DS1874T+

Overview

The DS1874T+ is a laser driver controller designed for SFP+ applications, featuring a digital LDD interface. It operates within a supply voltage range of 2.85 V to 3.9 V and is housed in a 28-TQFN (5x5 mm) package. The component functions as a dedicated laser driver IC with one channel, supporting surface-mount installation. It is classified under Laser Drivers and is part of the DS1874 series.

Feature Summary

• Integrates a digital LDD interface for simplified control in SFP+ modules
• Provides efficient power delivery control for compact battery-powered systems
• Supports input voltages from 2.97 V to 5.5 V for flexible power management

Applications

• SFP+ optical transceiver modules
• Battery-powered communication systems
• Power sequencing and voltage regulation circuits

Procurement Notes

Verify component authenticity through authorized Analog Devices or Maxim Integrated distributors. Confirm RoHS compliance status and check for End-of-Life (EOL) notifications, as availability may be limited. Ensure the specific suffix matches the required packaging format for your assembly process.

Selection Notes

Select this component for designs requiring integrated laser driving and power management in small form factors. Verify that the operating voltage range aligns with the system's power rails. Consider the TQFN package constraints for thermal management and PCB layout requirements during the design phase.

Part Context

This device belongs to the Maxim Integrated portfolio, now part of Analog Devices Inc. It is specifically engineered for high-speed optical networking applications. The DS1874 series focuses on combining laser control with power sequencing to reduce component count in SFP+ cages.

Replacement Considerations

Check for direct pin-to-pin replacements within the DS1874 family. Consult official datasheets for any functional equivalents from Analog Devices that maintain the same digital LDD interface compatibility.