Datasheet Texas Instruments UCC28251PWR — Ficha de datos

FabricanteTexas Instruments
SerieUCC28251
Numero de parteUCC28251PWR
Datasheet Texas Instruments UCC28251PWR

Controlador PWM avanzado con operación pre-polarización 20-TSSOP -40 a 125

Hojas de datos

UCC28251 Advanced PWM Controller With Prebias Operation datasheet
PDF, 1.8 Mb, Revisión: E, Archivo publicado: dic 29, 2014
Extracto del documento

Precios

Estado

Estado del ciclo de vidaActivo (Recomendado para nuevos diseños)
Disponibilidad de muestra del fabricante

Embalaje

Pin20
Package TypePW
Industry STD TermTSSOP
JEDEC CodeR-PDSO-G
Package QTY2000
CarrierLARGE T&R
Device MarkingUCC28251
Width (mm)4.4
Length (mm)6.5
Thickness (mm)1
Pitch (mm).65
Max Height (mm)1.2
Mechanical DataDescargar

Paramétricos

Control MethodCurrent,Feedforward,Voltage
Duty Cycle(Max)100 %
Frequency(Max)1000 kHz
Frequency(Min)40 kHz
Gate Drive(Typ)0.2 A
Operating Temperature Range-40 to 125 C
Package GroupTSSOP
RatingCatalog
Special FeaturesLeading Edge Blanking,Multi-topology,Programmable Slope Compensation,Soft Start,Synchronization Pin
TopologyForward,Full-Bridge,Half-Bridge,Push-Pull
UVLO Thresholds On/Off4.3/4.1 V
Vin(Max)20 V
Vin(Min)4.3 V

Plan ecológico

RoHSObediente

Kits de diseño y Módulos de evaluación

  • Evaluation Modules & Boards: UCC28250EVM-564
    Evaluation Module for UCC28250 Adv.PWM Controller w/ Pre-biased Load Op. on Secondary Side Control
    Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)
  • Evaluation Modules & Boards: UCC28250EVM-501
    Evaluation Module for UCC28250 Advanced PWM Controller on Primary Side Control
    Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)

Notas de aplicación

  • Differences Between the UCC28251 and UCC28250 and Evaluation of the UCC28251 in (Rev. A)
    PDF, 36 Kb, Revisión: A, Archivo publicado: feb 15, 2013
    The UCC28251 is a functional variant of the UCC28250 PWM Controller. While the same basic functionality of the UCC28250 is largely maintained, the UCC28251 is designed to operate at a lower frequency (minimum of 27 kHz when programmed by RT pin) allowing operation in 400-V input DC-to-DC converters in off-line AC-to-DC power supplies, where frequency-dependent high-voltage switching lossesare an
  • Fast input-voltage transient response with digitally-controlled isolated DC/DC
    PDF, 293 Kb, Archivo publicado: jul 24, 2015
  • Analog Applications Journal 3Q 2015
    PDF, 7.1 Mb, Archivo publicado: jul 24, 2015

Linea modelo

Serie: UCC28251 (4)

Clasificación del fabricante

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