20W 2"x1" Package Reliable Railway DC-DC Converter
RSDW20 & RDDW20
series
■
Features
Compliance with EN50155 railway standard
DIP 2"x1" package with standard pinout
4:1 wide input range
Wide operating temperature range -40 ~ +85
℃
No minimum load required
Full encapsulated
Protections: Short circuit (Continuous) / Overload /
Over voltage / Input under voltage
1.5KVDC,3KVDC I/O isolation by models
Remote ON/OFF control
3 years warranty
■
Applications
Bus, tram, metro or railway system
Telecom
/
datacom system
Wireless network
Industrial control facility
Instrument
Analyzer
Highly vibrating, heavily dusty, exteremely
low or high temperature harsh environment
■
Description
RSDW20 and RDDW20 series are 20W module type DC-DC reliable railway converter with 2"x1" package. It
features international standard pins, a high efficiency up to 90%, wide working temperature range
-40~+85
℃
, 1.5KVDC(F/G models)/3KVDC(H models) I/P-O/P isolation voltage, compliance with EN50155
railway standard, continuous-mode short circuit protection, etc. The models account for different input
voltage 9~36V, 18~75V and 43~160V 4:1 wide input range, and various output voltage, 3.3V/5V/12V/15V
for single output and ± 5V/±12V/±15V for dual outputs, which are suitable for railway, trams, buses and also
can be used in the harsh environment with high vibration, high dust, extremely low or high temperature, etc.
■
Model Encoding
R S DW20 H - 12
Output voltage (3.3/5/12/15Vdc
，
±5/±12/±15Vdc)
Input voltage (F: 9~36Vdc
，
G: 18~75Vdc
，
H: 43~160Vdc)
Rated wattage
Series name
{
S:Single output
D:Dual output
File Name:RSDW20,RDDW20-SPEC 2018-08-06
20W 2"x1" Package Reliable Railway DC-DC Converter
RSDW20 & RDDW20
series
OUTPUT
MODEL SELECTION TABLE
INPUT
ORDER NO.
INPUT VOLTAGE
(RANGE)
INPUT CURRENT
NO LOAD
55mA
55mA
55mA
Normal 24V
(9 ~ 36V)
55mA
70mA
35mA
35mA
25mA
25mA
25mA
Normal 48V
(18 ~ 75V)
25mA
45mA
25mA
25mA
3mA
3mA
Normal 110V
(43 ~ 160V)
3mA
3mA
3mA
FULL LOAD
869mA
935mA
928mA
935mA
945mA
947mA
935mA
430mA
465mA
465mA
465mA
468mA
470mA
470mA
205mA
202mA
203mA
206mA
206mA
OUTPUT
VOLTAGE
3.3V
5V
12V
15V
±
5V
±
12V
±
15V
3.3V
5V
12V
15V
±
5V
±
12V
±
15V
5V
12V
15V
±
12V
±
15V
OUTPUT
CURRENT
5500mA
4000mA
1670mA
1330mA
±
0 ~ 2000mA
±
0 ~835mA
±
0 ~ 666mA
5500mA
4000mA
1670mA
1330mA
±
0 ~ 2000mA
±
0 ~835mA
±
0 ~ 666mA
4000mA
1670mA
1330mA
±
0 ~1833mA
±
0 ~ 667mA
EFFICIENCY
(Typ.)
CAPACITOR LOAD
(MAX.)
RSDW20F-03
RSDW20F-05
RSDW20F-12
RSDW20F-15
RDDW20F-05
RDDW20F-12
RDDW20F-15
RSDW20G-03
RSDW20G-05
RSDW20G-12
RSDW20G-15
RDDW20G-05
RDDW20G-12
RDDW20G-15
RSDW20H-05
RSDW20H-12
RSDW20H-15
RDDW20H-12
RDDW20H-15
87%
90%
90%
90%
89%
88%
88%
88%
89%
90%
90%
89%
88%
88%
88.5%
90%
89.5%
89%
88.5%
5500
μ
F
4000
μ
F
1800
μ
F
1500
μ
F
*2000
μ
F
*1000
μ
F
*800
μ
F
5500
μ
F
4000
μ
F
1800
μ
F
1500
μ
F
*2000
μ
F
*1000
μ
F
*800
μ
F
5600
μ
F
1000
μ
F
1000
μ
F
*680
μ
F
*350
μ
F
* For each output
File Name:RSDW20,RDDW20-SPEC 2018-08-06
20W 2"x1" Package Reliable Railway DC-DC Converter
RSDW20 & RDDW20
series
SPECIFICATION
VOLTAGE RANGE
INPUT
FILTER
PROTECTION
VOLTAGE ACCURACY
RATED POWER
RIPPLE & NOISE
OUTPUT
F: 9~36Vdc , G: 18~75Vdc , H: 43~160Vdc
Pi type
Fuse recommended. 24Vin models: 4A delay time Type, 48Vin models: 2A delay time Type, 110Vin models: 0.8A delay time Type
±1.5%
20W
Note.2
60mVp-p
SURGE VOLTAGE (100ms max.)
