Datasheet Texas Instruments LP8556SQE-E08/NOPB — Datenblatt

Hersteller	Texas Instruments
Serie	LP8556
Artikelnummer	LP8556SQE-E08/NOPB

6-Kanal-LED-Hintergrundbeleuchtungstreiber mit hoher Effizienz und Effizienz 24-WQFN -30 bis 85

Datenblätter

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PDF, 1.2 Mb, Revision: I, Datei veröffentlicht: Mar 22, 2016

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Preise

Status

Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes

Verpackung

Pin	24
Package Type	RTW
Industry STD Term	WQFN
JEDEC Code	S-PQFP-N
Package QTY	250
Carrier	SMALL T&R
Device Marking	L8556E8
Width (mm)	4
Length (mm)	4
Thickness (mm)	.75
Pitch (mm)	.5
Max Height (mm)	.8
Mechanical Data	Herunterladen

Parameter

Number of Channels	6
Duty Cycle(Max)	100 %
LED	60
LED Current Per Channel	50 mA
Operating Temperature Range	-30 to 85 C
Package Group	WQFN
Package Size: mm2:W x L	24WQFN: 16 mm2: 4 x 4(WQFN) PKG
Peak Efficiency	95 %
Rating	Catalog
Shutdown Current(Typ)	0.1 uA
Special Features	I2C Control
Switching Frequency(Max)	1250 kHz
Topology	Boost
Type	Inductive
Vin(Max)	20 V
Vin(Min)	2.7 V
Vout(Max)	48 V
Vout(Min)	7 V

Öko-Plan

RoHS

Compliant

Design Kits und Evaluierungsmodule

Evaluation Modules & Boards: LP8556TM-EVM
LP8556TM-EVM
Lifecycle Status: Active (Recommended for new designs)
- Herunterladen
Evaluation Modules & Boards: LP8556SQ-EVM
LP8556SQ-EVM
Lifecycle Status: Active (Recommended for new designs)
- Herunterladen

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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.
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Inductor Selection in Boost Converters for LCD Backlight Applications
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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.
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Schottky Diode Selection in Asynchronous Boost Converters
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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
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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: LP8556 (23)

LP8556SQ-E00/NOPB LP8556SQ-E08/NOPB LP8556SQ-E09/NOPB LP8556SQE-E00/NOPB LP8556SQE-E08/NOPB LP8556SQE-E09/NOPB LP8556SQX-E00/NOPB LP8556SQX-E08/NOPB LP8556SQX-E09/NOPB LP8556TME-E02/NOPB LP8556TME-E03/NOPB LP8556TME-E04/NOPB LP8556TME-E05/NOPB LP8556TME-E06/NOPB LP8556TME-E09/NOPB LP8556TME-E11/NOPB LP8556TMX-E02/NOPB LP8556TMX-E03/NOPB LP8556TMX-E04/NOPB LP8556TMX-E05/NOPB LP8556TMX-E06/NOPB LP8556TMX-E09/NOPB LP8556TMX-E11/NOPB

Herstellerklassifikation

Semiconductors > Power Management > LED Driver > Backlight LED Driver

Andere Namen:

LP8556SQEE08/NOPB, LP8556SQE E08/NOPB