The 0RQB-C5U54x is an isolated DC-DC converter that operates
from a nominal 24 VDC, 48 VDC source.
This unit will provide up to 162 W of output power from a nominal
24 VDC, 48 VDC input. This unit is designed to be highly efficient.
Features include over current protection, overvoltage protection and
input under-voltage lockout.
• 24/48 VDC Input
• 54 VDC @ 3 A Output
• 1/4th Brick Converter
• Fixed Frequency
• High Efficiency
• Output Over-Voltage Protection
• Over Temperature Protection
• Input Over / Under Voltage Lockout
• Over Current and Short Circuit Protection
• Approved to UL/CSA/IEC60950-1, 2nd +A2 Version
• Class II, Category 2, Isolated DC-DC Converter (refer to IPC-9592B)
• Industrial
• Computers and Peripherals
• Telecommunications
2
0RQB-C5U54x
tech.support@psbel.com
MODEL NUMBER
OUTPUT VOLTAGE
INPUT
VOLTAGE
MAX. OUTPUT
CURRENT
MAX. OUTPUT
POWER
TYPICAL
EFFICIENCY
0RQB-C5U54x
54 VDC
24/48 VDC
3 A
162 W
89%
NOTE: Add “G” suffix at the end of the model number to indicate Tray Packaging.
0
R
QB
-
C5
U
54
x
G
Mounting Type
RoHS Status
Series
Name
Output
Power
Input
Range
Output
Voltage
Active Logic
Package Type
Through Hole
Mount
RoHS
1/4th
Brick
162 W
24/48 V
54 V
L– Active low, with base plate,
0– Active high, with base plate
G – Tray
package
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNITS
Input Voltage
Continuous Non-operating
-0.5
-
80
V
Remote On/Off
-0.3
-
15
V
Trim
0
-
5
V
Current Sink
0
-
10
mA
Isolation Voltage
Input to output
-
-
2250
VDC
Operating Temperature
Temperature measured at the center of the
baseplate, full load
-40
-
90
C
Temperature measured at the center of the
baseplate, half load
-40
-
95
C
Thermal Resistance
Baseplate to heatsink, flat greased surface
-
0.24
-
C /W
Storage Temperature
-55
-
125
C
Altitude
-
-
2000
m
NOTE: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may permanently damage the device.
All specifications are typical at 25°C unless otherwise stated.
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNIT
Operating Input Voltage
18
-
75
V
Input Current
-
-
11
A
Input Current (no load)
Vin = 48 V, Ta = 25C
-
100
150
mA
Input Reflected Ripple Current (rms)
With simulated source impedance of 12 µH,
5 Hz to 20 MHz. Use a 47 µF/100 V electrolytic
capacitor with ESR =1 ohm max, at 25°C.
-
-
15
mA
Input Reflected Ripple Current (pk-pk)
-
-
50
mA
Under-Voltage Turn on Voltage Threshold
Turn on threshold
16
16.8
17.5
V
Under-Voltage Turn off Voltage Threshold
Lockout turn off, non-latching
14
15
15.5
V
Over-Voltage Shutdown Threshold
Auto-recovery and non-latching.
76.5
78
80.3
V
Over-Voltage Recovery Threshold
76
77
78
V
Input Fast-Acting Fuse
Recommended (on system board)
-
15
-
A
CAUTION: This converter is not internally fused. An input line fuse must be used in application.
0RQB-C5U54x
3
Asia-Pacific
+86 755 298 85888
Europe, Middle East
+353 61 225 977
North America
+1 408 785 5200
© 2017 Bel Power Solutions & Protection
Rev. AN
All specifications are typical at nominal input, full load at 25°C unless otherwise stated.
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNIT
Output Voltage Set Point
Test condition of the output set point:
Vin=48V, Io=100% load at 25°C ambient.
53
54
55
V
Load Regulation
-
50
100
mV
Line Regulation
-
50
100
mV
Regulation Over Temperature
-
±200
±350
%/°C
Ripple and Noise (pk-pk)
40 KHz – 100 MHz BW, with 0.1 µF ceramic
capacitor and 1000uF bulk electrolytic at
output.
-
-
300
mV
Ripple and Noise (rms)
-
-
100
mV
Output Current Range
0
-
3
A
Output DC Current Limit
Enter a hiccup mode, non-latching.
3.45
4
4.6
A
Rise Time
Vin = 48 V, Io = 3 A, with 1000 µF bulk
electrolytic at output.
-
0.5
1
s
Start-up Time （from Venable and Vin ）
-
-
2
s
Overshoot at Turn on
-
0
3
%
Undershoot at Turn off
-
0
3
%
Output Capacitance
200
-
1000
µF
Transient Response
△V 50%~75% of Max Load
di/dt = 0.1 A/us, with 1000 µF bulk
electrolytic at output.
-
-
3
%Vout
Settling Time
-
-
2.5
ms
△V 75%~50% of Max Load
-
-
3
%Vout
Settling Time
-
-
2.5
ms
Notes: All specifications are typical at 25 C unless otherwise stated.
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNIT
Efficiency
Io=60% Irate -100% Irate
TA = 25°C, natural-convection air cooler
87
89
-
%
Io=40% Irate-60% Irate
85
87
-
%
Switching Frequency
-
200
-
kHz
Output Voltage Trim Range
50
-
56
V
Over Temperature Protection
Baseplate temperature.
