BEL 0RCB

ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc /15 A Output, 1/8 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Nov. 30, 2010
0RCB-60T03C Rev.B
RoHS Compliant
File Rev.A
Features
•
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
•
Positive/Negative Remote Sense
•
Pre-Bias Start Up
•
Basic Insulation
•
UL 60950-1, 2 Edition
•
CSA C22.2 , 2nd Edition
nd
Applications
•
Networking
•
Computers and peripherals
•
Telecommunications
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
3.3 Vdc
Input Voltage
36 Vdc - 75 Vdc
Max. Output
Current
15 A
Max. Output
Power
49.5 W
Typical
Efficiency
90%
Model Number
Active Low
0RCB-60T03C
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R CB – 60 T 03 C
1 2
3
4
5 6
7
1---Through hole
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name
4---Series code
5---Input range (36-75V)
6---Output voltage 3.3V
7---Suffix
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
1
ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc /15 A Output, 1/8 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Nov. 30, 2010
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Unit
Input Voltage (continuous)
-0.3
-
80
V
Remote On/Off
-0.3
-
18
V
I/O Isolation Voltage
Notes
-
-
1500
V
Input to Each Output Resistance
10
-
-
M ohm
Ambient Temperature
-40
-
85
°C
Storage Temperature
-55
-
125
°C
Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may
permanently damage the device.
Input Specifications
Parameter
Input Voltage
Min
36
Typ
48
Max
75
Unit
V
Input Current (full load)
-
-
1.8
A
Input Current (no load)
-
-
80
mA
Input Reflected Ripple Current
(pk-pk)
-
-
15
mA
Input Fuse (not internally)
-
-
5.0
A
I t Inrush Current Transient
-
-
0.1
As
Turn-on Voltage Threshold
32
-
35
V
Turn-off Voltage Threshold
28.5
-
31.7
V
2
Notes
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.
2
Note: All specifications are typical at 25 °C unless otherwise stated.
Output Specifications (continued)
Parameter
Min
Typ
Max
Unit
Output Voltage Range
3.201
3.3
3.399
V
Output Voltage Trim Range
2.97
-
3.63
V
Output Over-Voltage Clamp Non-Latching
3.69
-
4.62
V
Output Current
-
-
15
A
15.2
-
26
A
External Admissible Capacitive Load
0
-
10000
uF
Ripple and Noise (pk-pk)
-
-
130
mV
Turn on Time
-
-
220
mS
Rise Time
-
-
15
mS
Vpk-pk
-
-
230
mV
Settling Time
-
-
200
uS
Current Limit Threshold
Notes
Over all line, load & temperature
conditions.
Vin=72 V, max load on output, 20
MHz BW, 10uF tantalum and 1uF
ceramic capacitor.
Transient Response
50% ~ 75% ~ 50%
Max Load
di/dt=0.1A/us, Vin=48Vdc,
Ta=25°C, with a 1µF ceramic
capacitor and a 10uF Tantalum
cap at the output.cap at the
output.
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
2
ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc /15 A Output, 1/8 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Nov. 30, 2010
General Specifications
Efficiency
Parameter
Min
87
Typ
90
Max
-
Unit
%
Switching Frequency
270
300
330
kHz
Isolation capacitance
-
3900
-
pF
Remote Sense Compensation
-
-
10
%
Over Temperature Protection
-
125
-
°C
Weight
-
26
-
g
MTBF
Notes
Measured with full load at all conditions.
The total voltage increased by trim and
remote sense should not exceed 10%Vo.
2,370,000
hours
2.30 x 0.896 x 0.374
58.42 x 22.76 x 9.50
-
Calculated Per Bell Core SR-332 (Vin=48
V, Vo=3.3 V, Io=12 A, Ta = 25 °C)
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Note: All specifications are typical at 25 °C unless otherwise stated.
Remote On/Off
Parameter
Signal Low (Unit On)
Signal High (Unit Off)
Active Low
Min
-0.3
Typ
-
Max
0.8
Unit
V
2.4
-
18
V
0
-
1
mA
Current Sink
Notes
The remote on/off pin open, Unit off.
Efficiency Data
Efficient
Efficient Curve
92%
90%
88%
86%
84%
82%
80%
78%
76%
74%
72%
70%
38.4 V
48 V
60 V
72 V
5
10
15
Output Current (A)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
3
ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc /15 A Output, 1/8 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Nov. 30, 2010
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.
