UCC39002P

Power Management - Specialized Overview

The UCC39002P is an advanced load-share controller from Texas Instruments, designed for parallel power supply systems. It operates within a supply voltage range of 4.375V to 14.25V and draws a supply current of 2.5mA. The device provides an adjustable output voltage between 995mV and 1.005V with a maximum of 1.005V. It supports high-side or low-side current sensing and functions in the commercial temperature range of 0°C to 70°C. Packaged in an 8-pin PDIP, it enables precise current sharing among modules.

Power Management - Specialized Feature Summary

• Enables high-accuracy current sharing between parallel power modules using an automatic leader/follower architecture
• Supports flexible current sensing configurations in either the ground return path or positive output rail
• Provides full-scale adjustability and compliance with Intel SSI load-share specifications

Power Management - Specialized Applications

• N+1 redundant server power systems
• Workstation distributed power architectures
• Telecom high-current applications requiring paralleled DC-to-DC modules

Power Management - Specialized Procurement Notes

Verify component authenticity as this part is obsolete. Confirm package integrity upon receipt. Check datasheet revisions for any design changes. Ensure compatibility with existing system thermal requirements. Validate pinout alignment before PCB integration.

Power Management - Specialized Selection Notes

Select this controller for applications requiring precise load balancing without complex external circuitry. Consider the PDIP package for through-hole prototyping. Evaluate thermal management needs within the specified operating range. Verify that the input voltage range matches the system supply rails.

Power Management - Specialized Part Context

This component belongs to the UCC39002 family of load-share controllers manufactured by Texas Instruments. It succeeds earlier UC3902 and UC3907 designs, offering improved accuracy and lower offset. The device integrates essential functions for parallel operation, reducing system complexity compared to discrete solutions.

Power Management - Specialized Replacement Considerations

The UCC39002DR is a recommended replacement with identical functionality but in an SOIC package. Verify footprint compatibility when transitioning from DIP to surface mount. Ensure board layout adjustments accommodate the different package dimensions.