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参数资料
| 型号： | AK45C-048L-025F20HA-8 |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 5/17页 |
| 文件大小： | 115K |
| 代理商： | AK45C-048L-025F20HA-8 |
Technical Reference Notes (TRN)
AK45C 100W Series
36 Vdc to 75 Vdc Inputs, 100 W
_____________________________________________________________
ASTEC POWER - Andover
13 of 17
Thermal Considerations
The power converter operates in a variety of thermal environments: however, sufficient cooling
should be provided to help ensure reliable operation of the converter. Heat-dissipating
components are thermally coupled to the case. Heat is removed by conduction, convection, and
radiation to the surrounding environment. Proper cooling can be verified by measuring the case
temperature.
Heat Transfer Characteristics
Increasing airflow over the converter enhances the heat transfer via convection. Figure 14 shows
the maximum power that can be dissipated by the converter without exceeding the maximum
case temperature versus local ambient temperature (TA) for natural convection through 2.0 m/s
(400 ft/min).
Systems in which these converters are used generate airflow rates of 0.25 m/s (50 ft/min) due to
other heat dissipating components in the system. Therefore, the natural convection condition
represents airflow rates of approximately 0.25 m/s (50 ft/min). Use of Figure 14 is shown in the
following example.
Example
What is the minimum airflow required for an 033F20 operating at 48 V, an output current of 15 A,
and maximum ambient temperature of 50 C.
Solution:
Given: Vi = 48 V, Io = 15 A, TA = 50 C.
Determine PD (Figure 17): PD = ~8 W.
Determine minimum airflow (Figure 14): v = 1.0 m/s (200 ft/min)
Figure 14. Forced Convection Power Derating
* longitudinal airflow, transverse airflow is more efficient and extends
calculated maximum ambient by 5 °C
AK45C SERIES
Power Derating Curve*
0
2
4
6
8
10
12
14
16
18
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Ambient Temperature (C)
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)
Nat. Conv.
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相关代理商/技术参数 |
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| AK45C-048L-025F20HAN | 功能描述:CONV DC-DC 100W 48VIN 2.5V NEGEN RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:AK45C 设计资源:VI-200, VI-J00 Design Guide, Appl Manual 标准包装:1 系列:* 类型:隔离 输出数:1 电压 - 输入（最小）:55V 电压 - 输入（最大）:100V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:* 电源（瓦） - 制造商系列:200W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:9-FinMod 尺寸/尺寸:4.60" L x 1.86" W x 0.79" H（116.8mm x 47.2mm x 20.1mm） 包装:散装 工作温度:-55°C ~ 85°C 效率:* 电源（瓦特）- 最大:* |
| AK45C-048L-025F20HAN-6 | 制造商:ASTEC 制造商全称:Astec America, Inc 功能描述:36 Vdc to 75 Vdc Inputs, 100 W |
| AK45C-048L-025F20HAN-68 | 制造商:ASTEC 制造商全称:Astec America, Inc 功能描述:100 Watts |
| AK45C-048L-025F20HAN-8 | 制造商:ASTEC 制造商全称:Astec America, Inc 功能描述:36 Vdc to 75 Vdc Inputs, 100 W |
| AK45C-048L-033F20H | 制造商:Emerson Network Power 功能描述: |
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