KA3843 データシートの表示（PDF） - Estek Electronics Co. Ltd
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KA3843 Datasheet PDF : 7 Pages
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RT
(K
)Ω
50
C 5nF
20
Typical Performance Characteristics
%
50
C 1nF
30
20
C 500pF
C 2nF
C 5nF
C 10nF
10
5
C 10nF
Dm ax
(%)
2
VCC = 15
T O25
C
1
10
20 30 50
500
100
200
300
f
Figure 1. Timing Resistor vs. Oscillator Frequency.
KHz)
10
C 200pF
5
3
2
C 100pF
VCC = 15 V
O
T = 25
1
10
20 30 50
500
100
200
300
f
KHz)
Figure 2. Output Dead-Time vs. Oscillator Frequenc .y
(d B)
90
80
VCC = 15 V
VO = 2V to 4V
R 100K
=L O25 C
80
60
70
40
60
V
15 V
=CC 3.3nF
50
T = 25
40
1
Figure
3.
2
3
Maximum Output Duty
5R
Cycle vs.
(T
Timing Resistor (MIK3842/4 .3)
Vth
(V)
1.0
VCC = 15V
20
0
-20
10
ISC
(mA)
100
1K
10K 100K 1M
f (Hz)
Figure 4. Error Amp Open-Loop Gain vs.
Fr
.equency
100
VCC = 15 V
0.8
90
T O25 C
0.6
80
T O125 C
0.4
70
0.2
0
24
V (O
Figure 5. Current Sense Input Threshold vs.
Error Amp Output Voltage.
60
50
0
25 50
75
100 T O )
Figure 6. Reference Short Circuit Current vs.
Temperature.
BEIJING ESTEK ELECTRONICS CO.,LTD
6
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