236
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April-2005
20 Watt
2" x 1" Package
Single
&
&
Dual Output
POWERLINE
DC/DC-Converter
RP20-
S_DF
Series
2:1 Wide Input Voltage Range
20 Watts Output Power
1.6kVDC Isolation
Fixed Operating Frequency
Six-Sided Continuous Shield
International Safety Standard Approvals
Standard 50.8 x25.4x10.2mm Package
Efficiency to 89%
Features
Selection Guide
12V, 24V and 48V Input Types
Part Number
Input Output
Output
Input
(4)
Efficiency
(5)
Capacitive
(6)
Range
Voltage
Current
Current Load max.
VDC VDC mA mA %
F
RP20-121.5SF 9-18 1.5
6000
1014
78
65000
RP20-121.8SF 9-18 1.8
6000
1200
79
65000
RP20-122.5SF 9-18 2.5
6000
1603
82
33000
RP20-123.3SF 9-18 3.3
5000
1719
84
13000
RP20-1205SF 9-18 5
4000
2008
87
6800
RP20-1212SF 9-18 12
1670
2062
85
2200
RP20-1215SF 9-18 15
1330
2052
85
755
RP20-241.5SF 18-36 1.5
6000
493
80
65000
RP20-241.8SF 18-36 1.8
6000
584
81
65000
RP20-242.5SF 18-36 2.5
6000
781
84
33000
RP20-243.3SF 18-36 3.3
5000
838
86
13000
RP20-2405SF 18-36 5
4000
980
89
6800
RP20-2412SF 18-36 12
1670
1006
87
2200
RP20-2415SF 18-36 15
1330
1002
87
755
RP20-481.5SF 36-75 1.5
6000
247
80
65000
RP20-481.8SF 36-75 1.8
6000
288
82
65000
RP20-482.5SF 36-75 2.5
6000
391
84
33000
RP20-483.3SF 36-75 3.3
5000
414
87
13000
RP20-4805SF 36-75 5
4000
490
89
6800
RP20-4812SF 36-75 12
1670
497
88
2200
RP20-4815SF 36-75 15
1330
500
87
755
RP20-1212DF 9-18 12
833
2032
86
680
RP20-1215DF 9-18 15
667
2034
86
450
RP20-2412DF 18-36 12
833
1004
87
680
RP20-2415DF 18-36 15
667
1005
87
450
RP20-4812DF 36-75 12
833
496
88
680
RP20-4815DF 36-75 15
667
502
87
450
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237
April-2005
Derating-Graph
(Ambient Temperature)
POWERLINE
DC/DC-Converter
RP20-S_DF
Series
125
75
50
25
0
100
Ambient Temperature Range (C)
-25 -10 0
50 60
80 90 100
Output Power (%)
Natural Convection
-40
70
71C
125
75
50
25
0
100
Ambient Temperature Range (C)
-25 -10 0
50 60 70
80 90 100
Output Power (%)
Natural Convection
-40
79C
RP20-481.5SF
RP20-481.5SF With Heat Sink
83
75
74
72
Input Voltage (V)
36
Efficiency (%)
76
77
78
79
80
81
82
73
40
55 60
75
45 50
65 70
Efficiency VS Input Voltage
82
72
70
60
Output Load (A)
1
Efficiency (%)
74
76
77
78
79
80
81
65
2
3
4
5
6
Efficiency VS Output Load
RP20-481.5SF
RP20-481.5SF
Typical Characteristics
Input Voltage Range
12V nominal input
9-18VDC
24V nominal input
18-36VDC
48V nominal input
36-75VDC
Input Filter (see note 9)
L-C Type
Input Voltage Variation dv/dt
(Complies with ETS300 132 part 4.4)
5V/ms max
Input Surge Voltage (100 ms max.)
12V Input
36VDC
24V Input
50VDC
48V Input
100VDC
Input Reflected Ripple (nominal Vin and full load)
20mAp-p
Start Up Time (nominal Vin and constant resistor load)
10ms typ.
Remote ON/OFF (see note 7)
DC-DC ON
Open or 3.5V < Vr < 12V
DC-DC OFF
Short or 0V < Vr < 1.2V
Remote OFF input current
Nominal input
2.5mA
Output Power
20W max.
