參數(shù)資料
型號(hào)： FC250R
元件分類： DC/DC變換器
英文描述： Power Module:dc-dc Converter; 18 Vdc to 36 Vdc Input, 28 Vdc Output; 250 W
中文描述： 電源模塊：型DC - DC轉(zhuǎn)換器，18伏到36伏直流電輸入，28伏直流輸出; 250瓦
文件頁(yè)數(shù)： 14/20頁(yè)
文件大?。?/td> 1145K
代理商： FC250R
14
Tyco Electronics Corp.
Data Sheet
May 1999
dc-dc Converter; 18 Vdc to 36 Vdc Input, 28 Vdc Output; 250 W
FC250R Power Module:
Thermal Considerations
(continued)
Custom Heat Sinks
(continued)
For a managed interface using thermal grease or foils,
a value of
θ
cs = 0.1 °C/W to 0.3 °C/W is typical. The
solution for heat sink resistance is:
This equation assumes that all dissipated power must
be shed by the heat sink. Depending on the user-
defined application environment, a more accurate
model, including heat transfer from the sides and bot-
tom of the module, can be used. This equation provides
a conservative estimate for such instances.
Solder, Cleaning, and Drying
Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical testing. The result
of inadequate circuit-board cleaning and drying can
affect both the reliability of a power module and the
testability of the finished circuit-board assembly. For
guidance on appropriate soldering, cleaning, and dry-
ing procedures, refer to the Board-Mounted Power
Modules Soldering and CleaningApplication Note
(AP97-021EPS).
EMC Considerations
For assistance with designing for EMC compliance,
please refer to the FLTR100V10 data sheet
(DS98-152EPS).
Layout Considerations
Copper paths must not be routed beneath the power
module mounting inserts. For additional layout guide-
lines, refer to the FLTR100V10 data sheet
(DS98-152EPS).
θ
sa
T
C
---------P
T
A
–
(
)
D
θ
cs
–
=
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