Datasheet Texas Instruments UC3846QTR — Ficha de datos

FabricanteTexas Instruments
SerieUC3846
Numero de parteUC3846QTR
Datasheet Texas Instruments UC3846QTR

Controlador PWM en modo actual 20-PLCC 0 a 70

Hojas de datos

UCx846/7 Current Mode PWM Controller datasheet
PDF, 1.6 Mb, Revisión: C, Archivo publicado: enero 4, 2016
Extracto del documento

Precios

Estado

Estado del ciclo de vidaNRND (No recomendado para nuevos diseños)
Disponibilidad de muestra del fabricanteNo

Embalaje

Pin20
Package TypeFN
Industry STD TermPLCC
JEDEC CodeS-PQCC-J
Package QTY1000
CarrierLARGE T&R
Device MarkingUC3846Q
Width (mm)8.96
Length (mm)8.96
Thickness (mm)4.06
Pitch (mm)1.27
Max Height (mm)4.57
Mechanical DataDescargar

Paramétricos

Control MethodCurrent
Duty Cycle(Max)50 %
Frequency(Max)500 kHz
Gate Drive(Typ)0.5 A
Operating Temperature Range0 to 70 C
Package GroupPDIP,SOIC
RatingCatalog
Special FeaturesError Amplifier,Multi-topology,Soft Start,Synchronization Pin
TopologyBoost,Flyback,Forward,Half-Bridge,Push-Pull
UVLO Thresholds On/Off7.7/6.95 V
Vin(Max)40 V
Vin(Min)7 V

Plan ecológico

RoHSObediente

Notas de aplicación

  • Modeling Analysis and Compensation of the Current-Mode Converter
    PDF, 189 Kb, Archivo publicado: sept 5, 1999
    As current-mode conversion increases in popularity several peculiarities associated with fixed-frequency peak-current detecting schemes have surfaced. These include instability above 50% duty cycle a tendency towards subharmonic oscillation non-ideal loop response and an increased sensitivity to noise. This application note attempts to show that the performance of any current-mode converter c
  • U-93 A New Integrated Circuit for Current Mode Control
    PDF, 411 Kb, Archivo publicado: sept 5, 1999
    Advantages of current-mode control over conventional PWM approaches to switching power converters include automatic feed-forward automatic symmetry correction inherent current-limiting simple loop-compensation enhanced load-response and the capability for parallel operation. This application note introduces the first control integrated circuit specifically designed for this topology defines
  • DN-45 UC3846 UC3856 and UCC3806 Push Pull PWM Current Mode Control ICs
    PDF, 27 Kb, Archivo publicado: sept 5, 1999
    The UC3856 is a pin-for-pin-compatible high-performance bipolar version of the industry standard UC3846. It can replace the UC3846 with few circuit modifications and it features increased speed higher gate-drive current and reduced propagation delays. The UCC3806 is a BiCMOS pin-for-pin compatible ultra-low-power version ideal for battery low-power and high-speed applications. The UCC3806

Linea modelo

Clasificación del fabricante

  • Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller