FW300C1 Lineage Power, FW300C1 Datasheet - Page 11

• 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: -

April 2008
Feature Descriptions
Output Voltage Set-Point Adjustment
(Trim)
Figure 15. Circuit Configuration to Increase
Figure 16. Resistor Selection for Increased Output
Output Overvoltage Protection
The output voltage is monitored at the V
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 second or toggling the
primary referenced on/off signal for at least 1.0 second.
Lineage Power
100M
100k
10M
V
ON/OFF
CASE
V
1M
I
I
(+)
(–)
(continued)
0
Output Voltage
Voltage
% CHANGE IN OUTPUT VOLTAGE (Δ%)
SENSE(+)
SENSE(–)
0.7
V
V
TRIM
O
O
(+)
(–)
1.4
dc-dc Converters; 36 to 75 Vdc Input, 15 Vdc Output; 250 W to 300 W
(continued)
2.1
2.1
R
adj-up
O
(+) and V
2.8
R
LOAD
8-715 (F).b
8-2148 (F)
O
3.5
(–)
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
FW250C1, the V/A ratio is set at 250 mV/A ± 10% @
70 °C case. At a full load current of 16.7 A, the voltage
on the CURRENT MON pin is 4.18 V. The current mon-
itor signal is referenced to the SENSE(–) pin on the
secondary and is supplied from a source impedance of
approximately 2 kΩ . 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.
Synchronization
Any module can be synchronized to any other module
or to an external clock using the SYNC IN or SYNC
OUT pins. The modules are not designed to operate in
a master/slave configuration; that is, if one module
fails, the other modules will continue to operate.
SYNC IN Pin
This pin can be connected either to an external clock or
directly to the SYNC OUT pin of another FW250x or
FW300x module.
If an external clock signal is applied to the SYNC IN
pin, the signal must be a 500 kHz (±50 kHz) square
wave with a 4 Vp-p amplitude. Operation outside this
frequency band will detrimentally affect the perfor-
mance of the module and must be avoided.
If the SYNC IN pin is connected to the SYNC OUT pin
of another module, the connection should be as direct
as possible, and the V
shorted together.
Unused SYNC IN pins should be tied to V
SYNC IN pin is unused, the module will operate from
its own internal clock.
I
(–) pins of the modules must be
I
(–). If the
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