LX1688 Ver la hoja de datos (PDF) - Microsemi Corporation
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LX1688 Datasheet PDF : 16 Pages
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RangeMAX™
LX1688
TM
®
Multiple Lamp CCFL Controller
PRODUCTION DATA SHEET
APPLICATION CIRCUITS
CN1
1 VIN
2 VIN
3 GND
4 GND
5
6 VBRITE
7 RMP_RST
8 PHA_SYNC
9 ENABLE
10 VDDSW
C1
10%
470nF 16V
RMP_RST
PHA_SYNC
R4 39
VDDP
R5 39
U2
SI9945AEY
8
2
7
6
5
4
13
C2 1
16V 10%
AOUT
24
BOUT
470nF 2
23 R2 47
Analog Ground must
VSS_P
3
VDD_P
22
VDD
connect to power
ground at this point
only
VDD
10nF 16V
10% C3
R1
80.6K 1%
VSS
4
BEPOL
5
BRITE
6
CPOR
7
ENABLE
8
I_R
9
CPWM1
VDD
VDD_SW
TRI_C
OLSNS
ISNS
ICOMP
VCOMP
VDDSW
C5
220nF
20
C6
82nF
16V 10%
19
16V 10%
C7
16V 10%
18
C8
100nF
2.2nF
17
16V 5% C9
4.7nF
16
C10
10nF
16V 10%
16V 10% C11
C4
220nF
16V
10%
10
CPWM2
15
VSNS
10nF
16V 10%
11
14
RMP_RST
RMP_RST SLAVE
PHA_SYNC
12
13
PHA_SYNC FAULT
R3
220
LED1
OPTION
T1
1:75
35
C13
0.1uF 50V
24
1
VDDP C14
C12
+
BC847ALT1
Q1
Q2
BC847ALT1
2.2PF
PCB
CN2
1 HV1
2 LV1
220µ
25V
R6
82
R8
100K
21
R7
10K
D1
3 BAW56
C15
2.2nF
50V 5%
COG
VDD
D2
1
23
R9
1K
BAW56
R10
1M
D3 3
BAV99
21
R11
2.74K
1%
R12
2.74K
1%
C16
3.3nF
COG
50V 5%
Figure 1 – Schematic for LX1688 Inverter Module Configured as Master
Copyright © 2001
Rev. 1.2, 2006-03-09
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
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