Figure 9: Blanking Time and Current Limitation

SC12110

t

ID

t

ID

tb

IDlim

IDlim

Figure 10: Typical AC/DC Adapter

SC12130

U1

VIPer31

2.6V

-

+

VOLTAGE CONTROL

CURRENT

CONTROL

SOURCE

DRAIN

DSENSE

CSENSE

CREF

COMP

FB

VCC

VDD

OSC

111

5

7

4

9

3

2

8

6

GND

10

R11

1.3

R9

470

R6

10k

R4

22k

R8

8.2k

C8

4.7uF

16V

C7

10uF

35V

R10

2.7k

R3

27k

D2

1N4148

R2

22

T2

C2

10uF

400V

BR1

1A/600V

-+

T1

F1

FUSE

R1

CTN

D1

STPS1100U

C3

330uF

25V

R5

680k

R7

680k

C10

470nF

C9

2.7nF

C5

2.2n

C4

1nF

C1

100nF

C6

2.2nF

L

N

IOUT

GND

Figure 11: Typical Output Characteristics

SC12120

0.8

1

0.6

0.4

0.2

0

510

15

Iout

(A)

Uout

(V)

Short circuit or

Low voltage

operation

Constant current

operation (+/-2.5%)

Constant voltage

operation (+/-7%)

Iout vs Uout curves for Vin = 100, 200, 300, 400 VDC, Ta = 25

°C

VIPer31SP

9/16