UCC2919DTR

Overview

The UCC2919DTR is a single-channel hot swap voltage controller manufactured by Texas Instruments, designed for industrial temperature applications. It operates within a supply voltage range of 3 V to 8 V and draws a typical operating supply current of 1 mA. The device is housed in a 16-pin SOIC package with a narrow body (0.154 inch width) and supports surface-mount installation. It functions across an extended temperature range from -40°C to +85°C. This component is classified under PMIC power management ICs and features humidity sensitivity requiring careful handling.

Feature Summary

• Integrates programmable soft-start, adjustable current limiting, and fault timeout protection for controlled power insertion.
• Includes automatic retry and latch-off fault mechanisms to manage system recovery after error conditions.
• Features undervoltage lockout (UVLO) to ensure stable operation during power supply transitions.

Applications

• General-purpose hot swap controller applications
• Industrial equipment power management
• Telecommunications infrastructure power distribution

Procurement Notes

Verify the specific suffix 'DTR' indicates tape-and-reel packaging when sourcing replacements. Confirm RoHS compliance status as the original UC device family has been withdrawn. Check for availability of the recommended substitute TPS24700DGKR or DGK variants. Ensure moisture sensitivity level (MSL 2) handling protocols are followed during assembly.

Selection Notes

Select this component for designs requiring precise control over inrush current and thermal shutdown without internal switches. Compare against the TPS24700 series for updated functionality if new production is required. Evaluate pin compatibility between SOIC-16 packages for potential board-level upgrades. Consider the 1 mA quiescent current for low-power standby requirements.

Part Context

The UCC2919 belongs to the legacy UC device family from Texas Instruments, which has been officially discontinued. It serves as a standalone controller for managing power insertion into backplanes or subsystems. The DTR variant specifically denotes the reel-packaged version of the standard UCC2919 controller.

Replacement Considerations

The TPS24700DGKR and TPS24700DGK are publicly confirmed substitutes for the UCC2919DTR. These newer devices offer similar hot swap control functions but may require design review for pin-to-pin compatibility and parameter differences.

FAQ

Is the UCC2919DTR currently in production?

No, the UCC2919DTR is obsolete and no longer manufactured as part of the withdrawn UC Device Family.

What package type does the UCC2919DTR use?

It uses a 16-SOIC (Small Outline Integrated Circuit) package with a narrow body width of 0.154 inches.