FA13842 Datasheet, PDF (5/15 Pages) Fuji Electric – CMOS IC(For Switching Power Supply Control)

s Characteristic curves (Ta=25˚C)
Timing resistance vs. oscillation frequency
FA13842, FA13843
100
2.2nF
CT=10nF
470pF
10
FA13842, 13843, 13844, 13845
Output dead time vs. oscillation frequency
FA13842, FA13843
100
VCC= 15V
Ta= 25˚C
2.2nF
CT=10nF
10
470pF
VCC= 15V
Ta= 25˚C
1
1
10
100
Oscillation frequency (kHz)
1000
Timing resistance vs. oscillation frequency
FA13844, FA13845
100
2.2nF
470pF
CT=10nF
10
VCC= 15V
Ta= 25˚C
1
1
10
100
Oscillation frequency (kHz)
RT/CT discharge current vs. temperature
10
9.5
9
8.5
8
7.5
7
–50
0
50
100
Temperature (˚C)
1000
150
1
10
100
1000
Oscillation frequency (kHz)
Output dead time vs. oscillation frequency
FA13844, FA13845
100
VCC= 15V
Ta= 25˚C
90
80
70
470pF
2.2nF
CT=10nF
60
50
40
10
100
Oscillation frequency (kHz)
1000
Output max. duty cycle vs. timing resistance
FA13842, FA13843
100
90
80
70
60
50
40
1
2
5
10
R_T timing resistance (kΩ)
5