•
1.5V, 1.8V, 2.5V, 3.3V, 5V, 12V, 15VDC OUTPUT
•
OUTPUT CURRENT UP TO 6A
•
20 WATTS MAXIMUM OUTPUT POWER
•
2:1 WIDE INPUT VOLTAGE RANGE
•
SAFETY APPROVAL PENDING
•
SIX-SIDED CONTINUOUS SHIELD
•
HIGH EFFICIENCY UP TO 89%
•
STANDARD 2” x 1” x 0.4” PACKAGE
•
FIXED SWITCHING FREQUENCY
UL E193009
TUV R50018446
CB JPTUV-005032
CE MARK
The FED20 series offer 20 watts of output power from a 2 x 1 x 0.4 inch package .
The FED20 series with 2:1 wide input voltage of 18-36 and 36-75VDC and features
1600VDC of isolation, short-circuit and over-voltage protection, as well as six sided
shielding. A safety approvals to 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
OUTPUT SPECIFICATIONS
Output power
Voltage accuracy
Voltage adjustability
Minimum load
Line regulation
Load regulation
Ripple and noise
LL to HL at Full Load
10% to 100% FL
20MHz bandwidth
(Measured with a 104pF/50V MLCC)
25% load step change
Full load and nominal Vin
All specifications are typical at nominal input, full load and 25ºC otherwise noted
GENERAL SPECIFICATIONS
20 Watts max
± 1%
± 10%
0%
± 0.2%
± 0.5%
75mVp-p
Efficiency
Isolation voltage
Isolation resistance
Isolation capacitance
Switching frequency
Approvals and standard
Case material
Base material
Potting material
Dimensions
Weight
MTBF (Note 4)
See table
1600VDC, min
10 ohms, min
1000pF, max
500KHz, typ
IEC60950, UL60950, EN60950
Nickel-coated copper
Non-conductive black plastic
Epoxy (UL94-V0)
2.00 X 1.00 X 0.40 Inch
(50.8 X 25.4 X 10.2 mm)
27g (0.95oz)
1.791 x 10
6
hrs
9
Temperature coefficient
Transient response recovery time
1.5V output
1.8V output
2.5V output
Over voltage protection
3.3V output
Zener diode clamp
5V output
12V output
15V output
Over load protection
% of FL at nominal input
Short circuit protection
I0.02%
/ ºC, max
300uS
3.9V
3.9V
3.9V
3.9V
6.2V
15V
18V
150% typ
ENVIRONMENTAL SPECIFICATIONS
Operating temperature range
Maximum case temperature
Storage temperature range
Nature convection
Nature convection with heat-sink
-40ºC ~ +85ºC (with derating)
100ºC
-55ºC ~ +105ºC
12ºC/Watt
10ºC/Watt
Hiccup, automatics recovery
INPUT SPECIFICATIONS
Input voltage range
Input filter (Note 1)
Input voltage variation
Input surge voltage
100mS max
Input reflected ripple (Note 2)
Remote ON/OFF (Note 3)
DC-DC ON
DC-DC OFF
Nominal Vin
Open or 3.5V < Vr < 12V
Short or 0V < Vr < 1.2V
2.5mA
dv/dt
24V nominal input
48V nominal input
18 – 36VDC
36 – 75VDC
L-C type
5V/ms,max
(Complies with ETS300 132 part 4.4)
24V input
50VDC
48V input
100VDC
Nominal Vin and full load
20mAp-p
10mS typ
Thermal impedance (Note 5)
Thermal shock
Vibration
Relative humidity
MIL-STD-810D
10~55Hz, 2G, 30minutes along X,Y and Z
5% to 95% RH
EMC CHARACTERISTICS
Conducted emissions
Radiated emissions
ESD
Radiated immunity
Fast transient
Surge
Conducted immunity
EN55022
EN55022
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
Level A
Level A
Perf. Criteria2
Perf. Criteria2
Perf. Criteria2