Rtrimdown =
Sense(+)
511
− 10.22[kΩ]
delta
Module
Trim
Rtrimdown
Rtrimup = (
Sense(-)
(100 + delta ) ⋅ Vo ⋅ 5.11 511
−
− 10.22)[kΩ]
1.225 ⋅ delta
delta
Sense(+)
Rtrimup
Note:
delta =
Module
(Vo _ req − Vo ) × 100 [% ]
Trim
Sense(-)
Vo
Vo_req=Desired (trimmed) output voltage [V]
Output voltage Vo=3.305 V
Fundamental Circuit Diagram
1
8
4
2
Control
Control
3
7
Choke
Capacitor
Isolated
Feedback
5
6
Resistor
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
4
ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc /15 A Output, 1/8 Brick Converter
Nov. 30, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curves
Vin=48V, with maximum junction temperature of semiconductors derated to 120 degree C.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
5
ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc /15 A Output, 1/8 Brick Converter
Nov. 30, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curves (continued)
Temperature reference points on top side
Temperature reference points on bottom side
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
6
ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc /15 A Output, 1/8 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Nov. 30, 2010
Safety
Material flammability: UL94V-0
Electromagnetic Compatibility EMC
1. Electric field
IEC801-3(1984), IEC1000-4-3
2. Fast transient/burst
IEC801-4(1988), IEC1000-4-4
Input RFI level conducted and radiated (subject to test by customer)
Compliance to EN55022 class A (both q.peak and average) with the following inductive and capacitive filter
C4
+Vin
T1
C1
C2
C3
Conv.positive
input
Conv.negative
input
-Vin
T1
C5
C1=3.3 uF /100 V;
C2=C3= 47 uF/100 V;
C4=C5=1000 pF/250 Volt;
T1=3 mH.
Level
[dB? ]
80
60
x
+
x
x
+
40
+
x
+
x
+
x
+
20
0
-20
150k
x x MES
+ + MES
MES
MES
300k
500k
05-1012-12L_fin
05-1012-12L_fin
05-1012-12L_pre
05-1012-12L_pre
1M
2M
3M
Frequency [Hz]
4M
6M
10M
30M
QP
AV
PK
AV
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
7
ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc /15 A Output, 1/8 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Nov. 30, 2010
Transient Response Waveforms
Note: Dynamic load transient at Vin = 48 V, Ta = 25 °C, Io=(50%~75%~50%)Ionom, di/dt=0.1 A/uS.
Ripple and Noise Waveforms
C1=10 uF tantalum, C2=1 uF ceramic;
R=50 ohm;
C=220 nF
.
Vin =38.4 V and Iout = 15 A
Vin =48 V and Iout = 15 A
Vin =72 V and Iout = 15 A
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
8
ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc /15 A Output, 1/8 Brick Converter
Nov. 30, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Mechanical Outline
Pin Connections
Pin
Name
Function
Pin Dia
1
Vin+
0.040’’
2
On/Off
3
4
5
6
7
8
VinVoutSenseTrim
Sense+
Vout+
Positive input voltage
Input to turn converter
on and off, referenced
to VinNegative input voltage
Negative output voltage
Negative remote sense
Output voltage trim
Positive output voltage
Positive output voltage
0.040’’
0.040’’
0.062’’
0.040’’
0.040’’
0.040’’
0.062’’
Note: The module doesn't guarantee at least 0.7mm as clearance Notes: 1. Pin 5 must be connected to Vout-.
distance on bottom side. This issue should be considered if
2. Leave Pin 6 open for nominal voltage.
any copper traces are on the top side of the user's board.
3. Pin 7 must be connected to Vout+.
Note: 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.
Note:
1) All Pins: Material - Copper Alloy;
Finish – 3 micro inches minimum Gold over 50 micro inches minimum Nickel plate.
2) Undimensioned components are shown for visual reference only.
3) All dimensions in inches (mm); Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm).
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
9
ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc /15 A Output, 1/8 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Nov. 30, 2010
Revision History
Date
Revision
2009-11-26
A
2010-11-30
B
Changes Detail
Approval
First Release
XF Jiang
nd
Add UL 60950-1, 2 Edition and CSA C22.2, 2
page.
nd
Edition in the first
XF Jiang
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2010 Bel Fuse Inc. Specifications subject to change without notice. 113010
10
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
Bel Fuse Ltd.
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com