ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
0RQB-C5T Series
•
•
•
•
•
•
•
•
Isolated
High Efficiency
High Power Density
Low Cost
Input Under Voltage Lockout
Fixed Frequency (330 kHz)
Active Low/High (Option)
RoHS Compliant
•
•
•
•
•
•
•
•
OCP/SCP
Rev.B
Output Over Voltage Shutdown
Over Temperature Protection
Remote On/Off
Output Voltage Trim
Positive/Negative Remote Sense
Input Over Voltage Lockout
Basic Isolation
UL60950-1 Recognized (UL/cUL)
Description
The 0RQB-C5T Series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will
provide up to 150 W of output power from a nominal 48 Vdc input. These units are designed to be highly efficient
and low cost. Typical efficiency of 12 Vdc output at 48 Vdc input at full load is 93%. Features include remote
on/off, over current protection and under-voltage lockout. These converters are provided in an industry standard
quarter brick package.
Part Selection
Output
Voltage
12 V
5.0 V
3.3 V
2.5 V
1.8 V
1.5 V
1.2 V
Input
Voltage
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
36 V - 75 V
Max. Output
Current
12 A
30 A
46 A
50 A
50 A
50 A
50 A
Max. Output
Power
144 W
150 W
152 W
125 W
90 W
75 W
60 W
Typical
Efficiency
93.0%
92.5%
91.0%
90.5%
88.0%
85.0%
83.0%
Model Number
Active High
0RQB-C5T120
0RQB-C5T050
0RQB-C5T033
0RQB-C5T025
0RQB-C5TV80
0RQB-C5TV50
0RQB-C5TV20
Model Number
Active Low
0RQB-C5T12L
0RQB-C5T05L
0RQB-C5T03L
0RQB-C5T02L
0RQB-C5TV8L
0RQB-C5TV5L
0RQB-C5TV2L
Notes:
1. Add “G” suffix at the end of the model number to indicate Tray Packaging.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Remote On/Off
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
-
-40
°C
-55
°C
Typ
-
-
-
-
-
Max
80 V
18 V
2000 V
85
°C
125
°C
Notes
Note:
All specifications are typical at nominal input, full load at 25
°C
unless noted.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
Input Specifications
Parameter
Input Voltage
Input Current (full load)
V
O
=12 V
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
Input Current (no load)
Remote Off Input Current
Input Reflected Ripple Current (pk-pk)
Input Reflected Ripple Current (rms)
I t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Input over voltage
Lockout
2
Min
36 V
-
-
-
-
-
-
-
-
-
-
-
32 V
30 V
76 V
Typ
48 V
-
-
-
-
-
-
-
120 mA
10 mA
10 mA
1.5 mA
0.05 A s
34 V
32 V
78 V
2
Max
75 V
4.5 A
4.9 A
4.9 A
4.1 A
3.0 A
2.6 A
2.1 A
180 mA
15 mA
15 mA
3 mA
0.1 A s
35 V
34 V
80 V
2
Notes
Tested with simulated source impedance of
10 uH, 5 Hz to 20 MHz; use a 100 uF /100
V electrolytic capacitor with ESR = 1 ohm
max. at 200 kHz at 25
°C.
Note:
All specifications are typical at nominal input, full load at 25
°C
unless noted.
Output Specifications
Parameter
Output Voltage Set Point
V
O
=12 V
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
Output Voltage Set Point
Line Regulation
V
O
=12 V
V
O
=5.0 V
V
O
=1.2 V-3.3 V
Load Regulation
V
O
=5.0 V-12 V
V
O
=2.5 V-3.3 V
V
O
=1.2 V-1.8 V
Regulation Over Temperature
(-40
°C
to +85
°C)
V
O
=12
V
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V-1.2 V
Output Current
Vo=12 V
Vo=5.0 V
Vo=3.3 V
Vo=1.2 V-2.5 V
-
-
-
-
-
-
-
-
0A
0A
0A
0A
-
-
-
Min
11.790 V
4.925 V
3.260 V
2.450 V
1.770 V
1.477 V
1.176 V
-3.5%Vo,set
Typ
12.030 V
5.004 V
3.308 V
2.503 V
1.808 V
1.500 V
1.200 V
-
Max
12.270 V
5.075 V
3.360 V
2.550 V
1.844 V
1.523 V
1.224 V
3.5%Vo,set
Notes
Vin=48 V, Io=50% full load
Over all operating input voltage,
resistive load, and temperature
conditions.
