Datasheet Texas Instruments LP8550TLE/NOPB

High-Efficiency LED Backlight Driver for Notebooks 25-DSBGA -30 to 85

Datasheets

PDF, 1.5 Mb, Revision: E, File published: Sep 9, 2014

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

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	DSBGA
Package Size: mm2:W x L	See datasheet (DSBGA) PKG
Peak Efficiency	91 %
Rating	Catalog
Shutdown Current(Typ)	1 uA
Special Features	Adjustable Switch Frequency,Enable/Shutdown,I2C Control,PWM Control
Switching Frequency(Max)	1250 kHz
Topology	Boost
Type	Inductive
Vin(Max)	22 V
Vin(Min)	5.5 V
Vout(Max)	40 V
Vout(Min)	10 V

RoHS

Compliant

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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.
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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.

Series: LP8550 (3)