Perf. Criteria2
Perf. Criteria2
Start up time Nominal Vin and constant resistor load
Remote off input current
Model
Number
FED20-24S1P5
FED20-24S1P8
FED20-24S2P5
FED20-24S3P3
FED20-24S05
FED20-24S12
FED20-24S15
FED20-48S1P5
FED20-48S1P8
FED20-48S2P5
FED20-48S3P3
FED20-48S05
FED20-48S12
FED20-48S15
Input
Range
18 – 36 VDC
18 – 36 VDC
18 – 36 VDC
18 – 36 VDC
18 – 36 VDC
18 – 36 VDC
18 – 36 VDC
36 – 75 VDC
36 – 75 VDC
36 – 75 VDC
36 – 75 VDC
36 – 75 VDC
36 – 75 VDC
36 – 75 VDC
Output
Voltage
1.5 VDC
1.8 VDC
2.5 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
1.5 VDC
1.8 VDC
2.5 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
Output
Current
6000mA
6000mA
6000mA
5000mA
4000mA
1670mA
1330mA
6000mA
6000mA
6000mA
5000mA
4000mA
1670mA
1330mA
Input
(6)
Current
500mA
577mA
781mA
838mA
992mA
1006mA
1001mA
247mA
285mA
386mA
414mA
490mA
497mA
500mA
Eff
(%)
79
82
84
86
88
87
87
80
83
85
87
89
88
87
(7)
Capacitor
Load max
65000uF
65000uF
33000uF
13000uF
6800uF
2200uF
755uF
65000uF
65000uF
33000uF
13000uF
6800uF
2200uF
755uF
(8)
Note
1.
An external filter capacitor is required for normal operation. The capacitor should be
capable of handing 1A ripple current for 48V/24V models. Power mate suggest: Nippon
chemi-con KMF series, 220 F/100V, ESR 90m .
Simulated source impedance of 12uH. 12uH inductor on series with +Vin.
The ON/OFF control function. There are positive logic (standard) and negative logic
(option). The pin voltage is referenced to negative input
To order negative logic ON/OFF control add the suffix-N (Ex: FED20-24S05-N)
BELLCORE TR-NWT-000332. Case I: 50% Stress, Temperature at 40ºC. (Ground fixed
and controlled environment).
Heat sink is optional and P/N: 7G-0020A.
Maximum value at nominal input voltage and full load.
Typical value at nominal input voltage and full load.
Test by minimum Vin and constant resistor load.
FED20-48S1P5
Derating Curve without Heat-Sink
82
81
80
79
78
77
76
75
74
73
72
36
40
45
50
55
60
65
70
75
1.00(25.4)
0.50
(12.7)
DIA. 0.04(1.0)
0.60(15.2)
0.80(20.3)
0.40
(10.2)
0.40
(10.2)
0.40
(10.2)
2.
3.
4.
5.
6.
7.
8.
2.00(50.8)
3
4
5
FED20-48S1P5
Efficiency VS Input voltage
1 2
6
OUTPUT POWER (%)
100
75
50
25
0
-40 -25 -10 0
EFFICIENCY (%)
0.10(2.5)
0.20(5.1)
0.22(5.6)
Nature Convection
1. All dimensions in Inches (mm)
2. Pin Pitch tolerance
I0.014(0.35)
50 60 70 80 90 100
PIN CONNECTION
PIN
1
2
3
4
5
6
DEFINE
+ INPUT
- INPUT
+ OUTPUT
TRIM
- OUTPUT
CTRL
AMBIENT TEMPERATURE (ºC)
INPUT VOLTAGE (V)
FED20-48S1P5 (Note 5)
Derating Curve with Heat-Sink
81
80
79
78
77
76
74
72
70
65
60
FED20-48S1P5
Efficiency VS Output load
OUTPUT POWER (%)
100
75
50
25
0
-40 -25 -10 0
EFFICIENCY (%)
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed by
using the method shown below.
TRIM UP
TRIM DOWN
Nature Convection
5
1
2
3
4
5
6
4
50 60 70 80 90 100
R
U
4
3
R
D
AMBIENT TEMPERATURE (ºC)
OUTPUT LOAD (A)
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