Datasheet Texas Instruments UC3854BQ — Ficha de datos

FabricanteTexas Instruments
SerieUC3854B
Numero de parteUC3854BQ
Datasheet Texas Instruments UC3854BQ

Hojas de datos

Advanced High Power Factor Preregulator datasheet
PDF, 732 Kb, Revisión: E, Archivo publicado: agosto 25, 2006
Extracto del documento

Precios

Estado

Estado del ciclo de vidaObsoleto (El fabricante ha interrumpido la producción del dispositivo)
Disponibilidad de muestra del fabricanteNo

Embalaje

Pin20
Package TypeUTR

Paramétricos

Approx. Price (US$)1.35 | 1ku
Control MethodCCM
Device TypeSingle-phase PFC
Operating Supply Current(mA)12
Operating Supply(Max)(V)20
Operating Temperature Range(C)0 to 70
Package GroupPDIP
SOIC
Package Size: mm2:W x L (PKG)See datasheet (PDIP)
Peak Output Sink Current Gate Drive(A)1
Peak Output Source Current Gate Drive(A)-1
Practical Operating Frequency(Max)(MHz)0.2
RatingCatalog
Special Features> 750W Applications
Average Current Mode
Enable
Startup Current(mA)0.25
UVLO Thresholds On/Off(V)10.5/10

Plan ecológico

RoHSDesobediente
Pb gratisNo

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