OUTPUT SPECIFICATIONS
Output power
40 Watts max
Voltage accuracy Full load and nominal Vin
Single & Dual
Triple 3.3V/5V
Auxiliary
2%
2%
5%
Voltage adjustability
10%
Minimum load (Note 1)
FDC40-XXD3305 3.3V output
Others
20% min
10% of FL
Line regulation LL to HL at Full Load
Single
Dual
Triple 3.3V/5V
Auxiliary
0.5%
1%
2%
5%
Load regulation 10% to 100% FL
Single
Dual
Triple 3.3V/5V
Auxiliary
0.5%
1%
2%
5%
Cross regulation (Note 2)
Dual
Triple 3.3V/5V
Auxiliary
1%
1%
5%
Ripple and noise 20MHz bandwidth
1%/p-p of Vout max
Temperature coefficient
I
0.02% / C, max
Transient response recovery time
25% load step change
500uS
Over voltage protection
Zener diode clamp
3.3V output
5V output
12V output
15V output
3.9V
6.2V
15V
18V
Short circuit protection
Hiccup, automatics recovery
INPUT SPECIFICATIONS
Input voltage range
12V nominal input
24V nominal input
48V nominal input
9 18VDC
18 36VDC
36 75VDC
Input filter
Pi
type
Input surge voltage
100mS max
12V input
24V input
48V input
36VDC
50VDC
100VDC
Input reflected ripple (Note 3) Nominal Vin and full load
40mAp-p
Start up time
Nominal Vin and constant resistor load
25mS typ
Remote ON/OFF
(Note 4)
Remote off input current
DC-DC ON
DC-DC OFF
Nominal input
Open or 3.5V < Vr < 12V
Short or 0V < Vr < 1.2V
30mA
GENERAL SPECIFICATIONS
Efficiency
See table
Isolation voltage
1600VDC, min
Isolation resistance
10
9
ohms, min
Isolation capacitance
500Pf, max
Switching frequency
185KHz, typ
Design meet safety standard
UL1950, EN60950
Case material
Nickel-coated copper
Base material
Non-conductive black FR4
Potting material
Epoxy (UL94-V0)
Dimensions
3.00 X 2.60 X 0.40 Inch
(70.2 X 66.0 X 10.2 mm)
Weight
125g (4.4oz)
MTBF (Note 5)
1.590 x 10
6
hrs
ENVIRONMENTAL SPECIFICATIONS
Operating temperature range
-40C ~ +85C (with derating)
Maximum case temperature
+100C
Storage temperature range
-55C ~ +105C
Thermal impedance Nature convection
5.7C/watt
Thermal shock
MIL-STD-810D
Vibration
10~55Hz, 2G, 30minitues along X,Y and Z
Relative humidity
5% to 95% RH
EMC CHARACTERISTICS
Conducted emissions
EN55022
Level A
Radiated emissions
EN55022
Level A
Conducted immunity
EN61000-4-6
Perf. Criteria2
Radiated immunity
EN61000-4-3
Perf. Criteria2
Surge EN61000-4-5
Perf.
Criteria2
Fast transient
EN61000-4-4
Perf. Criteria2
ESD EN61000-4-2
Perf.
Criteria2
The FDC40 series offer 40 Watts of output power from a 3 x 2.6 x 0.4 inch package.
The FDC40 series have 2:1 wide input voltage of 9-18, 18-36 and 36-75VDC. The FDC40
features 1600VDC of isolation, short-circuit and over-voltage protection, as well as six
sided shielding. Designed meets the safety of EN60950 and UL1950. All models are
particularly suited to telecommunications, industrial, mobile telecom and test equipment
applications.
T E C H N I C A L S P E C I F I C AT I O N
All specifications are typical at nominal input, full load and 25C otherwise noted
40 WATTS OUTPUT POWER
2:1 WIDE INPUT VOLTAGE RANGE
DESIGN MEET SAFETY STANDARD
SIX-SIDED CONTINUOUS SHIELD
HIGH EFFICIENCY UP TO 90%
STANDARD 3" X 2.6" X 0.4" PACKAGE
FIXED SWITCHING FREQUENCY
Patent No. 460344
Model
Number
Input
Range
Output
Voltage
Output
Current
Input
Current
(6)
Eff
(7)
(%)
Capacitor
(8)
Load max
FDC40-12S33
9 18 VDC
3.3 VDC
10000mA
3530mA
83
25800uF
FDC40-12S05
9 18 VDC
5 VDC
8000mA
4170mA
84 13600uF
FDC40-12S12
9 18 VDC
12 VDC
3400mA
4100mA
87
2400uF
FDC40-12S15
9 18 VDC
15 VDC
2700mA
4100mA
87
1550uF
FDC40-12D05
9 18 VDC
5 VDC
+7000 / -1000mA
4330mA
81
12000 / 1700uF
FDC40-12D12
9 18 VDC
12 VDC
1800mA
4550mA
83
1200uF
FDC40-12D15
9 18 VDC
15 VDC
1400mA
4430mA
83
750uF
FDC40-12D3305
9 18 VDC
3.3 / 5VDC
4000 / 4000mA
3730mA
78
10300 / 6800uF
FDC40-12T0512
9 18 VDC
5 / 12 VDC
4000 / 850mA
4490mA
79
6800 / 590uF
FDC40-12T0515
9 18 VDC
5 / 15 VDC
4000 / 680mA
4430mA
80
6800 / 380uF
FDC40-24S33
18 36 VDC
3.3 VDC
10000mA
1720mA
84
25800uF
