FW300C1 Lineage Power, FW300C1 Datasheet - Page 10

• Manufacturer Part Number: FW300C1
• Description: CONVERTER DC/DC 15V 300W OUT
• Manufacturer: Lineage Power
• Series: FW300r
• Type: Isolated with Remote On/Offr

Specifications of FW300C1

• Output: 15V
• Number Of Outputs: 1
• Power (watts): 300W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: Module
• 1st Output: 15 VDC @ 20A
• Size / Dimension: 4.60" L x 2.40" W x 0.53" H (116.8mm x 61mm x 13.5mm)
• Power (watts) - Rated: 300W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 87%
• Approvals: CE, CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

dc-dc Converters; 36 to 75 Vdc Input, 15 Vdc Output; 250 W to 300 W
Feature Descriptions
Output Voltage Set-Point Adjustment
(Trim)
Output voltage trim allows the user to increase or
decrease the output voltage set point of a module. This
is accomplished by connecting an external resistor
between the TRIM pin and either the SENSE(+) or
SENSE(–) pins. The trim resistor should be positioned
close to the module.
If not using the trim feature, leave the TRIM pin open.
With an external resistor between the TRIM and
SENSE(–) pins (R
(V
equation determines the required external-resistor
value to obtain a percentage output voltage change of
Δ%.
The test results for this configuration are displayed in
Figure 14. This figure applies to all output voltages.
With an external resistor connected between the TRIM
and SENSE(+) pins (R
point (V
Note: The output voltage of this module may be
The following equation determines the required exter-
nal-resistor value to obtain a percentage output voltage
change of Δ%.
Only trim up to 0.5 V maximum. See note above.
The test results for this configuration are displayed in
Figure 16. For applications requiring voltage between
15 V and 24 V, consider using the FW250H1 trimmed
down.
Although the output voltage can be increased by both
the remote sense and by the trim, the maximum
increase for the output voltage is not the sum of both.
The maximum increase is the larger of either the
remote sense or the trim. Consult the factory if you
need to increase the output voltage more than the
above limitation.
10
10
O
,
R
adj
Radj-up
adj-down
increased to a maximum of 0.5 V. The 0.5 V is
the combination of both the remote sense and
the output voltage set-point adjustment (trim).
Do not exceed 15.5 V between the V
V
) decreases (see Figure 13). The following
O
O
,
(–) terminals.
adj
) increases (see Figure 15).
=
=
⎛
⎝
⎛
⎝
V
-------------------------------------- -
205
--------- - 2.255
Δ%
O
adj-down
1.225Δ%
(
100
–
adj-up
+
), the output voltage set point
Δ%
), the output voltage set
⎞
⎠
)
(continued)
–
kΩ
(
--------------------------------- -
100
Δ%
+
2Δ%
)
O
⎞
⎠
(+) and
kΩ
The amount of power delivered by the module is
defined as the voltage at the output terminals multiplied
by the output current. When using remote sense and
trim, the output voltage of the module can be
increased, which at the same output current would
increase the power output of the module. Care should
be taken to ensure that the maximum output power of
the module remains at or below the maximum rated
power.
Figure 13. Circuit Configuration to Decrease
Figure 14. Resistor Selection for Decreased Output
100k
10k
1M
1k
V
ON/OFF
CASE
V
I
I
(+)
(–)
0
Output Voltage
Voltage
% CHANGE IN OUTPUT VOLTAGE (Δ%)
SENSE(+)
SENSE(–)
10
V
TRIM
V
O
O
(+)
(–)
20
R
adj-down
Lineage Power
30
April 2008
R
LOAD
8-1171 (F).g
8-748 (F).b
40