ISOLATED DC/DC CONVERTERS
48 V Input 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
0RCY-60T Series
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•
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Isolated
High Efficiency
High Power Density
Fix Frequency (300 kHz)
Low Cost
Input Under Voltage Lockout
UL60950 Recognized (UL/cUL)
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•
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RoHS Compliant
Output Over Voltage Shutdown
OCP/SCP
Over Temperature Protection
Remote On/Off Logic (Option)
Output Voltage Trim
Positive/Negative Remote Sense
Basic Isolation
Description
The 0RCY-60T Series are isolated dc/dc converters that operate from a nominal 48 V source. These units
provide up to 60 W of output power from a nominal 48 V input. These units are designed to be highly efficient
and low cost. Features include remote on/off, short circuit protection, over current protection, over temperature
protection, input under voltage lockout, and output over voltage protection. These converters are provided in an
industry standard eighth brick package.
Part Selection
Output
Voltage
12.0 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
5A
12 A
15 A
15 A
15 A
15 A
15 A
Max. Output
Power
60.0 W
60.0 W
50.0 W
37.5 W
27 W
22.5 W
18 W
Typical
Efficiency
91%
91%
89%
87%
85%
84%
82%
Model Number
Active High
0RCY-60T120
0RCY-60T050
0RCY-60T033
0RCY-60T025
0RCY-60TV80
0RCY-60TV50
0RCY-60TV20
Model Number
Active Low
0RCY-60T12L
0RCY-60T05L
0RCY-60T03L
0RCY-60T02L
0RCY-60TV8L
0RCY-60TV5L
0RCY-60TV2L
Note:
Add “G” suffix at the end of the model number to indicate Tray Packaging.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Remote On/Off
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-2 V
-
-40
°C
-55
°C
Typ
-
-
-
-
-
Max
80 V
18 V
2000 V
85
°C
125
°C
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 V Input 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Input Specifications
Parameter
Input Voltage
Input Current (full load)
Vo=12.0 V
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Input Current (no load)
Vo=12.0 V
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.2 V - 1.8 V
Remote Off Input Current
Input Reflected Ripple Current(rms)
Input Reflected Ripple Current(Pk-Pk)
I t Inrush Current Transient
Turn on Voltage Threshold
Turn off Voltage Threshold
2
Min
36 V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
32 V
30 V
Typ
48 V
-
-
-
-
-
-
-
90 mA
55 mA
45 mA
40 mA
30 mA
2 mA
4 mA
20 mA
0.01 A s
34 V
32 V
2
Max
75 V
3.0 A
2.8 A
2.6 A
2.0 A
1.4 A
1.2 A
0.9A
130 mA
75 mA
70 mA
70 mA
60 mA
10 mA
10 mA
40 mA
0.02 A s
35 V
33 V
2
Notes
with simulated source
impedance of 10 uH; a
100uF/100V electrolytic
capacitor with ESR = 1 ohm
max. 5 Hz to 20 MHz
Note:
All specifications are typical at 25
°C
unless otherwise stated.
Output Specifications
Parameter
Output Voltage Set Point
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Line Regulation
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Load Regulation
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
-
-
-
-
-
-
-
±12
mV
±5
mV
±3
mV
±3
mV
±3
mV
±3
mV
±3
mV
±24
mV
±10
mV
±7
mV
±7
mV
±7
mV
±7
mV
±7
mV
-
-
-
-
-
-
-
Min
11.760 V
4.925 V
3.250 V
2.463 V
1.773 V
1.478 V
1.182 V
Typ
12.0 V
5.0 V
3.3 V
2.5 V
1.8 V
1.5 V
1.2 V
±30
mV
±10
mV
±7
mV
±6
mV
±5
mV
±5
mV
±5mV
Max
12.240 V
5.075 V
3.350 V
2.538 V
1.827 V
1.523 V
1.218 V
±60
mV
±20
mV
±15
mV
±12
mV
±10
mV
±10
mV
±10
mV
Notes
Vin=48 V, Io=50% full
load, Ta=25
°C.
