User manual

Page 8
Page 9
2
3
5
4
1
VCC-SYS VCC-3.3
E3
10uF
E4
10uF
R26
2K2
3
1
2
GND
Vin
Vout
REG1
LD29080DT33
VCC-BAT
D1
PMEG3010ER
R44
3K9
Charging Current approx. 250mA
R39
4K7
VCC-3.3
E7
10uF
C40
2.2uF
R34
4K7
R6
4K7
VCC-BAT
VSENSE
VCC-SYS
VCC-SYS
R43
10K
R37
10K
R36
10K
VCC-3.3
STAT
R38
10K
R45
1K
VCC-3.3
E5
10uF
R35
10K
VCC-3.3
R49
4K7
+
-
CN1
BATT CONN
M1
DMP2160UW
STAT
VSS
VBAT VDD
PROG
U5
MCP73832
Q4
BC846
Q5
BC846
C28
10nF
FP2
FERRITE
1
2
3
4
5
GND
ID
D+
D-
VBUS
CN3
USB MINIB
VCC-USB
C29
2.2uF
VCC-3.3
R46
22K
E10
10uF
R47
120K
VCC-1.8
VCC-1.8
R50
12K1
1
2
3
5
4
Vin
GND
EN ADJ
Vout
U3
AP7331-ADJ
DATA BUS
LD2
CHARGE
LD1
POWER
VCC-BAT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
HDR1
M1X26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
HDR2
M1X26
VCC-3.3 VCC-3.3
VCC-SYS
VCC-1.8VREF-1.8
FP3
VCC-3.3AVCC
FP4
C25
100nF
C30
2.2uF
C34
100nF
C36
2.2uF
Figure 1-3: Power supply schematics