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参数资料
型号： AEH10A24
元件分类： 电源模块
英文描述： 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE
文件页数： 25/38页
文件大小： 517K
代理商： AEH10A24
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E
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H
H 2
2
2 4
4
4 V
V
V IIIIn
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P
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-31-
USA
Europe
Asia
TEL:
1-760-930-4600
44-(0)1384-842-211
852-2437-9662
FAX:
1-760-930-0698
44-(0)1384-843-355
852-2402-4426
www.astec.com
Module Derating
Experiment Setup
From the experimental set up shown in figure
31, the derating curves as figure 32 can be
drawn. Note that the PWB ( printed-wiring
board ) and the module must be mounted verti-
cally. The passage has a rectangular cross-
section. The clearance between the facing
PWB and the top of the module is kept 13 mm
(0.5 in.) constantly.
Convection W
Convection Without Heat Sinks
ithout Heat Sinks
Heat transfer can be enhanced by increasing
the airflow over the module. Figure 32 shows
the maximum power that can be dissipated by
the module.
In the test, natural convection airflow was mea-
sured at 0.05 m/s to 0.1 m/s (10 ft./min. to 20
ft./min.). The 0.5 m/s to 4.0 m/s (100 ft./min. to
800 ft./min.) curves are tested with externally
adjustable fans. The appropriate airflow for a
given operating condition can be determined
through figure 32.
Example 1. How to calculate the minimum
airflow required to maintain a desired Tc?
If a AEH20A24N module operates with a 24V
line voltage, a 20 A output current, and a 40 ° C
maximum ambient temperature, What is the
minimum airflow necessary for the operating?
Determine PD ( referenced Fig.30 ) with con-
dition:
Vin = 24 V
lO = 20 A
Get: PD = 15 W
And with TA = 40 °C
Determine airflow ( Fig.32 ):
v = 1.5 m/s (300 ft./min.)
Example 2. How to calculate the maximum
output power of a module in a certain con-
vection and a max. TA?
What is the maximum power output for a
AEH20A24N operating at following conditions:
Vin = 24 V
v = 1.5 m/s (300 ft./min.)
TA = 40 °C
Determine PD ( Fig.32 )
PD = 15W
Determine IO ( Fig.30 ):
IO = 20 A
Calculate PO:
0
10
203040
100
0
21
Local Ambient Temperature, TA (°C)
Power
Dissipation
,
P
D
(W)
15
12
6
90
80
70
60
50
4.0 m/s (800 ft./min.)
0.1 m/s (20 ft./min.)
Natural Convection
1.0 m/s (200 ft./min.)
2.0 m/s (400 ft./min.)
3.0 m/s (600 ft./min.)
3
9
18
1.5 m/s (300 ft./min.)
0.5 m/s (100 ft./min.)
Fig.32 Forced Convection Power Derating
without Heat Sink
Dimensions: millimeters (inches).
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED
BELOW THE
MODULE
AIRFLOW
19 (0.75)
FACING PWB
MODULE
PWB
76 (3.00)
Fig.31 Experiment Set Up
相关PDF资料
PDF描述
AEH10G24-N8 1-OUTPUT 25 W DC-DC REG PWR SUPPLY MODULE
AEH10G24-N 1-OUTPUT 25 W DC-DC REG PWR SUPPLY MODULE
AEH30A24-6 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
AEUFB-BR1 INTERCONNECTION DEVICE
BANFA-BS1 INTERCONNECTION DEVICE
相关代理商/技术参数
参数描述
AEH10A24L 制造商:Johnson Components 功能描述:50W, 18-36VIN, SINGLE, 5.0V@10
AEH10A24N 功能描述:DC/DC转换器 CONV DC-DC 50W 24VIN RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
AEH10A48 功能描述:DC/DC转换器 CONV DC-DC 50W 48VIN RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
AEH10A48N 功能描述:DC/DC转换器 CONV DC-DC 50W 48VIN RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
AEH10F24 功能描述:DC/DC转换器 CONV DC-DC 50W 24VIN RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
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