Features
Regulated
Converter
Description
• 2:1 input voltage range
• 1.6kVDC isolation
• UL certified
• Efficiency up to 91%
• Six-sided continuous shield
• No minimum load required
DC/DC Converter
RP20-A
20 Watt
1“ x 1“
Single and Dual
Output
The RP20-A series are ultraminiature 2:1 input voltage range power DC/DC converters in a case half
the size of industry standard 20W converters. Despite their small size, the RP20-A converters are
fully specified devices with output currents up to 4.5 Amps, up to 91% efficiency, no minimum load,
1600VDC isolation, a built-in Class A EMC filter and low ripple/noise figures. The outputs are also fully
protected against short circuits, overcurrent and overvoltage. The no load input current is particularly
low (only 4mA/6mA).The RP20-A series will find many uses in applications where board space and/or
board height is at a premium or in battery-powered systems where standby current is important.
Selection Guide
Part Number
RP20-123.3SA
(3,4)
RP20-1205SA
(3,4)
RP20-1212SA
(3,4)
RP20-1215SA
(3,4)
RP20-243.3SA
(3,4)
RP20-2405SA
(3,4)
RP20-2412SA
(3,4)
RP20-2415SA
(3,4)
RP20-483.3SA
(3,4)
RP20-4805SA
(3,4)
RP20-4812SA
(3,4)
RP20-4815SA
(3,4)
RP20-1212DA
(3,4)
RP20-1215DA
(3,4)
RP20-2412DA
(3,4)
RP20-2415DA
(3,4)
RP20-4812DA
(3,4)
RP20-4815DA
(3,4)
Input
Voltage Range
[VDC]
9-18
9-18
9-18
9-18
18-36
18-36
18-36
18-36
36-75
36-75
36-75
36-75
9-18
9-18
18-36
18-36
36-75
36-75
Output
Voltage
[VDC]
3.3
5
12
15
3.3
5
12
15
3.3
5
12
15
±12
±15
±12
±15
±12
±15
Output
Current
[mA]
4500
4000
1670
1330
4500
4000
1670
1330
4500
4000
1670
1330
±833
±667
±833
±667
±833
±667
Input
(1)
Efficiency
(1)
Current
typ.
[mA]
[%]
1390
89
1873
89
1876
89
1868
89
688
90
916
91
928
90
913
91
344
90
463
90
464
90
462
90
1872
89
1853
90
926
90
926
90
468
89
463
90
Max. Capacitive
Load
(2)
[µF]
7000
5000
850
700
7000
5000
850
700
7000
5000
850
700
±500
±350
±500
±350
±500
±350
E196683
UL60950-1 certified
Notes:
Note1: Maximum values at nominal input voltage and full load
Note2: Max. Cap load is tested at minimum Input and constant resistive load
Model Numbering
RP20-__ __ _A/_-_
nom. Input Voltage
Output Voltage
Single
or
Dual
Notes:
Note3: standard part is without suffix “P” or “N” = without CTRL & Trim function
Trim function is only available for single output with /P or /N suffix
add suffix “P” for CTRL function with positive logic (1=ON, 0=OFF) and trim pin
add suffix “N” for CTRL function with negative logic (0=ON, 1=OFF) and trim pin
Note4: add suffix “-HC” for premounted Heat-sink with clamps
Ordering Examples
“Package
(4)
”
“CTRL Logic
(3)
”
RP20-2405SA/P = 24V input, 5V output, single, positive Logic CTRL pin
RP20-4805DA-HC = 48V input, ±5V output, dual, without CTRL pin, Heat-sink premounted
www.recom-power.com
REV.: 4/2019
PD-1
RP20-A
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Input Filter
Input Voltage Range
nom. Vin = 12VDC
nom. Vin = 24VDC
nom. Vin = 48VDC
1s max.
