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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)： | 4/20頁 |
| 文件大小： | 434K |
| 代理商： | FW300F1 |
12
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)
Output Voltage Set-Point Adjustment
(Trim) (continued)
8-1171 (C).g
Figure 20. Resistor Selection for Decreased Output
Voltage
8-715 (C).b
Figure 21. Circuit Configuration to Increase
Output Voltage
8-1172 (C).f
Figure 22. Resistor Selection for Increased Output
Voltage
Output Overvoltage Protection
The output voltage is monitored at the VO(+) and VO(–)
pins of the module. If the voltage at these pins exceeds
the value indicated in the Feature Specifications table,
the module will shut down and latch off. Recovery from
latched shutdown is accomplished by cycling the dc
input power off for at least 1.0 s or toggling the primary
referenced on/off signal for at least 1.0 s.
Output Current Monitor
The CURRENT MON pin provides a dc voltage propor-
tional to the dc output current of the module given in
the Feature Specifications table. For example, on the
FW250F1, the V/A ratio is set at 65 mV/A
± 10% @
70
°C case. At a full load current of 50 A, the voltage on
the CURRENT MON pin is 3.25 V. The current monitor
signal is referenced to the SENSE(–) pin on the sec-
ondary and is supplied from a source impedance of
approximately 2 k
Ω. It is recommended that the CUR-
RENT MON pin be left open when not in use, although
no damage will result if the CURRENT MON pin is
shorted to secondary ground. Directly driving the CUR-
RENT MON pin with an external source will detrimen-
tally affect operation of the module and should be
avoided.
0
10
20
30
40
1M
100k
10k
1k
ADJUSTMENT
RESISTOR
VALUE
PERCENT CHANGE IN OUTPUT VOLTAGE (
Δ%)
(Ω)
VI(+)
VI(-)
ON/OFF
CASE
VO(+)
VO(-)
SENSE(+)
TRIM
SENSE(-)
Radj-up
RLOAD
0
246
10
10M
PERCENT CHANGE IN OUTPUT VOLTAGE (
)
ADJUSTMENT
RESISTOR
VALUE
(
Ω
)
1M
100k
10k
8
Δ%
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