RangeMAX™
I N T E G R A T E D
P R O D U C T S
LX1688
M
ULTIPLE
L
AMP
CCFL C
ONTROLLER
TYPICAL APPLICATION
CN1
1
2
3
4
5
6
7
8
VIN
VIN
GND
GND
VBRITE
RMP_RST
PHA_SYNC
C1
10%
470nF 16V
WWW .
Microsemi
.C
OM
U2
RMP_RST
PHA_SYNC
VDDP
R5
39
4
SI9945AEY
8
7
6
5
1
3
R4
39
2
ENABLE
9
10 VDDSW
1:75
5
3
2
4
1
T1
C13
0.1uF 50V
+
2.2PF
C14
VDDP
PCB
Q2
BC847ALT1
C12
BC847ALT1
Q1
220µ
25V
CN2
1 HV1
2 LV1
R8
100K
R6
82
C15
2.2nF
50V 5%
COG
16V 10%
470nF
2
Analog Ground must
connect to power
ground at this point
only
3
C2
1
AOUT
VSS_P
VSS
BEPOL
BRITE
CPOR
ENABLE
I_R
CPWM1
CPWM2
RMP_RST
BOUT
VDD_P
VDD
VDD_SW
TRI_C
OLSNS
ISNS
ICOMP
VCOMP
VSNS
SLAVE
24
23
22
10K
D1
R7
3
BAW56
2 1
R2
47
VDD
220nF
16V 10%
VDD
4
5
VDDSW
C5
C4
220nF
16V
10%
1K
10nF 16V
C3
10%
6
7
8
9
10
R1
80.6K 1%
RMP_RST
PHA_SYNC
11
12
20
C6
82nF
C7
16V 10%
19
16V 10%
100nF
C8
18
2.2nF
16V 5%
C9
17
4.7nF
C10
16V 10%
16 10nF
16V 10%
C11
15
10nF
16V 10%
14
13
VDD
1
2
D2
3
BAW56
R9
R10
1M
R12
BAV99
C16
D3
3
2 1
2.74K
1%
3.3nF
COG
50V 5%
2.74K
1%
R11
PHA_SYNC FAULT
R3
OPTION
LED1
220
Figure 1
-
Schematic for LX1688 Inverter Module configured as a Master
A
PPLICATIONS
A
PPLICATIONS
Copyright
2001
Rev. 1.1a, 2003-03-21
Microsemi
Integrated Products, Power Management
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
MICROSEMI [ MICROSEMI CORPORATION ]
