FW300R1 Lineage Power, FW300R1 Datasheet - Page 8

• Manufacturer Part Number: FW300R1
• Description: CONVERTER DC/DC 28V 300W OUT
• Manufacturer: Lineage Power
• Series: FW300r
• Type: Isolated with Remote On/Offr

Specifications of FW300R1

• Output: 28V
• Number Of Outputs: 1
• Power (watts): 300W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: Module
• 1st Output: 28 VDC @ 10.7A
• 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: 90.5%
• Approvals: CE, CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

FW250R1 and FW300R1 Power Modules: dc-dc Converters:
36 Vdc to 75 Vdc Input, 28 Vdc Output; 250 W to 300 W
Test Configurations
Note: Measure input reflected-ripple current with a simulated source
Note: Use a 0.1 µF ceramic capacitor and a 330 µF aluminum or
Figure 9. Peak-to-Peak Output Noise
Note: All measurements are taken at the module terminals. When
Figure 10. Output Voltage and Efficiency
8 8
BATTERY
SUPPLY
Figure 8. Input Reflected-Ripple Test Setup
V
V
inductance (L
tery impedance. Measure current as shown above.
tantalum capacitor. The 330 µF capacitor is needed for stability.
Scope measurement should be made using a BNC socket.
Position the load between 50 mm and 76 mm (2 in. and 3 in.)
from the module.
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
O
O
RESISTANCE
(+)
(–)
=
CONTACT
TO OSCILLOSCOPE
------------------------------------------------- - x 100
V
Measurement Test Setup
Measurement Test Setup
V
O
I
I
I
+ – V
+ – V
TEST
COPPER STRIP
1.0 µF
Cs 220 µF
ESR < 0.1
@ 20 C, 100 kHz
) of 12 µH. Capacitor C
V
V
I
I
(+)
(–)
O
I
12 µH
– I
L
– I
TEST
SENSE(+)
SENSE(–)
330 µF
I
O
V
V
O
O
(+)
(–)
ESR < 0.3
@ 100 kHz
SCOPE
100 µF
DISTRIBUTION LOSSES
S
I
O
offsets possible bat-
CONTACT AND
%
RESISTIVE
LOAD
LOAD
8-203 (C).o
8-513 (C).n
8-683 (C).f
V
V
I
I
(+)
(–)
Design Considerations
Input Source Impedance
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power mod-
ule. For the test configuration in Figure 8, a 100 µF
electrolytic capacitor (ESR < 0.3
mounted close to the power module helps ensure sta-
bility of the unit. For other highly inductive source
impedances, consult the factory for further application
guidelines.
Safety Considerations
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standard,
i.e., UL 1950, CSA C22.2 No. 950-95, and VDE 0805
(EN60950, IEC950).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75 Vdc), for the module’s output to be considered meet-
ing the requirements of safety extra-low voltage
(SELV), all of the following must be true:
Note: Do not ground either of the input pins of the
The power module has extra-low voltage (ELV) outputs
when all inputs are ELV.
The input to these units is to be provided with a maxi-
mum 20 A normal-blow fuse in the ungrounded lead.
The input source is to be provided with reinforced
insulation from any hazardous voltages, including the
ac mains.
One V
the input and output pins are to be kept floating.
The input pins of the module are not operator acces-
sible.
Another SELV reliability test is conducted on the
whole system, as required by the safety agencies, on
the combination of supply source and the subject
module to verify that under a single fault, hazardous
voltages do not appear at the module’s output.
module without grounding one of the output pins.
This may allow a non-SELV voltage to appear
between the output pin and ground.
I
pin and one V
O
pin are to be grounded or both
Tyco Electronics Corp..
at 100 kHz)
March 2000
Data Sheet