DFC10 SERIES
DUAL OUTPUT
FEATURES
DESCRIPTION
High Power Density, up to 11 Watts per Cubic Inch
The dual output DFC10 Series provides power solutions to meet
Efficiencies to 79%
commercial and industrial requirements. With power densities
3
Fully Isolated, Fully Filtered Design
above 11 watts per cubic inch (0.67 watts per cm ), overcurrent
Greater than 700V Isolation
protection, and five sided shielded case, the DFC10 meets rigorous
Overcurrent Protection
needs in an industry standard case size. The 120KHz operating
Five-Side Shielded Copper Case
frequency of the DFC10 Series allows an increased power density
Ultra Wide Range Input (4:1)
while including adequate heat sinking and input/output filtering.
This eliminates the need for external components in most
applications. Full overload protection is provided by pulse-by-pulse
current limiting on models with 48V input.
Selection Chart
BOTTOM VIEW SIDE VIEW
Input Range
2.02 0.040 (1.02)
Output
(51.31) DIA TYP
VDC
Model
0.300
Power 3
(7.62)
Min Max VDC mA
W
0.000
9 36 5 850 9 1
DFC10U24D5
1.02
0.100
4
(2.54) (25.91)
9 36 12 400 10
DFC10U24D12 2
0.200
(5.08)
DFC10U24D15 9 36 15 320 10
0.500
5
DFC10U48D5 18 72 5 800 8 (12.70)
0.61
18 72 12 415 10
DFC10U48D12
(15.5)
18 72 15 330 10
DFC10U48D15
General Specifications (1)
All Models Units
Mechanical tolerances unless otherwise noted:
ON/OFF Function
X.XX dimensions: 0.03 inches
OFF Logic Level
MAX <0.4 VDC
X.XXX dimensions: 0.005 inches
or Tie Pin to -Input
Open Circuit Voltage TYP 1.4 VDC
Input Resistance TYP 2 Kohms
Pin Function
Converter Idle Current
1 + INPUT
TYP 6 mA
ON/OFF Pin Low
2 - INPUT
Isolation (2)
3 + OUTPUT
Isolation Voltage
4 COMMON
Input to Output MIN 700 VDC
5 - OUTPUT
10 A Leakage
Input to Output
TYP 350 pF
Capacitance
NOTES
Enviromental
(1) All parameters measured at Tc = 25C, nominal input voltage and full rated load unless otherwise noted.
-40
MIN
Case Operating Range, Tc C Refer to the DC/DC Technical Reference Section for the definition of terms, measurement circuits and
MAX
85
other information.
-50
MIN
(2) Case is tied to the COMMON output pin.
Case Functional Range (3) C
MAX 100
(3) The functional temperature range is intended to give an additional data point for use in evaluating this
-55 power supply. At the low functional temperature the power supply will function with no side effects,
MIN
Storage Range C
however, sustained operation at the high functional temperature will reduce expected operational life.
MAX
105
The data sheet specifications are not guaranteed beyond the case operating range.
General
(4) The case thermal impedance is specified as the case temperature rise over ambient per package watt
MTBF (Calculated) TYP 800,000 HRS dissipated.
Thermal Impedance (4) TYP 16 C/Watt
Unit Weight TYP 1.2/34 oz/gm
Mounting Options
Chassis Mounting Kit 24V CM2B2
Chassis Mounting Kit 48V CM2A2
36
0.61
(15.5)
0.000
0.800
(20.32)
0.3
(7.62)
0.000
0.42
(10.67)(800) 678-9445 FAX: (805) 388-0476
DFC10 SERIES DUAL OUTPUT
Input Parameters (1)
Model DFC10U24D5 DFC10U24D12 DFC10U24D15 DFC10U48D5 DFC10U48D12 DFC10U48D15 Units
MIN 9 18
Voltage Range VDC
MAX 36 72
Input Current Full Load TYP 450 510 510 210 265 260
mA
No Load TYP 10 15 15 2 4 4
Efficiency TYP 79 78 78 79 78 79 %
Switching Frequency TYP 100 120 kHz
Maximum Input
Overvoltage, MAX 45 85 VDC
100ms Maximum
Turn-on Time,
TYP 20 ms
1% Output Error
Output Parameters (1)
Model DFC10U24D5 DFC10U24D12 DFC10U24D15 DFC10U48D5 DFC10U48D12 DFC10U48D15 Units
Output Voltage 5 12 15 5 12 15 VDC
MIN 4.95 11.90 14.90 4.95 11.90 14.90
Output Voltage
TYP 5.00 12.00 15.00 5.00 12.00 15.00 VDC
Accuracy
MAX 5.05 12.10 15.10 5.05 12.10 15.10
MIN 0 0 0 0 0 0
Rated Load Range (3) mA
MAX 850 400 320 800 415 330
Load Regulation (4)
TYP 0.1 0.1 0.1 0.3 0.2 0.2
25% Max load to %
MAX 0.5 0.5 0.5 1.0 1.0 1.0
Max Load
Cross Regulation (5) TYP 3 3 3 3 3 3 %
TYP 0.1 0.1 0.1 0.3 0.1 0.1
Line Regulation %
MAX 0.7 0.3 0.3 0.75 0.5 0.5
Short Term Stability (6) TYP < 0.01 < 0.01 %/24Hrs
Long Term Stability TYP < 0.1 < 0.1 %/kHrs
Noise, Peak - Peak (2) TYP 100 mV
PP
RMS Noise TYP 35 mV
rms
TYP
Temperature 50
ppm/C
MAX
Coefficient 250
Short Circuit Protection Short Term Current Limit Pulse by Pulse Current Limit
NOTES
DFC10 SERIES APPLICATION ANOTES:
(1) All parameters measured at Tc = 25C, nominal input voltage and full rated load unless otherwise
noted. Refer to the DC/DC Technical Reference Section for the definition of terms, measurement
External Capacitance Requirements
circuits and other information.
No external capacitance is required for operation of the DFC10
(2) Noise is measured per DC/DC Technical Reference Section. Measurement bandwidth is 0-20 MHz.
RMS noise is measured over a 0.01-1 MHz bandwidth. To simulate standard PCB decoupling
Series. If a capacitive input source is farther than 1 from the
practices, output noise is measured with a 10f tantalum and 0.01F ceramic capacitor located 1 inch
converter, an additional capacitor may be required at the input
away from the converter.
(3) The converter may be safely operated at any load from zero to the full rating. Dynamic response of pins for proper operation. This input capacitor should have an
the converter may degrade if the converter is operated with less than 25% output load.
ESR greater than 0.25 ohms. Input capacitors with an ESR less
(4) Load regulation is defined for loading/unloading both outputs simultaneously. Load range is 25 to
than 0.25 ohms may cause peaking of the input filter and actually
100%.
(5) Cross regulation is defined for loading/unloading one output while the other output is kept
degrade circuit performance.
at full load. Load range is 25 to 100%.
(6) Short term stability is specified after a 30 minute warmup at full load, constant line and
External output capacitance is not required for operation, however
recording the drift over a 24 hour period.
it is recommended that 1mF to 10mF of tantalum and 0.001 to
0.1mF ceramic capacitance be selected for reduced system noise.
Additional output capacitance may be added for increased
filtering, but should not exceed 400mF.
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