ADDC02812DA/ADDC02815DA
Typical Performance Curves
14.4
14.2
14.0
13.8
13.6
13.4
13.2
13.0
86
28V
84
18V
40V
82
80
78
76
74
72
70
V
V
T
= 28V
= +12V
= +25؇C
IN
O
C
50
60
70
80
90
100
10
20
30
40
50
60
70
80
90
100
OUTPUT POWER – Watts
OUTPUT POWER – Watts
Figure 1. Efficiency vs. Line and Load at +25°C
Figure 4. Low Line Dropout vs. Load at 90°C Case
(ADDC02812DA)
Tem perature
88
1.00
0.50
28V
86
18V
84
82
V
V
= 28V
40V
IN
80
78
76
74
72
70
= ؎ 15V
= +25؇C
O
0.00
T
C
–0.50
–1.00
10
20
30
40
50
60
70
80
90
100
–55
–35
–15
5
25
55
75
90
OUTPUT POWER – Watts
T
– ؇C
CASE
Figure 2. Efficiency vs. Line and Load at +25°C
Figure 5. Norm alized Output Voltage vs. Case
(ADDC02815DA)
Tem perature (°C)
87
86
85
84
83
V
O
2V
/DIV
V
INHIBIT
1ms
–55 –45 –35 –15 –5
5
25
– ؇C
45
65
85
90
T
CASE
Figure 6. Output Voltage Transient During Turn-On
with Minim um Load Displaying Soft Start When Supply
Is Enabled
Figure 3. Efficiency vs. Case Tem perature (°C)
(at Nom inal VIN, 75% Max Load, ADDC02812DA)
–5–
REV. A
ADI [ ADI ]
