UCC3919DTRG4

Overview

The UCC3919DTRG4 is a hot swap controller manufactured by Texas Instruments, designed for general-purpose power management applications. It operates within a supply voltage range of 3V to 8V and features a single channel configuration. The device is housed in a 16-SOIC package with a width of 0.154 inches (3.90mm). It supports surface mount installation and functions reliably across an operating temperature range of -40°C to 85°C. The component draws a supply current of 1 mA and includes programmable protection features such as automatic retry, circuit breaker, current limiting, fault timeout, and latch-up fault handling.

Feature Summary

• Integrates comprehensive hot swap control capabilities including current limiting and fault protection mechanisms
• Supports automatic retry and latch-up fault handling for robust system recovery
• Operates on low supply voltage ranges suitable for various power management architectures

Applications

• General purpose hot swap power management
• System board insertion protection
• Power distribution unit input stages

Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and lead-free status. Confirm the 16-SOIC package dimensions match your PCB footprint requirements. Check for obsolescence notices or end-of-life notifications from Texas Instruments before finalizing procurement plans. Ensure the supply voltage range aligns with your system's available rails.

Selection Notes

Select this component when a single-channel hot swap solution with integrated protection is required. Consider the 16-SOIC package size for space-constrained designs. Evaluate the 3V to 8V operating range against your system's power availability. Compare programmable feature sets against alternative controllers if specific timing or threshold adjustments are needed beyond standard configurations.

Part Context

This part belongs to the UCC2919/UCC3919 family of hot swap controllers from Texas Instruments. These devices are designed to manage the inrush current and protect systems during board insertion. The UCC3919 variant typically shares functional similarities with the UCC2919 but may differ in specific electrical characteristics or environmental ratings. They serve as critical components in ensuring safe power application to electronic modules.

Replacement Considerations

The TPS24700DGKR is listed as a similar replacement option by distributors. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Ensure the replacement meets the same thermal and voltage requirements.