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U2010B Datasheet, PDF (8/12 Pages) TEMIC Semiconductors – Phase Control Circuit for Current Feedback
U2010B
400
Output Pulse Width
Dtp/DCö=9ms/nF
300
200
100
0
0
10
20
30
95 10339
Cö = ( nF )
Figure 6.
50
Soft Start
40 VS=–13V
V6=V8
30
Reference Point Pin 8
20
10
0
0
95 10340
12
10
8
6
4
2
0
0
95 10341
2.5
5.0
7.5
10
V7 ( V )
Figure 7.
Reference Point Pin 8
1mF
2.2mF 4.7mF
Cö=10mF
Soft Start
VS=–13V
V6=V8
2
4
6
8
10
t(s)
Figure 8.
0
40
80
120
Mains Supply
160 Compensation
Pins 1 and 2 open
Vs=–13V
200
–2 –1
Reference Point
Pin 10
0
1
2
95 10342
I15 ( mA )
Figure 9.
200
Load Current
Detection
160 V6=VRef=V8
VS=–13V
V15=V10=0V
120
Reference Point
Pin 8
80
40
0
–400 –200
0
200 400
95 10343
V(R6) ( mV )
Figure 10.
20
Load Current limitation:
Auto Start Operation
16 VS=–13V
Pin 9 open
Reference Points: V13=Pin 10, V6=Pin 8
12
8
4
0
VT25
0
2
4
VT100
6
8
10
95 10344
V6–8 ( V )
Figure 11.
8 (12)
TELEFUNKEN Semiconductors
Rev. A1, 28-May-96