UM0527
General description
13/66
1.1.8 Charger
AC/DC
Figure 6.
AC/DC battery charger
AC/
DC
BATTERY
CHARGER
GND
R
9
4
10k
C
101
1000uF/50V
GND
D3
8
STPS8
H
1
0
0
D
D1
6
BAS1
6
GND
C9
9
1nF
500V
R6
4
10R
R1
6
10k
GND
C2
0
100nF
GND
L1
1
10uH
/3A
C1
9
100nF
GND
+
VOUT
GND
1
4
12
10
6
7
3
2
9
`
8
11
13
T1
T
I50/30v02
R2
0
100k
VDD
F1
1,25A
C9
6
100nFX2
VF
F
3
VDD
8
ZCD
5
VFB
1
COMP
2
GD
7
CS
4
GND
6
U
1
1
L
6565
GND
GND
R1
3
4
16k
R1
3
2
750k
R1
3
5
43k
R9
5
10k
GND
R138
33k
V
B
A
T
M
A
X
+
28.2V
6
1
8
7
2
3
U1
2
TL431CD
R
136
39k
R1
1
5
3.3k
R5
7
22k
GND
R1
3
9
5.6k
R1
4
0
180R
Q1
2
BC8
5
7
B
O
v
er
volt
age
Pr
ot
ec
tion
32V
TH1
TYN6
0
8
GND
2
1
3
4
BR1
KBU6
0
5
C
o
ntrol
v
oltage
output
C
u
rrent
M
ode
C
h
arging
V
o
ltage
M
ode
C
h
arging
Pout(max)=50W
C
h
arger
O
utput
VBAT
R1
2
9
10R
GND
GND
Q1
1
STP5NK
90Z
R
1
33
33R
R1
5
10k
GND
CHOF
F
V
B
A
T
M
IN
+
26.8V
R
123
100k
D3
7
S
T
T
H
1R
06
R1
2
7
120k
3
W
C9
7
680pF1600V
AC_
2
AC_
1
Q1
0
STP8
0
PF5
5
U6
PDTC1
1
4
ET
+
VOUT
ZD3
B
Z
X
8
4C
12
C1
0
0
100uF/50V
GND
RAD1
1
H
eat
si
nk
2A
R1
3
1
750k
R
130
750k
GND
R6
3
1
0
R
R
124
100k
R
125
100k
R1
2
6
100k
GND
C9
8
47uF/50V
C2
1
100nF
GND
GND
C
102
1000uF/50V
R
122
100k
GND
R
6
5
10R
R
128
120k3W
RAD1
2
H
eat
si
nk
R1
3
7
0.68R2W
L9
10uH
/3A
L1
0
10uH
/3A
C1
8
100nF
C4
9
1nF
C7
9
10nF
C9
5
47nF
X
2
120V
ac
M
o
del
230V
ac
M
o
del
CHOF
F
AC_
1
AC_
2
D1
5
BAS1
6
D1
7
BAS1
6
Q9
STP8
0
PF5
5
VBAT
GND
+
VOUT
GND
+
VOUT
VDD
VDD
R5
2
4.7R
3W
C4
4
47nF
X
2