UCC2913DTR

Overview

The UCC2913DTR is a single-channel hot-swap voltage controller manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It operates within a supply voltage range of 8.5 V to 10.5 V and supports input voltages up to -48 V. The device features adjustable current limiting and functions across an industrial temperature range of -40°C to +85°C. It draws a typical operating supply current of 20 mA and includes built-in UVLO for reliable power management in telecommunications and industrial systems.

Feature Summary

• Provides integrated circuit protection through programmable breaker, current limit, and fault timeout functionalities.
• Supports automatic retry mechanisms to restore system operation following transient fault conditions.
• Utilizes negative floating architecture suitable for high-side switching applications.

Applications

• -48V telecommunications equipment
• Industrial backplane power distribution
• Hot-swap server blade insertion

Procurement Notes

Verify the manufacturer designation carefully, as Unitrode was acquired by Texas Instruments. Confirm the specific suffix 'DTR' indicates the SOIC-8 tape-and-reel packaging variant. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.

Selection Notes

Select this controller for applications requiring precise thermal and electrical protection during board insertion. The single-channel design simplifies layout compared to multi-channel alternatives. Consider the 8-SOIC package constraints for thermal dissipation. Verify that the adjustable current limit settings align with the downstream load requirements and PCB trace capabilities.

Part Context

This component belongs to the UCC2913 family of hot-swap controllers designed for robust power management. It serves as a critical interface between the main power bus and sensitive loads, preventing damage from inrush currents or short circuits. The device integrates control logic with external FET drive capabilities to manage power sequencing safely.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.