FC250F1 Lineage Power, FC250F1 Datasheet - Page 8

• Manufacturer Part Number: FC250F1
• Description: CONVERTER DC/DC 3.3V 165W OUT
• Manufacturer: Lineage Power
• Series: FC250r
• Type: Isolated with Remote On/Offr

Specifications of FC250F1

• Output: 3.3V
• Number Of Outputs: 1
• Power (watts): 165W
• Mounting Type: Through Hole
• Voltage - Input: 18 ~ 36V
• Package / Case: Module
• 1st Output: 3.3 VDC @ 50A
• Size / Dimension: 4.60" L x 2.40" W x 0.53" H (116.8mm x 61mm x 13.5mm)
• Power (watts) - Rated: 165W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 78%
• Approvals: CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

FC250F1 Power Module: dc-dc Converter;
18 Vdc to 36 Vdc Input, 3.3 Vdc Output; 165 W
Test Configurations
Note: Measure input reflected-ripple current with a simulated source
Note: Use a 0.1 µF ceramic capacitor and a 10 µF aluminum or
Figure 9. Peak-to-Peak Output Noise Measurement
Note: All measurements are taken at the module terminals. When
Figure 10. Output Voltage and Efficiency
8 8
BATTERY
SUPPLY
V
V
Figure 8. Input Reflected-Ripple Test Setup
inductance (L
tery impedance. Measure current as shown above.
tantalum capacitor. 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
Test Setup
------------------------------------------------- - x 100
Measurement Test Setup
V
V
O
I
I
I
TEST
+ – V
COPPER STRIP
+ – V
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
L
– I
TEST
– I
SENSE(+)
SENSE(–)
10.0 µF
V
V
I
O
O
O
(+)
(–)
ESR < 0.3
@ 100 kHz
100 µF
SCOPE
DISTRIBUTION LOSSES
I
S
O
offsets possible bat-
CONTACT AND
%
RESISTIVE
LOAD
LOAD
8-513 (C).m
V
8-203 (C).o
V
8-683 (C).f
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 22.2 No. 95-950, and VDE 0805
(EN60950, IEC950).
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements.
If the input meets extra-low voltage (ELV) require-
ments, then the converter’s output is considered ELV.
The input to these units is to be provided with a maxi-
mum 25 A normal-blow fuse in the ungrounded lead.
Feature Descriptions
Overcurrent Protection
To provide protection in a fault (output overload) condi-
tion, the unit is equipped with internal current-limiting
circuitry and can endure current limiting for an unlim-
ited duration. At the point of current-limit inception, the
unit shifts from voltage control to current control. If the
output voltage is pulled very low during a severe fault,
the current-limit circuit can exhibit either foldback or
tailout characteristics (output-current decrease or
increase). The unit operates normally once the output
current is brought back into its specified range.
Tyco Electronics Corp.
at 100 kHz)
Data Sheet
July 2000