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Datasheet Texas Instruments UCC1895L

Datasheet Texas Instruments UCC1895L

ManufacturerTexas Instruments
Part NumberUCC1895L

BiCMOS Advanced Phase Shift Resonant Controller 20-LCCC -55 to 125




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


Package TypeFK
Industry STD TermLCCC
Package QTY1
Device MarkingUCC1895L
Width (mm)8.89
Length (mm)8.89
Thickness (mm)1.83
Pitch (mm)1.27
Max Height (mm)2.03
Mechanical DataDownload »


Control MethodCurrent
Duty Cycle(Max)(%)100
Operating Temperature Range(C)-55 to 125
Package GroupLCCC
Package Size: mm2:W x L (PKG)See datasheet (CDIP)
Special FeaturesError Amplifier
Green Mode
Light Load Efficiency
Soft Start
Soft Switching
Synchronization Pin
UVLO Thresholds On/Off(V)11/9

Eco Plan

Pb FreeNo

Design Kits & Evaluation Modules

  • Evaluation Modules & Boards: UCC3895EVM-001
    UCC3895 Evaluation Module
    Lifecycle Status: Active (Recommended for new designs)

Application Notes

  • Download » Application Notes, PDF, 70 Kb, 08-21-2002
    UCC3895 CD Output Asymmetric Duty Cycle Operation
    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.
  • Download » Application Notes, PDF, 393 Kb, 04-09-2009
    UCC2895 Layout and Grounding Recommendations
    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.
  • Download » Application Notes, PDF, 293 Kb, 10-04-2001
    A Power Management Solution for Efficient, Multiple Output Applications
  • Download » Application Notes, PDF, 21 Kb, 02-22-2001
    A Comparison Between the BiCMOS UCC3895 Phase Shift Controller and the UC3875
    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
  • Download » Application Notes, PDF, 81 Kb, 01-12-2001
    DN-63 The Current-Doubler Rectifier: An Alternative Rectification Technique
    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
  • Download » Application Notes, PDF, 207 Kb, 02-27-2003
    Synchronous Rectifiers of a Current Doubler
    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
  • Download » Application Notes, PDF, 116 Kb, 09-21-2004
    Current Doubler Rectifier Offers Ripple Current Cancellation

Moldel Line

Series: UCC1895 (2)

Manufacturer's Classification

  • Semiconductors > Space & High Reliability > Power Management Products > Offline and Isolated DC/DC Controller and Converter
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