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 V Input 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Output Specifications (continued)
Parameter
Regulation Over Temperature
(-40
°C
to +85
°C)
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
V
O
=1.2 V
Output Current
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Current Limit Threshold
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Short Circuit Surge Transient
Ripple and Noise (rms)
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Ripple and Noise (pk-pk)
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2 V
Turn on Time
Overshoot at Turn on
Output Capacitance
V
O
=12.0 V
V
O
=5.0 V
Vo=3.3 V
V
O
=2.5 V
V
O
=1.8 V
Vo=1.5 V
Vo=1.2V
-
-
-
-
-
-
-
-
-
0 uF
0 uF
0 uF
0 uF
0 uF
0 uF
0 uF
100 mV
95 mV
55 mV
55 mV
45 mV
45 mV
45 mV
15 mS
0%
-
-
-
-
-
-
-
130 mV
120 mV
80 mV
80 mV
70 mV
70 mV
70 mV
30 mS
5%
1000 uF
10000 uF
18000 uF
18000 uF
18000 uF
18000 uF
18000 uF
-
-
-
-
-
-
-
25 mV
25 mV
15 mV
12 mV
10 mV
10 mV
10 mV
50 mV
50 mV
30 mV
25 mV
20 mV
20 mV
20 mV
5.5 A
13.5 A
16 A
16 A
16 A
16 A
16 A
-
6.5 A
16 A
18 A
18 A
18 A
18 A
18 A
3A s
2
Min
Typ
±60
mV
±45
mV
±30
mV
±25
mV
±20
mV
±15
mV
±12
mV
-
-
-
-
-
-
-
Max
±100
mV
±75
mV
±50
mV
±40
mV
±30
mV
±25
mV
±20mV
5A
12 A
15 A
15 A
15 A
15 A
15 A
8A
19 A
20 A
20 A
20 A
20 A
20 A
5A s
2
Notes
-
-
-
-
-
-
-
0A
0A
0A
0A
0A
0A
0A
Test conditions: Vin=48
V, Ta=25
°C,
with a
1uF ceramic capacitor
and a 10 uF Tantalum
capacitor at the output.
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 V Input 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Output Specifications (continued)
Parameter
Transient Response
Overshoot
25% ~ 50%
Max Load
Settling Time
V
O
=12.0 V
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
V
O
=5.0 V
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
V
O
=3.3 V
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
V
O
=2.5 V
Overshoot
50% ~ 25%
Max Load
Settling Time
Overshoot
25% ~ 50%
Max Load
Settling Time
V
O
=1.8 V - 1.2 V
Overshoot
50% ~ 25%
Max Load
Settling Time
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ
300 mV
400 uS
300 mV
400 uS
200 mV
300 uS
200 mV
300 uS
130 mV
150 uS
130 mV
150 uS
130 mV
150 uS
130 mV
150 uS
120 mV
150 uS
120 mV
150 uS
Max
400 mV
500 uS
400 mV
500 uS
230 mV
400 uS
230 mV
400 uS
160 mV
200 uS
160 mV
200 uS
160 mV
200 uS
160 mV
200 uS
150 mV
200 uS
150 mV
200 uS
Notes
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.
Note:
All specifications are typical at 25
°C
unless otherwise stated.
General Specifications
Parameter
Efficiency
V
O
=12.0 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
Output Voltage Trim Range
Remote Sense Compesation
Over Temperature Protection
Over Voltage Protection
MTBF
Dimensions
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Weight
-
2.30 x 0.896 x 0.411
58.42 x 22.86 x 10.45
20 g
-
88%
88%
87%
85%
83%
82%
80%
270 kHz
-
80%Vo
-
-
-
91%
91%
89%
87%
85%
84%
82%
300 kHz
1500 pF
-
-
125
°C
130%Vo
2,410,000 hours
-
-
-
-
-
-
-
330 kHz
-
110%Vo
10%Vo
-
-
Vin=48V, full load, in hiccup mode
Calculated Per Bell Core SR-332 (I
O
=
12 A, Vin=48 V, Vo=3.3 V, T
a
= 25
°C,
No forced air)
The total voltage increased by trim and
remote sense should not exceed
10%Vo
Min
Typ
Max
Notes
Vin=48 V, full load
Note:
All specifications are typical 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 V Input 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
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 Low
Active High
-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
0RCY-60TxxL. The remote
on/off pin open, Unit off
0RCY-60Txx0. The remote
on/off pin open, Unit on
Min
Typ
Max
Notes
Output Trim Equations
Equations for calculating the trim resistor (in kΩ) are shown below. 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.
Rtrimdown
=
511
−
10.22
delta
Module
Vout
Trim
Rtrimdown
GND
1.Vo =12 V-1.5 V
(100
+
delta
)
⋅
Vo
⋅
5.11
−
626
Rtrimup
=
−
10.22
1.225
⋅
delta
2. Vo =1.2 V
Vout
Rtrimup
=
(100
+
delta
)
⋅
Vo
⋅
5.11
−
626
−
10.22
1.225
⋅
delta
Rtrimup
Module
Trim
GND
Notes:
delta
=
(
Vo
_
req
−
Vo
)
×
100
[
%
]
Vo
Vo_req=Desired (trimmed) output voltage [V]
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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