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Datasheet Texas Instruments UCC2897A

Datasheet Texas Instruments UCC2897A

ManufacturerTexas Instruments
SeriesUCC2897A

Advanced Current-Mode Active Clamp PWM Controller

Datasheets

  • Download » Datasheet PDF, 1.7 Mb, Revision: E, File published: Jun 3, 2011
    UCC2897A Advanced Current-Mode Active-Clamp PWM Controller datasheet
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    Design UCC2897A
    SLUS829F – AUGUST 2008 – REVISED NOVEMBER 2017 UCC2897A Advanced Current-Mode Active-Clamp PWM Controller
    1 Features 3 Description The
    UCC2897A
    PWM
    controller
    simplifies
    implementation of the various active clamp or reset
    and synchronous rectifier switching power topologies. 1 Low-Output Jitter
    Soft-Stop Shutdown of MAIN and AUX
    110-V Input Startup Function
    Ideal for Active-Clamp, Reset-Forward, Flyback
    and Synchronous Rectifier Uses
    Provides Complementary Auxiliary Driver with
    Programmable Dead Time (Turn-On Delay)
    between AUX and MAIN Switches
    Peak Current-Mode Control with 0.5-V Cycle-byCycle Current Limiting ...

Prices

Family: UCC2897A

Status

UCC2897APWUCC2897APWRUCC2897ARGPRUCC2897ARGPT
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityNoYesNoYes

Packaging

UCC2897APWUCC2897APWRUCC2897ARGPRUCC2897ARGPT
Pin20202020
Package TypePWPWRGPRGP
Industry STD TermTSSOPTSSOPVQFNVQFN
JEDEC CodeR-PDSO-GR-PDSO-GS-PQFP-NS-PQFP-N
Package QTY7020003000250
CarrierTUBELARGE T&RLARGE T&RSMALL T&R
Device MarkingUCC2897AUCC2897A2897A2897A
Width (mm)4.44.444
Length (mm)6.56.544
Thickness (mm)11.93.93
Pitch (mm).65.65.5.5
Max Height (mm)1.21.211
Mechanical DataDownload »Download »Download »Download »

Parametrics

UCC2897APWUCC2897APWRUCC2897ARGPRUCC2897ARGPT
UCC2897APWUCC2897APWRUCC2897ARGPRUCC2897ARGPT
Control MethodCurrentCurrentCurrentCurrent
Duty Cycle(Max), %74747474
Frequency(Max), kHz1000100010001000
Gate Drive(Typ), A2222
Operating Temperature Range, C-40 to 125-40 to 125-40 to 125-40 to 125
Package GroupTSSOPTSSOPQFNQFN
RatingCatalogCatalogCatalogCatalog
Special FeaturesHV Start-up,Input Line Monitor,Programmable Slope Compensation,Soft Start,Soft SwitchingHV Start-up,Input Line Monitor,Programmable Slope Compensation,Soft Start,Soft SwitchingHV Start-up,Input Line Monitor,Programmable Slope Compensation,Soft Start,Soft SwitchingHV Start-up,Input Line Monitor,Programmable Slope Compensation,Soft Start,Soft Switching
TopologyActive-Clamp Forward,ForwardActive-Clamp Forward,ForwardActive-Clamp Forward,ForwardActive-Clamp Forward,Forward
UVLO Thresholds On/Off, V12.7/~812.7/~812.7/~812.7/~8
Vin(Max), V110110110110
Vin(Min), V18181818

Eco Plan

UCC2897APWUCC2897APWRUCC2897ARGPRUCC2897ARGPT
RoHSCompliantCompliantCompliantCompliant

Application Notes

  • Download » Application Notes PDF, 748 Kb, File published: Jan 17, 2014
    UCC2897A Peak Current Mode Active Clamp Forward Converter Small Signal Modeling
  • Download » Application Notes PDF, 192 Kb, File published: Jan 5, 2010
    External Slope Compensation for UCC2897A in Some Special Applications
  • Download » Application Notes PDF, 845 Kb, File published: May 6, 2010
    Understanding and Designing an Active Clamp Current Mode Controlled Converter
    The UCC2897A Current Mode Active Clamp PWM Controller offers a highly integrated feature set resulting in precision control required for an active clamp forward or flyback converter. The UCC2897A data sheet contains all the design details necessary for accurately programming the device. However, there are significant design considerations and trade-offs unique to the active clamp power stage that
  • Download » Application Notes PDF, 361 Kb, File published: Aug 27, 2009
    Method of Providing Hiccup Operation for UCC2897AEVM
    This application note is to provide users of the UCC2897AEVM with a method of generating acyclic restart or restart attempt of the EVM should the converter encounter an overcurrent condition including an output short.

Moldel Line

Series: UCC2897A (4)

Manufacturer's Classification

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

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