Datasheet

UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010
14
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TYPICAL CHARACTERISTICS
Figure 17
5
0
10
15
20
25
200 k 400 k 600 k 800 k
0k 1M
1-nF LOAD
NO LOAD
SUPPLY CURRENT
vs
OSCILLATOR FREQUENCY
I
DD
-- Supply Current -- mA
f -- Frequency -- Hz
Figure 18
I
DD
-- Supply Current -- mA
-- 5 0
2.1
3.0
2.9
2.7
2.6
2.4
2.2
2.0
2.3
2.5
2.8
--25 0 25 50 75 100 125
SUPPLY CURRENT
vs
TEMPERATURE
T
J
-- Te mperature -- °C
NO LOAD
Figure 19
OUTPUT RISE TIME AND FALL TIME
vs
TEMPERATURE
Output Rise and Fall TIme -- ns
10
15
40
35
30
20
25
tf
tr
(1 nF)
--50 --25 0 25 50 75 100 125
T
J
-- Te mperature -- °C
(1 nF)
10% to 90%
V
DD
=12V
Figure 20
Duty Cycle -- %
f -- Frequency -- kHz
MAXIMUM DUTY CYCLE
vs
OSCILLATOR FREQUENCY
50
100
90
60
0
500
80
70
CT = 220 pF
CT = 1 nF
1000
1500
2000
2500