![](http://datasheet.mmic.net.cn/330000/FDC40_datasheet_16397197/FDC40_3.png)
Isolated and Regulated 40 WATT Modular DC/DC Converters
FDC40
series
300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082 Fax: 508-823-8181
WWW.ASTRODYNE.COM
INPUT SPECIFICATIONS
Input Voltage Ranges:
Input Filter
12 VDC Nominal
24 VDC Nominal
48 VDC Nominal
Pi Type
9-18 VDC
18-36 VDC
36-72 VDC
OUTPUT SPECIFICATIONS
Voltage and Current
Load Regulation
Line Regulation
Temperature Coefficient
Ripple/Noise
Voltage Stability
Short Circuit Protection
Overvoltage Protection Threshold: 3.3V Output
See Selection Chart
singles: +/-0.5%
duals: +/-1%
triples: 5 V:+/-2%, Aux: +/-5%
singles: +/-0.5%
duals: +/-1%
triples: 5V:+/-2%, Aux:+/-5%
+/-0.02%/DegC
1% Pk-Pk of Vout, typ
(singles/duals)
(triples)
5 V:+/-2%, Aux: +/-5%
Continuous, self-recovering
+/- 2%
3.9Volts
6.2Volts
15Volts
18Volts
5V Output
12V Output
15V Output
GENERAL SPECIFICATIONS
On/Off Control
Input-Out Isolation
Isolation Resistance
Efficiency
Switching Frequency
(Ref to - Input pin)
Logic “1”/Open=ON
Logic “0”/GND=OFF
1600VDC
10000 M Ohms
82%, typ
185Khz, typ
ENVIRONMENTAL SPECIFICATIONS
Oper. Temperature (Case)
Storage Temperature
Maximum Case Temp
MTBF
-25 to +85 DegC(see derate)
-55 to +125 DegC
*
100 DegC
*
1.61 MHrs
MIL-HDBK-217F TA=25C FL
PHYSICAL SPECIFICATIONS
Case Material
Construction
Weight
Nickel-Coated Copper
Non-Conductive Base
Fully Encapsulated
4.5 oz, (126g)
*
These are stress ratings. Exposure of the devices to any of these conditions
may adversely affect long term reliability. Proper operation under conditions
other than the standard operating conditions is neither warranteed nor implied.
All specifications are typical at nominal input, full load, and 25DegC unless
otherwise noted
Astrodyne products are not authorized or warranteed for use
as critical components in life support systems, equipment used
in hazardous environments, nuclear controls systems, or other
mission-critical applications.
45
55
65
75
36
40
80
81
INPUT VOLTAGE (V)
%
(
Y
C
N
E
I
C
I
F
E
FDC40-48S05
Efficiency VS Input Voltage
90
89
88
87
86
85
84
83
82
60
50
70
6
8
0.5
1
45
50
OUTPUT LOAD (A)
%
(
Y
C
N
E
I
C
I
F
E
FDC40-48S05
Efficiency VS Output load
90
89
88
86
84
82
80
70
60
2
3
4
5
7
EFFICIENCY CURVES