24Vin models : 50Vdc, 48Vin models : 100Vdc, 110Vin models : 200Vdc
LINE REGULATION
Note.3
±0.2%
LOAD REGULATION
Note.4
Single output models:
±
0.5%, Dual output models:
±
1%
SWITCHING FREQUENCY
(Typ.)
F/G: Single output 350KHz, Dual output 400KHz
H: 250KHz
Protection type : Continuous, automatic recovery
110 ~ 160% rated output power
Protection type : Recovers automatically after fault condition is removed
Protection type : Clamp by diode
Start-up voltage
Shutdown voltage
24Vin: 8.8Vdc, 48Vin: 17Vdc, 110Vin: 40Vdc
24Vin: 8Vdc,
48Vin: 16Vdc, 110Vin: 38Vdc
EXTERNAL TRIM ADJ. RANGE
(Typ.)
±10%
(Single output model only)
SHORT CIRCUIT
OVERLOAD
PROTECTION
OVER VOLTAGE
UNDER VOLTAGE LOCKOUT
FUNCTION
REMOTE CONTROL
COOLING
WORKING TEMP.
CASE TEMPERATURE
WORKING HUMIDITY
ENVIRONMENT
TEMP. COEFFICIENT
VIBRATION
SAFETY STANDARDS
WITHSTAND VOLTAGE
Power ON: >5.5~75Vdc or open circuit (F/G models) ; >3.5~75Vdc or open circuit (H models)
Power OFF: <1.2Vdc or short (F/G/H models)
Free-air convection
-40 ~ +85℃ (Refer to "Derating Curve")
+105
℃
max.
20% ~ 90% RH non-condensing
0.03% /
℃
(0 ~ 71
℃
)
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
EAC TP TC 004 approved
F/G: I/P-O/P 1.5KVDC, H: I/P-O/P 3KVDC
STORAGE TEMP., HUMIDITY
-55 ~ +1 25
℃
, 10 ~ 95% RH non-condensing
SOLDERING TEMPERATURE
1.5mm from case of 1 ~ 3sec./260
℃
max.
ISOLATION RESISTANCE
I/P-O/P:100M Ohms / 500VDC / 25
℃
/ 70% RH
ISOLATION CAPACITANCE
(Typ.)
1000pF
Parameter
EMC EMISSION
SAFETY &
EMC
(
Note.
5)
EMC IMMUNITY
Conducted
Radiated
Parameter
ESD
Radiated Susceptibility
EFT/Burest
Surge
Conducted
RAILWAY STANDARD
MTBF
DIMENSION (L*W*H)
OTHERS
CASE MATERIAL
PACKING
NOTE
Standard
EN55032
EN55032
Standard
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
Test Level / Note
Class A/B with external components
N/A
Test Level / Note
Level 2,
±
8KV air,
±
4KV contact
Level 2, 3V/m
Level 1, 0.5KV
Level 1, 0.5KV Line-Line
Level 2, 3V(e.m.f.)
EN50155 / IEC60571 including EN61373 for shock & vibration, EN50121-3-2 for EMC
F/G: 720Khrs ; H: 880Khrs MIL-HDBK-217F(25
℃
)
50.8*25.4*10.2mm (2*1*0.4 inch)
Black coated copper with Non-Conductive Base
35g
1.All parameters are specified at normal input(F:24Vdc, G:48Vdc, H:110Vdc), rated load, 25
℃
70% RH ambient.
2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1
μ
f & 47
μ
f capacitor.
3.Line regulation is measured from low line to high line at rated load.
4.Load regulation is measured from 0% to 100% rated load.