FDC40-24S05
18 36 VDC
5 VDC
8000mA
2010mA
87
13600uF
FDC40-24S12
18 36 VDC
12 VDC
3400mA
1980mA
90
2400uF
FDC40-24S15
18 36 VDC
15 VDC
2700mA
2000mA
88
1550uF
FDC40-24D05
18 36 VDC
5 VDC
+7000 / -1000mA
2130mA
82
12000 / 1700uF
FDC40-24D12
18 36 VDC
12 VDC
1800mA
2170mA
87
1200uF
FDC40-24D15
18 36 VDC
15 VDC
1400mA
2140mA
86
750uF
FDC40-24D3305
18 36 VDC
3.3 / 5VDC
4000 / 4000mA
1840mA
79
10300 / 6800uF
FDC40-24T0512
18 36 VDC
5 / 12 VDC
4000 / 850mA
2180mA
81
6800 / 590uF
FDC40-24T0515
18 36 VDC
5 / 15 VDC
4000 / 680mA
2160mA
82
6800 / 380uF
FDC40-48S33
36 75 VDC
3.3 VDC
10000mA
850mA
85
25800uF
FDC40-48S05
36 75 VDC
5 VDC
8000mA
980mA
89
13600uF
FDC40-48S12
36 75 VDC
12 VDC
3400mA
1000mA
89
2400uF
FDC40-48S15
36 75 VDC
15 VDC
2700mA
1000mA
88
1550uF
FDC40-48D05
36 75 VDC
5 VDC
+7000 / -1000mA
1060mA
84
12000 / 1700uF
FDC40-48D12
36 75 VDC
12 VDC
1800mA
1100mA
86
1200uF
FDC40-48D15
36 75 VDC
15 VDC
1400mA
1100mA
86
750uF
FDC40-48D3305
36 75 VDC
3.3 / 5VDC
4000 / 4000mA
910mA
80
10300 / 6800uF
FDC40-48T0512
36 75 VDC
5 / 12 VDC
4000 / 850mA
1060mA
83
6800 / 590uF
FDC40-48T0515
36 75 VDC
5 / 15 VDC
4000 / 680mA
1060mA
83
6800 / 380uF
Note
1.
The FDC40 series required a minimum 10% loading on the output to maintain
specified regulation. Operation under no-load condition will not damage these
devices, however they may not meet all listed specification.
2. Cross
regulation:
Dual output--Asymmetrical load 25% to 100% full load
Triple output 3.3V / 5V 100% load and one of auxiliary 100% load, other
auxiliary load change from 25% to 100% load
3. Simulated source impedance of 12uH. 12uH inductor in series with +Vin.
4. The ON-OFF control pin voltage is reference to negative input.
5. BELLCORE TR-NWT-000332. Case I: 50% Stress, Temperature at 40C.
(Ground fixed and controlled environment)
6. Maximum value at nominal input voltage and full load
7. Typical value at nominal input voltage and full load
8. Test by minimum Vin and constant resistor load.
50 60 70 80 90 100
-40 -25
0
-10
25
50
75
100
0
AMBIENT TEMPERATURE (C)
OUTP
UT
P
O
W
E
R (
%
)
FDC40-48S05 Derating Curve
Nature convection
45 55 65
75
36
40
80
81
INPUT VOLTAGE (V)
EFF
I
C
I
EN
C
Y
(
%
)
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)
EFF
I
C
I
EN
C
Y
(
%
)
FDC40-48S05
Efficiency VS Output load
90
89
88
86
84
82
80
70
60
2 3 4 5
7
PIN CONNECTION
PIN
SINGLE
1
CTRL
2
+ INPUT
3
- INPUT
4
SYNC
5
TRIM DOWN
6
TRIM
DUAL
CTRL
+ INPUT
- INPUT
SYNC
+ OUTPUT
COMMON
TRIPLE
CTRL
+ INPUT
- INPUT
SYNC
+ AUX
COMMON (AUX)
3.3V / 5V
CTRL
+ INPUT
- INPUT
SYNC
+3.3V
COMMON
7
TRIM UP
- OUTPUT
- AUX
+ 5V
8
+ OUTPUT
TRIM
+ OUTPUT(PRIMARY)
TRIM
9
- OUTPUT
NC
COMMON(PRIMARY)
NC
10
NO PIN
NC
TRIM
NC
1. All dimensions in Inches (mm)
2. Pin pitch tolerance
I
0.014(0.35)
10
4
3
2
1
6 7
8
9
5
2.60 (66.0)
3.0
0
(
76.
2)
0.70 (17.8)
0.60 (15.2)
0.40
(10.2)
0.40
(10.2)
0.40
(10.2)
0.40
(10.2)
0.40
(10.2)
0.50
(12.7)
0.30 (7.6)
0.30 (7.6)
2.5
0
(
63.
5)
0.3
0
(
7
.6
)
0.40
(10.2)
D
I
A
.
0.
04
(1.
0
)
Bottom
View
0.32
(8.0)
Application of synchronization
1. The unit is capable of external synchronization from an
independent time base with a switching rate between 200kHz
and 215kHz
2. The amplitude of the synchronizing pulse train is TTL
compatible
3. The duty cycle of the CLK should be 20% high and 80% low
4. Synchronization is referenced to negative input (-Vin)
CTRL
+
-
3
2
1
Converter
ON/OFF Control
+ Vin
- Vin
ON/OFF Control application
Sync
+
-
3
2
4
Converter 1
+ Vin
- Vin
+
-
3
2
4
Converter 2
CLK
20%
80%
CLK Signal
2N7000
Sync
Output can be externally trimmed by
using the method shown below.
( ) for dual output trim
[ ] for triple output trim
{ } XXD3305 only trim 3.3V/5V
EXTERNAL OUTPUT TRIMMING
7 (7) [9] {6}
6 (8) [10] {8}
TRIM UP
R
U
6 (8) [10] {8}
5 (5)
[8]
{5}
TRIM DOWN
R
D
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