Features
ICE
Technology*
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Tx Temperature Range without Derating
120°C Maximum Case Temperature
-45°C Minimum Operating Temperature
EN 50155 Compliant
EN 50121-3-2 Compliant
CE Marked
24, 48 and 110VDC Input Ranges
Six Sided Shielded Enclosure
Flat, Ribbed or Baseplate Case Styles
Efficiency to >89%
Isolated and Fully Protected Outputs
Low Quiescent Current
POWERLINE+
Railway-Converter
with 3 year Warranty
Description
The RPR40 series DC/DC converters are designed for railway rolling stock applications.
Besides covering all the input voltages from 24VDC up to 110VDC, the converters have a
very wide operating temperature range of -45°C to +85°C. Although the case size is very
compact, the converter contains a built-in EMI filter, so no active external filter components
are required. The RPR40 is available in three case styles: a low profile flat top case, a ribbed
case with a built-in heatsink and the baseplate case for high vibration or bulkhead-mounting
applications. They are EN 50155 and EN 50121-3-2 compliant.
40 Watt
Single
&
Dual Output
Selection Guide
24V, 48V and 110V Input Types
Part Number
Nominal
Input
VDC
24
24
24
24
24
48
48
48
48
48
110
110
110
110
110
24
24
24
48
48
48
110
110
110
Nom. Input
Range
VDC
12-36V
12-36V
12-36V
12-36V
12-36V
25-75
25-75
25-75
25-75
25-75
40-160
40-160
40-160
40-160
40-160
12-36V
12-36V
12-36V
25-75
25-75
25-75
40-160
40-160
40-160
Lockout
Voltage
VDC
8.5V
8.5V
8.5V
8.5V
8.5V
17.5
17.5
17.5
17.5
17.5
36
36
36
36
36
8.5V
8.5V
8.5V
17.5
17.5
17.5
36
36
36
Output
Voltage
VDC
3.3
5
12
15
24
3.3
5
12
15
24
3.3
5
12
15
24
±12
±15
±24
±12
±15
±24
±12
±15
±24
Output
Current
mA
12100
8000
3300
2670
1670
12100
8000
3300
2670
1670
12100
8000
3300
2670
1670
±1670
±1330
±830
±1670
±1330
±830
±1330
±1330
±830
2002/95/EC
6/6
RPR40-243.3S**
RPR40-2405S**
RPR40-2412S**
RPR40-2415S**
RPR40-2424S**
RPR40-483.3S**
RPR40-4805S**
RPR40-4812S**
RPR40-4815S**
RPR40-4824S**
RPR40-1103.3S**
RPR40-11005S**
RPR40-11012S**
RPR40-11015S**
RPR40-11024S**
RPR40-2412D**
RPR40-2415D**
RPR40-2424D**
RPR40-4812D**
RPR40-4815D**
RPR40-4824D**
RPR40-11012D**
RPR40-11015D**
RPR40-11024D**
RoHS
EN-50155 (Pending)
EN-60950 (Pending)
RPR40
* 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 am-
bient operating temperature
range to the maximum.
Refer to Application Notes
** add suffix “-F“ for low profile Flat case or “-B“ for Baseplate case and no suffix is the Ribbed case.
add “1“ before suffix for neg. CTRL logic e.g. -1, -1B, -1F, etc.
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REV:1/2011
1
POWERLINE+
DC/DC-Converter
Railway Input Voltage Requirements
Nominal
Input
Voltage
Input Range Min. Input
(0.1s)
16.8~30V
14.4V
33.6~60V
28.8V
50.4~90V
43.2V
67.2~120V
57.6V
77~137.5V
66V
RPR40-S_D
Series
Max Input Input Range Min. Input
(1s)
(0.1s)
33.6V
18~34V
12V
67.2V
100.8V
50~90V
36V
134.4V
154V
77~137V
55V
EN50155
NF F 01-510
24V
48V
72V
96V
110V
Max Input Input Range Min. Input
(1s)
(0.1s)
40V
12~36V
9V
25~75V
18V
115V
40~160V
36V
40~160V
36V
176V
40~160V
36V
RPR40
Max Input
(1s)
40V
80V
176V
176V
176V
Specifications
(typical at nominal input and 25°C unless otherwise noted)
Input Voltage Range (continuous)
complies with EN50155 and NFF 01-510 (Un=24V)
complies with EN50155 and NFF 01-510 (Un=48V)
complies with EN50155 and NFF 01-510 (Un=72V, 96V &110V)
Low Transient operating voltage (100ms)
High Transient operating voltage (1 second)
Allowed Input Ripple
Input Reflected Ripple
Supply Interruption
Supply Changeover
Start Up Time
Remote ON/OFF
(1)
Remote OFF input current
Output Voltage Accuracy
Voltage Adjustability
complies with EN50155 and NFF 01-510
complies with EN50155 and NFF 01-510
complies with EN50155
nominal Vin and full load
complies with EN50155, Class S1
complies with EN50155, Class C1
nominal Vin and constant resistive load
Logic High
Logic Low
Nominal input
50% Load and nominal Vin
Single Output only
12-36VDC
25-75VDC
40-160VDC
Un x 0.5
Un x 1.6
15%
20mAp-p
(complies with S2 using circuit below)
(complies with C2 using circuit below)
2ms typ., 5ms max.
