RDH600 Series
600 Watts
• Wide 4:1 Input Range
• Covers 72 & 110 VDC for Rail Applications
• Complies with EN50155
• Meets EN50121-3-2
• Single Output
• Industry Standard Full Brick
• -40 °C to +100 °C Operation
• Output Trim 60-110%
• Remote On/Off
• 3 Year Warranty
DC-DC Converter
xxx Series
Dimensions:
RDH600:
2.4 x 4.6 x 0.5” (61.0 x 116.8 x 12.7 mm)
Models & Ratings
Input
Voltage
Output
Voltage
12 V
43-160 V
24 V
28 V
48 V
Output Current
50.0 A
25.0 A
21.4 A
12.5 A
Input Current
No Load
25 mA
25 mA
25 mA
25 mA
Full Load
16.00 A
15.85 A
15.85 A
15.85 A
(3)
Ripple &
noise
(1)
120 mV
240 mV
280 mV
480 mV
Efficiency
(2)
87%
88%
88%
88%
Max. capacitive
load
10000 µF
5000 µF
5000 µF
5000 µF
Model Number
RDH60072WS12
RDH60072WS24
RDH60072WS28
RDH60072WS48
Notes
1. Measured at 20 MHz bandwidth pk-pk, full load, 10 µF aluminum solid and 1.0 µF
ceramic capacitors.
2. Measured at 110 V input and full load.
3. Measured at 43 VDC input.
Mechanical Details
4.09 (104.1)
3.94 (100.3)
3.79 (96.4)
3.64 (92.6)
3.49 (88.8)
0.
04
0(
1.
00
8-
)
0.
08
1(
2.
00
)
8-
10
1
2
9
8
7
6
5
1.40
(35.5)
2.00
(50.8)
2.2
(57.1)
0.40
(10.16)
0.90
(22.86)
0.02
(5.1)
1.70
(43.2)
1.30
(33.0)
3
4
2.40
(61.0)
0.90
(22.8)
0.75
(19.0)
0.02 (5.05)
Mounting Through
3.5mm 4Pl.
4.20 (106.7)
Pin
1
2
3
4
5-7
8-10
11
12
13
14
15
16
Function
-Vin
+Vin
REM-
REM+
+Vout
-Vout
-Sense
+Sense
Trim
Current Share
Power Good
Auxilliary, 7-13 V/20 mA
14
16
15
13
12
11
0.50
(12.72)
0.22
(5.5)
0.50
(12.7)
4.60 (116.8)
Notes
1. All dimensions are in inches (mm)
2. Weight: 0.485 lbs (220 g) approx.
3. Tolerance: x.xx = ±0.02 (x.x = ±0.5)
x.xxx = ±0.01 (x.xx = ±0.25)
1
www.xppower.com
RDH600 Series
Input
Characteristic
Input Voltage Range
Input Surge
Undervoltage Lockout
Lockout Hysteresis
Idle Current
Inrush Current
Recommended Input Fuse
Input Reflected Ripple Current
20
40
1
On: >41 V
Off: <39 V
42
40
2
10
1
Minimum
43
Typical
Maximum
160
180
43
41
DC-DC Converter
Units
VDC
VDC for 100 ms
VDC
VDC
mA
A
2
s
A
mA pk-pk
Notes & Conditions
72/110 V nominal inputs
On
Off
When output is inhibited
Time delay
Through 12 µH inductor
Output
Characteristic
Output Voltage
Output Trim
Initial Set Accuracy
Minimum Load
Line Regulation
Load Regulation
Transient Response
Start Up Time
Output Voltage Rise Time
Ripple & Noise
Overload Protection
Short Circuit Protection
Maximum Capacitive Load
Temperature Coefficient
Overvoltage Protection
Remote On/Off
115
125
0.02
140
%/ ˚C
%
110
125
160
±3.0
0
±0.2
±0.5
±5.0
250
50
Minimum
12
-40
Typical
Maximum
48
+10
±1.5
Units
VDC
%
%
%
%
%
%
ms
ms
mV pk-pk
%
Continuous hiccup mode, with auto recovery
See Models and Ratings table
See models and ratings table
Notes & Conditions
See Models and Ratings table
See Application Note
At full load and 110 V input
No minimum load required
From minimum to maximum input at full load
From 0% to full load
Maximum deviation, recovering to less than 1% in
500 µs for 25% step load change.
