Datasheet Texas Instruments UCC2895

ManufacturerTexas Instruments
SeriesUCC2895
Datasheet Texas Instruments UCC2895

Phase-shifted full-bridge controller with enhanced control logic,, -40°C to 85°C

Datasheets

UCC1895, UCC2895, UCC3895 BiCMOS Advanced Phase-Shift PWM Controller datasheet
PDF, 1.7 Mb, Revision: P, File published: Jun 21, 2013
Extract from the document
Datasheet

Prices

Status

UCC2895-WUCC2895DWUCC2895DWG4UCC2895DWTRUCC2895DWTRG4UCC2895NUCC2895NG4UCC2895PWUCC2895PWG4UCC2895PWTRUCC2895Q
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)NRND (Not recommended for new designs)
Manufacture's Sample AvailabilityNoYesYesNoNoYesYesYesNoNo

Packaging

UCC2895-WUCC2895DWUCC2895DWG4UCC2895DWTRUCC2895DWTRG4UCC2895NUCC2895NG4UCC2895PWUCC2895PWG4UCC2895PWTRUCC2895Q
Package TypeYSDWDWDWDWNNPWPWFN
Pin202020202020202020
Industry STD TermSOICSOICSOICSOICPDIPPDIPTSSOPTSSOPPLCC
JEDEC CodeR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDIP-TR-PDIP-TR-PDSO-GR-PDSO-GS-PQCC-J
Package QTY252520002000182070200046
CarrierTUBETUBELARGE T&RLARGE T&RTUBETUBETUBELARGE T&RTUBE
Device MarkingUCC2895DWUCC2895DWUCC2895DWUCC2895DWUCC2895NUCC2895NUCC2895UCC2895UCC2895Q
Width (mm)7.57.57.57.56.356.354.44.48.96
Length (mm)12.812.812.812.824.3324.336.56.58.96
Thickness (mm)2.352.352.352.354.574.57114.06
Pitch (mm)1.271.271.271.272.542.540.650.651.27
Max Height (mm)2.652.652.652.655.085.081.21.24.57
Mechanical DataDownloadDownloadDownloadDownloadDownloadDownloadDownloadDownloadDownload

Parametrics

Parameters / ModelsUCC2895-W
UCC2895-W
UCC2895DWUCC2895DWG4UCC2895DWTRUCC2895DWTRG4UCC2895NUCC2895NG4
UCC2895NG4
UCC2895PWUCC2895PWG4UCC2895PWTRUCC2895Q
UCC2895Q
Approx. Price (US$)3.10 | 1ku
Approx. price, US$1.85 | 1ku1.85 | 1ku1.85 | 1ku1.85 | 1ku1.85 | 1ku1.85 | 1ku1.85 | 1ku
Control MethodCurrent
Feedforward
Voltage
Current,Feedforward,VoltageCurrent,Feedforward,Voltage
Control methodCurrent,Feedforward,VoltageCurrent,Feedforward,VoltageCurrent,Feedforward,VoltageCurrent,Feedforward,VoltageCurrent,Feedforward,VoltageCurrent,Feedforward,VoltageCurrent,Feedforward,Voltage
Duty Cycle(Max), %100100
Duty Cycle(Max)(%)100
Duty cycle(Max), %100100100100100100100
FeaturesAdjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization PinAdjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization PinAdjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization PinAdjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization PinAdjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization PinAdjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization PinAdjustable Switching Frequency,Current Limiting,Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin
Frequency(Max), kHz100010001000100010001000100010001000
Frequency(Max)(kHz)1000
Gate Drive(Typ), A0.10.1
Gate Drive(Typ)(A)0.1
Gate drive(Typ), A0.10.10.10.10.10.10.1
Operating Temperature Range, C-40 to 85-40 to 85
Operating Temperature Range(C)-40 to 85
Operating temperature range, C-40 to 85-40 to 85-40 to 85-40 to 85-40 to 85-40 to 85-40 to 85
Package GroupWAFERSALEPDIP|20,SOIC|20,TSSOP|20PDIP|20,SOIC|20,TSSOP|20PDIP|20,SOIC|20,TSSOP|20PDIP|20,SOIC|20,TSSOP|20PDIP|20,SOIC|20,TSSOP|20PDIPPDIP|20,SOIC|20,TSSOP|20PDIP|20,SOIC|20,TSSOP|20PDIP,SOIC,TSSOP
Package size: mm2:W x L, PKG20PDIP: 229 mm2: 9.4 x 24.33 (PDIP|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP|20)20PDIP: 229 mm2: 9.4 x 24.33 (PDIP|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP|20)20PDIP: 229 mm2: 9.4 x 24.33 (PDIP|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP|20)20PDIP: 229 mm2: 9.4 x 24.33 (PDIP|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP|20)20PDIP: 229 mm2: 9.4 x 24.33 (PDIP|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP|20)20PDIP: 229 mm2: 9.4 x 24.33 (PDIP|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP|20)20PDIP: 229 mm2: 9.4 x 24.33 (PDIP|20),20SOIC: 132 mm2: 10.3 x 12.8 (SOIC|20),20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP|20)
RatingCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalogCatalog
Special FeaturesError Amplifier
Multi-topology
Soft Start
Soft Switching
Synchronization Pin
Error Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization PinError Amplifier,Multi-topology,Soft Start,Soft Switching,Synchronization Pin
TopologyFull-BridgePhase-Shifted Full-BridgePhase-Shifted Full-BridgePhase-Shifted Full-BridgePhase-Shifted Full-BridgePhase-Shifted Full-BridgePhase-Shifted Full-BridgePhase-Shifted Full-BridgePhase-Shifted Full-BridgePhase-Shifted Full-Bridge
UVLO Thresholds On/Off, V11/911/9
UVLO Thresholds On/Off(V)11/9
UVLO thresholds on/off, V11/911/911/911/911/911/911/9
VCC(Max), V16.516.516.516.516.516.516.5
VCC(Min), V10101010101010
Vin(Max), V1717
Vin(Max)(V)17
Vin(Min), V99
Vin(Min)(V)9

