The RPP40 and RPP50 series 2:1 input range DC/DC converters are ideal for high end industrial applications and
COTS Military applications where a high ambient operating temperature converter is required. Although the case
size is compact, the converters contains a built-in EN55022 Class B / FCC Level B EMC filter without the need for
any external components.
40/50 Watt
Single
Output
Selection Guide
24V and 48V Input Types
Part Number
Input
Range
VDC
18-36
18-36
18-36
18-36
36-75
36-75
36-75
36-75
18-36
18-36
18-36
18-36
36-75
36-75
36-75
36-75
Output
Voltage
VDC
3.3
5
12
15
3.3
5
12
15
3.3
5
12
15
3.3
5
12
15
Output
Current
A
12
8
3.33
2.67
12
8
3.33
2.67
15
10
4.16
3.33
15
10
4.16
3.33
Input
(1)
Current
mA
58/1885
60/1831
100/1875
100/1870
42/923
37/906
5/930
5/930
58/2405
60/2315
18/2370
18/2315
42/1177
37/1140
11/1165
11/1141
Efficiency
(2)
Max
(3)
Operating
Temp
77°C
86°C
75°C
81°C
84°C
89°C
78°C
81°C
58°C
74°C
66°C
74°C
68°C
81°C
72°C
81°C
RPP40-243.3S
RPP40-2405S
RPP40-2412S
RPP40-2415S
RPP40-483.3S
RPP40-4805S
RPP40-4812S
RPP40-4815S
RPP50-243.3S
RPP50-2405S
RPP50-2412S
RPP50-2415S
RPP50-483.3S
RPP50-4805S
RPP50-4812S
RPP50-4815S
88.4%
91.0%
87.8%
89.5%
90.2%
92.0%
88.9%
89.7%
86.6%
90.0%
88.3%
90.0%
88.6%
91.4%
89.4%
91.2%
UL-60950-1 Pending
RPP40/
RPP50
* ICE Technology
ICE (Innovation in
Converter Excellence) uses
state-of-the-art techniques
to minimise internal power
dissipation and to increase
the internal temperature
limits to extend the
ambient operating temp
range to the maximum.
Refer to end of section for
more details.
Derating Graph (Ambient Temperature)
RPP40-4805S
125
Output Power (%)
RPP50-4805S
125
Output Power (%)
100
75
39
29
50
25
0
-45 -25 -10 0
50 60 70
100
105
100
75
50
29
21
25
0
-45 -25 -10 0
50 60 70
90 100
68
81
105
Ambient Temperature Range (°C)
Natural Convection
Vertical
Horizontal
Natural Convection
Vertical
Horizontal
80 89
Ambient Temperature Range (°C)
Derating graphs are valid only for the shown part numbers.
Please contact Technical Support for more information info@recom-development.at
www.recom-international.com
REV:0/2009
Refer to Application Notes
PP-17
POWERLINE+
DC/DC-Converter
Specifications
(typical at nominal input and 25°C unless otherwise noted)
Input Voltage Range
Under Voltage Lockout
24V nominal input
48V nominal input
24V input DC-DC ON (min.)
DC-DC OFF (max.)
48V input DC-DC ON (min.)
DC-DC OFF (max.)
RPP40/50
Series
18-36VDC
36-75VDC
17.5VDC
17VDC
35VDC
34VDC
Common Mode EMC Filter
5V/ms max
24V Input
48V Input
nominal Vin and full load
nominal Vin and constant resistor load
DC-DC ON
DC-DC OFF
Nominal input
50VDC
100VDC
30mAp-p
2ms typ., 5ms max.
Open or 3.0V < Vr < 5.5V
Short or 0V < Vr < 1.2V
2mA typ.
50W max.
10% Load and nominal Vin
±1%
±10%
0%
low line, high line at full load
10% to 100% full load
3.3V, 5V
All others
±0.3%
±0.5%
60mVp-p typ.
40mVp-p typ.
±0.04%/°C max.
25% load step change
% of full load at nominal Vin
200µs
120% typ.
Hiccup, automatic recovery
Converter shutdown if Vout > Vout nominal + 20%
Rated at 2250VDC/1 minute, Flash tested at 3000VDC/1 second
10MΩ min.
