DFC25 Triple-Output DC-DC Series Data Sheet
Features
Description
•
RoHS lead solder exemption compliant
The DFC25 Series dc-dc converter provides three output voltages from a single 12,
24, or 48 volt nominal input for industrial and datacom equipment. Available output
power ranges up to 25 watts. Excellent noise performance is attained via an
aluminum case, toroidal magnetics, and double shielded transformers. Common
mode and differential mode input filtering is integral to the design. Selected models
provides 1544 volts isolation from input to output.
• Up to 25 watts with triple outputs
• +3.3V or +5V main outputs
• Remote On/Off
• Common and differential mode input filters
• Main output trim
• Efficiencies to 81%
• Operation from -25°C up to 85°C
• 700/1544V isolation
• Two-year warranty
The input and output sections of the DFC25 Series are protected from overvoltage
transients via internal circuitry. Same voltage single output units of the DFC25
family may be connected in parallel to achieve additional output current.
• UL/CSA/TÜV pending
Selection Chart - Up to 25 Watts Output Power
BOTTOM VIEW
SIDE VIEW
Input Range
Output
Output
0.040 (1.0ꢁ) DIA
9 PLACES
ꢁ.ꢀ0
Model
VDC
VDC
mA MAX
(63.ꢀ)
Min
18
18
18
36
36
36
Max
36
Nominal
3.3, 1ꢀ
ꢀ.0, 1ꢁ
ꢀ.0, 1ꢀ
3.3, 1ꢁ
ꢀ.0, 1ꢁ
ꢀ.0, 1ꢀ
9
8
7
6
ꢀ
ꢁ.7ꢀ
(70.0)
DFC25E24T3.3/15
DFC25E24T5/12
DFC25E24T5/15
DFC25E48T3.3/12
DFC25E48T5/12
DFC25E48T5/15
ꢀ000, 800
ꢀ000, 1000
ꢀ000, 800
ꢀ000, 1000
ꢀ000, 1000
ꢀ000, 800
36
36
7ꢁ
7ꢁ
3.00
(76.ꢁ)
7ꢁ
Model numbers highlighted in yellow or shaded are not recommended for new designs.
General Specifications (1)
ꢁ
1
4
0.ꢁꢀ
(6.3)
0.00
All Models
Units
Isolation (3)
Isolation Voltage
Input to Output
1ꢁV, ꢁ4V Input
48V Input
10µA Leakage
MIN
MIN
700
1ꢀ44
Volts
pF
NOTE: All pins are 0.040"
PIN CONNECTIONS
diameter brass with tin plating.
Input to Output Capacitance
Remote ON/OFF
TYP
700
PIN NUMBER
PIN OUT
-INPUT
1
ꢁ
3
4
ꢀ
6
7
8
9
Mechanical tolerances unless
otherwise noted:
X.XX dimensions: 0.0ꢀ0 inches
X.XXX dimensions: 0.00ꢁ inches
+INPUT
N/C
ON/OFF
TRIM
ON Logic Level or Pin Open
MIN
ꢁ.ꢀ
0.7
10
Volts
Volts
mA
Off Logic Level or Tie to -Input MAX
Converter Idle Current
Output Trim Function
Input Resistance
TYP
+3.3V OR +ꢀV
COMMON
+1ꢁV OR +1ꢀV
-1ꢁV OR -1ꢀV
TYP
MIN
40
10
k
Programming Range
Environmental
%
MIN
MAX
-ꢁꢀ
+60
Case Operating Range (ꢁ)
Case Functional Range
Storage Range
°C
°C
NOTES
MIN
MAX
-40
+10ꢀ
(1) All parameters measured at ꢁꢀ °C, nominal input voltage,
and full rated load unless otherwise noted. Refer to the
Technical Reference Section for the definition of
MIN
MAX
-4ꢀ
+10ꢀ
°C
terms, measurement circuits, and other information.
Thermal Impedance
General
TYP
10
°C/Watt
(ꢁ) Derate linearly to 0 Watts at 10ꢀ °C ambient. Operation to
+70 °C ambient with externally supplied forced air cooling,
100 LFM. Consult the factory for -40 °C operation.
MTBF (Calculated)
Unit Weight
TYP
TYP
1,000,000
ꢁ.6/71
Hours
oz/gm
(3) Case is tied to -Input, Pin 1.
JAN 26, 2006 revised to MAR 20, 2007
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