Datasheet Texas Instruments LP8550TLE/NOPB — Datenblatt

HerstellerTexas Instruments
SerieLP8550
ArtikelnummerLP8550TLE/NOPB
Datasheet Texas Instruments LP8550TLE/NOPB

Hocheffizienter LED-Hintergrundbeleuchtungstreiber für Notebooks 25-DSBGA -30 bis 85

Datenblätter

LP8550 High-Efficiency LED Backlight Driver for Notebooks datasheet
PDF, 1.5 Mb, Revision: E, Datei veröffentlicht: Sep 9, 2014
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Preise

Status

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

Verpackung

Pin25
Package TypeYZR
Industry STD TermDSBGA
JEDEC CodeS-XBGA-N
Package QTY250
CarrierSMALL T&R
Device Marking8550
Width (mm)2.8
Length (mm)3
Thickness (mm).675
Pitch (mm).5
Max Height (mm).675
Mechanical DataHerunterladen

Parameter

Number of Channels6
Duty Cycle(Max)100 %
LED60
LED Current Per Channel50 mA
Operating Temperature Range-30 to 85 C
Package GroupDSBGA
Package Size: mm2:W x LSee datasheet (DSBGA) PKG
Peak Efficiency91 %
RatingCatalog
Shutdown Current(Typ)1 uA
Special FeaturesAdjustable Switch Frequency,Enable/Shutdown,I2C Control,PWM Control
Switching Frequency(Max)1250 kHz
TopologyBoost
TypeInductive
Vin(Max)22 V
Vin(Min)5.5 V
Vout(Max)40 V
Vout(Min)10 V

Öko-Plan

RoHSCompliant

Anwendungshinweise

  • Increasing Full-Load Efficiency of a Backlight Driver
    PDF, 1.2 Mb, Datei veröffentlicht: Jun 5, 2013
    This application report discusses a way to increase the efficiency of the boost converter in a backlightdriver by reducing conduction and AC losses in the inductor, thereby increasing the overall efficiency ofthe backlight driver at higher loads.
  • Power Budget for Backlight Drivers
    PDF, 592 Kb, Datei veröffentlicht: Jun 27, 2013
    This application report discusses the Power Budget of an LED backlight driver. It provides experimental and theoretical methods of calculating different losses associated with LED backlight drivers. It also provides an analytical discussion on behavior of different losses vs brightness levels.

Modellreihe

Serie: LP8550 (3)

Herstellerklassifikation

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