© Semiconductor Components Industries, LLC, 2007
August, 2007 - Rev. 1
1 Publication Order Number:
NCP5604/D
NCP5604A, NCP5604B
High Efficiency White LED
Driver
The NCP5604A and NCP5604B products are multiple output LED
drivers dedicated to the display back light. The NCP5604A drives up
to 4 LEDs, the NCP5604B version being dedicated to the three LED
applications.
The two parts share a common built-in DC/DC converter, based on
a charge pump structure, including the new 1.33X mode of operation,
improving the efficiency over the full input battery supply voltage
span over 90%.
Features
•2.7 to 5.5 V Input Voltage Range
•Consistent 85% Efficiency
•1.0 mA Quiescent Supply Current
•All Pins are Fully ESD Protected
•Built-in Short Circuit Protection
•Provides Four Independent LED Drives
•200 kHz Digital Dimming Function
•Unloaded LED Protection
•Short Circuit Current Proof
•Tight 0.5% LED Current Matching
•These are Pb-Free Devices*
Typical Applications
•Portable Back Light
•Digital Cellular Phone Camera Photo Flash
•LCD and Key Board Simultaneously Drive
*For additional information on our Pb-Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques Reference
Manual, SOLDERRM/D.
WQFN16 (3x3)
MT SUFFIX
CASE 488AK
Device Package Shipping†
ORDERING INFORMATION
NCP5604AMTR2G WQFN16
(Pb-Free)
3000/Tape & Reel
MARKING
DIAGRAM
NCPx5604 = Specific Device Code
x = A or B
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb-Free Package
http://onsemi.com
1
16
NCPx
5604
ALYWG
G
1
AGND
PGND
9
10
11
12
4
3
2
1
5 6
7 8
16 15 14 13
I
REF
C1N
EN
C1P
V
bat
V
OUT
C3N
C3P
C2N
C2P
LED4/NC*
LED3
LED2
LED1
PIN CONNECTIONS
(Top View)
NCP5604BMTR2G WQFN16
(Pb-Free)
3000/Tape & Reel
* Pin 5 in not connected in the NCP5604B
†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.
(Note: Microdot may be in either location)
