Datasheet Texas Instruments UCC28950PWR
| Manufacturer | Texas Instruments |
| Series | UCC28950 |
| Part Number | UCC28950PWR |
Green Phase-Shifted Full-Bridge Controller with Synchronous Rectification 24-TSSOP -40 to 125
Datasheets
UCC28950 Green Phase-Shifted Full-Bridge Controller With Synchronous Rectification datasheet
PDF, 2.7 Mb, Revision: D, File published: Nov 4, 2016
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Prices
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
Packaging
| Pin | 24 |
| Package Type | PW |
| Industry STD Term | TSSOP |
| JEDEC Code | R-PDSO-G |
| Package QTY | 2000 |
| Carrier | LARGE T&R |
| Device Marking | UCC28950 |
| Width (mm) | 4.4 |
| Length (mm) | 7.8 |
| Thickness (mm) | 1 |
| Pitch (mm) | .65 |
| Max Height (mm) | 1.2 |
| Mechanical Data | Download |
Parametrics
| Control Method | Current,Voltage |
| Duty Cycle(Max) | 95 % |
| Frequency(Max) | 1000 kHz |
| Gate Drive(Typ) | 0.2 A |
| Operating Temperature Range | -40 to 125 C |
| Package Group | TSSOP |
| Rating | Catalog |
| Special Features | Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin |
| Topology | Phase-Shifted Full-Bridge |
| UVLO Thresholds On/Off | 7.3/6.75 V |
| Vin(Max) | 20 V |
| Vin(Min) | 8 V |
Eco Plan
| RoHS | Compliant |
Design Kits & Evaluation Modules
- Evaluation Modules & Boards: UCC27714EVM-551
UCC27714 600W Phase Shifted Full Bridge Converter Evaluation Module
Lifecycle Status: Active (Recommended for new designs) - Evaluation Modules & Boards: UCC28950EVM-442
UCC28950 600-W, Phase-Shifted, Full-Bridge Converter Evaluation Module
Lifecycle Status: Active (Recommended for new designs)
Application Notes
- UCC28950 600W Phase Shifted Full Bridge Design Review/Application Report (Rev. C)PDF, 935 Kb, Revision: C, File published: Jun 9, 2011
In high-power server applications to meet high-efficiency and green standards some power-supply designers have found it easier to use a phase-shifted, full-bridge converter. This is because the phase-shifted, full-bridge converter can obtain zero-voltage switching on the primary side of the converter reducing switching losses, and EMI and increasing overall efficiency. The purpose of this applicat - Gate Driver Design ConsiderationsPDF, 229 Kb, File published: Oct 10, 2016
The UCC28950/UCC28951-Q1 phase-shifted full-bridge controllers offer several features to improve power conversion efficiency at light loads. In particular, as the load current drops below the DCM threshold the duty cycle applied to the transformer reduces and eventually the device enters a burst mode. This application note describes how a user can design their gate driver circuits to operate corre - Frequency Dithering With the UCC28950 and TLV3201PDF, 386 Kb, File published: May 9, 2012
- Computing power going “Platinum”PDF, 412 Kb, File published: Aug 11, 2010
- Synchronizing Three or More UCC28950 Phase-Shifted, Full-Bridge ControllersPDF, 650 Kb, File published: Sep 13, 2011
One of the key features of the UCC28950 phase-shifted, full-bridge controller is its ability to synchronize its main oscillator to an external clock source. In this way, multiple controllers can be synchronized to improve performance criteria of the end power supply. This application report expands the details of the synchronization capability of the UCC28950, provides examples of simple circuits - Pre-biased Output Voltage Startup Operation of the UCC28950PDF, 137 Kb, File published: Aug 1, 2011
- 3Q 2010 Issue Analog Applications JournalPDF, 1.5 Mb, File published: Aug 11, 2010
Model Line
Series: UCC28950 (2)
- UCC28950PW UCC28950PWR
Manufacturer's Classification
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller
