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參數(shù)資料
| 型號： | FW400R61-18 |
| 廠商： | LINEAGE POWER LLC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 392 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | MODULE-20 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 412K |
| 代理商： | FW400R61-18 |
12
Lineage Power
Data Sheet
April 03, 2008
36 Vdc to 75 Vdc Input, 28 Vdc Output; 400 W
FW400R1 Power Module; dc-dc Converter:
Feature Descriptions (continued)
Forced Load Sharing (Parallel Operation)
(continued)
8-581 (F)
Figure 15. Wiring Configuration for Redundant
Parallel Operation
Power Good Signal
The PWR GOOD pin provides an open-drain signal
(referenced to the SENSE(–) pin) that indicates the
operating state of the module. A low impedance
(<100
Ω) between PWR GOOD and SENSE(–) indi-
cates that the module is operating. A high impedance
(>1 M
Ω) between PWR GOOD and SENSE(–) indi-
cates that the module is off or has failed. The PWR
GOOD pin can be pulled up through a resistor to an
external voltage to facilitate sensing. This external volt-
age level must not exceed 40 V, and the current into
the PWR GOOD pin during the low-impedance state
should be limited to 1 mA maximum.
Thermal Considerations
Introduction
The power modules operate in a variety of thermal
environments; however, sufficient cooling should be
provided to help ensure reliable operation of the unit.
Heat-dissipating components inside the unit are ther-
mally coupled to the case. Heat is removed by conduc-
tion, convection, and radiation to the surrounding
environment. Proper cooling can be verified by mea-
suring the case temperature. Peak temperature occurs
at the position indicated in Figure 16.
8-1303 (F).g
Note: Top view, measurements shown in millimeters and (inches).
Pin locations are for reference only.
Figure 16. Case Temperature Measurement
Location
Sufficient cooling methods must be designed to hold the
maximum case temperature at this location to 94
°C as
shown in Figure 17. The maximum case temperature
can be limited to a lower value for extremely high reliabil-
ity. The output power of the module should not exceed
the rated power of the module as listed in the Ordering
Information table.
CASE
ON/OFF
VI(+)
VI(–)
SENSE(+)
SENSE(–)
VO(+)
VO(–)
PARALLEL
CASE
ON/OFF
VI(+)
VI(–)
SENSE(+)
SENSE(–)
VO(+)
VO(–)
PARALLEL
CASE
SYNC IN
SYNC OUT
MEASURE CASE
TEMPERATURE HERE
ON/OFF
34.3
(1.35)
30.5
(1.20)
VI(+)
VI(–)
VO(+)
VO(–)
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