BEL 0RQB-Q2T06_11

ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
0RQB-Q2T06x
RoHS Compliant
Inc., a subsidiary of Bel Fuse Inc.
Rev.J
Features

Isolated

Output Over-Voltage Shutdown

High Efficiency

Over Temperature Protection

High Power Density

OCP/SCP

Fixed Frequency (300 kHz)

Remote On/Off

Low Cost

Basic Insulation

Input Under-Voltage Lockout

Input Over-Voltage Lockout

Class 1, Category 2, Isolated DC/DC Converter (refer to IPC-9592)

UL60950-1 Recognized (UL/cUL) (Pending)
Applications

Networking

Computers and peripherals

Telecommunications
Description
The 0RQB-Q2T06x is an isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will
provide up to 390 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. The converter is
provided in an industry standard quarter brick package.
Part Selection
Output
Voltage
6.5 Vdc
Input Voltage
36 Vdc - 75 Vdc
Max. Output
Current
60 A
Max. Output
Power
390 W
Typical
Efficiency
95%
Model Number
Active High
0RQB-Q2T065
Model Number
Active Low
0RQB-Q2T06L
Note: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R QB – Q2 T 06 x
1 2
3
4
5
6 7
1---Through hole
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name, 1/4 Brick
4---Series code
5---Input range 48V wide (36-75V)
6---Output voltage (6.5V)
7---Option, “x” of the model part number to be 0-9, A-Z, which will represent the special request of
customer.
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
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Absolute Maximum Ratings
Max
Unit
-
80
V
-
100
V
-0.3
-
18
V
-
-
1500
V
Ambient Temperature
-40
-
85
C
Storage Temperature
-55
-
125
C
Parameter
Continuous Input Voltage
Input Transient Voltage
Remote On/Off
I/O Isolation Voltage
Min
Typ
-0.3
-
Notes
Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may
permanently damage the device.
Input Specifications
Parameter
Operating Input Voltage
Min
36
Typ
48
Max
75
Input Current (full load)
Input Current (no load)
-
-
13.0
A
-
80
100
mA
Remote Off Input Current
-
15
20
mA
Input Reflected Ripple Current
(rms)
-
5
10
mA
Input Reflected Ripple Current
(pk-pk)
-
20
40
mA
I t Inrush Current Transient
-
-
1
As
Turn-on Voltage Threshold
33
34.5
36
V
Turn-off Voltage Threshold
32
33.5
34.5
V
2
Unit
V
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.
2
CAUTION: This converter is not internally fused. An input line fuse must be used in application.
Recommend a fast-acting fuse with maximum rating of 20A on system board. Refer to the fuse
manufacture’s datasheet for further information.
Notes: 1. This converter has internal C-L-C (0uF-0.72uH-9.4uF) filter.
2. All specifications are typical at 25 C unless otherwise stated.
Output Specifications
Parameter
Output Voltage Set Point
Min
6.37
Typ
6.50
Max
6.63
Unit
V
Load Regulation
-
±15
±30
mV
Line Regulation
-
±15
±30
mV
Regulation Over Temperature
(-40deg.C-85deg.C)
-
±30
±65
mV
Ripple and Noise (pk-pk)
-
50
120
mV
Ripple and Noise (rms)
-
10
25
mV
Ripple and Noise (pk-pk)
under worst case
-
-
150
mV
Notes
Vin=48V, Io=50% load
0-20 MHz BW, with a 1µF ceramic
capacitor and a 470uF Tantalum cap at
output.
over all operating input voltage, load
and temperature conditions.
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
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Output Specifications (continued)
Min
Typ
Max
Unit
Output Current Range
Parameter
0
-
60
A
Output DC Current Limit
64
72
75
A
Short Circuit Surge Transient
-
-
6
As
Rise time
-
25
-
ms
40
50
mS
Enable from Vin
-
40
50
mS
Enable from ON/OFF
Overshoot at Turn on
-
0
3
%
Output Capacitance
0
-
10000
uF
Turn on Time
Notes
2
Transient Response
△V50%~75% of
Overshoot
-
-
400
mV
Max Load
Settling Time
-
-
300
uS
△V75%~50% of
Overshoot
-
-
400
mV
Max Load
Settling Time
