NCP5890 Datasheet, PDF (1/19 Pages) ON Semiconductor – Light Management IC Dedicated for LCD Backlighting and Multi-LED Fun Light Applications

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.
http://onsemi.com
Features
• 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 mH / 150 mW 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
Typical Applications
• Portable Back Light & Keyboard
• Digital Cellular Phone Camera Photo Flash
1
UQFN16
MU SUFFIX
CASE 523AF
MARKING DIAGRAM
5890
ALYWG
G
5890
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
+Vbat
NSR0240P2
C1
L1 4.7 mF
U1
D8
NCP5890
D1
GND ^{4.7 mF/6.3 V} 15 _Vbat
Lx ¹³
SCL
SDA
1 _SCL
2 _SDA
Vos ^{16 R5}
D2
3 _I2CADR
470R _D3
SFH5711
U3
GND
R3
4
VSB
PWM1 ¹²
Log
4
22 k
R4 GND
D4
12
220 k
5 _AMBS
PWM2 ¹¹
D5
C4 2.2 mF
R1
7
12 k
IREF
PWM3 ¹⁰
D6
R2
6
22 k
IPK
FB ⁹
AGND PGND
GND
8 14
GND
Figure 1. Typical Multiple White LED Application
C2 _{1.0 mF/50 V}
GND
1
SCL
SDA
I2CADR
VSB
PWM1
PWM2
PWM3
FB
(Top View)
ORDERING INFORMATION
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.
© Semiconductor Components Industries, LLC, 2009
1
July, 2009 − Rev. 1
Publication Order Number:
NCP5890/D