5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
LED Green
8. Power
3.3v regulator
Sys-boot select button
Hard - Reset button
RTC Backup Battery
0.5A 12V Regulator for CCFL inverter
6-48v input regulator
User button
SD card & LCD power supply
Install D11 when U13 is
instaleld (6-48V ext power
supply).
Install F11 when U13 is NC
(5V ext power supply).
Main Power LED
Assembly Option
Assembly
Option
With J22
Power In
L_IN
PW R_IN4
PW R_IN2
IS
12V_1
12V_2
BST
CCFL_GND
CCFL_GND
PW R_IN3
PW R_IN2
PW R_IN1
48VRegOut
PW R_IN1
VCC_5V_VBAT
VCC_5V_LCD_BL
VCC12_INV_Z
VCC_3V3
VCC_5V_VBAT
VCC12_INV_Z
V_BATT
PW R_IN4
VCC_IN
VCC_IN
PW R_IN5
VIO
VCC_5V_LCD_BL
VCC12_INV
VCC_5V
VCC_5V
VCC_5V
VCC_5V
VCC_5V
VCC_SD
VCC_LCD
VCC_3V3
VIO
VCC_3V3
VIO
RESET_IN_N
2
SYS_BOOT5
2
RTC_BACKUP
2
USR_BUTTON
2
LCD_BCKLT_EN
4
CPT_INT_VIO
2
LCD_BCKLT_EN
2
CPT_INT 6
LCD_BCKLT_EN_33
2
Title
Size
Document Number
Rev
Date:
Sheet
of
Approved By:
Designer:
Project
VAR-OM35CustomBoard v2.21
2.3
8. Power
A3
8
8
Thursday, August 18, 2011
<Designer>
<Approved By>
VAR-OM3XCustomBoard
Title
Size
Document Number
Rev
Date:
Sheet
of
Approved By:
Designer:
Project
VAR-OM35CustomBoard v2.21
2.3
8. Power
A3
8
8
Thursday, August 18, 2011
<Designer>
<Approved By>
VAR-OM3XCustomBoard
Title
Size
Document Number
Rev
Date:
Sheet
of
Approved By:
Designer:
Project
VAR-OM35CustomBoard v2.21
2.3
8. Power
A3
8
8
Thursday, August 18, 2011
<Designer>
<Approved By>
VAR-OM3XCustomBoard
SW 1
TL3304AF260QJ
SW 1
TL3304AF260QJ
J17
S6B-PH-K-S(LF)(SN)
J17
S6B-PH-K-S(LF)(SN)
1
2
3
4
5
6
C1
10uF
C1
10uF
C47
0.022uF
C47
0.022uF
C46
100nF
C46
100nF
SW 2
TL3304AF260QJ
SW 2
TL3304AF260QJ
C4
10nF
C4
10nF
R78
5.11K 1%
R78
5.11K 1%
L7
2.7uH
L7
2.7uH
D12
rb050l-40
D12
rb050l-40
+
C85
47uF
+
C85
47uF
1
2
R74 0R
<ASSY>
R74 0R
<ASSY>
R6
604
R6
604
C43
10nF
C43
10nF
R9
1.74K
R9
1.74K
D11 RSX501L-20
D11 RSX501L-20
R75
8.45K
R75
8.45K
+
C38
100uF
+
C38
100uF
1
2
C45
10uF
C45
10uF
D13
D-Schottky
d_CRS08
D13
D-Schottky
d_CRS08
R1
1K
R1
1K
R8
100K
R8
100K
SW 4
ON/OFF SW 4
ON/OFF
OUT2
3
IN
2
OUT1
1
R80
1.65K
R80
1.65K
U21
MIC2076-2YM
U21
MIC2076-2YM
ENA
1
OUTA
8
GND
6
IN
7
OUTB
5
ENB
4
FLGA
2
FLGB
3
R104
10K
R104
10K
+
C65
47uF
+
C65
47uF
1
2
L6
12uH
L6
12uH
1
2
U2
LM3478
U2
LM3478
Isen
1
COMP
2
F
B
3
A
G
N
D
4
Vin
8
F
A
/S
D
7
DR
6
P
G
N
D
5
SW 3
TL3304AF260QJ
SW 3
TL3304AF260QJ
L4
DR127-6R8
L4
DR127-6R8
1
2
C52
1uF
C52
1uF
R94
10K
R94
10K
R103
10K
R103
10K
C40
10nF
C40
10nF
R2
2.2K
R2
2.2K
C55
10uF
C55
10uF
R70
0R
R70
0R
C36
0.15uF
C36
0.15uF
FB2
MI1812K121R-10
FB2
MI1812K121R-10
1
2
C42
10uF
C42
10uF
R76
1K
R76
1K
L5
CPFC85NP-W H07
L5
CPFC85NP-W H07
2
1
4
3
U17
lm2831
U17
lm2831
VIN
5
FB
3
GND
2
EN
4
SW
1
F1
3A
<ASSY>
F1
3A
<ASSY>
J2
DC-JACK
J2
DC-JACK
2
1
3
FB3
MI1812K121R-10
FB3
MI1812K121R-10
1
2
R7
10K
R7
10K
C32
10uF
C32
10uF
L3
CPFC85NP-W H07
L3
CPFC85NP-W H07
2
1
4
3
C30
1uF
C30
1uF
C81
100nF
C81
100nF
+
C62
47uF
+
C62
47uF
1
2
D1
D1
R79
3.16k 1%
R79
3.16k 1%
C37
100pF
C37
100pF
U3
N
-C
H
-
S
I4
4
4
6
D
Y
U3
N
-C
H
-
S
I4
4
4
6
D
Y
S
1
S
2
S
3
G
4
D
8
D
7
D
6
D
5
C2
100nF
C2
100nF
VCCA <= VCCB
U26
TXS0102DCTR
VCCA <= VCCB
U26
TXS0102DCTR
B2
1
GND
2
VCCA
3
A2
4
A1
5
OE
6
VCCB
7
B1
8
J18
3V BT SOCKET
J18
3V BT SOCKET
2
1
C53
1uF
C53
1uF
C56
10uF
C56
10uF
R69 0R
<ASSY>
R69 0R
<ASSY>
R4
12.7K
R4
12.7K
C31
100nF
C31
100nF
R81
49.9k 1%
R81
49.9k 1%
R3
1K
R3
1K
R73
0.068R
R73
0.068R
FB1
MI1812K121R-10
FB1
MI1812K121R-10
1
2
Q2
NTR3161N
Q2
NTR3161N
1
3
2
R93
10K
R93
10K
R95
45.3K
R95
45.3K
U13
DC-DC STEP DOW N 1.5A LM25575
U13
DC-DC STEP DOW N 1.5A LM25575
IS
13
RAMP
8
BST
16
VCC
1
COMP
5
FB
6
PGND
12
AGND
9
OUT
11
SYNC
4
SS
10
SD
2
PRE
15
RT
7
SW
14
VIN
3
TPD
17
D2
40V 2A
D2
40V 2A
+
C68
100uF
+
C68
100uF
1
2
L1
12uH
L1
12uH
1
2
J22
PC 1727010
J22
PC 1727010
1
2