Open or 3.0V < Vr < 5.5V
Short or 0V < Vr < 1.2V
2mA typ.
±1.5%
±10%
0%
low line, high line at full load
10% to 100% full load
Dual Outputs only
(measured with 1µF capacitor across outputs)
±0.3%
±0.5%
3% typ. / 5% max.
1% Vout typ. / 3% max.
±0.04%/°C max.
25% load step change
% of full load at nominal Vin
800µs
120% typ.
Current limit, automatic recovery
Single Output
Dual Output
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Operating Frequency
Operating Temperature Range (Tx)
(Ambient Air, Free Convection)
Maximum Case Temperature
Over Temperature Protection
Storage Temperature Range
Relative Humidity
complies with EN50155: 4.1.2 and EN50125-1
with derating
According to EN50155 12.2.9.2
According to EN50155 12.2.9.1
Converter shutdown if Vout > Vout nominal + 20%
Converter shutdown if Vout > Vout nominal + 10%
Tested at 1600VDC/1 minute
10MΩ min.
1500pF max.
260kHz ± 40kHz
-45°C to +85°C
-45°C to +100°C
+120°C
internal thermistor
-55°C to +125°C
5% to 95% RH
continued on next page
2
REV:1/2011
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RPR40
Minimum Load
Line Regulation
Load Regulation
Cross Regulation (10% <> 100% Load)
Ripple and Noise (20MHz bandwith limited)
Temperature Coefficient
Transient Response
Over Load Protection
Short Circuit Protection
Output Over Voltage Protection
POWERLINE+
DC/DC-Converter
Specifications
(typical at nominal input and 25°C unless otherwise noted)
Case Material
(2)
Potting Material
Weight
Flat Case
Ribbed Case
Baseplate Case
Flat, Ribbed Case
Baseplate Case
CE Marked
Cold
Dry Heat
Damp Heat,Cyclic
RPR40-S_D
Series
Aluminium
Silicone (UL94-V0)
34g
39g
43g
4 pcs per Tube
Single packed
certified to EN-60950-1, 1st Edition
-45°C /2 Hours
+85°C / 6 Hours
+25°C/+55°C, 85%RH / 2 x 24 Hours
5-150Hz, 10G, All three axes,15 hours
Built-in Pi Filter
EN50121-3-2
EN50121-3-2
EN50121-3-2
EN50121-3-2
EN50121-3-2
EN50121-3-2
EN50121-3-2
Class A
Class A
Perf. Criteria B
Perf. Criteria A
Perf. Criteria A
Perf. Criteria B
Perf. Criteria A
2195 x 10
3
hours
Packing Quantity
Safety Standards
Thermal Performance
conforms to EN50155: 12.2.3/4/5
Vibration (complies with EN61373)
Input Filter
Conducted Emissions
Radiated Emissions
ESD
Radiated Immunity
Fast Transient
Surge
Conducted Immunity
MTBF calculated according to BELLCORE TR-NWT-000332 Case l: 50% Stress, Temperature at 50°C (Ground Benign)
Recommended PCB Layout
Ripped and Flat Case
Single Output
C1
C2
C1
Dual Output
C2
RPR40
C3
Baseplate Case- suggested PCB layout
Single Output
Dual Output
C2
C1
Input Fuse is recommended, but
optional. Recommended fuse rating
= double maximum input current,
time delay type.
