MIC4451/4452
Micrel, Inc.
Typical Characteristic Curves
Rise Time
vs. Supply Voltage
Fall Time
vs. Supply Voltage
Rise and FallTimes
vs. Temperature
C
L
= 10,000pF
V
S
= 18V
t
FALL
220
200
180
160
140
120
100
80
60
40
20
0
R IS E T IM E (n s )
220
200
180
160
140
120
100
80
60
40
20
0
F A L L T IM E (n s )
60
50
T IM E (n s )
40
30
20
10
47,000pF
47,000pF
22,000pF
10,000pF
4
6
8
10 12 14 16
SUPPLY VOLTAGE (V)
18
22,000pF
10,000pF
4
6
8
10 12 14 16
SUPPLY VOLTAGE (V)
18
t
RISE
0
-40
0
40
80
120
TEMPERATURE (
°C)
300
250
R IS E T IM E (n s )
Rise Time
vs. Capacitive Load
5V
300
250
F A L L T IM E (n s )
Fall Time
vs. Capacitive Load
C R O S S O V E R E N E R G Y (A •s )
10
-7
Crossover Energy
vs. Supply Voltage
PER TRANSITION
200
150
10V
100
50
0
100
1000
10k
CAPACITIVE LOAD (pF)
18V
100k
200
150
100
50
0
100
10V
5V
10
-8
18V
1000
10k
CAPACITIVE LOAD (pF)
100k
10
-9
4
6
8
10 12 14
VOLTAGE (V)
16
18
S U P P L Y C U R R E N T (m A )
S U P P L Y C U R R E N T (m A )
120
90
60
30
0
20
S U P P L Y C U R R E N T (m A )
220
200
180
160
140
120
100
80
60
40
20
0
Supply Current
vs. Capacitive Load
V
S
= 18V
150
Supply Current
vs. Capacitive Load
V
S
= 12V
75
60
45
30
15
0
Supply Current
vs. Capacitive Load
V
S
= 5V
1
z
MH
z
kH
z
20
100
1000
10k
CAPACITIVE LOAD (pF)
100k
100
1000
10k
CAPACITIVE LOAD (pF)
100k
100
1000
10k
CAPACITIVE LOAD (pF)
20
1M
50
50
0k
0k
0k
50
Hz
1M
Hz
kH
H
H
H
180
S U P P L Y C U R R E N T (m A )
Supply Current
vs. Frequency
V
S
= 18V
S U P P L Y C U R R E N T (m A )
120
100
80
60
40
20
0
Supply Current
vs. Frequency
V
S
= 12V
S U P P L Y C U R R E N T (m A )
60
50
40
30
20
10
0
Supply Current
vs. Frequency
V
S
= 5V
0 .0 1
µF
160
140
120
100
80
60
40
20
0
F
F
µF
0 .1 µ
0 .1 µ
0 .0 1
µF
pF
1000
0 .0 1
1000
0 .1 µ
pF
F
10k
100k
1M
FREQUENCY (Hz)
10M
10k
100k
1M
FREQUENCY (Hz)
10M
10k
100k
1M
FREQUENCY (Hz)
1000
pF
kH
z
z
z
July 2005
5
MIC4451/4452
z
100k
10M
MICREL [ MICREL SEMICONDUCTOR ]
