The UCC39002 device is an advanced, high-performance, and low-cost load share controller that provides all necessary functions to parallel multiple independent power supplies or DC-to-DC modules. Targeted for high-reliability applications in server, workstation, telecom, and other distributed power systems, the controller is suitable for N+1 redundant systems or high current applications where off-the-shelf power supplies must be paralleled.

The BiCMOS UCC39002 is based on the automatic master or slave architecture of the UC3902 and UC3907 load share controllers. The device provides better than 1% current share error between modules at full load by using a very low offset post-package-trimmed current sense amplifier and a high-gain negative feedback loop. And with the amplifier’s common-mode range of 0 V to the supply rail, the current sense resistor, R_SHUNT, can be placed in either the GND return path or in the positive output rail of the power supply.

• High Accuracy, Better Than 1% Current Share Error at Full Load
• High-Side or Low-Side (GND Reference) Current- Sense Capability
• Ultra-Low Offset Current Sense Amplifier
• Single Wire Load Share Bus
• Full Scale Adjustability
• Intel? SSI Load Share Specification Compliant
• Disconnect from Load Share Bus at Stand-By
• Load Share Bus Protection Against Shorts to GND or to the Supply Rail
• 8-Pin MSOP Package Minimizes Space
• Lead-Free Assembly

• Topology
• Flyback, Buck
• Supply voltage (Max) (V)
• 13.5
• Features
• Load Sharing, high-side or Low-side current sense, 1% accuracy, Intel¨ SSI load share specification compliant
• Operating temperature range (C)
• 0 to 70

UCC39002的完整型号有：UCC39002D、UCC39002DGK、UCC39002DGKR、UCC39002DR、UCC39002P，以下是这些产品的关键参数及官网采购报价：

UCC39002D，工作温度：0 to 70，封装：SOIC (D)-8，包装数量MPQ：75个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网UCC39002D的批量USD价格：1.207（1000+）

UCC39002DGK，工作温度：0 to 70，封装：VSSOP (DGK)-8，包装数量MPQ：80个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAUAG，TI官网UCC39002DGK的批量USD价格：1.207（1000+）

UCC39002DGKR，工作温度：0 to 70，封装：VSSOP (DGK)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAUAG，TI官网UCC39002DGKR的批量USD价格：1.006（1000+）

UCC39002DR，工作温度：0 to 70，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网UCC39002DR的批量USD价格：1.006（1000+）

UCC39002P，工作温度：0 to 70，封装：PDIP (P)-8，包装数量MPQ：50个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：NIPDAU，TI官网UCC39002P的批量USD价格：1.358（1000+）

UCC39002EVM — UCC39002 评估模块

The UCC39002 is an advanced, high-performance load-share controller that provides all the necessary functions to parallel multiple independent power supplies or dc-to-dc modules. This load-share circuit is based upon the automatic master/slave architecture utilized in the UC3902 and UC3907 (...)

MathCAD 2000 for Designing with UCC29002 Load Share Controller (Rev. A)

The following design is a 60W Flyback which uses the UCC3809 and the UCC39002. It creates a 12V@10A output by employing dual 12V@5A. The system functions in the continuous conduction mode.