ICM7555, ICM7556
Typical Performance Curves
NORMALIZED FREQUENCY DEVIATION (%)
8
T
A
= 25°C
DISCHARGE SINK CURRENT (mA)
6
4
2
0
2
4
6
8
0.1
1.0
10.0
100.0
R
A
= R
B
= 10MΩ
C = 100pF
(Continued)
100
T
A
= 25°C
V
DD
= 18V
10.0
V
DD
= 2V
V
DD
= 5V
R
A
= R
B
= 10kΩ
C = 0.1μF
1.0
SUPPLY VOLTAGE (V)
0.1
0.01
0.1
1.0
DISCHARGE LOW VOLTAGE (V)
10.0
FIGURE 10. NORMALIZED FREQUENCY STABILITY IN THE
ASTABLE MODE vs SUPPLY VOLTAGE
600
V
DD
= 5V
PROPAGATION DELAY (ns)
500
FIGURE 11. DISCHARGE OUTPUT CURRENT vs DISCHARGE
OUTPUT VOLTAGE
NORMALIZED FREQUENCY DEVIATION (%)
+1.0
+0.9
+0.8
+0.7
+0.6
+0.5
+0.4
+0.3
+0.2
+0.1
0
-0.1
-20
0
20
40
60
80
TEMPERATURE (°C)
V
DD
= 2V
V
DD
= 2V
V
DD
= 18V
V
DD
= 5V
R
A
= R
B
= 10kΩ
C = 0.1μF
400
300
200
100
0
0
10
20
30
40
LOWEST VOLTAGE LEVEL OF
TRIGGER
PULSE (%V
DD
)
T
A
= 70°C
T
A
= 25°C
T
A
= -20°C
FIGURE 12. PROPAGATION DELAY vs VOLTAGE LEVEL OF
TRIGGER PULSE
1.0
100m
10m
CAPACITANCE (F)
1m
100μ
10μ
1μ
100n
10n
1n
100p
10p
1p
0.1
T
A
= 25°C
(R
A
+ 2R
B
)
1kΩ
10kΩ
100kΩ
1MΩ
10MΩ
100MΩ
FIGURE 13. NORMALIZED FREQUENCY STABILITY IN THE
ASTABLE MODE vs TEMPERATURE
1.0
100m
10m
CAPACITANCE (F)
1m
100μ
10μ
1μ
100n
10n
1n
100p
10p
1p
100n
1kΩ
10kΩ
100kΩ
1MΩ
10MΩ
100MΩ
T
A
= 25°C
R
A
1
10
100
1k
10k
100k
1M
10M
1μ
10μ
100μ
1m
10m 100m
1
10
FREQUENCY (Hz)
TIME DELAY (s)
FIGURE 14. FREE RUNNING FREQUENCY vs R
A
, R
B
AND C
FIGURE 15. TIME DELAY IN THE MONOSTABLE MODE vs
R
A
AND C
8
FN2867.9
August 24, 2006
INTERSIL [ INTERSIL CORPORATION ]