Input Capacitor, C1, is required to
meet surge specifications. Output
Capacitors C2/C3 are recommen-
ded, but not required for normal
operation. Typical capacitor values
are 1µF/100V MLCC
To ensure optimum thermal perfor-
mance, use large areas of copper
on the PCB to assist with heat dis-
sipation and mount the converter
vertically.
No tracks
in this area
(42 x 30mm)
C3
C3
Top View
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REV: 1/2011
3
POWERLINE+
DC/DC-Converter
Typical Application Circuit
RPR40-S_D
Series
RPR-series
Vout+
4n7
C1
4n7
330µF
4n7
4n7
EN50155 / NF F 01-510 Input Filter
Vin+
Reverse
Polarity
Protection
10n
Vin-
Vout-
EN50155 Class S2 Compliance
To meet the requirements of EN50155 Class S2 (disconnection of supply for 10ms), capacitor C1 is required. The value of C1 can be calculated from the
following formula:
C1 + 330μF = (2 x W x t)/(Eff. x (Un² - Umin²)
where W = output power, t = disconnect time, Eff = Converter efficiency, Un = nominal input voltage and Umin = the UVL voltage of the converter
e.g., for the RPR40-2405S: C1 = (2 x 40 x 0.01)/(0.88 x (24² - 8.5²) = 1804µF - 330µF = 1474µF minimum.
Any overcurrent protective devices fitted must not react faster than 0.01s and be capable of supplying the initial inrush current without tripping.
Suggested component values:
Un = 24V: C1 = 1804µF - 330µF = 750µF/50V + 750µF/50V
Un = 48V: C1 = 455µF - 330mF = 150µF/100V
Un = 72V: C1 not required
Un = 96V: C1 not required
Un = 110V: C1 not required
Inrush Current (after 10ms)
<0.1A
<0.1A
<0.1A
<0.1A
<0.1A
RPR40
EN50155 Class C2 Compliance
To meet the requirements of EN50155 Class C2 (disconnection of supply for 30ms), capacitor C1 needs to be increased:
Suggested component values:
Inrush Current (after 10ms)
Un = 24V: C1 = 5413µF - 330µF = 2200µF/50V + 2200µF/50V + 1000µF/50V
<4.2A
Un = 48V: C1= 1365µF - 330µF = 680µF/50V + 680µF/50V
<0.2A
Un = 72V: C1 = 559µF - 330µF = 330µF/200V
<0.1A
Un = 96V: C1 = 344µF - 330µF = 22µF/200V
<0.1A
Un = 110V: C1 not required
<0.1A
Notes :
1. The ON/OFF pin voltage is referenced to negative input. The pin is pulled high internally.
ON/OFF control is standard with positive logic: e.g. RPR40-2405S, RPR40-4805D-B.
Add “1” before the suffix for negative logic: e.g. RPR40-2405S-1, RPR40-11005D-1B.
Positive logic: 0= OFF, 1 = ON. The converter will be ON if the CTRL is left open.
Negative logic: 1 = OFF, 0 = ON. The converter will be OFF if the CTRL is left open..
2. 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.
3. The converter is supplied with a protective adhesive tape to keep the top surface clean. The tape is heat resistant and the converter can be
soldered into place without removing the tape. The tape should be removed just before final installation.
4
REV: 1/2011
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POWERLINE+
DC/DC-Converter
Package Style and Pinning (mm)
RPR40-S_D
Series
3rd angle
projection
Standard Case (No suffix)
50.80
11.70
dia.
1.0
45.70
5.1
30.5
Standoff
= 1.3
Pin Connections
Pin #
1
2
3
4
5
6
Single
+Vin
-Vin
+Vout
-Vout
Trim
CTRL
Dual
+Vin
-Vin
+Vout
Com
-Vout
CTRL
3.3
1
2
6
Bottom View
3
5.10
10.20
7.6
10.20
4
Pin Pitch Tolerance ±0.35 mm
10.20
5
5.0
RPR40
Flat Case (-F suffix)
30.5
50.80
9.6
dia.
1.0
45.70
Pin Connections
3rd angle
projection
10.9
5.1
Standoff
= 1.3
3.3
1
2
6
5
Bottom View
3
5.10
10.20
7.6
10.20
4
Pin #
1
2
3
4
5
6
Single
+Vin
-Vin
+Vout
-Vout
Trim
CTRL
Dual
+Vin
-Vin
+Vout
Com
-Vout
CTRL
10.20
5.0
Pin Pitch Tolerance ±0.35 mm
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REV: 1/2011
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