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0RCB-60T03C

P1-P3P4-P6P7-P9
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 /15 A Output, 1/8 Brick Converter
• Isolated • Output Over-Voltage Shutdown
• High Efficiency • OCP/SCP
• High Power Density • Over Temperature Protection
• Fixed Frequency (300 kHz) • Remote On/Off
• Low Cost • Output Voltage Trim
• Input Under-Voltage Lockout
• Pre-Bias Start Up
• Positive/Negative Remote Sense
• Basic Insulation
Description
The 0RCB-60T03C is isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will provide
up to 49.5 W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and low
cost. Features include remote on/off, over current protection and under-voltage lockout. This converter is
provided in an industry standard eighth brick package.
Part Selection
Output
Voltage
Input Voltage Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
3.3 Vdc 36 Vdc - 75 Vdc 15 A 49.5 W 90% 0RCB-60T03C
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 Min Typ Max Notes
Input Voltage (continuous) -0.3 V - 80 V
Remote On/Off -0.3 V - 18 V
I/O Isolation Voltage - - 1500 V
Input to Each Output Resistance 10M ohm - -
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
125 °C
Input Specifications
Parameter Min Typ Max Notes
Input Voltage 36 V 48 V 75 V
Input Current (full load) - - 1.8 A
Input Current (no load) - - 80 mA
Input Reflected Ripple Current (pk-pk) - - 15 mA
Tested with simulated source impedance
of 10 uH, 5 Hz to 20 MHz; use a 47 uF/100
V electrolytic capacitor with ESR = 1 ohm
max. at 200 kHz at 25 °C.
Input Fuse (not internally) - - 5.0 A
I
2
t Inrush Current Transient - - 0.1 A
2
s
Turn-on Voltage Threshold 32 V - 35 V
Turn-off Voltage Threshold 28.5 V - 31.7 V
0RCB-60T03C Rev.B RoHS Com
p
liant File Rev.
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 3.3 Vdc /15 A Output, 1/8 Brick Converter
Output Specifications
Parameter Min Typ Max Notes
Output Voltage Range 3.201 V 3.3 V 3.399 V
Over all line, load & temperature
conditions.
Output Voltage Trim Range 2.97 V - 3.63 V
Output Over-Voltage Clamp Non-Latching 3.69 V - 4.62 V
Output Current - - 15 A
Current Limit Threshold 15.2 A - 26 A
External Admissible Capacitive Load 0 uF - 10000 uF
Ripple and Noise (pk-pk) - - 130 mV
Vin=72 V, max load on output, 20
MHz BW, 10uF tantalum and 1uF
ceramic capacitor.
Turn on Time - - 220 mS
Rise Time - - 15 mS
Transient Response
Vpk-pk - - 230 mV
50% ~ 75% ~ 50%
Max Load
Settling Time - - 200 uS
di/dt=0.1A/us, Vin=48Vdc,
Ta=25°C, with a 1µF ceramic
capacitor and a 10uF Tantalum cap
at the output.
Note: All specifications are typical at 25 °C unless otherwise stated.
General Specifications
Parameter Min Typ Max Notes
Efficiency 87% 90% - Measured with full load at all conditions.
Switching Frequency 270 kHz 300 kHz 330 kHz
Isolation capacitance - 3900 pF -
Remote Sense Compensation - - 10%
The total voltage increased by trim and
remote sense should not exceed
10%Vo.
Over Temperature Protection -
125 °C
-
MTBF 2,370,000 hours
Calculated Per Bell Core SR-332
(Vin=48 V, Vo=3.3 V, Io=12 A, T
a = 25
°C)
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
2.30 x 0.896 x 0.374
58.42 x 22.76 x 9.50
Weight - 26 g -
Note: All specifications are typical at 25 °C unless otherwise stated.
Control Specifications
Parameter Min Typ Max Notes
Remote On/Off
Signal Low (Unit On) -0.3 V - 0.8 V
Signal High (Unit Off)
Active Low
2.4 V - 18 V
The remote on/off pin open, Unit
off.
Current Sink 0 mA - 1 mA
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 /15 A Output, 1/8 Brick Converter
Output Trim Equations
Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected
between the Trim pin and Sense (-) pin. The Trim Up resistor should be connected between the Trim pin and the
Sense (+). Only one of the resistors should be used for any given application.
Note:
Vo_req=Desired (trimmed) output voltage [V]
Output voltage Vo=3.305 V
Efficiency Data
Efficient Curve
70%
72%
74%
76%
78%
80%
82%
84%
86%
88%
90%
92%
51015
Output Current (A)
Efficient
38.4 V
48 V
60 V
72
V
()
[]
%100
_
×
−
=
Vo
VoreqVo
delta
Module
Sense(+)
Trim
Sense(-)
Rtrimup
Module
Sense(+)
Trim
Sense(-)
Rtrimdown
[]
Ω−−
⋅
⋅
⋅
+
= k
deltadelta
Vodelta
Rtrimup )22.10
511
225.1
11.5)100(
(
[]
Ω−= k
delta
Rtrimdown 22.10
511
P1-P3P4-P6P7-P9

0RCB-60T03C

Mfr. #:
Buy 0RCB-60T03C
Manufacturer:
Bel
Description:
DC DC CONVERTER 3.3V 50W
Lifecycle:
New from this manufacturer.
Delivery:
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