Eco Plan

UCC2895-WUCC2895DWUCC2895DWG4UCC2895DWTRUCC2895DWTRG4UCC2895NUCC2895NG4UCC2895PWUCC2895PWG4UCC2895PWTRUCC2895Q
RoHSNot CompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant
Pb FreeNoYesYesYesYesYesYesYes

Application Notes

  • Computing power going “Platinum”
    PDF, 412 Kb, File published: Aug 11, 2010
  • UCC3895 CD Output Asymmetric Duty Cycle Operation
    PDF, 70 Kb, File published: Aug 21, 2002
    A small number of current-mode applications using non?synchronous output stages have experienced asymmetric pulse widths on the OUTC and OUTD outputs of the UCC3895. Applications using synchronous rectification and/or voltage mode control typically do not experience this anomaly. For the cost of a single resistor, a simple fix allows reliable and stable operation of the UCC3895.
  • UCC2895 Layout and Grounding Recommendations
    PDF, 393 Kb, File published: Apr 9, 2009
    The UCC2895 family of Phase Shifted Full Bridge Power Converters Control Circuits are designed to provide efficient power conversion with minimal noise generation. This is accomplished by the resonant switching of the primary side voltages, which minimizes the switching losses and the voltage/current transients that would be present in a hard switched conventional full bridge power supply.
  • A Power Management Solution for Efficient, Multiple Output Applications
    PDF, 293 Kb, File published: Oct 4, 2001
  • A Comparison Between the BiCMOS UCC3895 Phase Shift Controller and the UC3875
    PDF, 21 Kb, File published: Feb 22, 2001
    This application report compares the BiCMOS UCC3895 to its bipolar predecessors, the UC3875/6/7/8 family and the UC3879 controller. All of these integrated circuits provide the control and drive signals needed to implement a full-bridge converter using phase-shifted control. The UCC3895 represents the latest offering in the Texas Instruments line of phase-shift controllers, incorporating a feature
  • DN-63 The Current-Doubler Rectifier: An Alternative Rectification Technique
    PDF, 81 Kb, File published: Jan 12, 2001
    The UC3875, UC3879, and UC3895 families of ICs control a bridge power stage by phase-shifting the switching of one half-bridge with respect to the other. This method allows constant-frequency pulse-width modulation in combination with resonant, zero-voltage switching for high efficiency performance. These ICs can be configured to provide control in either voltage mode or current mode operation, wi
  • Phase Shifted Full Bridge, Zero Voltage Transition Design Considerations (Rev. A)
    PDF, 393 Kb, Revision: A, File published: Jan 22, 2011
    This Application Note will highlight the design considerations incurred in a high frequency power supply using the Phase Shifted Resonant PWM control technique. An overview of this switching technique including comparisons to existing fixed frequency non-resonant and variable frequency Zero Voltage Switching is included. Numerous design equations and associated voltage, current and timing waveform
  • 3Q 2010 Issue Analog Applications Journal
    PDF, 1.5 Mb, File published: Aug 11, 2010
  • Synchronous Rectifiers of a Current Doubler
    PDF, 207 Kb, File published: Feb 27, 2003
    Driving a current doubler synchronous rectification output stage can be a very complex task, especially for a phase shifted full bridge topology. However, using the A and B outputs of the UCC3895 along with the UCC37324 dual 4-A MOSFET driver, direct PWM control of a synchronous rectifier current doubler output stage achieves. This technique provides the proper gating and timing signals necessary
  • Current Doubler Rectifier Offers Ripple Current Cancellation
    PDF, 116 Kb, File published: Sep 21, 2004

Model Line

Manufacturer's Classification

  • Semiconductors > Analog and Mixed-Signal > Power management > Offline & isolated DC/DC controllers & converters > PWM controllers & resonant controllers

1-4 Layer PCBs $2