-
-
300
uS
△V50%~75% of
Overshoot
-
-
500
mV
Max Load
Settling Time
-
-
300
uS
△V75%~50% of
Overshoot
-
-
500
mV
Max Load
Settling Time
-
-
300
uS
di/dt=0.1A/us, Vin=48Vdc, Ta=25°C,
with a 1µF ceramic capacitor and a
470uF Tantalum cap at the output.
di/dt=1A/us, Vin=48Vdc, Ta=25°C,
with a 1µF ceramic capacitor and a
470uF Tantalum cap at the output.
Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated.
General Specifications
Parameter
Min
94
Typ
95
Max
-
Unit
%
Switching Frequency
-
300
-
kHz
Over Temperature Protection
-
125
-
C
Over Voltage Protection(Static)
-
8.5
-
V
Weight
-
71
-
g
Efficiency
FIT
478
-
2.28 x 1.45 x 0.54
57.91 x 36.83 x 13.70
-
Notes
Vin=48V, full load
Calculated Per Bell Core SR-332
(Vin=48V, Vo=6.5V, Io=30A, 500LFM,
9
Ta = 25 C, FIT=10 /MTBF)
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Isolation characteristics
Input to Output
-
-
1500
V
Input to Case
-
-
1500
V
Output to Case
-
-
500
V
10M
-
-
2700
Isolation Resistance
Isolation Capacitance
ohm
-
pF
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
3
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Efficiency Data
98.00%
96.00%
94.00%
92.00%
36 V
90.00%
48 V
88.00%
75 V
86.00%
84.00%
82.00%
80.00%
6A
15A
30A
45A
60A
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
4
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curve
Maximum junction temperature of semiconductors derated to 120 degree C.
AIR FLOW
Bottom view
Derating curve under 48V input
The OTP is achieved by temperature sensor U10 and it is in non-latch mode when the hottest component Q12
reaches 120°C with 200LFM air flow correspondingly. It will restart automatically when the temperature falls
down to 105°C. The protecting point will be varied a little under different conditions (air flow, ambient temperature,
input voltage, load...).
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
5
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Ripple and Noise Waveform
48Vdc input, 6.5Vdc/60A
Note: Ripple and noise at full load, with a 1uF ceramic cap and a 470 uF Tantalum cap at output, Ta=25 deg C.
Transient Response Waveforms
Vout= 6.5V 50%-75% Load Transients
Vout= 6.5V 75%-50% Load Transients
Note: Transient Response at di/dt=1A/uS, with 1uF ceramic cap and 470uF aluminum cap at output,
and Ta=25 deg C.
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
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Startup & Shutdown
Rise time
Vout= 6.5V/60A at [email protected]=25℃
Vout= 6.5V/60A at [email protected]=25℃
Cext = 0uF
Cext = 10000uF
Startup time
Startup from Vin
Ch1: Vo
Ch3: Vin
Startup from on/off
Ch1: Vo
Ch3: on/off
Vout= 6.5V/60A at [email protected]=25℃
Vout= 6.5V/60A at [email protected]=25℃
Cext = 10000uF
Cext = 10000uF
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
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Startup & Shutdown (continued)
Shutdown
Vout= 6.5V/60A at [email protected]=25℃
Cext = 10000uF
Over Current Protection
To provide protection in a fault output overload condition, the module is equipped with internal current-limiting
circuitry and can endure current limiting for a few mili-seconds. If the over current condition persists beyond a few
milliseconds, the module will shut down into hiccup mode and restart once every 400mS. The module operates
normally when the output current goes into specified range. The typical average output current is 4.8A during
hiccup.
output current waveform
Expansion of on time portion
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
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Remote On/Off
Parameter
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Active Low
Active High
Current Sink
Min
-0.3
Typ
-
Max
0.8
Unit
V
2.4
-
