viper31sp STMicroelectronics, viper31sp Datasheet - Page 9

• Manufacturer Part Number: viper31sp
• Description: Battery Charger Primary I.c.
• Manufacturer: STMicroelectronics

Figure 9: Blanking Time and Current Limitation
Figure 10: Typical AC/DC Adapter
IDlim
IDlim
ID
ID
tb
L
N
C7
10uF
35V
R3
27k
R10
2.7k
R1
CTN
F1
FUSE
C8
4.7uF
16V
R8
8.2k
C9
2.7nF
C1
100nF
D2
1N4148
6
8
2
U1
VIPer31
VDD
OSC
VCC
3
VOLTAGE CONTROL
2.6V
FB
T1
R6
10k
10
GND
SC12110
-
+
2.2n
COMP
R2
22
C5
9
CREF
t
t
-
C4
1nF
DSENSE
4
CURRENT
CONTROL
CSENSE
1
C10
470nF
+
BR1
1A/600V
R4
22k
7
Figure 11: Typical Output Characteristics
Iout
(A)
R9
470
SOURCE
0.8
0.6
0.4
0.2
1
0
DRAIN
C2
10uF
400V
Short circuit or
11
5
Iout vs Uout curves for Vin = 100, 200, 300, 400 VDC, Ta = 25 C
Low voltage
operation
R11
1.3
5
R5
680k
R7
680k
T2
operation (+/-2.5%)
SC12130
Constant current
STPS1100U
D1
10
C6
2.2nF
C3
330uF
25V
operation (+/-7%)
Constant voltage
IOUT
GND
15
VIPer31SP
Uout
(V)
SC12120
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