Ouput is on if REM+ (pin 4) is open or high (3.5-75 VDC) WRT REM- (pin 3) or -Vin
Output turns off if REM+ (pin 4) is low (<1.2 VDC max) WRT REM- (pin 3) or -Vin
General
Characteristic
Efficiency
Isolation: Input to Output
Isolation: Input to Case
Isolation: Output to Case
Isolation Resistance
Isolation Capacitance
Switching Frequency
Power Density
Mean Time Between Failure
Weight
450
0.485 (220.0)
2250
2250
1500
10
7
4000
250
109
Minimum
Typical
88
Maximum
Units
%
VDC
VDC
VDC
pF
kHz
W/in
3
kHrs
lb (g)
MIL-HDBK-217F, +25 °C GB
Ω
Notes & Conditions
See Models and Ratings table
60 s
60 s
60 s
Input to output
Environmental
Characteristic
Operating Base Plate Temperature
Storage Temperature
Thermal Protection
Humidity
Cooling
Minimum
-40
-55
+110
95
Typical
Maximum
+100
+105
Units
°C
°C
°C
%RH
Measured on baseplate
Non-condensing
Base plate cooled
Notes & Conditions
www.xppower.com
2
RDH600 Series
Safety Approvals
Agency
UL
EN
Standard
cUL60950-1
EN50155
Test Level
DC-DC Converter
Notes & Conditions
ITE
Railway
EMC: Emissions
Phenomenon
Conducted
Radiated
Standard
EN50121-3-2
EN50121-3-2
Test Level
Notes & Conditions
See Application Notes
See Application Notes
EMC: Immunity
Phenomenon
Railway Equipment
ESD Immunity
Radiated Immunity
EFT/Burst
Surge
Conducted Immunity
Standard
EN50121-3-2
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
±6 kV/±8 kV
20 V/m
2 kV
±2 kV/±1 kV
10 V rms
A
A
A
B
A
External capacitor required such as
Rubycon 4XF Series, 220 µF/200V
L-E/L-L, External TVS, 1.5 KE 180 A Littlefuse
Test Level
Criteria
Notes & Conditions
See Application Note
Contact Discharge/Air Discharge
Mechanical Details
4.09 (104.1)
3.94 (100.3)
3.79 (96.4)
3.64 (92.6)
3.49 (88.8)
14
16
15
13
12
11
0.
04
0(
1.
00
8-
)
0.
08
1(
2.
00
)
8-
10
1
2
9
8
7
6
5
1.40
(35.5)
2.00
(50.8)
2.2
(57.1)
0.40
(10.16)
0.90
(22.86)
0.02
(5.1)
1.70
(43.2)
1.30
(33.0)
3
4
2.40
(61.0)
0.90
(22.8)
0.75
(19.0)
0.02 (5.05)
Mounting Through
3.5mm 4Pl.
4.20 (106.7)
Pin
1
2
3
4
5-7
8-10
11
12
13
14
15
16
Function
-Vin
+Vin
REM-
REM+
+Vout
-Vout
-Sense
+Sense
Trim
Current Share
Power Good
Auxilliary, 7-13 V/20 mA
0.50
(12.72)
0.22
(5.5)
0.50
(12.7)
4.60 (116.8)
Notes
1. All dimensions are in inches (mm)
2. Weight: 0.485 lbs (220 g) approx.
3. Tolerance: x.xx = ±0.02 (x.x = ±0.5)
x.xxx = ±0.01 (x.xx = ±0.25)
3
www.xppower.com
RDH600 Series
Application Notes
Input Fusing and Safety Considerations
The RDH600 series converters have no internal fuse. In
order to achieve maximum safety and system
protection, always use an input line fuse. We
recommended a 20 A time delay fuse. It is
recommended that the circuit has a transient voltage
suppressor diode (TVS) across the input terminals to
protect the unit against surge or spike voltages and
input reverse voltage (as shown). A suitable part would
be 1.5 KE180 A Littlefuse.
Fuse
DC-DC Converter
1
+Vin
+Vout
+Sense
5-7
12
13
11
8-10
Trim down Rd
Trim up Ru
+
-
Vin
TVS
-Vin
Trim
-Sense
4
-Vout
Load
Output Voltage Adjustment
The Trim input permits the user to adjust the output voltage up by 10% or down by 40%. This is accomplished by connecting an external
resistor between the Trim pin and either the +Sense pin or the -Sense pin.
To Trim Down
Connecting an external resistor (Rd) between the Trim pin and the
-Sense pin decreases the output voltage. The following table can be
used to determine the required external resistor value to obtain a
percentage output voltage change of Δ%.
