參數(shù)資料
型號： FW330F1-33T
元件分類： 電源模塊
英文描述： 1-OUTPUT 330 W DC-DC REG PWR SUPPLY MODULE
封裝： 2.40 X 4.60 INCH, 0.57 INCH HEIGHT, POWER MODULE
文件頁數(shù)： 13/29頁
文件大?。?/td> 347K
代理商： FW330F1-33T
Tyco Electronics Corp.
19
Advance Data Sheet
March 2000
36 to 75 Vdc Input, 3.6, 3.3, 2.5, 2.0, or 1.8 Vdc Output; 180 W to 330 W
FW330 Power Modules: dc-dc Converters;
Thermal Considerations (continued)
Heat Transfer Without Heat Sinks (continued)
8-2907 (C)
Figure 30. Convection Power Derating with No Heat
Sink; Airow Along Width; Transverse
Orientation
8-2908 (C)
Figure 31. Convection Power Derating with No Heat
Sink; Airow Along Length;
Longitudinal Orientation
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 be attached to the module. The mounting torque
must not exceed 0.56 N-m (5 in.-lb.). For the 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.).
Figures 32 and 33 shows the power derating for a mod-
ule in natural convection with the heat sinks shown in
Figures 42 and 43. Natural convection is the heat
transfer produced when air in contact with a hot surface
is heated, causing it to rise. An open environment is
required with no external forces moving the air.
Figures 32 and 33 apply when the module is the only
source of heat present in the system, generating air-
ow of approximately 10 ft./min. to 20 ft./min. Some
systems with other heat dissipating components can
generate airows greater than 20 ft./min.
8-2608 (C)
Figure 32. Heat Sink Power Derating Curves
Natural Convection, Longitudinal
Orientation
8-2609 (C)
Figure 33. Heat Sink Power Derating Curves
Natural Convection, Transverse
Orientation
80
70
20
10
20
70
80
90
100
0
LOCAL AMBIENT TEMPERATURE, TA (
°C)
40
60
10
90
110
0
50
60
40
50
POWER
DISSIPATION,
P
D
(W)
30
3.0 m/s (600FT./MIN.)
2.0 m/s (400FT./MIN.)
1.0 m/s (200FT./MIN.)
0.1 m/s (NAT. CONV.)
80
70
20
10
20
70
80
90
100
0
LOCAL AMBIENT TEMPERATURE, TA (
°C)
40
60
10
90
110
0
50
60
40
50
POWER
DISSIPATION,
P
D
(W)
30
3.0 m/s (600FT./MIN.)
2.0 m/s (400FT./MIN.)
1.0 m/s (200FT./MIN.)
0.1 m/s (NAT. CONV.)
70
30
10
20
40
60
50
70
0
60
LOCAL AMBIENT TEMPERATURE, TA (
°C)
40
50
20
10
80
90
0
80
POWER
DISSIPATION,
P
D
(W)
100
1 1/2 IN. HEAT SINK
1 IN. HEAT SINK
1/2 IN. HEAT SINK
1/4 IN. HEAT SINK
NO HEAT SINK
70
30
10
20
40
60
50
70
0
60
LOCAL AMBIENT TEMPERATURE, TA (
°C)
40
50
20
10
80
90
0
80
POWER
DISSIPATION,
P
D
(W)
100
1 1/2 IN. HEAT SINK
1 IN. HEAT SINK
1/2 IN. HEAT SINK
1/4 IN. HEAT SINK
NO HEAT SINK
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