NCP5604A Datasheet, PDF (1/15 Pages) ON Semiconductor – High Efficiency White LED Driver

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
http://onsemi.com
MARKING
ÇÇÇÇ _{WQFN16 (3x3)}
DIAGRAM
16
1
NCPx
MT SUFFIX
5604
1
CASE 488AK
ALYWG
G
NCPx5604 = Specific Device Code
x = A or B
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
16 15 14 13
V_bat 1
12 V_OUT
EN 2
11 C1P
I_REF 3
10 C1N
AGND 4
9 PGND
56 78
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques Reference
Manual, SOLDERRM/D.
* Pin 5 in not connected in the NCP5604B
(Top View)
ORDERING INFORMATION
Device
NCP5604AMTR2G
Package Shipping†
WQFN16 3000/Tape & Reel
(Pb−Free)
NCP5604BMTR2G WQFN16 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.
© Semiconductor Components Industries, LLC, 2006
1
March, 2006 − Rev. 0
Publication Order Number:
NCP5604/D