ETC FED20-24S1P8 20watts dc-dc converter Datasheet

• 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
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.
UL E193009
TUV R50018446
CB JPTUV-005032
CE MARK
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 25ºC otherwise noted
GENERAL SPECIFICATIONS
OUTPUT SPECIFICATIONS
Output power
20 Watts max
Voltage accuracy
Full load and nominal Vin
± 1%
Voltage adjustability
± 10%
Minimum load
0%
Line regulation
Load regulation
Ripple and noise
LL to HL at Full Load
± 0.2%
10% to 100% FL
20MHz bandwidth
(Measured with a 104pF/50V MLCC)
Temperature coefficient
Transient response recovery time
10 ohms, min
9
Isolation capacitance
1000pF, max
Switching frequency
500KHz, typ
Approvals and standard
IEC60950, UL60950, EN60950
Base material
Non-conductive black plastic
300uS
3.9V
3.9V
3.9V
3.9V
6.2V
15V
18V
150% typ
Potting material
Epoxy (UL94-V0)
2.00 X 1.00 X 0.40 Inch
(50.8 X 25.4 X 10.2 mm)
Dimensions
Weight
27g (0.95oz)
1.791 x 106 hrs
MTBF (Note 4)
ENVIRONMENTAL SPECIFICATIONS
Operating temperature range
-40ºC ~ +85ºC (with derating)
Maximum case temperature
100ºC
Storage temperature range
24V nominal input
48V nominal input
Input filter (Note 1)
18 – 36VDC
36 – 75VDC
L-C type
Input surge voltage
100mS max
5V/ms,max
(Complies with ETS300 132 part 4.4)
24V input
50VDC
48V input
100VDC
Input reflected ripple (Note 2)
Nominal Vin and full load
Start up time Nominal Vin and constant resistor load
20mAp-p
10mS typ
Remote ON/OFF (Note 3)
Remote off input current
Isolation resistance
0.02% / ºC, max
Hiccup, automatics recovery
dv/dt
1600VDC, min
Nickel-coated copper
INPUT SPECIFICATIONS
Input voltage variation
Isolation voltage
Case material
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
Input voltage range
See table
75mVp-p
25% load step change
Short circuit protection
± 0.5%
Efficiency
DC-DC ON
DC-DC OFF
Nominal Vin
Open or 3.5V < Vr < 12V
Short or 0V < Vr < 1.2V
2.5mA
-55ºC ~ +105ºC
Nature convection
Thermal impedance (Note 5)
Nature convection with heat-sink
Thermal shock
12ºC/Watt
10ºC/Watt
MIL-STD-810D
Vibration
10~55Hz, 2G, 30minutes along X,Y and Z
Relative humidity
5% to 95% RH
EMC CHARACTERISTICS
Conducted emissions
EN55022
Level A
Radiated emissions
EN55022
Level A
ESD
EN61000-4-2
Perf. Criteria2
Radiated immunity
EN61000-4-3
Perf. Criteria2
Fast transient
EN61000-4-4
Perf. Criteria2
Surge
EN61000-4-5
Perf. Criteria2
Conducted immunity
EN61000-4-6
Perf. Criteria2
Input
Range
Output
Voltage
Output
Current
Input
(6)
Current
Eff
(%)
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
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
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
6000mA
6000mA
6000mA
5000mA
4000mA
1670mA
1330mA
6000mA
6000mA
6000mA
5000mA
4000mA
1670mA
1330mA
500mA
577mA
781mA
838mA
992mA
1006mA
1001mA
247mA
285mA
386mA
414mA
490mA
497mA
500mA
79
82
84
86
88
87
87
80
83
85
87
89
88
87
Note
5.
6.
7.
8.
75
50
Nature Convection
25
0
-40 -25 -10 0
EFFICIENCY (%)
OUTPUT POWER (%)
100
82
81
80
79
78
77
76
75
74
73
72
50
Nature Convection
25
0
-40 -25 -10 0
50 60 70 80 90 100
AMBIENT TEMPERATURE (ºC)
1 2
DIA. 0.04(1.0)
5
6
0.22(5.6)
1. All dimensions in Inches (mm)
2. Pin Pitch tolerance 0.014(0.35)
45
40
50
55
60
65
70
PIN CONNECTION
75
INPUT VOLTAGE (V)
FED20-48S1P5
Efficiency VS Output load
EFFICIENCY (%)
75
4
0.40
(10.2)
0.20(5.1)
AMBIENT TEMPERATURE (ºC)
FED20-48S1P5 (Note 5)
Derating Curve with Heat-Sink
3
0.40
(10.2)
0.10(2.5)
36
50 60 70 80 90 100
100
0.40
(10.2)
FED20-48S1P5
Efficiency VS Input voltage
FED20-48S1P5
Derating Curve without Heat-Sink
OUTPUT POWER (%)
0.50
(12.7)
0.80(20.3)
4.
65000uF
65000uF
33000uF
13000uF
6800uF
2200uF
755uF
65000uF
65000uF
33000uF
13000uF
6800uF
2200uF
755uF
0.60(15.2)
2.
3.
(8)
Capacitor
Load max
1.00(25.4)
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, 220F/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.
2.00(50.8)
1.
(7)
Model
Number
81
80
79
78
77
76
74
72
70
65
60
PIN
DEFINE
1
2
3
4
5
6
+ INPUT
- INPUT
+ OUTPUT
TRIM
- OUTPUT
CTRL
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed by
using the method shown below.
1
2
3
OUTPUT LOAD (A)
4
5
TRIM UP
TRIM DOWN
5
4
RU
6
4
RD
3
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