Typical Performance Characteristics
R
T
(K
Ω
)
50
%
50
C
C
20
5nF
30
20
C
500pF
C
1nF
C
10nF
5nF
C
2nF
10
10
C
200pF
5
C
10nF
5
C
3
100pF
2
1
10
500
VCC = 15
O
25
T
C
20
30
50
100
200
300
2
VCC =
T
=
15 V
O
25
f
KHz)
1
10
500
20
30
50
100
200
300
f
KHz)
Figure 1.
Timing Resistor vs. Oscillator Frequency.
Dm ax
(%)
Figure 2.
Output Dead-Time vs. Oscillator Frequenc
.
y
(dB)
90
80
VCC = 15 V
VO = 2V to 4V
100K
R
=
L
O
25
C
80
60
70
40
60
V
=
CC
15 V
3.3nF
=
25
20
50
T
0
40
1
2
3
5
-20
Figure 3.
Maximum Output Duty Cycle vs.
Timing Resistor (MIK3842/4
3
.
)
V
th
(V)
1.0
VCC = 15V
R(
T
10
100
1K
10K
100K
1M
f (Hz)
Figure 4.
Error Amp Open-Loop Gain vs.
Fr
.
equency
IS
C
(mA)
100
VCC = 15 V
0.8
T
O
90
25 C
0.6
T
O
80
125 C
0.4
70
0.2
60
50
0
2
4
V
(
O
0
25 50
75
100
O
T
)
Figure 5.
Current Sense Input Threshold vs.
Error Amp Output Voltage
.
Figure 6.
Reference Short Circuit Current vs.
Temperature
.
BEIJING ESTEK ELECTRONICS CO.,LTD
6
ESTEK [ Estek Electronics Co. Ltd ]
