UCC2919D

Overview

The UCC2919D is a single-channel hot-swap controller manufactured by Texas Instruments, designed for industrial applications within a temperature range of -40°C to +85°C. It operates on a supply voltage between 3V and 8V with a typical operating current of 1 mA. The device is housed in a 16-pin SOIC package (SOIC-Narrow) and supports surface-mount installation. Key electrical characteristics include programmable features such as auto-retry, circuit breaker functionality, adjustable current limiting, fault timeout settings, and latching fault protection.

Feature Summary

• Integrates comprehensive protection mechanisms including adjustable current limiting, fault timeout, and auto-retry capabilities for robust system management.
• Features a low quiescent operating current of 1 mA to minimize power consumption during standby or idle states.
• Supports negative floating input configurations suitable for industrial environments requiring high-side MOSFET control.

Applications

• Industrial backplane power distribution systems
• Telecommunications equipment power modules
• Server and storage array hot-plug interfaces

Procurement Notes

Verify the specific suffix designation against official datasheets to confirm package type and temperature grade. Confirm RoHS compliance status through manufacturer documentation. Check for end-of-life notifications or obsolescence warnings prior to finalizing procurement plans. Ensure compatibility with existing PCB footprints for the 16-SOIC package.

Selection Notes

Select this component when designing systems requiring precise control over inrush current and fault handling during hot-swap operations. Consider the 16-pin SOIC footprint for layout constraints. Evaluate the need for programmable delay and current limit settings against specific load requirements. Verify that the 3V to 8V supply range aligns with the system's available rail voltages.

Part Context

The UCC2919 belongs to Texas Instruments' family of hot-swap controllers, which manage power insertion into live circuits without causing voltage droops or damage. These devices are critical for maintaining system availability in modular architectures where components must be replaced while powered. The series emphasizes reliability and ease of integration for high-density power designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Texas Instruments documentation for potential legacy replacements or pin-compatible alternatives if this specific model is discontinued.

FAQ

What is the operating supply voltage range for the UCC2919D?

The UCC2919D operates within a supply voltage range of 3V to 8V.

Does the UCC2919D support automatic retry after a fault event?

Yes, the device includes programmable auto-retry functionality to automatically attempt recovery after a fault condition clears.