Features
Regulated
Converters
Description
•
•
•
•
•
•
4:1 Wide input voltage range
1.6kVDC Isolation
UL, IEC/EN60950 and EN50155 certified
Efficiency up to 88%
OVP, OCP & OTP
+105°C max. case temperature
DC/DC Converter
RPA20-AW
20 Watt
3
1“x1“
Single & Dual
Output
3Y
wa
EAR
The RPA20-AW series are high power density, wide input voltage range 20W DC/DC
converters in an industry standard 1”x1” case size. Despite their small size, the RPA20-AW converters
are fully specified devices with output currents up to 6Amps, up to 88% efficiency, no minimum load,
1600VDC isolation, tight regulation and low ripple/noise figures. The outputs are also fully protected
against over-temperature, short circuits, overcurrent and overvoltage and the single output version
offers a ±10% trim range. A heatsink option is available to extend the operating temperature range.
The converters are UL and EN50155 certified and will find many uses in railway and industrial
applications where board space is at a premium.
rranty
Selection Guide
Part Number
RPA20-243.3SAW
(2,3)
RPA20-2405SAW
(2,3)
RPA20-2412SAW
(2,3)
RPA20-2415SAW
(2,3)
RPA20-2412DAW
(2,3)
RPA20-2415DAW
(2,3)
Input
Voltage Range
[VDC]
9-36
9-36
9-36
9-36
9-36
9-36
Output
Voltage
[VDC]
3.3
5
12
15
±12
±15
Output
Current
[mA]
6000
4000
1670
1330
±830
±670
Input
(1)
Efficiency
(1)
Current
typ.
[mA]
[%]
948
87
947
88
949
88
945
88
949
88
945
88
Max. Capacitive
Load
[µF]
10000
10000
1000
1000
±1000
±680
Notes:
Note1: tested at nominal Vin, full load and at +25°C ambient
E224736
UL60950-1 certified
IEC/EN60950 certified
EN50155 certified
Model Numbering
RPA20-__ __ _AW/_ _
Input Voltage
Output Voltage
Single
or
Dual
Package
(3)
CTRL Logic
(2)
Ordering Examples
RPA20-243.3SAW = 24V Input, 3.3V Output, Single, no CTRL pin
RPA20-2405DAW/P = 24V Input, 5V Output, Dual, Pos. CTRL function
RPA20-2415SAW-HC = 24V Input, 15V Output, Single, no CTRL pin, glued Heat-sink
RPA20-2415DAW/N-HC = 24V Input, 15V Output, Dual, Neg. CTRL function, glued Heat-sink
Notes:
Note2: part without suffixes is without CTRL pin, trim pin fitted
add suffix “P” for positive CTRL function (1=ON, 0=OFF), trim pin fitted
add suffix “N” for negative CTRL function (0=ON, 1=OFF), trim pin fitted
trim pin is only available for single outputs
Note3: add suffix “-HC” for glued Heat-sink (compatible with all other suffixes)
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REV.: 5/2017
PD-1
RPA20-AW
DC/DC Converter
Specifications
measured @ta = 25°C, resistive load, nominal Vin and rated Iout unless otherwise noted
BASIC CHARACTERISTICS
Parameter
Internal Input Filter
Input Voltage Range
Input Surge Voltage
Quiescent Current
Start-up time
Internal Operating Frequency
Minimum Load
Ripple and Noise
Under Voltage Lockout (UVLO)
20MHz BW, 10µF tantalum capacitor and 1µF ceramic capacitor
DC-DC ON
DC-DC OFF
Positive Logic
ON/OFF Control
Negative Logic
Input current of CTRL pin
Output Voltage Trimming
Single Outputs
-10%
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
8VDC
7VDC
0%
50mVp-p
8.5VDC
7.5VDC
9VDC
8VDC
Power up
CTRL ON/OFF
100ms max.
20mA
8ms
550kHz
9VDC
24VDC
Series
Condition
Min.
