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MP3389 数据表(PDF) 14 Page - Monolithic Power Systems

部件名 MP3389
功能描述  12?밪tring, Step-up White LED Driver
PDF  16 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP3389 数据表(HTML) 14 Page - Monolithic Power Systems

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MP3389—12-STRING WHITE LED DRIVER WITH STEP-UP CONTROLLER
MP3389 Rev. 1.04
www.MonolithicPower.com
14
3/27/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
TYPICAL APPLICATION CIRCUIT
NC
C2
DIMMING
EN
GND
100k
R8
C18
60.4k
R16
0
R11
NC
C10
5.6nF
C17
L1
0.05
R24
0
R36
0
R37
0
R33
0
R34
0
R30
0
R31
0
R27
0
R28
NC
R25
NC
C12
B180
D1
10k
R53
LED11
LED8
LED10
LED7
LED9
LED5
LED2
LED4
LED1
LED3
LED+
C1
C3
191k
R13
0
R15
0
R38
0
R29
0
R32
0
R35
NC
R26
C13
LED12
LED6
VIN
20k
R5
20k
R4
8V-28V
F1
NC
C6
0
R22
10k
R54
C9
10
R20
100pF
C14
14S 12P 20mA
2k
R2
2k
R1
AM4499P
M1
100nF
C4
C16
C15
M2 AM4490N
432k
R51
LED11
12
DBRT
6
NC
1
COMP
4
LED6
17
LED3
20
OVP
23
ISENSE
24
LED10
13
LED9
14
LED12
11
ISET
9
BOSC
10
GND
7
EN
5
OSC
8
VIN
2
VCC
3
LED8
15
LED7
16
LED5
18
LED4
19
LED2
21
LED1
22
PGND
25
NC
28
VFAULT
27
GATE
26
MP3389
U1
NET00016
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
Figure 7—Drive 14 LEDs in Series, 12 Strings 20mA/string for Monitor Backlighting
NC
C2
DIMMING
EN
GND
100k
R8
C18
60.4k
R16
0
R11
NC
C10
5.6nF
C17
L1
0.05
R24
0
R36
0
R37
0
R33
0
R34
0
R30
0
R31
0
R27
0
R28
NC
R25
NC
C12
B180
D1
10k
R53
LED2
LED4
LED1
LED3
LED+
C1
C3
191k
R13
0
R15
0
R38
0
R29
0
R32
0
R35
NC
R26
C13
VIN
20k
R5
20k
R4
8V-28V
F1
NC
C6
0
R22
10k
R54
C9
10
R20
100pF
C14
18S 4P 60mA
2k
R2
2k
R1
AM4499P
M1
100nF
C4
C16
C15
M2 AM4490N
432k
R51
LED11
12
DBRT
6
NC
1
COMP
4
LED6
17
LED3
20
OVP
23
ISENSE
24
LED10
13
LED9
14
LED12
11
ISET
9
BOSC
10
GND
7
EN
5
OSC
8
VIN
2
VCC
3
LED8
15
LED7
16
LED5
18
LED4
19
LED2
21
LED1
22
PGND
25
NC
28
VFAULT
27
GATE
26
MP3389
U1
NET00016
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
M3
M4
M5
M6
M3-M6: AM3490N 100V/1A TSOP6
0
R39
NC
R40
VIN
GND
Figure 8 – Drive 18LEDs in Series, 4 strings 60mA/string
Note: For Vin>15V application, use R139 and R40(10k
Ω) divider to make a 15V bias voltage for M3-M6.



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