ISOLATED DC/DC CONVERTERS
48 Vdc Input, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
0RLC-10Txxx Series
•
•
•
•
•
•
RoHS Compliant
•
•
•
•
•
Rev.A
Isolated
Fixed Frequency
High Power Density
High Efficiency
Output Over-Voltage Shutdown
Safety Approval to UL60950-1 (Pending)
Low Cost
Trim
OCP/SCP
Remote On/Off
Active Low/High (Option)
Description
The 0RLC-10T Series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will
provide up to 12 W of output power from a nominal 48 Vdc input. These units are designed to be highly efficient
and very low cost. Features include remote on/off, over current protection and short circuit protection. These
converters are provided in an industry standard package.
Part Selection
Output
Voltage
3.3 Vdc
5.0 Vdc
12 Vdc
24 Vdc
Input Voltage
36 Vdc - 75 Vdc
36 Vdc - 75 Vdc
36 Vdc - 75 Vdc
36 Vdc - 75 Vdc
Max. Output
Current
2A
2A
1A
0.5 A
Max. Output
Power
6.6 W
10 W
12 W
12 W
Typical
Efficiency
77%
82%
83%
85%
Model Number
Active High
0RLC-10T033
0RLC-10T050
0RLC-10T120
0RLC-10T240
Model Number
Active Low
0RLC-10T03L
0RLC-10T05L
0RLC-10T12L
0RLC-10T24L
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
Continuous Input Voltage
Peak/Surge Input Voltage
Remote On/Off (Active Low)
Remote On/Off (Active High)
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
-0.3 V
-0.3 V
0
°C
-40
°C
Typ
-
-
-
-
-
-
Max
75 V
100 V
18 V
7V
70
°C
125
°C
Notes
Transients of 100 ms or less in duration
Input Specifications
Parameter
Input Voltage
Input Current (no load)
Input Current (full load)
Remote Off Input Current (Active Low)
Remote Off Input Current (Active High)
Input Reflected Ripple Current
(pk-pk)
Input Reflected Ripple Current
(rms)
I t Inrush Current Transient
Turn-on Voltage Threshold
2
Min
36 V
-
-
-
-
-
-
-
Typ
-
-
-
5 mA
-
15 mA
5 mA
0.039 A s
30 V
2
Max
75 V
40 mA
0.45 A
10 mA
10 mA
30 mA
10 mA
0.062 A s
-
2
Notes
With simulated source impedance of
10 uH, 5 Hz to 20 MHz; use a
47uF/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 otherwise stated.
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, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Output Specifications
Parameter
Output Voltage Set Point
V
O
=3.3 V
V
O
=5.0 V
V
O
=12 V
V
O
=24 V
Line Regulation
V
O
=3.3 V
V
O
=5.0 V
V
O
=12 V
V
O
=24 V
Load Regulation
V
O
=3.3 V
V
O
=5.0 V
V
O
=12 V
V
O
=24 V
Regulation Over Temperature
(0
°C
to 70
°C)
Output Current
V
O
=3.3 V
V
O
=5.0 V
V
O
=12 V
V
O
=24 V
Current Limit Threshold
V
O
=3.3 V
V
O
=5.0 V
V
O
=12 V
V
O
=24 V
Short Circuit Surge Transient
Ripple and Noise (rms)
V
O
=3.3 V
V
O
=5.0 V
V
O
=12 V
V
O
=24 V
Ripple and Noise (pk-pk)
V
O
=3.3 V
V
O
=5.0 V
V
O
=12 V
V
O
=24 V
Turn on Time
Power On
Remote On
Overshoot at Turn on
Output Capacitance
V
O
=3.3 V
V
O
=5.0 V
V
O
=12 V
V
O
=24 V
-
0.5 mS
-
0 uF
0 uF
0 uF
0 uF
-
-
0%
-
-
-
-
200 mS
40 mS
3%
800 uF
800 uF
100 uF
20 uF
-
-
-
-
40 mV
60 mV
80 mV
120 mV
60 mV
100 mV
120 mV
180 mV
-
-
-
10 mV
18 mV
21 mV
45 mV
15 mV
30 mV
40 mV
70 mV
0 - 20 MHz BW ,
with 1 uF ceramic load
capacitance
-
-
-
-
-
3.0 A
3.0 A
1.5 A
0.75 A
TBD
-
-
-
-
-
As
2
Min
3.201 V
4.850 V
11.64 V
23.28 V
-
-
-
-
-
-
-
-
-
0.2 A
