Rainbow Electronics MAX8759 - Manual (Page 12)

MAX8759
Low-Cost, SMBus, CCFL Backlight Controller
12 ______________________________________________________________________________________
N2A
19
24
21 21
C7
0.1 µF
C8
0.47
µF
C1
10
µF
25V
C10
0.1
µF
C11
0.1
µF
C13
6.8nF
C6
68nF
C5
10nF
C4
10pF
3kV
C2
2.2 µF
C3
2.2 µF
T1
1:110
R1
150
Ω
1%
CCFL
R2
3.9k
Ω
C14
0.22
µF
FDC6561AN
FDC6561AN
C9
0.47 µF
C12
1
µF
C15
0.1 µF
R3
169k Ω
1%
V CC
27
11
28
2
3
7
8
9
5
6
BATT
GND
DEL
V CC
SDA
SCL
PWMI
PWMO
FREQ
VALS
ALS
18
17
16
26
20
23
22
25
12
13
V CC
14
15
10
4
PGND1
BST2
V DD
BST1
GH1
LX1
LX2
GL1
PGND2
GL2
GH2
IFB1
IFB2
VFB
ISEC
COMP
TFLT
N2B
N1A N1B
PWM INPUT
INPUT VOLTAGE
SMB_DATA
SMB_CLOCK
F1
2A
ALS SUPPLY
ALS OUTPUT
7.5V TO 24V
MAX8759
Figure 1. Typical MAX8759 Single-Lamp Operating Circuit