DFC25 SERIES
TRIPLE OUTPUT
DESCRIPTION
FEATURES
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 are integral to the design.
Selected models provide 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
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.
• Two Year Warranty
• UL/CSA/TÜV
BOTTOM VIEW
SIDE VIEW
0.040 (1.02) DIA
6 PLACES
2.50
Selection Chart - Up to 25 Watts Output Power
(63.5)
Input Range
VDC
Output
VDC
Output
9
8
7
6
5
2.75
(70.0)
Model
mA MAX
Min
18
Max Nominal
DFC25E24T5/12
DFC25E24T5/15
DFC25E48T3.3/12
DFC25E48T5/12
36
36
72
72
+5.0, ±12
+5.0, ±15
+3.3, ±12
+5.0, ±12
+5000, ±1000
+5000, ±800
+5000, ±1000
+5000, ±1000
18
36
36
3.00
(76.2)
General Specifications (1)
All Models
Units
2
1
4
0.25
(6.3)
Isolation (3)
Isolation Voltage
Input to Output
0.00
12V, 24V Input
48V Input
10µA Leakage
MIN
MIN
700
1544
Volts
pF
Input to Output Capacitance
Remote ON/OFF
TYP
700
PIN CONNECTIONS
PIN NUMBER
PIN OUT
-INPUT
+INPUT
N/C
ON/OFF
TRIM
ON Logic Level or Pin Open
MIN
2.5
0.7
10
Volts
Volts
mA
NOTE: All pins are 0.040"
diameter brass with tin plating.
1
2
3
4
5
6
7
8
9
Off Logic Level or Tie to -Input MAX
Converter Idle Current
Output Trim Function
Input Resistance
TYP
Mechanical tolerances unless
otherwise noted:
TYP
MIN
40
kΩ
X.XX dimensions: ±0.020 inches
X.XXX dimensions: ±0.005 inches
+3.3V OR +5V
COMMON
+12V OR +15V
-12V OR -15V
Programming Range
Environmental
±10
%
MIN
MAX
-25
+60
Case Operating Range (2)
Case Functional Range
Storage Range
°C
°C
MIN
MAX
-40
+105
NOTES
(1) All parameters measured at 25°C, nominal input voltage,
and full rated load unless otherwise noted.
MIN
MAX
-45
+105
°C
(2) Derate linearly to 0 Watts at 105°C ambient. Operation to
+70°C ambient with externally supplied forced air cooling,
100LFM.
Thermal Impedance
General
TYP
10
°C/Watt
(3) Case is tied to -Input, Pin 1.
MTBF (Calculated)
Unit Weight
TYP
TYP
1,000,000
2.6/71
Hours
oz/gm
Rev. 04/2000
1