NCP5612 Datasheet, PDF (1/11 Pages) ON Semiconductor – High Efficiency Ultra Small Thinnest White LED Driver

NCP5612
High Efficiency Ultra Small
Thinnest White LED Driver
The NCP5612 product is a dual output LED driver dedicated to the
LCD display backlighting.
The built−in DC/DC converter is based on a high efficient charge
pump structure with operating mode 1x and 1.5x. It provides a peak
87% efficiency together with a 0.2% LED to LED matching.
Features
• Support the Single Wire Serial Link Protocol
• Peak Efficiency 90% with 1x and 1.5x Mode
• Programmable Dimming ICON Function
• Built−in Short Circuit Protection
• Provides 16 steps Current Control
• Controlled Start−up Inrush Current
• Built−in Automatic Open Load Protection
• Tight 0.2% Matching Tolerance
• Accurate 1% Output Current Tolerance
• Smallest Available Package on the Market
• This is a Pb−Free Device
http://onsemi.com
MARKING
DIAGRAM
LLGA12 (2x2 mm)
MU SUFFIX
1
CASE 513AA
YD M G
G
YD = Specific Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
Typical Applications
• Portable Back Light
• Digital Cellular Phone Camera Photo Flash
• LCD and Key Board Simultaneous Drive
LED1 2
LED2 3
I_REF 4
GND C1N
1 12
11 Vbat
10 C1P
9 C2N
V_CC
V_bat
CNTL 5
8 C2P
C5
C3
1 mF/6.3 V 1 mF/6.3 V
GND
V_CC−cpu
I/O pin
MCU
GND
R1
10k
GND
220 nF/10 V 220 nF/10 V
C1
1 mF/10 V
C2
12
C1N
11 _Vbat
6 _NC
5 _CNTL
4 _IREF
10 9
C1P C2N
8
C2P
7
V_out
C4
GND
LWY87S
D1
LED1 ²
D2
1 _GND
LED/ICON ³
U1
NCP5612
LWY87S
NC 6
(Top View)
7 VOUT
ORDERING INFORMATION
Device
Package
Shipping†
NCP5612MUTBG LLGA12 3000/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
Figure 1. Typical Single Wire White LED Driver
© Semiconductor Components Industries, LLC, 2006
1
August, 2006 − Rev. 0
Publication Order Number:
NCP5612/D