6
Schematics
Figure 13.
Power supply
C82
10uF/50V
C83
100nF/50V
C84
22nF/50V
C87
220pF/50V
R75
4,7kΩ
GND
TP21
3V3
R73
10kΩ
R74
3,3kΩ
C86
100nF/50V
V_Ext
R79
2,2kΩ
5V
V_Ext
VCC
8
COMP
4
V
R
ef
6
G
N
D
7
IN
H
3
OUT
1
SYNC
2
FB
5
U7
A5973AD
C76
10uF/50V
C77
100nF/50V
C78
22nF/50V
C81
220pF/50V
R72
4,7kΩ
TP19
3V3
D1
STPS340U
R70
5,6kΩ
R71
3,3kΩ
C80
100nF/50V
V_Ext
3V3
1
2
3
JP34
Header 3x1
5V
3V3
VDD_HV_IO_Main
1
2
3
JP35
Header 3x1
G
N
D
1
Vout
4
Vin
3
U9
LD1117A3V3
5V
L4
60ohm-500mA
C88
100nF/50V
C90
4,7uF/16V
C89
100nF/50V
C91
100nF/50V
C92
4,7uF/16V
GND
LD5
3V3_LR
R76
470Ω
GND
3V3_LR
3V3_LR
1
2
3
JP37
Header 3x1
1
2
3
JP36
Header 3x1
VDD_HV_ADC
3V
3_
Se
l
LD6
3V3
R77
470Ω
LD7
5V
R78
1kΩ
LD8
V_Ext
VDD_HV_IO_Flex
VDD_HV_IO_Main
VDD_HV_IO_Flex
VDD_HV_ADC
1
1
3
3
2
2
S1
SWITCH
F1
Fuse 1.5A
3
2
1
X5
DC-10A
GND
V_Ext
GND
V_Ext
V_Ext
TP18
3V3
TP20
5V
TP22
3V3_LR
TP24
V_Ext
TP25
GND
TP23
VDC_In
VCC
8
COMP
4
V
R
ef
6
G
N
D
7
IN
H
3
OUT
1
SYNC
2
FB
5
U8
A5973AD
SB24
Closed
SB25
Closed
GND
L2
15uH/2A
L3
33uH/1,5A
D2
STPS340U
C79
330uF/10V
C85
330uF/10V
UM2462
-
Rev 3
page 13/25
UM2462
Schematics
