UCC2919PWG4

Overview

The UCC2919PWG4 is a single-channel hot-swap voltage controller manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 8 V and draws a typical operating current of 1 mA. Designed for industrial applications, the device functions reliably across an extended temperature range from -40°C to +85°C. The component is housed in a 16-pin TSSOP surface-mount package with a width of 4.40 mm. It features programmable protection characteristics including auto-retry, circuit breaker functionality, current limiting, fault timeout, and latch-off fault handling.

Feature Summary

• Integrates comprehensive protection mechanisms such as current limiting, fault timeout, and latch-off capabilities for robust system management.
• Supports automatic retry sequences following fault conditions to enhance system availability without manual intervention.
• Operates on a low quiescent current profile suitable for power-sensitive industrial environments.

Applications

• Industrial equipment requiring safe insertion and removal of circuit boards
• Telecommunications infrastructure power distribution systems
• General-purpose hot-swap backplane architectures

Procurement Notes

Verify end-of-life status before procurement planning. Confirm that the G4 suffix indicates lead-free packaging compliant with RoHS standards. Ensure the 16-TSSOP footprint matches the target PCB layout. Check for moisture sensitivity level requirements during storage and reflow processes. Validate that the 3 V to 8 V input range aligns with the system power rails.

Selection Notes

Select this component when a single-channel solution with integrated protection logic is required for hot-swap applications. The wide operating temperature range supports industrial deployment. Verify that the external MOSFET drive capability meets the load requirements. Consider the TSSOP package constraints for thermal dissipation and board space. Ensure compatibility with the system's fault detection thresholds.

Part Context

This part belongs to the UCC2919 series of hot-swap controllers. It serves as a specialized power management IC designed to protect circuits during live insertion. The device simplifies design by integrating control logic that would otherwise require discrete components. It is categorized under PMIC solutions for managing power delivery in sensitive electronic systems.

Replacement Considerations

The TPS24700DGK is identified as a similar replacement option. Verify pinout compatibility and electrical parameter alignment before substitution. Review datasheet differences regarding voltage ranges and protection features. Assess package variations if transitioning between different housing types.

FAQ

Does the UCC2919PWG4 include an internal switch?

No, the UCC2919PWG4 does not contain an internal switch. It requires an external MOSFET to handle the load current.

What is the humidity sensitivity level for this component?

The component has a Moisture Sensitivity Level (MSL) of 2, which allows for one year of shelf life under standard conditions.