UCC3919DTR

Overview

The UCC3919DTR is a Hot Swap Controller manufactured by Texas Instruments, designed for general-purpose power management applications. It operates within a supply voltage range of 3 V to 8 V and supports single-channel configuration in a 16-SOIC package. The device integrates protection features including overvoltage, undervoltage, and current limiting to manage hot insertion events safely.

Feature Summary

• Integrates comprehensive protection mechanisms for safe hot insertion and removal of live circuits
• Supports controlled ramp-up of output voltage to limit inrush current during startup
• Provides precise monitoring of input voltage and load current for system reliability

Applications

• Hot swap modules in telecommunications equipment
• Peripheral card insertion systems in industrial computing
• General-purpose power distribution units requiring safe insertion

Procurement Notes

Verify the specific suffix 'DTR' indicates the tape-and-reel packaging variant when ordering. Confirm that the component meets RoHS compliance requirements for your target market. Ensure the 16-SOIC footprint matches your PCB layout constraints. Check for any lead-free manufacturing updates from Texas Instruments prior to final procurement approval.

Selection Notes

Select this controller when designing systems requiring robust protection against hot insertion faults. The 3 V to 8 V operating range suits low-voltage DC bus architectures. Consider the 16-SOIC package size for space-constrained designs. Evaluate thermal performance based on expected fault currents and ambient conditions.

Part Context

This component belongs to the Hot Swap Controllers category within Texas Instruments' Power Management ICs portfolio. It is distinct from switching regulators and AC/DC converters, focusing specifically on managing power delivery during dynamic connection events. The DTR suffix denotes surface-mount reel packaging.