FUJITSU MB39A104 - Manual (Page 9)

MB39A104
9
(Continued)
Ta = +25 °C
VCC = 12 V
CTL = 5 V
C T
= 39 pF
10000
1000
100
10
C T
= 100 pF C T
= 220 pF
C T
= 560 pF
1 10 100 1000
Ta = +25 °C
VCC = 12 V
CTL = 5 V
R
T
= 11 kΩ
10000
1000
100
10
R
T
= 24 kΩ
R T
= 68 kΩ R
T
= 130 kΩ
10 100 1000 10000
Ta = +25 °C
VCC = 12 V
CTL = 5 V
R T
= 47 kΩ
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
0 200 400 600 800 1000 1200 1600 1400
VCC = 12 V
CTL = 5 V
R T
= 24 kΩ
C T
= 100 pF
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
−40 −20 0 +20 +40 +60 +80 +100
VCC = 12 V
CTL = 5 V
R T
= 24 kΩ
C T
= 100 pF
560
540
520
500
480
460
440
−40 −20 0 +20 +40 +60 +80 +100
Triangular Wave Upper and Lower Limit Voltage
vs. Ambient Temperature
Tria
ngu
lar
wa
ve
u
ppe
r
an
d
low
e
r limit v
o
ltage
V
CT
(V)
Ambient temperature Ta ( °C)
Triangular Wave Oscillation Frequency
vs. Timing Resistor
Triangular w
a
v
e
osc
illation
fr
eq
ue
ncy f
OSC
(kHz)
Timing resistor R
T
(k
Ω)
Triangular Wave Oscillation Frequency
vs. Timing Capacitor
Tr
iang
ula
r wave osci
llat
ion
fr
e
que
ncy f
OS
C
(k
Hz)
Timing capacitor C
T
(pF)
Triangular Wave Oscillation Frequency
vs. Ambient Temperature
Tri
angular w
a
v
e
osc
illation
fr
eq
ue
ncy f
OSC
(kHz)
Ambient temperature Ta ( °C)
Tria
ng
ular
wa
ve
u
p
p
e
r a
nd
lower limit v
o
ltage
V
CT
(V)
Triangular Wave Upper and Lower Limit Voltage
vs. Triangular Wave Oscillation Frequency
Triangular wave oscillation frequency f
OSC
(kHz)
Ta = +25 °C
CTL = 5 V
R T
= 24 kΩ
C
T
= 100 pF
560
540
520
500
480
460
440
0 5 10 15 20
Triangular Wave Oscillation Frequency
vs. Power supply voltage
Triangular wave oscillation
fr
e
que
ncy f
OS
C
(k
Hz)
Power supply voltage V
CC
(V)
Upper
Lower
Upper
Lower