The RPP30-W series 4:1 input range DC/DC converters are ideal for high end industrial
applications and COTS Military applications where a very wide operating temperature
range of -40°C to +115°C is required. Although the case size is compact, the converter
contains a built-in filter EN55022 Class B / FCC Level B without the need for any external
components. The RPP30-W is available in two case styles: the ribbed case and the base-
plate case for high vibration, bulkhead-mounting or for passive cooling applications. They
are UL-60950-1 certified.
30 Watt
4:1 Single
&
Dual Output
Selection Guide
24V and 48V 4:1 Input Types
Part Number
Input
Range
VDC
9-36
9-36
9-36
9-36
9-36
18-75
18-75
18-75
18-75
18-75
9-36
9-36
9-36
18-75
18-75
18-75
Output
Voltage
VDC
3.3
5
12
15
24
3.3
5
12
15
24
±12
±15
±24
±12
±15
±24
Output
Current
mA
8400
6000
2500
2000
1250
9000
6000
2500
2000
1250
±1250
±1000
±625
±1250
±1000
±625
Input
(1)
Current
mA
57/1326
62/1397
27/1420
31/1436
31/1436
46/704
38/710
15/727
19/718
19/718
32/1453
30/1436
30/1436
18/727
20/718
20/718
Efficiency
(2)
(Min.)
87%
89%
87%
87%
87%
87%
89%
87%
87%
87%
87%
87%
87%
87%
87%
87%
2011/65/EU
6/6
RPP30-243.3SW
RPP30-2405SW
RPP30-2412SW
RPP30-2415SW
RPP30-2424SW
RPP30-483.3SW
RPP30-4805SW
RPP30-4812SW
RPP30-4815SW
RPP30-4824SW
RPP30-2412DW
RPP30-2415DW
RPP30-2424DW
RPP30-4812DW
RPP30-4815DW
RPP30-4824DW
RoHS
UL-60950-1 Certified
E224736
RPP30-W
* 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
temperature range to the maximum.
Refer to Application Notes
** add suffix for case options
SUFFIX INFORMATION
none = Standard Ribbed Case
-B = Baseplate Case
For other CTRL logic (-1), case style (-F) or low temperature options (-L, -M, -T) please contact
RECOM for availability.
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DC/DC-Converter
Specifications
(typical at nominal input and 25°C unless otherwise noted)
Input Voltage Range
Under Voltage Lockout
RPP30-S_DW
Series
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.)
9-36VDC
18-75VDC
8.5VDC
8VDC
17.5VDC
17VDC
Common Mode EMC Filter
24V Input
48V Input
nominal Vin and full load
nominal Vin and constant resistor load
Logic High
Logic Low
Nominal input
50VDC
100VDC
300mAp-p
20ms typ., 50ms max.
Open or 3.0V < Vr < 5.5V
Short or 0V < Vr < 1.2V
2mA typ.
30W max.
Nominal Vin
Single Output only
±1.5%
±5%
0%
low line, high line at full load
10% to 100% full load
Dual Outputs only
3.3V, 5V
All others
±0.3%
±0.5%
3% typ./ 5% max.
80mVp-p typ.
27mV-60mVp-p max
±0.04%/°C max.
25% load step change
% of full load at nominal Vin
800µs
120% typ.
Power Limit, automatic recovery
Converter shutdown if Vout > Vout nominal +20%
Rated at 2250VDC/1 minute, Flash tested at 3000VDC/1 second
10MΩ min.
3000pF max.
300kHz ± 30kHz
Ambient, Free Convection
-40°C to see Calculation (Note 7)
+115°C
-55°C to +125°C
Ribbed Case: Vertical
Ribbed Case: Horizontal
internal thermistor
7.3°C/Watt
10°C/Watt
5% to 95% RH
Aluminium
Silicone (UL94-V0)
Ribbed Case
Baseplate Case
39g
43g
continued on next page
Input Filter
Input Surge Voltage (100 ms max.)
Input Reflected Ripple
Start Up Time
Remote ON/OFF
(3)
Remote OFF input current
Output Power
Output Voltage Accuracy
Voltage Adjustability
Minimum Load
Line Regulation
Load Regulation
Cross Regulation (10% <> 100% Load)
Ripple and Noise (20MHz bandwith limited)
(measured with 1µF MLCC capacitor across outputs)
RPP30-W
Temperature Coefficient
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
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
Weight
(6)
Potting Material
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DC/DC-Converter
Specifications
(typical at nominal input and 25°C unless otherwise noted)
Packing Quantity
Safety Standards
Thermal Cycling
Vibration
Conducted Emissions
Radiated Emissions
ESD
Radiated Immunity
Fast Transient
(4)
Surge
(4)
Conducted Immunity
MTBF calculated according to BELLCORE TR-NWT-000332
(5)
RPP30-S_DW
Series
Ribbed Case
Baseplate Case
4 pcs per Tube
Single packed
certified UL-60950-1, 1st Edition
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
2195 x 10
3
hours
Notes :
1. Typical values at nominal input voltage and no load/full load.
2. Min values at nominal input voltage and full load.
3. 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. RPP30-2405SW, RPP30-4805DW-B.
Positive logic: 0= OFF, 1 = ON. The converter will be ON if the CTRL is left open.
4. Requires an external 100µF low ESR capacitor to meet EN61000-4-4 and EN61000-4-5
5. Case l: 50% Stress, Temperature at 50°C (Ground Benign).
6. 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.
7. Example:
T
case
= Case Temperature
R
thcase-ambient
= 7.3°C/W (vertical)
T
ambient
= Environment Temperature
R
thcase-ambient
= 11°C/W (horizontal)
P
dissipation
= Internal losses
Tcase - Tambient
P
in
= Input Power
R
thcase-ambient
=
Pdissipation
P
out
= Output Power
Pout
Ƞ
= Efficiency under given Operating Conditions
P
dissipation
= Pin-Pout =
Ƞ
- Pout
R
thcase-ambient
= Thermal Impedance
RPP30-W
P
dissipation
= Pin-Pout =
Practical Example:
Pout
Ƞ
- Pout
Take the RPP30-2405SW with 90% load. What is the maximum ambient operating temperature? Use converter vertical in application.
Eff
min
= 89% @ V
nom
P
out
= 30W
P
outapp
= 30 x 0.9 = 27W
P
dissipation
=
Ƞ
Pout
Ƞ
- P
out
R
th
=
115°C - Tambient
Tcasemax - Tambient
--> 7.3°C/W =
3.34W
P
dissipation
= ~89% (from Eff vs Load Graph)
27
- 27 = 3.34W
0.89
T
ambient
= 90.64°C
P
dissipation
=
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DC/DC-Converter
Typical Characteristics
RPP30-S_DW
Series
-Vout
Trim Up
Trim
Trim Down
+Vout
10k
W
Trimpot
+Vout
10k
W
Trimpot
Trim
10k
W
Trimpot
-Vout
External Output Trimming
RPP30-4805SW
100
90
80
70
60
50
40
30
20
10
0
Efficiency VS Load
V
nom
RPP30-W
Efficiency (%)
0
20
40
60
80
100
Output Load (%)
Recommended PCB Layout
Ribbed Case
Single Output
Dual Output
C2
C1
C2
C1
C3
Fuse
Fuse
Top View
Top View
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DC/DC-Converter
Recommended PCB Layout
RPP30-S_DW
Series
Single Output
Dual Output
Baseplate Case- suggested PCB layout
C2
C1
No tracks
in this area
(42 x 30mm)
C3
C3
Fuse
Top View
Input Fuse is recommended. 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 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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