5.The final equipment must be re-confirm that it still meet EMC directives. For guidance on how to perform these EMC tests, please
refer to EMI testing of component power supplies.(as available on http://www.meanwell.com)
File Name:RSDW20,RDDW20-SPEC 2018-08-06
20W 2"x1" Package Reliable Railway DC-DC Converter
RSDW20 & RDDW20
series
External Output Trimming
In order to trim the voltage up or down one needs to connect the trim resistor either between the trim pin and -Vo for trim-up and between trim pin and
+Vo for trim-down. The output voltage trim range is
±
10%. This is shown in Figures 1 and 2:
+Vin
+Vo
Trim
R-Load
R trim-up
+Vin
+Vo
R trim-down
R-Load
Trim
-Vin
-Vo
Figure 1. Trim-up Voltage Setup
-Vin
-Vo
Figure 2. Trim-down Voltage Setup
Mechanical Specification
All dimensions in mm(inch)
Tolerance:x.x
±
0.5mm(
x.xx
±
0.02")
x.xx
±
0.25mm(
x.xxx
±
0.010")
Pin size is:0.5
±
0.05mm (0.02
"±
0.002")
Plug Assignment
※
F models(9~36Vin) and G models(18~75Vin):
5.08
7.62(0.3) (0.2) 10.16(0.4)
15.2(0.6)
Pin-Out
Pin No.
6
2
1
RSDW20F/G
(Single output)
+Vin
-Vin
+Vout
RDDW20F/G
(Dual output)
+Vin
-Vin
+Vout
Common
-Vout
1
Side View
3
20.32(0.8)
50.8(2)
Bottom View
2
5
4
3
4
1(0.04)
Trim
-Vout
5
6
Remote ON/OFF Remote ON/OFF
10.16(0.4) 10.16(0.4)
25.4(1)
10.2(0.4)
5.6(0.22 min.)
※
H models(43~160Vin):
25.4(1)
2.5(0.1)
10.16(0.4)
10.16(0.4)
2.5(0.1)
3
5
4
Pin-Out
Pin No.
RSDW20H
(Single output)
+Vin
-Vin
+Vout
RDDW20H
(Dual output)
+Vin
-Vin
+Vout
-Vout
Common
1
45.72(1.8)
50.8(2)
Bottom View
Side View
2
3
4
1(0.04)
Trim
-Vout
5
6
10.2(0.4)
5.6(0.22 min.)
1
2
6
Remote ON/OFF Remote ON/OFF
5.08(0.2)
15.24(0.6)
5.1(0.2)
File Name:RSDW20,RDDW20-SPEC 2018-08-06
20W 2"x1" Package Reliable Railway DC-DC Converter
RSDW20 & RDDW20
series
Derating Curve
100
LOAD (%)
80
60
40
20
Natural convection
-40
-20
0
20
40
60
73
85
105
Ta (
℃
)
EMC Suggestion Circuit
F models(9~36Vin) and G models(18~75Vin):
※Comply
to EN55032 conducted Class A without additional componets, required external componets to meet EN55032 conducted Class B
emission are as below:
L1
+Vin
C1
RSDW20
-Vin
-Vin
C2
C3
-Vout
-Vout
L2
+Vin
+Vout
+Vout
Model No.
RSDW20F-03
RSDW20F-05
RSDW20F-12
RSDW20F-15
RSDW20G-03
RSDW20G-05
RSDW20G-12
RSDW20G-15
Note: C1 is NIPPON-CHEMICON KY series or NICHICON PW series aluminum capacitor
C2, C3 are ceramic capacitors
C1
22 0
μ
F/50V KY
22 0
μ
F/50V KY
22 0
μ
F/50V KY
22 0
μ
F/50V KY
22 0
μ
F/ 10 0V PW
22 0
μ
F/ 10 0V PW
22 0
μ
F/ 10 0V PW
22 0
μ
F/ 10 0V PW
E N 550 3 2 C lass B
C2
C3
1 00 0pF/2KV 1 00 0pF/2KV
1 00 0pF/2KV 1 00 0pF/2KV
1 00 0pF/2KV 1 00 0pF/2KV
1 00 0pF/2KV 1 00 0pF/2KV
1 00 0pF/2KV 1 00 0pF/2KV
1 00 0pF/2KV 1 00 0pF/2KV
1 00 0pF/2KV 1 00 0pF/2KV
1 00 0pF/2KV 1 00 0pF/2KV
L1
SHORT
SHORT
SHORT
SHORT
0.15mH
0.15mH
0.15mH
0.15mH
L2
1.2mH
1.2mH
1.2mH
1.2mH
1.2mH
1.2mH
1.2mH
1.2mH
※Required
external componets to meet EN55032 conducted Class A emission are as below:
+Vin
C1
RDDW20
-Vin
-Vin
-Vout
-Vout
+Vin
+Vout
+Vout
Model No.
RDDW20F-05
RDDW20F-12
RDDW20F-15
RDDW20G-05
RDDW20G-12
RDDW20G-15
E N 550 3 2 C lass A
C1
1 0
μ
F/50V/ MLCC 1210
1 0
μ
F/50V/ MLCC 1210
1 0
μ
F/50V/ MLCC 1210
NC
NC
NC
File Name:RSDW20,RDDW20-SPEC 2018-08-06
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