Datasheet

UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010
15
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TYPICAL CHARACTERISTICS
Figure 21
Maximum Duty Cycle -- %
M
A
XIMUM DUT
Y
C
Y
CLE
vs
TEMPERATURE
90
100
92
94
96
98
--50 --25 0 25 50 75 100 125
UCC38C40
UCC38C42
UCC38C43
T
J
-- Te mperature -- °C
Figure 22
MAXIMUM DUTY CYCLE
vs
TEMPERATURE
Output Rise and Fall TIme -- ns
45
50
46
47
48
49
--50 --25 0 25 50 75 100 125
UCC38C41
UCC38C44
UCC38C45
T
J
-- Te mperature -- °C
Figure 23
CURRENT SENSE THRESHOLD VOLTAGE
vs
TEMPERATURE
V
CS_th
-- Current Sense Threshold -- V
0.90
0.95
1.00
1.05
1.10
--50 --25 0 25 50 75 100 125
T
J
-- Te mperature -- °C
Figure 24
t
D
-- CD to OUT Delay Time -- ns
CS TO OUT DEL
A
Y
TIME
vs
TEMPERATURE
30
--50 --25 0 25 50 75 100 125
35
70
65
60
55
45
40
50
T
J
-- Te mperature -- °C