-
120
-
°C
Over Voltage Protection(Static)
Enter a latching. non-hiccup mode
57.5
58
58.5
V
FIT
Calculated Per IEC 62380 TR 1
(UTEC 80-810) (Vin = 24 V, Vo = 54 V,
Io = 3A, 0 LFM, Tac = 50°C, Tae = 35°C)
-
177.58
-
-
MTBF
-
5.63
-
Mhrs
Weight
-
68
-
g
Dimensions (L × W × H)
2.30 x 1.45 x 0.59
58.42 x 36.84 x 15
inch
mm
Isolation Characteristics
Input to Output
-
-
2250
V
Input to Heatsink
-
-
2250
V
Output to Heatsink
-
-
2250
V
Isolation Resistance
10M
-
-
Ohm
Isolation Capacitance
-
-
3900
pF
0RQB-C5U54x
5
Asia-Pacific
+86 755 298 85888
Europe, Middle East
+353 61 225 977
North America
+1 408 785 5200
© 2017 Bel Power Solutions & Protection
Rev. AN
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNIT
Signal Low (Unit On)
Active Low
Remote On/Off pin is open, the module is off.
-0.3
-
0.8
V
Signal High (Unit Off)
2.4
-
15
V
Signal Low (Unit Off)
Active High
Remote On/Off pin is open; the module is on.
-0.3
-
0.8
V
Signal High (Unit On)
2.4
-
15
V
Current Sink
0
-
1
mA
Recommended remote on/off circuit for active low
Control with open collector/drain circuit
Control with photocoupler circuit
Control with logic circuit
Permanently on
Recommended remote on/off circuit for active high
Control with open collector/drain circuit
Control with photocoupler circuit
Control with logic circuit
Permanently on
Vin+
Vin-
On/off
Vin+
Vin-
On/off
Vin+
Vin-
On/off
Vcc
Vin+
Vin-
On/off
Vin+
Vin-
On/off
Vin+
Vin-
On/off
Vin+
Vin-
On/off
Vcc
Vin+
Vin-
On/off
6
0RQB-C5U54x
tech.support@psbel.com
This module has remote sense compensation feature. It can minimize the effects of resistance between module's output and load
in system layout and facilitates accurate voltage regulation at load terminals or other selected point.
The remote sense lines carries very little current and hence do not require a large cross-sectional area.
This module compensates for a maximum drop of 4% of the nominal output voltage.
If the unit is already trimmed up, the available remote sense compensation range should be correspondingly reduced. The total
voltage increased by trim and remote sense should not exceed 4% of the nominal output voltage.
When using remote sense compensation, all the resistance, parasitic inductance and capacitance of the system are incorporated
within the feedback loop of this module. The can make an effect on the module's compensation, affecting the stability and din.
Recommend the connection of remote sense compensation as below figure. There are a resistor RS+ (100 ohm) from Vo+ to
Sense+ and a resistor RS- (100 ohm)) from Vo- to Sense- inside of this module.
If not using remote sense compensation, please connect sense directly to output at module's pin, that is, connect sense+ to Vo+ and
sense- to Vo- at module's pin, the shorter the better. see below figure.
Trim down test circuit
Trim up test circuit
Note: Vo_req=Desired(trimmed) output voltage[V]
Safety:
CSA certificated to UL/IEC60950-1,2nd +A2 version
CB certificated to IEC60950-1,2nd +A2 version
Sense+
Sense-
RS-
Vo-
Vo+
RS+
Load
Sense+
Sense-
RS-
Vo-
Vo+
RS+
Load
Module
Vout
Trim
GND Rtrimdown
_1
54 _
Vo req
Rtrimdown k
Vo req
Module
Vout
Trim
GND
Rtrimup
1 0.02296 1
0.02296 1.24/ _
Rtrimup k
Vo req
0RQB-C5U54x
7
Asia-Pacific
+86 755 298 85888
Europe, Middle East
+353 61 225 977
North America
+1 408 785 5200
© 2017 Bel Power Solutions & Protection
Rev. AN
PIN
FUNCTION
PIN
FUNCTION
1
Vin (+)
5
Sense(-)
2
ON/OFF
6
Trim
3
Vin (-)
7
Sense(+)
4
Vout(-)
8
Vout(+)
Notes: This module is recommended and compatible with Pb-Free Wave Soldering and must be soldered using a peak solder
temperature of no more than 260 ºC for less than 5 seconds.
1) All Pins: Material - Copper Alloy;
Finish – Tin plated
2) Undimensioned components are shown for visual reference only.
3) All dimensions in inches; Tolerances: x.xx +/-0.02 in [0.51 mm]. x.xxx +/-0.010 in [0.25 mm].
8
0RQB-C5U54x
tech.support@psbel.com
DATE
REVISION
CHANGES DETAIL
APPROVAL
2013-5-13
A
First release
Summer Wang
2013-5-21
B
Update General
Jessica Yan
2013-6-25
C
Update General
Jessica Yan
2013-12-17
D
Update Abs Max, Output Specs, General, Efficiency Data, TD, MD
Jessica Yan
2014-2-13
E
Update TD
Jessica Yan
2014-2-26
F
Update Input Specs and TD
Jessica Yan
2014-2-28
G
Update TD
Jessica Yan
2014-9-3
H
Update Input and out specs
Jessica Yan
2014-12-24
I
Update MTBF and FIT
Jessica Yan
2015-2-10
J
Update MD, Description
Jessica Yan
2015-10-23
K
Update the maximum module height from 0.57” to 0.59”.
Jessica Yan
2016-02-26
L
Update Absolute maximum rating
Jessica Yan
2016-04-21
M
Update Safety Certification, MTBF, Thermal Derating Curve.
Jessica Yan
2017-06-07
AN
Update the version.
HL Lu
NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on
the date manufactured. Specifications are subject to change without notice.
