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NCP5890
Light Management IC
Dedicated for LCD
Backlighting and Multi-LED
Fun Light Applications
The NCP5890 is part of the Light Management IC (LMIC) family. It
is a fully programmable subsystem that manages multiple illumination
functions integrated into the silicon.
Features
http://onsemi.com
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34 V Output Voltage Capability
Include Three Independent PWM to Control LED Segments
2.7 to 5.5 V Input Voltage Range
90% Peak Efficiency with 4.7 m H / 150 m W Inductor
Gradual Dimming Built ? in
Integrated Ambient Light Sensing Adjusts Backlight Contrast
Built ? in I2C Address Extension
Tight 1% I ? LED Tolerance
True Cut Off Function Minimizes Load Leakage Current in
Shutdown
Ultra Thin 0.5 mm QFN16 Package
This is a PB ? Free Device
1
UQFN16
MU SUFFIX
CASE 523AF
MARKING DIAGRAM
5890
ALYW G
G
5890 = Specific Device Code
A = Assembly Location
L = Wafer Lot
Y = Year
Typical Applications
W
G
= Work Week
= Pb ? Free Package
? Portable Back Light & Keyboard
? Digital Cellular Phone Camera Photo Flash
(Note: Microdot may be in either location)
4
220 k
PWM1
16 R5
D3
GND
SCL
SDA
SFH5711
U3
Log
1 2
+Vbat
C1
4.7 m F/6.3 V 15
1
2
3
GND 4
R3
22 k
R4 GND
5
L1 4.7 m F
U1
NCP5890
Vbat Lx
SCL
SDA Vos
I2CADR
VSB
AMBS PWM2
NSR0240P2
D8
D1
13
D2
470R
12
D4
11
D5
C2
1.0 m F/50 V
GND
1
SCL PWM1
SDA PWM2
I2CADR PWM3
VSB FB
(Top View)
ORDERING INFORMATION
GND
C4
R1
R2
2.2 m F
7
12 k
6
22 k
IREF
IPK
AGND
8
PWM3
FB
PGND
14
10
9
D6
Device Package Shipping ?
NCP5890MUTXG UQFN16 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.
GND
Figure 1. Typical Multiple White LED Application
? Semiconductor Components Industries, LLC, 2009
July, 2009 ? Rev. 1
1
Publication Order Number:
NCP5890/D
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