UCC3912DPTR

Overview

The UCC3912DPTR is a programmable hot swap power manager manufactured by Texas Instruments. It features an internal switch capable of delivering up to 4A output current and operates within a supply voltage range of 3V to 8V. The device supports adjustable current limiting and fault timeout parameters, providing comprehensive protection for system insertion events. Designed for surface-mount applications, it utilizes a 24-pin PowerTSSOP package with a width of 4.40mm. The component functions as a general-purpose controller suitable for managing power delivery during board insertion.

Feature Summary

• Integrates an internal high-current switch for direct load control without external pass transistors
• Provides programmable current limit and fault timeout settings for customizable protection profiles
• Includes lockout fault detection mechanisms to prevent damage during abnormal operating conditions

Applications

• General-purpose hot swap power management in industrial systems
• Controlled insertion and removal of circuit boards in backplane architectures
• Protection of sensitive electronics against surge currents during power-up sequences

Procurement Notes

Verify the specific suffix and package variant when sourcing replacements. Confirm that the replacement part matches the original pinout and thermal characteristics. Ensure the substitute component maintains compatibility with the existing design constraints regarding voltage ranges and current capabilities. Cross-reference official manufacturer documentation to validate functional equivalence before implementation.

Selection Notes

Select this component for applications requiring integrated switching capability within a low-voltage environment. The programmable nature allows adaptation to various load requirements without changing hardware topology. Consider the thermal performance of the PowerTSSOP package for density-constrained designs. Evaluate the need for precise fault timing adjustments relative to system recovery requirements.

Part Context

This device belongs to the UCC3912 family of hot swap controllers designed by Texas Instruments. It serves as a specialized power management solution for managing the risks associated with live board insertion. The family focuses on providing robust protection features while simplifying the bill of materials through internal integration of critical switching elements.

Replacement Considerations

UCC3912PWPTR