Power Schematic

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B B
A A
Sunflower Solar Power Manager 5V
Henry-SH
V1.0
2018/1/19
11:03:41
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SKU:
DFR0559
VIN
4
CHRG*
7
DONE*
6
FB
8
BAT
5
TEMP
1
ISET
2
3
CN3065
GND
U1
AO3401M1
SK34
D1
10K
R2
GND
VSOLAR
VUSB
GND
10k
R1
GND
2K
R3
4.7uF
C1
1nF
C10
GND
VUSB
1nF
C11
GND
USB type-A female OUTmicro USB type-A female IN
VBUS
1
ID
4
SG
6
D+
3
D-
2
GND
5
SG
6
U3
VBUS
1
SG
5
D+
3
D-
2
GND
4
SG
5
U4
VOUT
1K
R4
BT1
VBAT
1
2
KF396-2P
P1
VBAT
GND
100nF
C3
Battery input
900mA Max charge
Maximum charge current
Ra
I_CHG=1800/Ra=900mA
Solar panel input
CN3065 solar power charge
MT3608 DC-DC boost 5V
4.7uH 3.2A
L1
1K
R9
1
2
KF396-2P
P2
VSOLAR
GND
USB and headers I/O
IN
5
2
EN
4
SW
1
FB
3
NC
6
MT3608
GND
U5
150K
R6
Rc
VBAT
20K
R8
SS34
D2
GND
VOUT=0.6*(1+Rb/Rc)=5.1V
Rb
100nF
C6
5V 1A
VOUT
VOUT
GND_VOUT
10uF
C2
AO3400
M2
47uF
25V
C7
EN_VOUT
GND
1
2
3
P4
1
2
3
P5
1
2
3
P3
IN
5
EN
4
OUT
1
ISET
3
GND
2
SY6280
U2
6.8K
R7
Rd
Output indicator
100nF
C4
10uF
C5
1uF
C9
EN_VOUT
1M
R10
GND_VOUT
AO3400
M3
10K
R5
GND
GND
Over current threshold: 6800/Rd=1A
YELLOW
LD4
YELLOW
LD1
REDLD2
GREENLD3
GREEN
LD5
GND header 5V OUT header ON/OFF header
VBAT