Output Voltage Accuracy (full Load and nominal Vin)
1%
Voltage Adjustability
10%
continued on next page
Specifications
(typical at nominal input and 25C unless otherwise noted)
Derating graphes are valid only for the shown part numbers. If you need detailed derating-information about a
part-number not shown here please contact our technical customer service at info@recom-development.at
238
www.recom-international.com
April-2005
Specifications
(typical at nominal input and 25C unless otherwise noted)
POWERLINE
DC/DC-Converter
RP20-S_DF
Series
Minimum Load (see Note 1)
Single
0%
Dual
10% of FL
Line Regulation (LL-HL at full load)
0.2%
Load Regulation (25% to 100% FL)
0.5%
Cross Regulation (asymmetrical load 25%/100% FL)
Dual
5%
Ripple and Noise (20MHz bandwith)
Single 1.5, 1.8, 2.5, 3.3V
60mVp-p
(Measured with a 1004pF/50V MLCC)
Single 5, 12, 15V
75mVp-p
Dual 5, 12, 15V
100mVp-p
Temperature Coefficient
0.02%/C, max.
Transient Response (25% load step change)
500S
Over Voltage Protection
1.5, 1.8, 2.5, 3.3V
3.9V
Zener diode clamp (only single)
5V
6.2V
12V
15V
15V
18V
Over Load Protection (% of full load at nominal Vin)
150% typ
Short Circuit Protection
Hiccup, automatic recovery
Efficiency
see ,,Selection Guide" table
Isolation Voltage
Input to Output
1.600VDC min.
Input (Output) to case
1.600VDC min.
Isolation Resistance
10
9
min.
Isolation Capacitance
1000pF max.
Operating Frequency
500kHz typ.
Operating Temperature Range
-40C to +85C(with derating)
Maximum Case Temperature
+100C
Storage Temperature Range
-55C to +105C
Thermal Impedance
Natural convection
12C/Watt
Natural convection with Heat Sink
10C/Watt
Thermal Shock
MIL-STD-810D
Vibration
10-55Hz, 2G, 30 Min. along X, Y and Z
Relative Humidity
5% to 95% RH
Case Material
Nickel-Coated copper
Base Material
Non-conductive black plastic
Potting Material
Epoxy (UL94-V0)
Conducted Emissions
EN55022
Class A
Radiated Emissions
EN55022
Class A
ESD
EN61000-4-2
Perf. Criteria 2
Radiated Immunity
EN61000-4-3
Perf. Criteria 2
Fast Transient
EN61000-4-4
Perf. Criteria 2
Surge
EN61000-4-5
Perf. Criteria 2
Conducted Immunity
EN61000-4-6
Perf. Criteria 2
Weight
27g
Dimensions
50.8 x 25.4 x 10.2mm
MTBF (see note 2)
1.791 x 10
6
Hours
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239
April-2005
Notes :
POWERLINE
DC/DC-Converter
RP20-S_DF
Series
1. The RP20 series requires a minimum of 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. BELLCORE TR-NWT-000332. Case l: 50% Stress, Temperature at 40C (Ground fixed and controlled environment).
3. Simulated source impedance of 12uH. 12uH inductor in series with +Vin.
4. Maximum value at nominal input voltage and full load of standard type.
5. Typical value at nominal input voltage and full load.
6. Test by minimum Vin and constant resistor load.
7. The ON/OFF control function can be positive or negative logic. The pin voltage is referenced to negative input.
Positive logic ON/OFF is standard, no suffix (Ex. RP20-2405SF)
Negative logic ON/OFF is marked with suffix-N (Ex. RP20-2405SF/N).
8. Heat sink is optional and P/N: 7G-0020A.
9. An external filter capacitor is required for normal operation. The capacitor should be capable of handing 1A ripple current for 48V/24V models.
RECOM suggest: Nippon chemi-con KMF series, 220F/100V, ESR 90m
.
10.See application notes for EMI-filtering.
Package Style and Pinning (mm)
3
1
2
5
4
20.30
50.80
dia.
1.0
10.20
10.20
12.70
15.20
Bottom View
6
2.50
5.10
25.40
5.6
10.20
3rd angle
projection
Trim Up
R
U
Trim Down
R
D
5
4
4
3
External Output Trimming
Output can be externally trimmed by using the method
shown below.
Pin Connections
Pin #
Single
Dual
1
+Vin
+Vin
2
-Vin
-Vin
3
+Vout
+Vout
4
Trim
Com
5
-Vout
-Vout
6
CTRL CTRL
Pin Pitch Tolerance 0.35 mm
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