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FDD25 SERIES
SINGLE & DUAL OUTPUT
Characteristics
Conditions
min.
typ.
max.
unit
Switching frequency
Isolation voltage
Isolation resistance
Ambient temperature
Case temperature
Vi nom, Io nom
Input / Output
Input / Output, @ 500VDC
Operating at Vi nom, Io nom
Operating at Vi nom, Io nom
K H z
1,500
VDC
M
100
-25
o
C
o
C
Characteristics
Conditions
min.
unit
Output voltage accuracy
Vi nom, Io nom
typ.
max.
2
%
Storage temperature
M.T.B.F.
Non operational
According to MIL-HDBK-217F, GF40
-40
+ 71
+ 100
+ 100
288,000
180
2
%
Dimension
L50.8 x W50.8 x H11.9
mm
Hrs
o
C
Derating
o
% / C
Vi nom
48
Characteristics
Conditions
min.
typ.
max.
unit
Input voltage range
9
18
24
18
36
VDC
VDC
Ta min ... Ta max, Io nom
48
No load input current
24V models
48V models
20
15
mA
mA
Vi = nom
Io = 0
12V models
36
12
72
10
VDC
mA
Input voltage w/o damage
20
75
VDC
VDC
Io nom
24V models
48V models
12V models
40
VDC
Startup voltage
8.5
35
VDC
VDC
Io nom
24V models
48V models
12V models
15
VDC
Minimum load
Line regulation
Io nom, Vi min ...Vi max
Vi nom
0
10
%
%
%
Load regulation
o
% / C
Temperature coefficient
Ripple & noise
Transient recovery time
Vi nom, Io nom
Vi nom, Io nom ... 1/2 Io nom
500
2
5
0.02
%
%
S
1
%
See derating curve
Input filter
Pi type
INPUT SPECIFICATIONS
single output models
dual output models (each output)
OUTPUT SPECIFICATIONS
o
All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed
SPECIFICATION
Cooling
Free air convection
Case material
Metal
GENERAL
Vi nom, Io 0 ...Io nom, single output models
Vi nom, Io min ...Io nom, dual output models
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Voltage trim range
Vi nom,
Io nom
%
Efficiency
Vi nom, Io nom, Po / Pi
Up to 89%, See model list
3.3V output models
5V, 12V, 15V & dual
5
10
Vi nom, Io nom,
BW = 20MHz
mV
100
%
%
mV
12V, 15V & dual
3.3V & 5V models
150
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MECHANISM & PIN CONFIGURATION
PHYSICAL CHARACTERISTICS
CASE SIZE
CASE MATERIAL
WEIGHT
50.8 x 50.8 x 11.9 mm 2 x 2 x 0.47 inches
Metal
70 g
PIN ASSIGNMENT
PIN NO.
SINGLE
Vi+
NO PIN
Vi -
DERATING
NATURAL
CONVECTION
COOLING
0
100
o
Ambient Temperature [ C ]
71
100
-25
P
o
w
e
r
o
u
t
[
%
]
1
mm [inch]
50.80 [2.00]
11.94 [0.47]
DIA 1.00 [0.04]
5.08 [0.20]
2
4
5
6
7
8
GENERAL
S. D.
Trim
2.54 [0.10]
BOTTOM VIEW
4
5
1
2
5
0
.
8
0
[
2
.
0
0
]
50.80 [2.00]
22.86 [0.90]
5.08 [0.20]
6
7
8
10.16 [0.40]
45.72 [1.80]
10.16 [0.40]
10.16 [0.40]
10.16 [0.40]
10.16 [0.40]
10.16 [0.40]
Input reversed
Shunt diode built in, external fuse recommended
Output short circuit
Continuous
Remote ON / OFF
ON: opened or 5 ~ 10VDC applied, reference to input GND
OFF: -0.3 ~ 2VDC applied, reference to input GND
FDD25 SERIES
SINGLE & DUAL OUTPUT
DUAL
Vi+
Vi -
S. D.
Vo +
Vo +
com
Vo -
Vo -
Trim
S.D. : REMOTE ON / OFF
o
All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed
SPECIFICATION
CONTROL AND PROTECTION
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