JW050F Lineage Power, JW050F Datasheet - Page 14

• Manufacturer Part Number: JW050F
• Manufacturer: Lineage Power

dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 99 W
Thermal Considerations
Heat Transfer Without Heat Sinks
Figure 28. JW075F Power Dissipation vs.
Figure 29. JW100F Power Dissipation vs.
14
14
17
16
15
14
13
12
11
10
16
14
12
10
9
8
7
6
5
4
3
2
1
0
8
6
4
2
0
0
0
Output Current
Output Current
2
2
4
4
OUTPUT CURRENT, I
OUTPUT CURRENT, I
6
8
6
10
8
12
(continued)
V
V
V
V
O
10
V
V
V
V
O
I
I
I
I
(A)
14
I
I
I
I
= 36 V
= 54 V
= 36 V
= 75 V
(A)
= 36 V
= 54 V
= 36 V
= 75 V
16
12
(continued)
18
8-1460 (C)
8-1461 (C)
14
20
Figure 30. JW150F Power Dissipation vs.
Figure 31. Forced Convection Power Derating with
Heat Transfer with Heat Sinks
The power modules have through-threaded, M3 x 0.5
mounting holes, which enable heat sinks or cold plates
to attach to the module. The mounting torque must not
exceed 0.56 N-m (5 in.-lb.). For a screw attachment
from the pin side, the recommended hole size on the
customer’s PWB around the mounting holes is
0.130 ± 0.005 inches. If a larger hole is used, the
mounting torque from the pin side must not exceed
0.25 N-m (2.2 in.-lb.).
30
25
20
15
10
35
30
25
20
15
10
5
0
5
0
0
0
Output Current
No Heat Sink; Either Orientation
0.1 m/s (NAT. CONV.)
10
LOCAL AMBIENT TEMPERATURE, T
5
20
(20 ft./min.)
OUTPUT CURRENT, I
30
10
40
50
15
V
V
V
V
I
I
I
I
= 36 V
= 54 V
= 36 V
= 75 V
60
4.0 m/s (800 ft./min.)
3.5 m/s (700 ft./min.)
3.0 m/s (600 ft./min.)
2.5 m/s (500 ft./min.)
2.0 m/s (400 ft./min.)
1.5 m/s (300 ft./min.)
1.0 m/s (200 ft./min.)
0.5 m/s (100 ft./min.)
20
O
70
(A)
Lineage Power
A
April 2008
80
(°C)
25
90
8-1150 (C).a
8-1462 (C)
100
30