Datasheet Texas Instruments UC3854ADWTR — Ficha de datos

FabricanteTexas Instruments
SerieUC3854A
Numero de parteUC3854ADWTR

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

Precios

Estado

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

Embalaje

Pin16
Package TypeDW
Industry STD TermSOIC
JEDEC CodeR-PDSO-G
Package QTY2000
CarrierLARGE T&R
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