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Product InformationFeatures
Description
The UCC39002 is an advanced, high performance and low cost loadshare 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 need to be paralleled. The BiCMOS UCC39002 is based on the automatic master/slave architecture of the UC3902 and UC3907 load share controllers. It 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, RSHUNT, can be placed in either the GND return path or in the positive output rail of the power supply. The functionality of the UCC29002/1 differs slightly compared to the UCC39002. The UCC39002 will force the maximum adjustment range at start up to quickly engage load sharing; the UCC29002/1 ADJ amplifier will operate in a linear mode during start up, resulting in a more gradual load sharing at turn on. During transient conditions while adding or removing power supplies, the UCC39002 protects the system by keeping the load share bus disconnected from the remaining supplies. By disabling the adjust function in case a short of the load share bus occurs to either GND or the supply rail, it also provides protection for the system against erroneous output voltage adjustment. The UCC39002 also meets Intel’s SSI (Server System Infrastructure) loadshare specifications of a single-line load share bus and scalable load share voltage for any level of output currents. The UCC39002 family is offered in 8-pin MSOP (DGK), SOIC (D), and PDIP (P) packages. |
| Price | Packaging | CAD Design Tools | Samples | ||||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| UCC39002D | ACTIVE | 0 to 70 | 1.10 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | |||
| UCC39002DG4 | ACTIVE | 0 to 70 | 1.10 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | |||
| UCC39002DGK | ACTIVE | 0 to 70 | 1.30 | 1ku | MSOP (DGK) | 8 | View | 80 | TUBE | Purchase Samples | ||
| UCC39002DGKG4 | ACTIVE | 0 to 70 | 1.30 | 1ku | MSOP (DGK) | 8 | View | 80 | TUBE | Purchase Samples | ||
| UCC39002DGKR | ACTIVE | 0 to 70 | 1.00 | 1ku | MSOP (DGK) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| UCC39002DGKRG4 | ACTIVE | 0 to 70 | 1.00 | 1ku | MSOP (DGK) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| UCC39002DR | ACTIVE | 0 to 70 | 1.00 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| UCC39002DRG4 | ACTIVE | 0 to 70 | 1.00 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| UCC39002P | ACTIVE | 0 to 70 | 1.30 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | |||
| UCC39002PE4 | ACTIVE | 0 to 70 | 1.30 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | |||
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
| Reported Distributor Inventory as of 9:40 AM GMT, 06 Nov 2009 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 20 WeeksUCC39002D | |||
| Americas | Newark | 300 | |
| Rochester Electronics | >1k | ||
| Asia | WPI | 330 | |
| Worldwide | DigiKey | 51 | |
| Mouser Electronics | 85 | ||
| TI Lead Time*: 20 WeeksUCC39002DG4 | |||
| Americas | Rochester Electronics | >1k | |
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 1 WeekUCC39002DGK | |||
| Americas | Rochester Electronics | >1k | |
| TI Lead Time*: 1 WeekUCC39002DGKG4 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 4 WeeksUCC39002DGKR | |||
| None Reported View Distributors | |||
| TI Lead Time*: 4 WeeksUCC39002DGKRG4 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksUCC39002DR | |||
| Americas | Rochester Electronics | >1k | |
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 20 WeeksUCC39002DRG4 | |||
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 1 WeekUCC39002P | |||
| Americas | Newark | 250 | |
| Rochester Electronics | >1k | ||
| Asia | WPI | 62 | |
| Worldwide | DigiKey | 111 | |
| TI Lead Time*: 1 WeekUCC39002PE4 | |||
| Asia | Farnell Asia | 287 | |
| Europe | Farnell | 237 | |
| Worldwide | DigiKey | Available | |
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
UCC39002D  | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| UCC39002DG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| UCC39002DGK | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC39002DGKG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC39002DGKR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC39002DGKRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UCC39002DR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| UCC39002DRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| UCC39002P | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | View | View |
| UCC39002PE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | View | View |
* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.
If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.
Most useful technical documents for UCC39002 
| Name | Part # | Company | Tool / Software Type |
| UCC39002 Evaluation Module | UCC39002EVM | Texas Instruments | Development Boards/EVMs |
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| Customers Who Evaluated This Product Also Evaluated... | |||
| Part # | Name | Product Family | Comments |
| UC3902 | Load Share Controller | POWER SUPPLY SUPPORT-LOADSHARE | TI customers also evaluated this product. |
| UC3907 | Load Share Controller | POWER SUPPLY SUPPORT-LOADSHARE | TI customers also evaluated this product. |
| UCC29002 | Advanced 8-pin Load Share Controller | POWER SUPPLY SUPPORT-LOADSHARE | TI customers also evaluated this product. |
| TL431A | Adjustable Precision Shunt Regulator | VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE | TI customers also evaluated this product. |
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