MR50-72S05RW Datasheet, PDF (1/4 Pages) MicroPower Direct, LLC – Compact, 50W Wide Input Railway DC/DC Converter

MR50-xxSRW _Series
Compact, 50W
Wide Input Railway
DC/DC Converter
Key Features:
• 50W Output Power
• Meets EN 50155
• EN 60950 Approved
• EN 50121-3-2 Compliant
• Wide Input Range
• 3,000 VAC rms Isolation
• Reinforced Insulation
• 92% Efficiency
• Meets EN 61373
• Remote On/Off
MicroPower Direct
292 Page Street
Suite D
Stoughton, MA 02072
USA
T: [phone]
F: [phone]
E: [e-mail]
W: www.micropowerdirect.com
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Parameter
Conditions
Min. Typ. Max. Units
Input Voltage Range
72 VDC Input 43.0 72.0 101.0
110 VDC Input 66.0 110.0 160.0
VDC
Input Start Voltage
72 VDC Input
110 VDC Input
43.0
66.0
VDC
Under Voltage Shutdown
72 VDC Input
40.0
110 VDC Input
63.0
VDC
Input Filter
PI (␲) Filter
Output
Parameter
Conditions
Min. Typ. Max. Units
Output Voltage Accuracy
±1.0
%
Line Regulation
VIN = Min to Max
±0.2
%
Load Regulation
IOUT = 0% to 100%
±0.3
%
Ripple & Noise (20 MHz)
See Note 1
100
mV Pk-Pk
Transient Response Time, See Note 2
25% Load Change
250
µS
Temperature Coefficient
±0.02 %/°C
Output Over Load Protection
See Note 3
150
%IOUT
Output Short Circuit
Continuous (Hiccup Mode)
General
Parameter
Conditions
Min. Typ. Max. Units
Isolation Voltage, Reinforced Insulation
Input/Output 3,000
Input/Output to Case 1,500
VAC rms
VDC
Isolation Resistance
500 VDC 1,000
M
Isolation Capacitance
100 kHz/1V
3,000
pF
Switching Frequency
320
kHz
Environmental
Parameter
Conditions
Min. Typ. Max. Units
Operating Temperature Range
Ambient, See Note 4 -40 +25 +75
°C
Natural Convection 7.5
Thermal Impedance, Without Heat Sink
100 LFM 6.1
200 LFM 5.3
°C/W
400 LFM 3.9
Natural Convection 6.8
Thermal Impedance, With Heat Sink
100 LFM 4.1
200 LFM 3.3
°C/W
400 LFM 2.2
Operating Temperature Range
Base Plate -40
+105
°C
Thermal Shutdown
Base Plate
+110
°C
Cooling
See Derating Curves (Page 3)
Humidity
RH, Non-condensing
95
%
Physical
Case Size
2.28 x 1.45 x 0.78 Inches (57.90 x 36.8 x 20.00 mm)
Case Material
Black Anodized Aluminum Case with Aluminum Plate/Heat Sink
Weight
2.6 Oz (74.0g)
Remote On/Off
Parameter
Conditions
Min. Typ. Max. Units
Unit On
3.5 VDC - 12.0 VDC or Open Circuit
Unit Off
0 VDC - 1.2 VDC or Short Circuit
Control Input Current, ON
VCTRL = 5V
0.5
mA
Control Input Current, OFF
VCTRL = 0V
-0.5
mA
Control Common
Referenced to -VIN (Pin 3)
Standby Input Current
2.5
mA
Reliability Specifications
Parameter
Conditions
Min. Typ. Max. Units
MTBF
MIL HDBK 217F, 25°C, Gnd Benign 314.9
kHrs
Absolute Maximum Ratings, See Note 5
Parameter
Conditions
Min. Typ. Max. Units
Input Voltage Surge (100 mS)
77 VDC Input -0.7
110 VDC Input -0.7
165.0
250.0
VDC
Lead Temperature
1.5 mm From Case for 10 Sec
260
°C
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