Datasheet Texas Instruments LP8557

Manufacturer	Texas Instruments
Series	LP8557

High-Efficiency LED Backlight Driver for Tablets

Datasheets

PDF, 1.7 Mb, Revision: B, File published: Dec 18, 2015

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	LP8557AYFQR	LP8557AYFQT	LP8557IAYFQR	LP8557IAYFQT
Lifecycle Status	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)
Manufacture's Sample Availability	No	No	Yes	Yes

	LP8557AYFQR	LP8557AYFQT	LP8557IAYFQR	LP8557IAYFQT
N	1	2	3	4
Pin	16	16	16	16
Package Type	YFQ	YFQ	YFQ	YFQ
Industry STD Term	DSBGA	DSBGA	DSBGA	DSBGA
JEDEC Code	S-XBGA-N	S-XBGA-N	S-XBGA-N	S-XBGA-N
Package QTY	3000	250	3000	250
Carrier	LARGE T&R	SMALL T&R	LARGE T&R	SMALL T&R
Device Marking	D40	D40	D41	D41
Thickness (mm)	.42	.42	.42	.42
Pitch (mm)	.4	.4	.4	.4
Max Height (mm)	.675	.675	.675	.675
Mechanical Data	Download	Download	Download	Download

Parameters / Models	LP8557AYFQR	LP8557AYFQT	LP8557IAYFQR	LP8557IAYFQT
Number of Channels	6	6	6	6
Duty Cycle(Max), %	100	100	100	100
LED	48	48	48	48
LED Current Per Channel, mA	25	25	25	25
Operating Temperature Range, C	-30 to 85	-30 to 85	-30 to 85	-30 to 85
Package Group	DSBGA	DSBGA	DSBGA	DSBGA
Package Size: mm2:W x L, PKG	See datasheet (DSBGA)	See datasheet (DSBGA)	See datasheet (DSBGA)	See datasheet (DSBGA)
Peak Efficiency, %	93	93	93	93
Rating	Catalog	Catalog	Catalog	Catalog
Shutdown Current(Typ), uA	0.001	0.001	0.001	0.001
Special Features	CABC,Edge Rate Control	CABC,Edge Rate Control	CABC,Edge Rate Control	CABC,Edge Rate Control
Switching Frequency(Max), kHz	1000	1000	1000	1000
Topology	Boost	Boost	Boost	Boost
Type	Inductive	Inductive	Inductive	Inductive
Vin(Max), V	5.5	5.5	5.5	5.5
Vin(Min), V	2.7	2.7	2.7	2.7
Vout(Max), V	28	28	28	28
Vout(Min), V	7	7	7	7

	LP8557AYFQR	LP8557AYFQT	LP8557IAYFQR	LP8557IAYFQT
RoHS	Compliant	Compliant	Compliant	Compliant

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Series: LP8557 (4)