Trim Down%
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
12 V
387.92
235.74
168.34
130.30
105.88
88.87
76.34
66.73
59.12
52.95
47.84
43.55
39.88
36.72
33.97
31.54
29.40
27.48
25.76
24.21
22.80
21.51
20.34
19.26
18.26
17.34
16.48
15.69
14.95
14.26
13.61
13.00
12.43
11.89
11.38
10.90
10.44
10.01
9.599
9.209
28 V
Rd (kΩ)
396.61
603.07
238.95
301.84
169.98
199.92
131.30
148.68
106.54
117.84
89.34
97.24
76.69
82.50
67.00
71.44
59.33
62.83
53.12
55.94
47.99
50.30
43.67
45.60
39.99
41.62
36.81
38.21
34.04
35.25
31.61
32.66
29.46
30.38
27.53
28.35
25.81
26.53
24.25
24.89
22.83
23.41
21.54
22.07
20.37
20.84
19.28
19.71
18.28
18.67
17.36
17.72
16.50
16.83
15.71
16.01
14.97
15.24
14.27
14.53
13.62
13.86
13.01
13.23
12.44
12.64
11.90
12.09
11.39
11.56
10.91
11.07
10.45
10.60
10.02
10.16
9.608
9.739
9.217
9.34
24 V
48 V
387.92
235.74
168.34
130.30
105.88
88.87
76.34
66.73
59.12
52.95
47.84
43.55
39.88
36.72
33.97
31.54
29.40
27.48
25.76
24.21
22.80
21.51
20.34
19.26
18.26
17.34
16.48
15.69
14.95
14.26
13.61
13.00
12.43
11.89
11.38
10.90
10.44
10.01
9.599
9.209
To Trim Up
Connecting an external resistor (Ru) between the +Vout pin and the
+Sense pin increases the output voltage. The following table can be
used to determine the required external resistor value to obtain a
percentage output voltage change of Δ%.
Trim Up %
1
2
3
4
5
6
7
8
9
10
12 V
0.049
0.168
0.288
0.407
0.526
0.645
0.765
0.884
1.003
1.123
24 V
Ru (kΩ)
0.106
0.345
0.583
0.822
1.061
1.299
1.538
1.776
2.015
2.253
0.272
0.55
0.829
1.107
1.385
1.664
1.942
2.221
2.499
2.777
0.196
0.673
1.15
1.627
2.104
2.582
3.059
3.536
4.013
4.49
28 V
48 V
www.xppower.com
4
RDH600 Series
Application Notes
Thermal Resistance Information
Power Dissipated vs Ambient Temperature and Air Flow
90
80
DC-DC Converter
Power Disspated ,Pd(Watts)
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
Ambient Temperature ,Ta(Deg. C)
90
100
Natural Convection
20 ft./min. (0.1 m/s)
100 ft./min. (0.5 m/s)
200 ft./min. (1.0 m/s)
300 ft./min. (1.5 m/s)
400 ft./min. (2.0 m/s)
500 ft./min. (2.5 m/s)
600 ft./min. (3.0 m/s)
700 ft./min. (3.5 m/s)
800 ft./min. (4.0 m/s)
Air Flow Rate
Natural Convection 20 ft/min (0.1 m/s)
100 ft/min (0.5 m/s)
200 ft/min (1.0 m/s)
300 ft/min (1.5 m/s)
400 ft/min (2.0 m/s)
500 ft/min (2.5 m/s)
600 ft/min (2.5 m/s)
700 ft/min (2.5 m/s)
800 ft/min (2.5 m/s)
Typical Rca
3.82 °C/W
3.23 °C/W
2.71 °C/W
2.28 °C/W
1.92 °C/W
1.68 °C/W
1.50 °C/W
1.35 °C/W
1.23 °C/W
Airflow Derating Graph
Example (Without Heatsink)
To determine the minimum airflow necessary for a RDH60072WS12 operating at an input voltage of 110 V, an output current of 30 A, and a maximum
ambient temperature of 30°C:
Determine Power dissipation (Pd):
Pd = Pi-Po = Po(1-η)/η,
Pd =12 V× 30 A×(1-0.87)/0.87 = 54 Watts
Determine airflow from airflow derating graph using data points for Pd=54 W and Ta = 30 °C
Minimum airflow= 800 ft./min.
To check that the maximum case temp of 100 °C is not exceeded:
Maximum temperature rise is
ΔT = Pd × Rca=54.0×1.23=66.42 °C.
Maximum case temperature is
Tc=Ta+ΔT=96.42°C <100°C.
Where: Rca is the thermal resistance from case to ambient environment. Ta is ambient temperature and Tc is case temperature.
Where Pi = Input power, Po = Output Power and
η
= Efficiency
www.xppower.com
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
