參數(shù)資料
型號(hào): FW300A1
廠商: LINEAGE POWER LLC
元件分類(lèi): 電源模塊
英文描述: 1-OUTPUT 300 W DC-DC REG PWR SUPPLY MODULE
封裝: MODULE-20
文件頁(yè)數(shù): 8/20頁(yè)
文件大?。?/td> 593K
代理商: FW300A1
16
Lineage Power
Data Sheet
April 2008
dc-dc Converters; 36 to 75 Vdc Input, 5 Vdc Output; 250 W to 300 W
FW250A1 and FW300A1 Power Modules:
Thermal Considerations (continued)
Heat Transfer with Heat Sinks (continued)
8-1320 (C)
Figure 28. Case-to-Ambient Thermal Resistance
Curves; Longitudinal Orientation
These measured resistances are from heat transfer
from the sides and bottom of the module as well as the
top side with the attached heat sink; therefore, the
case-to-ambient thermal resistances shown are gener-
ally lower than the resistance of the heat sink by itself.
The module used to collect the data in Figures 27 and
28 had a thermal-conductive dry pad between the case
and the heat sink to minimize contact resistance.
To choose a heat sink, determine the power dissipated
as heat by the unit for the particular application.
Figures 29 and 30 show typical heat dissipation for a
range of output currents and three voltages for the
FW250A1 and FW300A1.
8-1758 (C)
Figure 29. FW250A1 Power Dissipation vs. Output
Current at 25 °C
8-1759 (C)
Figure 30. FW300A1 Power Dissipation vs. Output
Current at 25 °C
0
0.5
(100)
1.0
(200)
1.5
(300)
2.0
(400)
2.5
(500)
3.0
(600)
0.0
0.5
3.0
3.5
4.0
4.5
2.5
2.0
1.0
1 1/2 IN. HEAT SINK
1 IN. HEAT SINK
1/2 IN. HEAT SINK
1/4 IN. HEAT SINK
NO HEAT SINK
CASE-TO-AMBIENT
THERMAL
RESISTANCE,
θ
CA
(
°C/W)
1.5
AIR VELOCITY, m/s (ft./min.)
20
0
OUTPUT CURRENT, IO (A)
30
10
5
40
15
25
45
35
50
044
48
4
12
8
16
20
24
28 32
36
40
VI = 72 V
VI = 54 V
VI = 36 V
POWER
DISSIPATION,
P
D
(W)
20
0
40
60
70
10
30
50
10
20
30
40
50
60
0
OUTPUT CURRENT, IO (A)
VI = 36 V
VI = 72 V
VI = 54 V
POWER
DISSIPATION,
P
D
(W)
相關(guān)PDF資料
PDF描述
FW250B1 DC-DC REG PWR SUPPLY MODULE
FW250C1 DC-DC REG PWR SUPPLY MODULE
FW300C1 DC-DC REG PWR SUPPLY MODULE
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FW300G1 DC-DC REG PWR SUPPLY MODULE
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