FL75R10A Filter Module
75Vdc Input Maximum, 10A Maximum
FEATURES
RoHS Compliant
Small size: 25.4mm x 25.4mm x 12.0mm
(1.0” x 1.0” x 0.47”)
Industry standard footprint and pin-out
Surface mount or through hole pins
Optimized for use with high frequency
board mounted DC/DC converters
Printed-circuit board mountable
ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS 18001 certified manufacturing facility
UL/cUL 60950 (US & Canada) Recognized,
VDE 0805 (IEC60950) Licensed
Delphi Series Filter Module - FL75L07
0~75Vdc input, 7A Current Rating
The Delphi series FL75L07 filter module is the latest offering from a
world leader in power systems technology and manufacturing – Delta
Electronics, Inc. This filter module is designed to reduce the conducted
common-mode and differential-mode noise on input or output lines of
high-frequency switching power supplies and has a maximum current
rating of 7A. It has the industry standard footprint and pin-out. With
creative design technology and optimization of component placement,
Delphi FL75L07 filter module possesses outstanding electrical and
thermal performance, as well as extremely high reliability under highly
stressful operating conditions.
APPLICATIONS
Common-mode and differential-mode
filtering of power supply dc input and
output line
Computer application
Communications equipment
DATASHEET
DS_FL75L07_ 02162012
SPECIFICATIONS
GENERAL SPECIFICATIONS
Input voltage, operation
Input voltage, continuous
Operating temperature
Storage temperature
Size
Typical
Typical
Typical
Typical
0~75V
0~100V
-40℃ ~ 115℃
-55℃ ~ 125℃
OUTPUT SPECIFICATIONS
Common-mode Insertion Loss
Differential-mode Insertion Loss
50Ω circuit, 500 kHz (Typ)
50Ω circuit, 500 kHz (Typ)
40dB
70dB
(1.0”. x 1.0”x 0.47”). 25.4 x 25.4 x 12.0 mm
ELECTRICAL CHARACTERISTICS CURVES
Figure 1:
Typical common-mode insertion loss in a 50Ω circuit
Figure 2:
Typical differential-mode insertion loss in a 50Ω
circuit
Internal Schematics
Figure 3:
Internal schematics
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THERMAL CONSIDERATIONS
Thermal management is an important part of the system
design. To ensure proper, reliable operation, sufficient
cooling of the power module is needed over the entire
temperature range of the module. Convection cooling is
usually the dominant mode of heat transfer.
Hence, the choice of equipment to characterize the
thermal performance of the power module is a wind
tunnel.
THERMAL CURVES
Thermal Testing Setup
Delta’s filter modules are characterized in heated
vertical wind tunnels that simulate the thermal
environments encountered in most electronics
equipment. This type of equipment commonly uses
vertically mounted circuit cards in cabinet racks in which
the power modules are mounted.
The following figure shows the wind tunnel
characterization setup. The filter module is mounted on
a test PWB and is vertically positioned within the wind
tunnel. The space between the neighboring PWB and
the top of the power module is 6.35mm (0.25”).
Figure 5:
Temperature measurement location
The allowed maximum hot spot temperature is defined at 115
℃
FL75L07 A (Standard) Output Current vs. Ambient Temperature and Air Velocity
@ Vin = 48V (Either Orientation)
Output Current (A)
8
7
6
5
Natural
Convectio
4
100LFM
3
Thermal Derating
2
200LFM
Heat can be removed by increasing airflow over the
module. Figure 4 shows maximum output is a function of
ambient temperature and airflow rate. To enhance
system reliability, the power module should always be
operated below the maximum operating temperature. If
the temperature exceeds the maximum module
temperature, reliability of the unit may be affected.
300LFM
1
0
25
35
45
55
65
75
85
Ambient Temperature (℃)
Figure 6:
Output Current vs. Ambient Temperature and Air
Velocity @ Vin = 48V (Either Orientation)
FACING PWB
PWB
MODULE
AIR VELOCITY
AND AMBIENT
TEMPERATURE
MEASURED BELOW
THE MODULE
AIR FLOW
50.8 (2.0”)
10 (0.4”)
Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)
Figure 4:
Wind tunnel test setup
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APPLICATION
Note: C2 & C3 can be 0.01μF to 0.1μF. Select the voltage rating to meet input-to-output isolation requirements. C1 should be the recommended value
suggested in the power module data sheet.
Figure 7.
Recommended schematic when used as the input filter to a high-frequency with open-frame dc-to-dc converter
Note: Avoid routing signals or planes under the power module or the filter module. Please ensure all connections are low impedance.
Figure 8.
Recommended layout when used as the input filter to a high-frequency with open-frame dc-to-dc converter
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APPLICATION (Continued)
Note: C2 through C5 can be 0.01μF to 0.1μF. Select the voltage rating to meet input-to-output isolation requirements. C1 should be the recommended
value suggested in the power module data sheet.
Figure 9.
Recommended schematic when used as the input filter to a high-frequency with metal-cased dc-to-dc converter
Note: Avoid routing signals or planes under the power module or the filter module. Please ensure all connections are low impedance.
Figure10.
Recommended layout when used as the input filter to a high-frequency with metal-cased dc-to-dc converter
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