Typ.
Max.
Pi-Type
36VDC
50VDC
55mA
16ms
Open or 2.4 < Vr < 10VDC
Short or 0 < Vr < 0.8VDC
Short or 0 < Vr < 0.8VDC
Open or 2.4 < Vr < 10VDC
6mA
+10%
RPA20-243.3SAW
Efficiency vs. Output Current
100
90
80
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
9Vin
24Vin
36Vin
90
100
4.5
4
3.5
Power Dissipation vs Output Current
Efficiency [%]
Power Dissipation
3
2.5
2
1.5
1
0.5
0
0
1
2
3
4
9Vin
24Vin
36Vin
5
6
Output Current [%]
RPA20-2405SAW
100
90
80
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
9Vin
24Vin
36Vin
90
100
Output Current [A]
Power Dissipation vs Output Current
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0
0.5
1
1.5
2
2.5
3
9Vin
24Vin
36Vin
3.5
4
Efficiency vs. Output Current
Efficiency [%]
Output Current [%]
continued on next page
PD-2
REV.: 5/2017
Power Dissipation
Output Current [A]
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RPA20-AW
DC/DC Converter
Specifications
measured @ta = 25°C, resistive load, nominal Vin and rated Iout unless otherwise noted
RPA20-2412SAW
100
90
80
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
9Vin
24Vin
36Vin
90
100
Series
Power Dissipation vs Output Current
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0
9Vin
24Vin
36Vin
0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.67
Efficiency vs. Output Current
Efficiency [%]
Output Current [%]
Power Dissipation
Output Current [A]
RPA20-2415SAW
100
90
80
70
60
50
40
30
20
10
0
0
10
Efficiency vs. Output Current
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
100
0
Power Dissipation vs Output Current
Efficiency [%]
9Vin
24Vin
36Vin
20
30
40
50
60
70
80
90
Power Dissipation
9Vin
24Vin
36Vin
0
0.3
0.5
0.7
0.9
1.1
1.3
Output Current [%]
Output Current [A]
RPA20-2412DAW
100
90
80
70
60
50
40
30
20
10
0
0
10
Efficiency vs. Output Current
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
100
0
Power Dissipation vs Output Current
Efficiency [%]
9Vin
24Vin
36Vin
20
30
40
50
60
70
80
90
Power Dissipation
9Vin
24Vin
36Vin
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7
0.83
Output Current [%]
continued on next page
www.recom-power.com
REV.: 5/2017
Output Current [A]
PD-3
RPA20-AW
DC/DC Converter
Specifications
measured @ta = 25°C, resistive load, nominal Vin and rated Iout unless otherwise noted
RPA20-2415DAW
100
90
80
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
9Vin
24Vin
36Vin
90
100
Series
Power Dissipation vs Output Current
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0
0.1
0.2
0.3
0.4
0.5
9Vin
24Vin
36Vin
0.6
0.67
Efficiency vs. Output Current
Efficiency [%]
Output Current [%]
Power Dissipation
Output Current [A]
OUTPUT TRIM
Output Voltage Trimming
RPA20-AW converters offer the feature of trimming the output voltage over a certain range around the nominal value by using external trim
resistors. The values for trim resistors shown in trim tables below are according to standard E96 values; therefore, the specified voltage may
slightly vary.