±8
mV
±5
mV
±3
mV
±10
mV
±5
mV
±2
mV
±60
mV
±40
mV
±30
mV
±20
mV
±15
mV
-
-
-
-
±15
mV
±15
mV
±6
mV
±20
mV
±10
mV
±5
mV
±100
mV
±65
mV
±50
mV
±40
mV
±30
mV
12 A
30 A
46 A
50 A
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
Output Specifications (continued)
Parameter
Current Limit Threshold
V
O
=12 V
V
O
=5.0 V
V
O
=3.3 V
V
O
=1.2 V-2.5 V
Short Circuit Surge Transient
Ripple and Noise (rms)
V
O
=12 V
V
O
=5.0 V
V
O
=3.3 V
V
O
=1.2 V-2.5 V
Ripple and Noise (pk-pk)
V
O
=12 V
V
O
=5.0 V
V
O
=3.3 V
V
O
=1.8 V
Vo=2.5 V
V
O
=1.5 V
V
O
=1.2 V
Turn on Time
Overshoot at Turn on
Output Capacitance
V
O
=12.0 V
V
O
=5.0 V
V
O
=1.2 V-3.3 V
Transient Response
Overshoot
50% ~ 75%
Max Load
Settling Time
Overshoot
75% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 75%
Max Load
Settling Time
Overshoot
75% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 75%
Max Load
Settling Time
Overshoot
75% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 75%
Max Load
Settling Time
Overshoot
75% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 75%
Max Load
Settling Time
Overshoot
75% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 75%
Max Load
Settling Time
Overshoot
75% ~ 50%
Max Load
Settling Time
-
-
-
-
-
-
10 mS
-
0 uF
0 uF
0 uF
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
70 mV
60 mV
50 mV
45 mV
40 mV
55 mV
40 mV
-
0%
-
-
-
600 mV
200 uS
600 mV
200 uS
250 mV
100 uS
250 mV
100 uS
100 mV
200 uS
100 mV
200 uS
100 mV
300 uS
100 mV
300 uS
100 mV
200 uS
100 mV
200 uS
100 mV
200 uS
100 mV
200 uS
90 mV
80 mV
70 mV
60 mV
60 mV
70 mV
60 mV
100 mS
5%
2200 uF
10000 uF
20000 uF
800 mV
300 uS
800 mV
300 uS
375 mV
200 uS
375 mV
200 uS
200 mV
300 uS
200 mV
300 uS
200 mV
400 uS
200 mV
400 uS
140 mV
300 uS
140 mV
300 uS
120 mV
300 uS
120 mV
300 uS
Min
14 A
35 A
50 A
55 A
-
-
-
-
-
Typ
15.5 A
40 A
60 A
60 A
2
3A s
25 mV
20 mV
20 mV
15 mV
Max
18 A
45 A
65 A
65 A
2
5A s
30 mV
25 mV
20 mV
20 mV
Notes
Test conditions:
0-20 MHz BW, with a 1
uF ceramic capacitor and
a 10 uF Tantalum
capacitor at the output.
V
O
=12.0 V
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
Test conditions: di/dt =
0.1 A/uS, Vin=48 V, with
a 1 uF ceramic capacitor
and a 10 uF Tantalum
capacitor at the output.
Vo=1.8 V
V
O
=1.5 V
V
O
=1.2 V
Note:
All specifications are typical at nominal input, full load at 25
°C
unless noted.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
General Specifications
Parameter
Efficiency
V
O
=12 V
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
Switching Frequency
Isolation capacitance
Input to Output Isolation Voltage
Remote Sense Compesation
Output Voltage Trim Range
Over Temperature Protection
Over Voltage Protection
MTBF
Dimensions
Inches
millimeters
Weight
-
2.30 x 1.45 x 0.395
58.42 x 36.83 x 10.03
41 g
-
90%
89%
88%
87%
85%
82%
80%
280 kHz
-
-
-
80% Vo
-
-
93%
92.5%
91%
90.5%
88%
85%
83%
330 kHz
1500 pF
-
-
-
125
°C
130% Vo
1,109,917 hours
-
-
-
-
-
-
-
380 kHz
-
2000 V
10% Vo
110% Vo
-
-
Vin=48V, full load, Hiccup mode
Calculated Per Bell Core SR-332 (I
O
=80% load, Vin=48 V, Vo=3.3 V; T
a
=
25
°C)
The total voltage increased by trim and
remote sense should not exceed
10%Vo.
Min
Typ
Max
Notes
Vin=48 V, full load , Ta=25
°C
Note:
All specifications are typical at nominal input, full load at 25
°C
unless noted.
Control Specifications
Parameter
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Current Sink
Active High
Active Low
-0.3 V
2.4 V
-0.3 V
2.4 V
0 mA
-
-
-
-
-
0.8 V
18 V
0.8 V
18 V
0.75 mA
0RQB-C5TxxL. The remote
on/off pin open, Unit off.
0RQB-C5Txx0. The remote
on/off pin open, Unit on.
Min
Typ
Max
Notes
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs
Output Trim Equations
Equations for calculating the trim resistor are shown below (Unit: kΩ). The Trim Down resistor should be
connected between the Trim pin and Ground pin. The Trim Up resistor should be connected between the Trim pin
and the Vout. Only one of the resistors should be used for any given application.
1) For Vo=1.5 V – 12 V:
Vout
Rtrimdown
=
511
−
10.22
delta
Module
Trim
GND
Rtrimdown
Rtrimup
=
(100
+
delta
)
⋅
Vo
⋅
5.11
−
626
−
10.22
1.225
⋅
delta
Vout
Module
Trim
GND
Rtrimup
Note
:
delta
=
(
Vo
_
req
−
Vo
)
×
100
[
%
]
Vo
Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage
Vo=12.004 V for 12 V output; Vo=5 V for 5.004 V output; Vo=3.308 V for 3.3 V output; Vo=2.503 V for 2.5 V
output; Vo=1.808 V for 1.8 V output; Vo=1.503 V for 1.5 V output
2) For Vo=1.2 V:
Rtrimdown
=
511
−
10.22
delta
Rtrimup
=
(100
+
delta
)
⋅
Vo
⋅
5.11
−
313
−
10.22
0.6125
⋅
delta
Note
:
delta
=
(
Vo
_
req
−
Vo
)
×
100
[
%
]
Vo
Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage
Vo=1.202 V for 1.2 V output
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
京公网安备 11010802033920号
EEWORLD
