance with UL1577 safety standards

Applications

• Isolation of CMOS or LVCMOS digital I/O interfaces
• Power and heat-limited system designs
• Industrial communication bus isolation

Procurement Notes

Verify the specific suffix 'DBQ' corresponds to the SSOP-16 package and unidirectional configuration. Confirm ATEX/IECEx certification requirements if used in hazardous areas. Ensure the design accounts for the 3000 Vrms isolation rating and 2.25V–3.6V supply range. Check for RoHS compliance status in the official datasheet before finalizing procurement specifications.

Selection Notes

Select this component when low static and dynamic power consumption is critical. It is appropriate for applications requiring moderate data rates up to 2 Mb/s. Consider the SSOP-16 footprint for PCB layout constraints. Verify that the unidirectional nature meets the signal flow requirements of the target interface.

Part Context

This part belongs to the ISO7041 series of digital isolators from Texas Instruments. It utilizes edge-modulation technology to achieve low power dissipation while maintaining high reliability. The series is engineered to replace traditional optocouplers in systems where size, speed, and power efficiency are prioritized over higher voltage ratings.

Replacement Considerations

Check for ISO7041 variants with different suffixes for alternative packaging or temperature grades. Ensure substitute parts maintain the same 4-channel count and unidirectional polarity.