nom. Vin = 12VDC
Under Voltage Lockout (UVLO)
nom. Vin = 24VDC
nom. Vin = 48VDC
Input Reflected Ripple Current
(5)
Output Voltage Trimming
Minimum Load
Start-up Time
Positive Logic
ON/OFF CTRL
(6)
Negative Logic
Input Current of CTRL pin
Standby Current
Internal Operating Frequency
Ripple and Noise
DC-DC ON
DC-DC OFF
3.3Vout, 5Vout
Others
measured at 20MHz BW,
with a 1µF M/C X7R and 10µF T/C
Single
Dual
248kHz
297kHz
Power up
ON/OFF CTRL
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
refer to
“OUTPUT VOLTAGE TRIMMING”
-10%
0%
30ms
30ms
Open or 3.0VDC < V
CTRL
< 15VDC
Short or 0VDC < V
CTRL
< 1.2VDC
Short or 0VDC < V
CTRL
< 1.2VDC
Open or 3.0VDC < V
CTRL
< 15VDC
-0.5mA
+1.0mA
2mA
275kHz
330kHz
75mVp-p
100mVp-p
303kHz
363kHz
nom. Vin = 12VDC
nom. Vin = 24VDC
nom. Vin = 48VDC
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
9VDC
18VDC
36VDc
12VDC
24VDC
48VDC
Series
Condition
Min.
Typ.
Max.
Pi-Type
18VDC
36VDC
75VDC
25VDC
50VDC
100VDC
9VDC
18VDC
16VDC
36VDC
33VDC
30mAp-p
+10%
Input Surge Voltage
8VDC
Notes:
Note5: Simulated source impedance of 12µH. 12µH inductor in series with +Vin
Note6: If no suffix is specified, the control pin will be omitted. If fitted, the ON/OFF control function can be
positive or negative logic. The pin voltage is referenced to -Vin pin
RP20-1205SA
95
90
85
90
80
75
70
65
60
55
50
45
40
10
20
30
40
50
60
70
80
9Vin
12Vin
18Vin
90
100
Efficiency vs. Output Current
Efficiency vs. Input Voltage full load
95
Efficiency [%]
Efficiency [%]
85
80
75
70
65
9
10
11
12
13
14
15
16
17
18
Output Current [%]
continued on next page
www.recom-power.com
REV.: 4/2019
Input Voltage [VDC]
PD-2
RP20-A
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
RP20-2405SA
95
90
85
90
80
75
70
65
60
55
50
45
40
10
20
30
40
50
60
70
80
18Vin
24Vin
36Vin
90
100
Series
Efficiency vs. Input Voltage
95
Efficiency vs. Output Current
Efficiency [%]
Efficiency [%]
85
80
75
70
65
18
20
22
24
26
28
30
32
34
36
Output Current [%]
Input Voltage [VDC]
RP20-4805SA
95
90
85
Efficiency vs. Output Current
95
90
Efficiency vs. Input Voltage
Efficiency [%]
80
75
70
65
60
55
50
45
40
10
20
30
40
50
60
70
80
36Vin
48Vin
75Vin
90
100
Efficiency [%]
85
80
75
70
65
36
40
44
48
52
56
60
64
68
72
75
Output Current [%]
Input Voltage [VDC]
OUTPUT VOLTAGE TRIMMING
Output Voltage Trimming
Single output Powerline converters offer the feature of trimming the output voltage over a certain range around the nominal value by using external
trim resistors. No general equation can be given for calculating the trim resistors, but the following trimtables give typical values for choosing these
trimming resistors. If voltages between the given trim points are required, extrapolate between the two nearest given values to work out the resistor
required or use a variable resistor to set the output voltage. Output can be externally trimmed by using the method shown below.
