Datasheet Texas Instruments LP8556

Manufacturer	Texas Instruments
Series	LP8556

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Parametrics

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

Eco Plan

Application Notes

• Download
  AN-1112 DSBGA Wafer Level Chip Scale Package (Rev. AG)
  PDF, 13.7 Mb, Revision: AG, File published: Aug 12, 2015
• Download
  Increasing Full-Load Efficiency of a Backlight Driver
  PDF, 1.2 Mb, File published: 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.
• Download
  Inductor Selection in Boost Converters for LCD Backlight Applications
  PDF, 764 Kb, File published: 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.
• Download
  Schottky Diode Selection in Asynchronous Boost Converters
  PDF, 491 Kb, File published: Sep 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
• Download
  Power Budget for Backlight Drivers
  PDF, 592 Kb, File published: 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.

Model Line

Manufacturer's Classification

• Semiconductors> Power Management> LED Driver> Backlight