Datasheet Texas Instruments LP8557IAYFQT — Ficha de datos

FabricanteTexas Instruments
SerieLP8557
Numero de parteLP8557IAYFQT
Datasheet Texas Instruments LP8557IAYFQT

Controlador de retroiluminación LED de alta eficiencia para tabletas 16-DSBGA -30 a 85

Hojas de datos

LP8557 High-Efficiency LED Backlight Driver For Tablets datasheet
PDF, 1.7 Mb, Revisión: B, Archivo publicado: dic 18, 2015
Extracto del documento

Precios

Estado

Estado del ciclo de vidaActivo (Recomendado para nuevos diseños)
Disponibilidad de muestra del fabricanteNo

Embalaje

Pin16
Package TypeYFQ
Industry STD TermDSBGA
JEDEC CodeS-XBGA-N
Package QTY250
CarrierSMALL T&R
Device MarkingD41
Thickness (mm).42
Pitch (mm).4
Max Height (mm).675
Mechanical DataDescargar

Paramétricos

Number of Channels6
Duty Cycle(Max)100 %
LED48
LED Current Per Channel25 mA
Operating Temperature Range-30 to 85 C
Package GroupDSBGA
Package Size: mm2:W x LSee datasheet (DSBGA) PKG
Peak Efficiency93 %
RatingCatalog
Shutdown Current(Typ)0.001 uA
Special FeaturesCABC,Edge Rate Control
Switching Frequency(Max)1000 kHz
TopologyBoost
TypeInductive
Vin(Max)5.5 V
Vin(Min)2.7 V
Vout(Max)28 V
Vout(Min)7 V

Plan ecológico

RoHSObediente

Kits de diseño y Módulos de evaluación

  • Evaluation Modules & Boards: LP8557IEVM
    Evaluation Module for LP8557 High Efficiency White LED Backlight Driver with I2C Control
    Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)
  • Evaluation Modules & Boards: LP8557EVM
    Evaluation Module for LP8557 6-channel High-Efficiency LCD Backlight Driver
    Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)

Notas de aplicación

  • Schottky Diode Selection in Asynchronous Boost Converters
    PDF, 491 Kb, Archivo publicado: sept 6, 2016
    Asynchronous boost converters require a Schottky diode as the rectifying element due to the diode's lowforward voltage and fast turn-on time. Because of these characteristics asynchronous boost converterscan have as good as, or better efficiency, than synchronous boost converters. This is especially true whenthe boost conversion ratios (VOUT/VIN) are high, and the Schottky diode conduction t
  • Inductor Selection in Boost Converters for LCD Backlight Applications
    PDF, 764 Kb, Archivo publicado: oct 24, 2016
    White LED drivers for LCD back-light applications are often designed for battery-powered devices. This makes circuit size and efficiency crucial. Because of this, selecting the optimal inductor is one of the mostimportant aspects of the design. This application note discusses the important parameters of the inductorand how to select the right inductor for the application.

Linea modelo

Clasificación del fabricante

  • Semiconductors > Power Management > LED Driver > Backlight LED Driver