UCC3921N

Overview

The UCC3921N is a latchable negative floating hot swap power manager designed for complete power management and fault handling in systems requiring safe insertion and removal of live circuits. It integrates control logic for managing power sequencing and protection mechanisms.

Feature Summary

• Provides comprehensive hot swap capabilities for negative floating applications
• Integrates latchable fault handling to secure system integrity during anomalies
• Manages power sequencing and insertion/removal events safely

Applications

• Server backplane power management
• Telecommunications equipment hot swapping
• Industrial control system power distribution

Procurement Notes

Verify the manufacturer source, as Unitrode assets are managed by Texas Instruments. Confirm the specific suffix 'N' corresponds to the required package type. Check current availability status as legacy components may have limited supply chains or require alternative sourcing strategies from authorized distributors.

Selection Notes

Select this component for applications requiring negative rail hot swap protection. Ensure the system architecture supports negative floating configurations. Verify that the integrated latchable fault features align with the safety requirements of the target application environment.

Part Context

Part of the UCC3921 family developed by Unitrode, now under Texas Instruments. This series addresses the need for robust power management in high-reliability environments where continuous operation and safe maintenance are critical.

Replacement Considerations

Consult Texas Instruments documentation for direct equivalents within the UCC39xx series. Verify pin compatibility and electrical specifications before substituting with other hot swap controllers.