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Product InformationFeatures
Description
The UC3879 controls a bridge power stage by phase shifting the switching of one half-bridge with respect to the other. This allows constant frequency pulse width modulation in combination with resonant, zero-voltage switching for high efficiency performance. The UC3879 can be configured to provide control in either voltage mode or current mode operation, with overcurrent shutdown for fast fault protection. Independently programmable time delays provide dead-time at the turn-on of each output stage, allowing time for each resonant switching interval. With the oscillator capable of operating in excess of 600 kHz, overall output switching frequencies to 300 kHz are practical. In addition to the standard free running mode, with the CLKSYNC pin, the user may configure the UC3879 to accept an external clock synchronization signal. View All Description in Datasheet |
| Price | Packaging | CAD Design Tools | Samples | |||||||
| Device | Status | Temp (oC) | Replaced By | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| UC2879DW | ACTIVE | -40 to 85 | 4.45 | 1ku | SOIC (DW) | 20 | View | 25 | TUBE | ||||
| UC2879DWG4 | ACTIVE | -40 to 85 | 4.45 | 1ku | SOIC (DW) | 20 | View | 25 | TUBE | ||||
| UC2879DWTR | ACTIVE | -40 to 85 | 4.15 | 1ku | SOIC (DW) | 20 | View | 2000 | LARGE T&R | Purchase Samples | |||
| UC2879DWTRG4 | ACTIVE | -40 to 85 | 4.15 | 1ku | SOIC (DW) | 20 | View | 2000 | LARGE T&R | Purchase Samples | |||
| UC2879J | OBSOLETE | -40 to 85 | UCC1895J | CDIP (J) | 20 | Replaced by UCC1895J | |||||
| UC2879N | ACTIVE | -40 to 85 | 4.45 | 1ku | PDIP (N) | 20 | View | 20 | TUBE | ||||
| UC2879NG4 | ACTIVE | -40 to 85 | 4.45 | 1ku | PDIP (N) | 20 | View | 20 | 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 9:54 AM GMT, 26 Nov 2009 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 20 WeeksUC2879DW | |||
| Americas | Arrow | 205 | |
| Rochester Electronics | >1k | ||
| Asia | WPI | 70 | |
| Europe | Avnet-SILICA | 8 | |
| Worldwide | DigiKey | 79 | |
| Mouser Electronics | 75 | ||
| TI Lead Time*: 20 WeeksUC2879DWG4 | |||
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 20 WeeksUC2879DWTR | |||
| Americas | Rochester Electronics | >1k | |
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 20 WeeksUC2879DWTRG4 | |||
| Worldwide | DigiKey | Available | |
| TI Lead Time*: 14 WeeksUC2879N | |||
| Americas | Rochester Electronics | 71 | |
| Asia | WPI | 69 | |
| Europe | Avnet-SILICA | 151 | |
| Compel | 30 | ||
| Worldwide | DigiKey | 88 | |
| Mouser Electronics | 73 | ||
| TI Lead Time*: 14 WeeksUC2879NG4 | |||
| Asia | Farnell Asia | 60 | |
| Europe | Farnell | 55 | |
| 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 |
UC2879DW  | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UC2879DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UC2879DWTR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UC2879DWTRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| UC2879N | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | View | View |
| UC2879NG4 | Green (RoHS & no Sb/Br) | 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 UC2879 
| Name | Part # | Company | Tool / Software Type |
| UCC3895 Evaluation Module | UCC3895EVM-001 | Texas Instruments | Development Boards/EVMs |
| Part # | Name | Product Family | Comments |
| UCC2895 | BiCMOS Advanced Phase Shift Resonant Controller | AC/DC AND DC/DC POWER SUPPLIES - PWM POWER SUPPLY CONTROLLERS | This device has SIMILAR FUNCTIONALITY, newer device with better features |
| Customers Who Evaluated This Product Also Evaluated... | |||
| UC2875 | Phase Shift Resonant Controller | AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS | TI customers also evaluated this product. |
| UCC2895 | BiCMOS Advanced Phase Shift Resonant Controller | AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS | TI customers also evaluated this product. |
| UC3876 | Phase Shift Resonant Controller | AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS | TI customers also evaluated this product. |
| UCC3895 | BiCMOS Advanced Phase Shift PWM Controller | AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS | TI customers also evaluated this product. |
| UC3879 | Phase Shift Resonant Controller | AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS | TI customers also evaluated this product. |
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