3000pF max.
260kHz ± 40kHz
Ambient, Free Convection
Ambient, Free Convection
-45°C to +89°C max (without derating)
-45°C to +81°C max (without derating)
-45°C to +105°C max (with derating)
+120°C
-55°C to +125°C
Vertical
Horizontal
internal thermistor
7.3°C/Watt
10°C/Watt
5% to 95% RH
Aluminium
Silicone (UL94-V0)
39g
2” x 1.2” x 0.48” (50.8 x 30.5 x 11.7mm)
Input Filter
Input Voltage Variation dv/dt (Complies with ETS300 132 part 4.4)
Input Surge Voltage (100 ms max.)
Input Reflected Ripple
Start Up Time
Remote ON/OFF
(4)
Remote OFF input current
Output Power
Output Voltage Accuracy
Voltage Adjustability
Minimum Load
Line Regulation
Load Regulation
Ripple and Noise (20MHz bandwith limited)
(measured with 1µF capacitor across output)
Temperature Coefficient
RPP40
RPP50
Transient Response
Over Load Protection
Short Circuit Protection
Output Over Voltage Protection (refer to block diagram in Application Notes)
Isolation Voltage
Isolation Resistance
Isolation Capacitance (refer to block diagram in Application Notes)
Operating Frequency
RPP40 Operating Temperature Range
RPP50 Operating Temperature Range
Maximum Case Temperature
Storage Temperature Range
Over Temperature Protection (refer to block diagram in Application Notes)
Thermal Impedance
(Natural convection
Relative Humidity
Case Material
(7)
Potting Material
Weight
Dimensions
PP-18
REV: 0/2009
www.recom-electronic.com
POWERLINE+
DC/DC-Converter
Specifications
(typical at nominal input and 25°C unless otherwise noted)
Safety Standards
Thermal Cycling
Vibration
Conducted Emissions
Radiated Emissions
ESD
Radiated Immunity
Fast Transient
(5)
Surge
(5)
Conducted Immunity
MTBF calculated according to BELLCORE TR-NWT-000332
(6)
RPP40/50
Series
UL-60950-1 Pending
complies with MIL-STD-810F
10-55Hz, 12G, 30 Min. along X, Y and Z
EN55022
EN55022
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
Class B
Class B
Perf. Criteria B
Perf. Criteria A
Perf. Criteria B
Perf. Criteria B
Perf. Criteria A
1989 x 10
3
hours
Notes :
1. Typical values at nominal input voltage and no load/full load.
2. Typical values at nominal input voltage and full load.
3. Typical values at nominal input voltage and full load in vertical orientation and with Eurocard-sized PCB ground planes to assist in heat dissipation.
For horizontal orientation, reduce the maximum temperatures by 10°C.
4. 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. RPP50-2405S)
Negative logic ON/OFF option has suffix /N (Ex. RPP50-2405S/N)
5. Requires an external 100µF/100V low ESR capacitor to meet EN61000-4-4 and EN61000-4-5
6. Case l: 50% Stress, Temperature at 50°C (Ground Benign).
7. To ensure a good all-round electrical contact, the baseplate is pressed firmly into place within the aluminium housing.The hydraulic press can leave
tooling marks and deformations to both the housing and baseplate. The case is anodised aluminium, so there will be natural variations in the case
colour and the aluminium is not scratch resistant. Any resultant marks, scratches and colour varations are cosmetic only and do not affect the
operation or performance of the converters.
RPP40
RPP50
Recommended PCB Layout
Single Output
Dual Output
C2
C1
Fuse
C2
C1
Fuse
C3
Input Fuse is recommended, but optional. Recommended fuse rating = double maximum input current, time delay type.
Input Capacitor, C1, is required to meet EN61000 Surge and Fast Transient, otherwise it is not required for normal operation.
Output Capacitors C2/C3 are recommended, but not required for normal operation. Typical capacitor values are 1µF/100V MLCC
To ensure optimum thermal performance, use large areas of copper on the PCB to assist with heat dissipation and mount the converter vertically.
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