FW300F1 Lineage Power, FW300F1 Datasheet - Page 11

• Manufacturer Part Number: FW300F1
• Description: CONVERTER DC/DC 3.3V 198W OUT
• Manufacturer: Lineage Power
• Series: FW300r
• Type: Isolated with Remote On/Offr

Specifications of FW300F1

• Output: 3.3V
• Number Of Outputs: 1
• Power (watts): 198W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: Module
• 1st Output: 3.3 VDC @ 60A
• Size / Dimension: 4.60" L x 2.40" W x 0.53" H (116.8mm x 61mm x 13.5mm)
• Power (watts) - Rated: 198W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 79%
• Approvals: CE, CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

July 2002
Feature Descriptions
Remote Sense
Remote sense minimizes the effects of distribution
losses by regulating the voltage at the remote-sense
connections. The voltage between the remote-sense
pins and the output terminals must not exceed the out-
put voltage sense range given in the Feature Specifica-
tions table, i.e.:
The voltage between the V
must not exceed the minimum value indicated in the
output overvoltage shutdown section of the Feature
Specifications table. This limit includes any increase in
voltage due to remote-sense compensation and output
voltage set-point adjustment (trim), see Figure 18.
If not using the remote-sense feature to regulate the out-
put at the point of load, connect SENSE(+) to V
SENSE(–) to V
Figure 18. Effective Circuit Configuration for
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. With an external resistor between the
TRIM and SENSE(–) pins (R
set point (V
ing equation determines the required external-resistor
value to obtain a percentage output voltage change of
Tyco Electronics Corp..
%.
[V
SUPPLY
RESISTANCE
R
O
CONTACT
adj-down
(+) – V
O, adj
Single-Module Remote-Sense Operation
I
O
I
=
(–)] – [SENSE(+) – SENSE(–)]
O
) decreases (see Figure 19). The follow-
(–) at the module.

205
--------- -
V
V
%
I
I
(+)
(–)
–
SENSE(–)
SENSE(+)
2.255
dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 165 W to 198 W
V
V
O
O
O
(+) and V
adj-down
(–)


(+)
(continued)
k
DISTRIBUTION LOSSES
), the output voltage
I
O
O
CONTACT AND
(–) terminals
LOAD
O
(+) and
0.5 V
8-651
The test results for this configuration are displayed in
Figure 20. This figure applies to all output voltages.
With an external resistor connected between the TRIM
and SENSE(+) pins (R
point (V
The following equation determines the required exter-
nal-resistor value to obtain a percentage output voltage
change of %.
The test results for this configuration are displayed in
Figure 22.
The voltage between the V
must not exceed the minimum value of the output over-
voltage protection as indicated in the Feature Specifi-
cations table. This limit includes any increase in voltage
due to remote-sense compensation and output voltage
set-point adjustment (trim). See Figure 18.
If not using the trim feature, leave the TRIM pin open.
Figure 19. Circuit Configuration to Decrease
R
adj-up
ON/OFF
CASE
=
V
V
O, adj
I
I
(+)
(–)



------------------------------------------------------------------------ - 205
Output Voltage
V
) increases (see Figure 21).
O, nom
SENSE(–)
SENSE(+)
V
1
1.225 %
V
TRIM
O
O
+
(–)
(+)
adj-up
--------- -
100
%
O
), the output voltage set
(+) and V
–
1.225
R
adj-down
O
(–) terminals
–
R
2.255
LOAD
8-748 (C).b




k
11