UCC29002DGKR

Power Management - Specialized Overview

The UCC29002DGKR is an advanced 8-pin load-share controller from Texas Instruments, designed for parallel power supply applications. It operates within a supply voltage range of 4.375 V to 14.25 V and features a working supply current of 2.5 mA. The device provides an output current capability of 1.5 mA with an adjustable output voltage range spanning from 995 mV to 1.005 V. It supports high-side or low-side current sensing and functions within a temperature range of -40°C to +105°C. Packaged in a VSSOP-8 surface-mount format, it facilitates precise current sharing among multiple DC-to-DC modules.

Power Management - Specialized Feature Summary

• Enables high-accuracy current sharing between parallel power supplies with less than 1% error at full load using a low-offset current-sense amplifier.
• Supports flexible current sensing configurations in either the ground return path or the positive output rail via a single-wire load-share bus.
• Implements automatic leader/follower architecture to manage module redundancy and system stability.

Power Management - Specialized Applications

• Server and workstation distributed power systems
• Telecommunications power infrastructure
• N+1 redundant power supply architectures

Power Management - Specialized Procurement Notes

Verify the specific suffix 'DGKR' corresponds to the VSSOP-8 package and reel packaging configuration. Confirm that the operating temperature range meets the -40°C to +105°C requirement for the target environment. Ensure compatibility with the Intel SSI load-share specification if applicable to the design.

Power Management - Specialized Selection Notes

Select this component when designing systems requiring precise current balancing across multiple independent power sources. It is suitable for applications where space constraints favor the VSSOP-8 package over larger DIP options. Consider the 4.375 V minimum input voltage when selecting input capacitors and supply rails.

Power Management - Specialized Part Context

This part belongs to the UCC29002 family of advanced load-share controllers. It serves as a modern successor to legacy UC3902 and UC3907 devices, offering improved accuracy and lower offset characteristics. The DGKR variant specifically denotes the tape-and-reel packaging option for automated assembly processes.

Power Management - Specialized Replacement Considerations

Direct replacements include other variants within the UCC29002 family such as UCC29002DR (SOIC-8) or UCC29002DGK (tube). For legacy designs, the UC2902D may serve as a functional alternative, though pinout and performance specifications differ.