Datasheet Texas Instruments UC3854BQ — Datenblatt

HerstellerTexas Instruments
SerieUC3854B
ArtikelnummerUC3854BQ
Datasheet Texas Instruments UC3854BQ

Datenblätter

Advanced High Power Factor Preregulator datasheet
PDF, 732 Kb, Revision: E, Datei veröffentlicht: Aug 25, 2006
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Preise

Status

Lifecycle StatusObsolete (Manufacturer has discontinued the production of the device)
Manufacture's Sample AvailabilityNo

Verpackung

Pin20
Package TypeUTR

Parameter

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

Öko-Plan

RoHSNot Compliant
Pb FreeNo

Anwendungshinweise

  • DN-44 UC3854A and UC3854B Advanced Power Factor Correction Control ICs (Rev. A)
    PDF, 158 Kb, Revision: A, Datei veröffentlicht: Nov 15, 2005
  • AC Requirements for Power Factor Correction Circuits
    PDF, 29 Kb, Datei veröffentlicht: Mar 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, Revision: A, Datei veröffentlicht: Nov 6, 2001
  • Accurate PWM Duty Cycle Clamp
    PDF, 58 Kb, Datei veröffentlicht: Jan 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.

Modellreihe

Herstellerklassifikation

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