MB39A104
Triangular Wave Oscillation Frequency
vs. Timing Capacitor
Triangular Wave Oscillation Frequency
vs. Timing Resistor
10000
10000
Ta = +25 °C
VCC = 12 V
CTL = 5 V
Ta = +25 °C
VCC = 12 V
CTL = 5 V
1000
1000
100
10
RT = 11 kΩ
CT = 39 pF
RT = 24 kΩ
100
CT = 560 pF
RT = 130 kΩ
RT = 68 kΩ
CT = 220 pF
CT = 100 pF
10
10
100
1000
10000
1
10
100
1000
Timing resistor RT (kΩ)
Timing capacitor CT (pF)
Triangular Wave Upper and Lower Limit Voltage
vs. Ambient Temperature
Triangular Wave Upper and Lower Limit Voltage
vs. Triangular Wave Oscillation Frequency
3.2
3.2
VCC = 12 V
Ta = +25 °C
3.0
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
CTL = 5 V
VCC = 12 V
CTL = 5 V
RT = 24 kΩ
CT = 100 pF
2.8
RT = 47 kΩ
Upper
Upper
2.6
2.4
2.2
2.0
1.8
Lower
1.6
Lower
1.4
1.2
−40 −20
0
20
40
60
80
100
0
200 400 600 800 1000 1200 1400 1600
Ambient temperature Ta ( °C)
Triangular wave oscillation frequency fOSC (kHz)
Triangular Wave Oscillation Frequency
vs. Ambient Temperature
Triangular Wave Oscillation Frequency
vs. Power supply voltage
560
560
VCC = 12 V
CTL = 5 V
Ta = +25 °C
CTL = 5 V
RT = 24 kΩ
CT = 100 pF
540
520
500
480
460
440
RT = 24 kΩ
CT = 100 pF
540
520
500
480
460
440
−40 −20
0
20
40
60
80
100
0
5
10
15
20
Ambient temperature Ta ( °C)
Power supply voltage VCC (V)
(Continued)
9
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