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Datasheet Texas Instruments UCC28950PW

Texas Instruments UCC28950PW

Manufacturer:Texas Instruments
Part Number:UCC28950PW

Green Phase-Shifted Full-Bridge Controller with Synchronous Rectification 24-TSSOP -40 to 125




Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes


Package TypePW
Industry STD TermTSSOP
Package QTY60
Device MarkingUCC28950
Width (mm)4.4
Length (mm)7.8
Thickness (mm)1
Pitch (mm).65
Max Height (mm)1.2
Mechanical DataDownload »


Approx. Price (US$)3.15 | 1ku
Control MethodCurrent
Duty Cycle(Max)(%)95
Gate Drive(Typ)(A)0.2
Operating Temperature Range(C)-40 to 125
Package GroupTSSOP
Special FeaturesError Amplifier
Soft Start
Soft Switching
Synchronization Pin
UVLO Thresholds On/Off(V)7.3/6.75

Eco Plan

Pb FreeYes

Manufacturer's Classification

  • Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller

Design Kits & Evaluation Modules

  • Evaluation Modules & Boards: UCC28950EVM-442
    UCC28950 600-W, Phase-Shifted, Full-Bridge Converter Evaluation Module
    Lifecycle Status: Active (Recommended for new designs)

Application Notes

  • Download » Application Notes, PDF, 935 Kb, Revision: C, 06-09-2011
    UCC28950 600W Phase Shifted Full Bridge Design Review/Application Report (Rev. C)
    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
  • Download » Application Notes, PDF, 229 Kb, 08-22-2016
    Gate Driver Design Considerations
    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
  • Download » Application Notes, PDF, 386 Kb, 05-09-2012
    Frequency Dithering With the UCC28950 and TLV3201
  • Download » Application Notes, PDF, 412 Kb, 08-11-2010
    Computing power going “Platinum”
  • Download » Application Notes, PDF, 650 Kb, 09-13-2011
    Synchronizing Three or More UCC28950 Phase-Shifted, Full-Bridge Controllers
    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
  • Download » Application Notes, PDF, 137 Kb, 08-01-2011
    Pre-biased Output Voltage Startup Operation of the UCC28950
  • Download » Application Notes, PDF, 1.5 Mb, 08-11-2010
    3Q 2010 Issue Analog Applications Journal
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