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參數(shù)資料
| 型號(hào)： | HUGD-50 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Hold-Up Solution 16-40V & 9-36V DC/DC Converter Compatible Metallic Case |
| 中文描述： | 套牢溶液16 - 40V的 |
| 文件頁(yè)數(shù)： | 5/13頁(yè) |
| 文件大?。?/td> | 374K |
| 代理商： | HUGD-50 |
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For locations, phone, fax, E-Mail see back cover
5
Hi-Rel
Grade
HUGD-50 Series
Gaia Converter FC97-027.01/06 Revision H
4
8- Thermal Characteristics
Characteristics
Operating ambient temperature
range at full load
Operating case temperature
range at full load
Conditions
Limit or typical
Minimum
Maximum
Minimum
Maximum
Minimum
Maximum
Performances
- 40°C
+ 85°C
- 40°C
+105°C
- 55°C
+ 125°C
Ambient temperature *
Case temperature
Storage temperature range
Non functionning
Thermal resistance
Rth case to ambient in free air
natural convection
Typical
12°C /W
Note * : The upper temperature range depends on configuration, the user must assure a max. case temperature of + 105°C.
10
100
30
110
80
70
60
90
20
40
50
25%
75%
50%
100%
Power (W)
Temperature (
C)
Full load ambient temperature without derating : 85C
Maximum case temperature : 105C
Natural convection operation area
Additionnal cooling operation area
Maximum storage temperature : 125C
The HUGD-50 series operating
case
temperature must not exceed 105°C. The maximum
ambient
temperature admissible for
the DC/DC converter corresponding to the maximum operating case temperature of 105°C depends on the ambient airflow,
the mounting/orientation, the cooling features and the power dissipated.
To calculate a maximum admissible ambient temperature the following method can be used. Knowing the maximum case
temparature Tcase = 105°C of the module, the power used Pout and the efficienc
y
η :
determine the power dissipated by the module Pdiss that should be evacuated :
Pdiss = Pout(1/
η
- 1)
determine the maximum ambient temperature :
Ta = 105°C - Rth x Pdiss
where
Rth is the thermal resistance from the case to ambient
.
The previous thermal calculation shows two areas of operation :
a normal operation area in a free natural ambient convection (grey area in this following graph),
an area with cooling features (air flow or heatsink) ensuring a maximum case temperature below the maximum
operating case temperature of 105°C (white area in the following graph).
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