Datasheet Texas Instruments UC3854ADWG4 — Ficha de datos

FabricanteTexas Instruments
SerieUC3854A
Numero de parteUC3854ADWG4

Preregulador de factor de alta potencia mejorado 16-SOIC 0 a 70

Hojas de datos

Advanced High Power Factor Preregulator datasheet
PDF, 1.9 Mb, Revisión: E, Archivo publicado: agosto 25, 2006
Extracto del documento

Estado

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

Embalaje

Pin16
Package TypeDW
Industry STD TermSOIC
JEDEC CodeR-PDSO-G
Package QTY40
CarrierTUBE
Device MarkingUC3854ADW
Width (mm)7.5
Length (mm)10.3
Thickness (mm)2.35
Pitch (mm)1.27
Max Height (mm)2.65
Mechanical DataDescargar

Paramétricos

Approx. price1.56 | 1ku US$
Control methodCCM
Device typeSingle-phase PFC
Features> 750W Applications,Average Current Mode,Enable
Operating supply current12 mA
Operating supply(Max)20 V
Operating temperature range0 to 70 C
Package GroupPDIP|16,SOIC|16
Package size: mm2:W x L16PDIP: 181 mm2: 9.4 x 19.3 (PDIP|16),16SOIC: 77 mm2: 7.5 x 10.3 (SOIC|16) PKG
Peak output sink current gate drive1 A
Peak output source current gate drive-1 A
Practical operating frequency(Max)0.2 MHz
RatingCatalog
Startup current0.25 mA
UVLO thresholds on/off16/10 V

Plan ecológico

RoHSObediente
Pb gratis

Notas de aplicación

  • DN-44 UC3854A and UC3854B Advanced Power Factor Correction Control ICs (Rev. A)
    PDF, 158 Kb, Revisión: A, Archivo publicado: nov 15, 2005
  • 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

Clasificación del fabricante

  • Semiconductors > Analog and Mixed-Signal > Power management > Offline & isolated DC/DC controllers & converters > Power factor correction (PFC) controllers