0.2 A
0.1 A
0.05 A
Typ
3.30 V
5.00 V
12.00 V
24.00 V
5 mV
10 mV
20 mV
35 mV
10 mV
15 mV
36 mV
48 mV
75 mV
-
-
-
-
Max
3.399 V
5.150 V
12.36 V
24.72 V
10 mV
15 mV
36 mV
48 mV
15 mV
25 mV
60 mV
80 mV
150mV
2.0 A
2.0 A
1.0 A
0.5 A
Notes
V
in
=48 V for all outputs
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, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Output Specifications (continued)
Parameter
Transient Response
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
100 mV
200 uS
100 mV
200 uS
100 mV
100 uS
100 mV
100 uS
150 mV
150 uS
150 mV
150 uS
350 mV
200 uS
350 mV
200 uS
150 mV
300 uS
150 mV
300 uS
150 mV
150 uS
150 mV
150 uS
250 mV
200 uS
250 mV
200 uS
500 mV
250 uS
500 mV
250 uS
Min
Typ
Max
Notes
V
O
=3.3 V
V
O
=5.0 V
di/dt = 0.1 A/uS; Vin = 48
V; Ta = 25
°C
and 1 uF
ceramic capacitor
V
O
=12 V
V
O
=24 V
Note:
All specifications are typical at nominal input, full load at 25
°C
unless otherwise stated.
General Specifications
Parameter
Efficiency
V
O
=3.3 V
V
O
=5.0 V
V
O
=12 V
V
O
=24 V
Switching Frequency
Output Trim Range
MTBF
Dimensions
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Weight
-
1.91 x 0.98 x 0.477
48.51 x 24.89 x 12.12
10.3 g
73%
78%
79%
81%
200 kHz
95%V
O
77%
82%
83%
85%
250 kHz
-
TBD
-
-
-
-
300 kHz
105%V
O
V
in
=48 V, I
O
= I
O
max
Min
Typ
Max
Notes
For all outputs
Calculated Per Bell Core SR-332 (I
O
=
Nomal; T
a
= 25
°C)
-
Note:
All specifications are typical at 25
°C
unless otherwise stated.
Control Specifications
Parameter
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Active Low
Active High
-0.3 V
3.5 V
-0.3 V
3.5 V
-
-
-
-
0.8 V
18 V
0.8 V
7V
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, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Output Trim Equations
Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) and the nominal
output voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between
the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of
the resistors should be used for any given application.
Vout
Trim
GND
R
TrimDown
A
=
−
B
V
nom
−
V
adj
Rtrimdown
Module
R
TrimUp
=
V
adj
C
−
D
−
V
nom
A
489.490
113.550
56.410
21.628
Vout
Module
Trim
Rtrimup
GND
Vnom
24
12
5.0
3.3
B
28.310
16.990
51.200
75.400
C
26.660
13.020
18.228
13.020
D
6.810
6.490
36.500
64.900
Efficiency Data
90.0%
85.0%
EFFICIENCY
80.0%
75.0%
70.0%
65.0%
60.0%
55.0%
50.0%
0.20
0.50
1.00
1.50
OUTPUT CURRENT(A)
2.00
36V
48V
75V
90.00%
85.00%
80.00%
75.00%
70.00%
65.00%
60.00%
55.00%
50.00%
36V
48V
75V
EFFICIENCY
0.00
0.50
1.00
1.50
OUTPUT CURRENT (A)
2.00
0RLC-10T033
90.00%
85.00%
80.00%
75.00%
70.00%
65.00%
60.00%
55.00%
50.00%
0.00
90.00%
85.00%
EFFICIENCY
36V
48V
75V
0RLC-10T050
EFFICIENCY
80.00%
75.00%
70.00%
65.00%
60.00%
55.00%
50.00%
36V
48V
75V
0.20 0.40 0.60 0.80
OUTPUT CURRENT (A)
1.00
0.05
0.13
0.25
0.38
OUTPUT CURRENT (A)
0.50
0RLC-10T120
0RLC-10T240
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, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Thermal Derating Curves
Vo=3.3 V, Io=2 A
Vo=5 V, Io=2 A
Vo=12 V, Io=1 A
Vo=24 V, Io=0.5 A
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
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