TRIM DOWN
TRIM UP
4
R
1
5
6
5
R
2
RPA20-243.3SAW
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
PD-4
1
3.33
402
1
3.27
402
2
3.36
169
2
3.23
191
3
3.39
100
3
3.20
113
4
3.43
75
4
3.17
75
5
3.46
47.5
5
3.14
52.3
6
3.49
34.8
6
3.10
39.2
7
3.53
26.1
7
3.07
26.7
8
3.56
17.8
8
3.04
20
9
3.59
12.1
9
3.0
12.1
10
3.63
8.06
10
2.97
8.06
%
Volts
kOhms
%
Volts
kOhms
RPA20-2405SAW
1
5.05
604
1
4.95
604
2
5.10
243
2
4.90
287
3
5.15
147
3
4.85
169
4
5.20
95.3
4
4.80
124
5
5.25
68.1
5
4.75
105
6
5.30
39.2
6
4.70
78.7
7
5.35
34.8
7
4.65
54.9
8
5.40
22.1
8
4.60
39.2
9
5.45
15
9
4.55
15
10
5.50
8.06
10
4.50
0.5
%
Volts
kOhms
%
Volts
kOhms
RPA20-2412SAW
1
12.12
604
1
11.88
750
2
12.24
267
2
11.76
309
3
12.36
162
3
11.64
200
4
12.48
105
4
11.52
124
5
12.6
75
5
11.40
6
12.72
499
6
11.28
7
12.84
40.2
7
11.16
45.3
8
12.96
24.9
8
11.04
32.4
9
13.08
18.2
9
10.92
20
10
13.20
10
10
10.80
12.1
%
Volts
kOhms
%
Volts
kOhms
90.9
64.9
continued on next page
REV.: 5/2017
www.recom-power.com
RPA20-AW
DC/DC Converter
Specifications
measured @ta = 25°C, resistive load, nominal Vin and rated Iout unless otherwise noted
RPA20-2415SAW
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
15.15
1000
1
14.85
1000
2
15.30
243
2
14.70
348
3
15.45
200
3
14.55
210
4
15.60
130
4
14.40
140
5
15.75
90.9
5
14.25
95.3
6
15.90
61.9
6
14.10
68.1
7
16.05
40.2
7
13.95
45.3
8
16.20
30.1
8
13.80
30.1
9
16.35
24.9
9
13.65
18.2
10
16.50
10
10
13.50
8.06
%
Volts
kOhms
%
Volts
kOhms
Series
REGULATION
Parameter
Output Accuracy
Line Regulation
Condition
Single & Dual
low line to high line
Single
Dual
Value
±0.1% typ., ±2.0% max.
±0.1% typ., ±0.2% max.
±0.1% typ., ±0.5% max.
±0.3%
±0.2%
±0.1%
±1.0%
±2.0% typ., ±3.0% max.
±3.0% typ.
250µs typ.
Load Regulation
Cross Regulation
Transient Response
3.3Vout
5Vout
12Vout, 15Vout
±12Vout, ±15Vout
asymmetrical 25%<>100% load
50-75%, full load, 0.1A/µs
25% load step change
PROTECTION
Parameter
Short Circuit Protection (SCP)
Over Voltage Protection (OVP)
Over Current Protection (OCP)
Over Temperature Protection (OTP)
Isolation Voltage
(5)
Isolation Resistance
Isolation Capacitance
Insulation Grade
Notes:
Note4: An input fuse is required if the mains supply is not over-current protected. Recommended fuse: 3A slow blow type
Note5: For repeat Hi-Pot testing, reduce the time and/or the test voltage
I/P to O/P
tested for 1 minute
Condition
below 100mΩ
Value
continuous, auto recovery
115%-150% Output Voltage, Hiccup, auto recovery
110%-160% Output Current, Hiccup
115°C ±5°C
1.6kVDC
10MΩ min.
1100pF typ.
basic
ENVIRONMENTAL
Parameter
Operating Temperature Range
(6)
Maximum Case Temperature
Temperature Coefficient
Thermal Impedance
Operating Altitude
Operating Humidity
Shock
Vibration
MTBF
continued on next page
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REV.: 5/2017
PD-5
Condition
Value
-40°C to [refer to thermal calculation]
+105°C
0.02%/°C
please refer to table 1
2000m
95% RH
30G, 11ms, 3 times along X,Y and Z axis
10-500Hz, 2.4G, 30mins along X,Y and Z axis
5800 x 10
3
hours
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