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參數(shù)資料
| 型號： | FW300F1 |
| 廠商： | LINEAGE POWER LLC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 198 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | MODULE-20 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 434K |
| 代理商： | FW300F1 |
14
Lineage Power
Data Sheet
April 2008
dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 165 W to 198 W
FW250F1 and FW300F1 Power Modules:
Feature Descriptions (continued)
Forced Load Sharing (Parallel Operation)
(continued)
When not using the parallel feature, leave the
PARALLEL pin open.
8-581 (C)
Figure 23. 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 24.
8-1303 (C).a
Note: Top view, measurements shown in millimeters and (inches).
Pin locations are for reference only.
Figure 24. Case Temperature Measurement
Location
The temperature at this location should not exceed
100 °C. The maximum case temperature can be limited
to a lower value for extremely high reliability. The output
power of the module should not exceed the rated power
for the module as listed in the Ordering Information
table.
For additional information about these modules, refer
to the Thermal Management for FC- and FW-Series
250 W—300 W Board-Mounted Power Modules Tech-
nical Note (TN96-009EPS).
VO(+)
PARALLEL
SENSE(+)
SENSE(-)
VO(-)
CASE
VI(+)
ON/OFF
VI(-)
VO(+)
PARALLEL
SENSE(+)
SENSE(-)
VO(-)
CASE
VI(+)
ON/OFF
VI(-)
30.5
(1.20)
82.6
(3.25)
CASE
SYNC IN
VI(-)
VI(+)
VO(+)
VO(-)
SYNC OUT
MEASURE CASE
TEMPERATURE HERE
ON/OFF
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