Datasheet Texas Instruments UC1854J — Datenblatt

HerstellerTexas Instruments
SerieUC1854
ArtikelnummerUC1854J
Datasheet Texas Instruments UC1854J

High Power Factor Preregulator 16-CDIP -55 bis 125

Datenblätter

UCx854 High-Power Factor Preregulator datasheet
PDF, 949 Kb, Revision: A, Datei veröffentlicht: Dec 16, 2016
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Preise

Status

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityNo

Verpackung

Pin16
Package TypeJ
Industry STD TermCDIP
JEDEC CodeR-GDIP-T
Package QTY1
CarrierTUBE
Device MarkingUC1854J
Width (mm)6.92
Length (mm)19.56
Thickness (mm)4.57
Pitch (mm)2.54
Max Height (mm)5.08
Mechanical DataHerunterladen

Parameter

Control MethodCCM
Duty Cycle(Max)95 %
Operating Temperature Range-55 to 125 C
Package GroupCDIP
Package Size: mm2:W x LSee datasheet (CDIP) PKG
RatingMilitary
Special FeaturesAverage Current Mode,Enable
UVLO Thresholds On/Off16/10 V

Öko-Plan

RoHSSee ti.com

Anwendungshinweise

  • U-134 UC3854 Controlled Power Factor Correction Circuit Design
    PDF, 346 Kb, Datei veröffentlicht: Sep 5, 1999
    The UC1854 provides active power factor correction for power systems that otherwise would draw non-sinusoidal current from sinusoidal power lines. This device implements all the control functions necessary to build a power supply capable of optimally using available power-line current while minimizing line-current distortion. This application note describes the concepts and design of a boost prere
  • DN-39E Optimizing Performance in UC3854 Power Factor Correction Applications
    PDF, 277 Kb, Datei veröffentlicht: Sep 5, 1999
    The performance of the UC3854 Power-Factor Correction IC in the 250W application example has been evaluated using a precision PFC/THD instrument. The result was a power factor of 0.999 and Total Harmonic Distortion (THD) of 3.81%, measured to the 50th line frequency harmonic at nominal line and full load. Users should get similar results at these conditions. as well as over most line and load rang
  • DN-41 Extend Current Transformer Range
    PDF, 37 Kb, Datei veröffentlicht: Sep 5, 1999
    The problems with self reset of current transformers for unipolar pulse applications can be overcome with simple forced-reset techniques derived from magnetic amplifiers. Duty factors above 90% are achievable with these techniques. This design note describes a circuit configured for forced reset and a configuration that generates a negative voltage from the current transformer.
  • 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.
  • 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 > Space & High Reliability > Power Management Products > Offline and Isolated DC/DC Controller and Converter