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MP3308 Datasheet(PDF) 12 Page - Monolithic Power Systems

Part # MP3308
Description  Step-up White LED Driver with Dual PWM Dimming Input Control
PDF  13 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP3308 Datasheet(HTML) 12 Page - Monolithic Power Systems

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MP3308 – STEP-UP WHITE LED DRIVER WITH DUAL PWM DIMMING INPUT CONTROL
MP3308 Rev. 1.02
www.MonolithicPower.com
12
7/19/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
TYPICAL APPLICATION CIRCUITS
VIN
EN
PWMB
C1 C2
L1
B0530
D1
C3
160k
R3
10k
R4
NS
C6
LED+
LED-
NC
C5
100k
R11
C4
100
R5
JP1
1
R1
NS
R2
68nF
C8
68nF
VIN Bias Circuit
C9
10nF
C7
100k
R10
100k
R9
PWMA
Bias
10k
R6
10k
R7
10k
R8
PWMOB
8
PGND
2
LED
12
FSET
7
PWMIA
4
SW
1
GND
10
ISET
13
IN
3
EN
6
GND
14
OVP
11
PWMOA
9
PWMIB
5
U1 MP3308
33nF
C10
LED+
900
R12
D2
Bias
Figure 4— Driving 27 WLEDs (9 WLEDs in Series and 3 Strings Paralleled) with 3V-3.3V Input Voltage1
(1) Use additional bias circuit for low input voltage compatibility.



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