Datasheet Texas Instruments UC3854A — Ficha de datos

FabricanteTexas Instruments
SerieUC3854A

Preregulador de factor de alta potencia mejorado

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

UC3854ADWUC3854ADWG4UC3854ADWTRUC3854ADWTRG4UC3854ANUC3854ANG4
Estado del ciclo de vidaActivo (Recomendado para nuevos diseños)Activo (Recomendado para nuevos diseños)Activo (Recomendado para nuevos diseños)Activo (Recomendado para nuevos diseños)Activo (Recomendado para nuevos diseños)Activo (Recomendado para nuevos diseños)
Disponibilidad de muestra del fabricanteNoNo

Embalaje

UC3854ADWUC3854ADWG4UC3854ADWTRUC3854ADWTRG4UC3854ANUC3854ANG4
N123456
Pin161616161616
Package TypeDWDWDWDWNN
Industry STD TermSOICSOICSOICSOICPDIPPDIP
JEDEC CodeR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDIP-TR-PDIP-T
Package QTY4040200020002525
CarrierTUBETUBELARGE T&RLARGE T&RTUBETUBE
Device MarkingUC3854ADWUC3854ADWUC3854ADWUC3854ADWUC3854ANUC3854AN
Width (mm)7.57.57.57.56.356.35
Length (mm)10.310.310.310.319.319.3
Thickness (mm)2.352.352.352.353.93.9
Pitch (mm)1.271.271.271.272.542.54
Max Height (mm)2.652.652.652.655.085.08
Mechanical DataDescargarDescargarDescargarDescargarDescargarDescargar

Paramétricos

Parameters / ModelsUC3854ADWUC3854ADWG4UC3854ADWTRUC3854ADWTRG4UC3854ANUC3854ANG4
Approx. price, US$1.56 | 1ku1.56 | 1ku1.56 | 1ku1.56 | 1ku1.56 | 1ku1.56 | 1ku
Control methodCCMCCMCCMCCMCCMCCM
Device typeSingle-phase PFCSingle-phase PFCSingle-phase PFCSingle-phase PFCSingle-phase PFCSingle-phase PFC
Features> 750W Applications,Average Current Mode,Enable> 750W Applications,Average Current Mode,Enable> 750W Applications,Average Current Mode,Enable> 750W Applications,Average Current Mode,Enable> 750W Applications,Average Current Mode,Enable> 750W Applications,Average Current Mode,Enable
Operating supply current, mA121212121212
Operating supply(Max), V202020202020
Operating temperature range, C0 to 700 to 700 to 700 to 700 to 700 to 70
Package GroupPDIP|16,SOIC|16PDIP|16,SOIC|16PDIP|16,SOIC|16PDIP|16,SOIC|16PDIP|16,SOIC|16PDIP|16,SOIC|16
Package size: mm2:W x L, PKG16PDIP: 181 mm2: 9.4 x 19.3 (PDIP|16),16SOIC: 77 mm2: 7.5 x 10.3 (SOIC|16)16PDIP: 181 mm2: 9.4 x 19.3 (PDIP|16),16SOIC: 77 mm2: 7.5 x 10.3 (SOIC|16)16PDIP: 181 mm2: 9.4 x 19.3 (PDIP|16),16SOIC: 77 mm2: 7.5 x 10.3 (SOIC|16)16PDIP: 181 mm2: 9.4 x 19.3 (PDIP|16),16SOIC: 77 mm2: 7.5 x 10.3 (SOIC|16)16PDIP: 181 mm2: 9.4 x 19.3 (PDIP|16),16SOIC: 77 mm2: 7.5 x 10.3 (SOIC|16)16PDIP: 181 mm2: 9.4 x 19.3 (PDIP|16),16SOIC: 77 mm2: 7.5 x 10.3 (SOIC|16)
Peak output sink current gate drive, A111111
Peak output source current gate drive, A-1-1-1-1-1-1
Practical operating frequency(Max), MHz0.20.20.20.20.20.2
RatingCatalogCatalogCatalogCatalogCatalogCatalog
Startup current, mA0.250.250.250.250.250.25
UVLO thresholds on/off, V16/1016/1016/1016/1016/1016/10

Plan ecológico

UC3854ADWUC3854ADWG4UC3854ADWTRUC3854ADWTRG4UC3854ANUC3854ANG4
RoHSObedienteObedienteObedienteObedienteObedienteObediente
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