Datasheet Texas Instruments UC3855ADW — Ficha de datos

FabricanteTexas Instruments
SerieUC3855A
Numero de parteUC3855ADW
Datasheet Texas Instruments UC3855ADW

Preregulador de factor de potencia de alto rendimiento 20-SOIC 0 a 70

Hojas de datos

High Performance Power Factor Preregulator datasheet
PDF, 1.3 Mb, Revisión: B, Archivo publicado: oct 27, 2005
Extracto del documento

Precios

Estado

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

Embalaje

Pin20
Package TypeDW
Industry STD TermSOIC
JEDEC CodeR-PDSO-G
Package QTY25
CarrierTUBE
Device MarkingUC3855ADW
Width (mm)7.5
Length (mm)12.8
Thickness (mm)2.35
Pitch (mm)1.27
Max Height (mm)2.65
Mechanical DataDescargar

Paramétricos

Control MethodCCM
Device TypeSingle-phase PFC
Operating Supply Current17 mA
Operating Supply(Max)20 V
Operating Temperature Range0 to 70 C
Package GroupSOIC
Package Size: mm2:W x L20SOIC: 132 mm2: 10.3 x 12.8(SOIC) PKG
Peak Output Sink Current Gate Drive1.5 A
Peak Output Source Current Gate Drive-1.5 A
Practical Operating Frequency(Max)0.5 MHz
RatingCatalog
Special Features> 750W Applications,Average Current Mode,Enable,OVP
Startup Current0.15 mA
UVLO Thresholds On/Off16/10 V

Plan ecológico

RoHSObediente

Notas de aplicación

  • U-153 UC3855A/B High Performance Power Factor Preregulator (Rev. A)
    PDF, 875 Kb, Revisión: A, Archivo publicado: sept 23, 2003
  • AC Requirements for Power Factor Correction Circuits
    PDF, 29 Kb, Archivo publicado: marzo 28, 2002
    This technical brief identifies the recommended range of IAC for each of the devices within the UCC3854 family of PFC controllers.
  • DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)
    PDF, 80 Kb, Revisión: A, Archivo publicado: nov 6, 2001
  • Accurate PWM Duty Cycle Clamp
    PDF, 58 Kb, Archivo publicado: enero 25, 2002
    Power supply applications using current sense transformers require a duty cycle clamp on the pulse width modulator (PWM) to ensure transformer reset. Not all PWMs come with a duty cycle clamp presenting a problem for the power supply designer. This application note shows how to implement a duty cycle clamp by using a simple delay circuit.

Linea modelo

Serie: UC3855A (3)

Clasificación del fabricante

  • Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction