Owner manual

MAX1530/MAX1531
Multiple-Output Power-Supply Controllers for
LCD Monitors
14 ______________________________________________________________________________________
MAX1531
N1-A
N1-B
V
IN
= 12V
VL
ONL2
ONL3
ONL4
ONL5
FREQ
SEQ
RESET
EN IN
BST
DH
LX
DL
PGND
DRV1
FBL1
FB
COMP
DRV3
FBL3
ILIM
DRV5
FBL5FBL4
DRV4
CSH
CSL
FBL2
DRV2
RSTIN
30
28
26
25
12
16
17
18
19
1
2
6
5
8
7
9
10
15
4
3
13
14
11
31
32
20
21
22
23
27
24
29
AGND
C3
4.7µF
25V
R4
20.0kΩ
1%
D1
R5*
10Ω
C1
1µF
C5
0.1µF
C4
1µF
C10
470pF
C9
10µF
6.3V
C7
22µF
6.3V
C23
150pF
C22
2.2µF
R11
100kΩ
R9
10kΩ
1%
R8
6.8kΩ
R10
10kΩ
1%
R14
121kΩ
1%
R15
68.1kΩ
1%
R16
43.2kΩ
1%
R17
6.8kΩ
R18
68.1kΩ
1%
R20
0.5Ω
1%
R22
75kΩ
1%
R19
10kΩ
1%
R23
10.7kΩ
1%
C11
0.1µF
C20
0.1µF
C21
2.2µF
C13
4.7µF
16V
C12
0.47µF
R29
48.7kΩ
1%
R28
90.9kΩ
1%
R25
200kΩ
1%
R26
10.5kΩ
1%
R27
6.8kΩ
C19
0.47µF
*OPTIONAL
C16
0.47µF
C15
0.1µF
C8
0.1µF
C6
0.1µF
C14
0.1µF
C18
0.1µF
C17
0.1µF
Q5
Q3
R24
6.8kΩ
R13
150kΩ
R12
300kΩ
R2
10.7kΩ
1%
R1
17.8kΩ
1%
L1
10µH
R7
100kΩ
R3
124kΩ
1%
R12
1Ω
R6*
10Ω
D2*
C2, OPEN
Q6
Q4
Q2
Q1
D3
D5
IN
VL
VL
V
IN
V
IN
V
OUT
3.3V/1.5A
LX
LX
V
L
5V/30mA
V
LOGIC
2.5V/500mA
V
GOFF
-9V/50mA
V
GON
25V/20mA
V
GAMMA
9.7V/50mA
V
SOURCE
10V/500mA
IN
V
IN
D6
D4
R21
1.5kΩ
Figure 1. MAX1531 Standard Application Circuit