-Vout
Trim up
R
U
Trim
Trim down
R
D
RP20-xx3.3SA
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
3.333
385.071
1
3.267
116.719
2
3.366
191.511
2
3.234
54.779
3
3.399
126.990
3
3.201
34.133
Trim
+Vout
4
3.432
94.730
4
3.168
23.810
5
3.465
75.374
5
3.135
17.616
6
3.498
62.470
6
3.102
13.486
7
3.531
53.253
7
3.069
10.537
8
3.564
46.340
8
3.036
8.325
9
3.597
40.963
9
3.003
6.604
10
3.63
36.662
10
2.97
5.228
[%]
[VDC]
[kW]
[%]
[VDC]
[kW]
continued on next page
www.recom-power.com
REV.: 4/2019
PD-3
RP20-A
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
RP20-xx05SA
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
5.05
253.450
1
4.95
248.340
2
5.10
125.700
2
4.90
120.590
3
5.15
83.117
3
4.85
78.007
4
5.20
61.825
4
4.80
56.715
5
5.25
49.050
5
4.75
43.940
6
5.30
40.533
6
4.70
35.423
7
5.35
34.450
7
4.65
29.340
8
5.4
29.888
8
4.60
24.778
9
5.45
26.339
9
4.55
21.229
10
5.50
23.500
10
4.50
18.390
[%]
[VDC]
[kW]
[%]
[VDC]
[kW]
Series
RP20-xx12SA
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
12.12
203.223
1
11.88
776.557
2
12.24
99.057
2
11.76
380.723
3
12.36
64.334
3
11.64
248.779
4
12.48
46.973
4
11.52
182.807
5
12.60
36.557
5
11.40
143.223
6
12.72
29.612
6
11.28
116.834
7
12.84
24.652
7
11.16
97.985
8
12.96
20.932
8
11.04
83.848
9
13.08
18.038
9
10.92
72.853
10
13.20
15.723
10
10.8
64.057
[%]
[VDC]
[kW]
[%]
[VDC]
[kW]
RP20-xx15SA
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
15.15
161.557
1
14.85
818.223
2
15.3
78.223
2
14.70
401.557
3
15.45
50.446
3
14.55
262.668
4
15.60
36.557
4
14.40
193.223
5
15.75
28.223
5
14.25
151.557
6
15.90
22.668
6
14.10
123.779
7
16.05
18.700
7
13.95
103.938
8
16.20
15.723
8
13.80
89.057
9
16.35
13.409
9
13.65
77.483
10
16.50
11.557
10
13.50
68.223
[%]
[VDC]
[kW]
[%]
[VDC]
[kW]
REGULATIONS
Parameter
Output Accuracy
Line Regulation
low line to high line,
full load
0% to 100% load
Load Regulation
10% to 90% load
Cross Regulation
Transient Response Recovery Time
www.recom-power.com
Condition
Single
Dual
Single
Dual
Single
Dual
Value
±1.0%
±0.2%
±0.5%
±0.2%
±1.0%
±0.1%
±0.8%
±5.0%
250µs
PD-4
asymmetrical 25%<>100% load
25% load step change
REV.: 4/2019
RP20-A
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
3.3Vout
5Vout
12Vout
15Vout
Series
Condition
Value
continuous, automatic recovery
3.7 - 5.4VDC
5.6 - 7.0VDC
13.5 - 19.6VDC
16.8 - 20.5VDC
150% typ., Hiccup mode
1.6kVDC/ 1 minute
1.0kVDC/ 1 minute
1GW min.
1500pF max.
Over Voltage Protection (OVP)
Over Load Protection (OLP)
Isolation Voltage
(7)
Isolation Resistance
Isolation Capacitance
zener diode clamp
% of Iout rated
I/P to O/P
I/P to O/P to case
Viso= 500VDC
Notes:
Note7: For repeat Hi-Pot testing, reduce the time and/or the test voltage
Note8: This power module is not internally fused. An input line fuse must always be used
Recom suggests: 12Vin= T4A; 24Vin= T2A; 48Vin= T1.25A slow blow types
ENVIRONMENTAL
Parameter
Operating Temperature Range
Maximum Case Temperature
Temperature Coefficient
Thermal Impedance
Operating Altitude
Operating Humidity
Pollution Degree
Thermal Shock
Vibration
MTBF
according to MIL-HDBK-217F, G.B.
Bellcore TR-NWT-000332
(9)
RP20-2415SA
100
80
60
40
20
8
0
-40
100
80
60
40
20
8
0
-40
Condition
without derating
with derating
Value
-40°C to +70°C
-40°C to +102°C
+105°C
±0.02%/K max.
@ natural convection
0.1m/s
without heat-sink
with heat-sink
17.6K/W
14.8K/W
2000m
5% - 95% RH
PD2
according to MIL-STD-810F
according to MIL-STD-810F
1477 x 10
3
hours
1766 x 10
3
hours
RP20-2415SA-HC
non-condensing
+25°C
Derating Graph
(10)
Output Power [%]
-20
0
20
40
60
Ambient Temperature [°C]
70
80 100 120
102
Output Power [%]
-20
0
20
40
60
Ambient Temperature [°C]
80 100 120
76
102
Notes:
Note9: BELLCORE TR-NWT-000332. Case l: 50% Stress, Ta= 40°C. MIL-HDBK 217F Notice 2. Ta = 25°C, full load, (controlled environment)
Note10: Derating graphs are valid only for the shown part numbers. If you need detailed derating-information about a part-number
not shown here please contact RECOM Techsupport for detailed information
www.recom-power.com
REV.: 4/2019
PD-5
Embedded System
京公网安备 11010802033920号
EEWORLD