18
V
-0.3
-
0.8
V
2.4
-
18
V
0
-
1
mA
Notes
0RQB-Q2T06L. The remote on/off pin
open, Unit off.
0RQB-Q2T065. The remote on/off pin
open, Unit on.
Recommended remote on/off circuit for active low
Vin+
Vin+
On/off
On/off
Vin-
Vin-
Control with open collector/drain circuit
Control with photocoupler circuit
Vin+
Vin+
On/off
On/off
Vin-
Vin-
Vcc
Control with logic circuit
Permanently on
Recommended remote on/off circuit for active high
Vin+
Vin+
On/off
On/off
Vin-
Vin-
Control with open collector/drain circuit
Control with photocoupler circuit
Vin+
Vin+
On/off
On/off
Vin-
Vin-
Vcc
Control with logic circuit
Permanently on
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
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Input Under-voltage Lockout
Input Current
Under-voltage Lockout
Voltage Falling
V1=32V
V2=34V
Voltage Rising
V1
Input Voltage (V)
V2
Safety & EMC
Safety
1. Material flammability
2. TUV Certification
3. UL Certification
UL94V-0
EN60950-1
UL60950-1
EMC
1. Surge
IEC61000-4-5
2. DC-DIP
IEC61000-4-29
3. Conductive EMI
EN55022 class A
Compliance to EN55022 class A (both q.peak and average) with the following inductive and capacitive filter
Setup:
CY12
CY22
CY32
CY42
RY22
RY32
RY42
RY12
T1A
CX1
+Vout
4
3
4
3
+Vin
T2A
CX2
CX3
Test module
CX4
-Vin
-Vout
2
1
2
1
RY11
RY21
RY31
RY41
CY11
CY21
CY31
CY41
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302  Tel 201-432-0463  Fax 201-432-9542  www.belfuse.com
10
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Safety & EMC (continued)
Item
1
2
3
4
5
6
Designator
CX2
CX3
CY31, CY32, CY41, CY42
RY31, RY32, RY41, RY42
T2A
T1A,CX1,CX2,RY11,RY21,RY12
RY22,CY11,CY21,CY12,CY22
Parameter
100uF/100V, AL cap
220uF/100V, AL cap
2*6.8nF/1000V,ceramic
1206,0R,Resistor
0.81mH, common mode
NIL
Positive:
Negative:
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302  Tel 201-432-0463  Fax 201-432-9542  www.belfuse.com
11
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Converter
Jun. 02, 2011
Bel Power
Inc., a subsidiary of Bel Fuse Inc.
Mechanical Outline
Pin Connections
pin#
1
2
3
4
5
function
Vin (+)
Enable
Vin (-)
Vout (-)
Vout (+)
pin size
0.04"
0.04"
0.04"
0.06"
0.06"
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
12
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 6.5 Vdc /60 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Jun. 02, 2011
Revision History
Date
Revision
Changes Detail
Approval
2009-06-16
A
First release
Joe Wei
2009-06-23
B
Delete output trim and remote sense function, update mechanical
drawing
Joe Wei
2009-06-30
C
1. Update input C-L-C filter; 2. Change Max output cap form 5600uF
to 10000uF; 3. Add transient response of di/dt=1A/us; 4. Change
output current from 65A to 60A.
Joe Wei
2009-09-25
D
1.Changge Switching frequency from 250K to 300K, 2.No load Input
current. 3.remote off input current. 4.load regulation. 5.line regulation.
6.regulation over temperature. 7.Output DC current limit. 8.Turn on
time. 9.Rise time. 10.Add efficiency, TD,NR,TR
YP Zhou
2009-10-19
E
1.Add I t Inrush Current Transient; 2.Add Short Circuit Surge
Transient; 3.Add MTBF data; 4.Update Derating curve under normal
input; 5. Add OCP,OVP, OTP, Safety&EMC
YP Zhou
2009-10-23
F
1. Update test condition of MTBF; 2. Update waveform for OVP
YP Zhou
2010-03-02
G
Update mechanical drawing.
JZ Wang
2010-08-09
H
1. Update operating input current, turn on voltage threshold, turn off
voltage threshold and input C-L-C filter in input specifications.
JZ Wang
2
2. Update load regulation, output DC current limit and turn on time in
output specifications.
3. Add Layout.
2011-01-17
I
Update the typical efficiency from 93.5% to 94.5% in general
specifications and update efficiency data, OTP and layout.
JZ Wang
2011-06-02
J
New design.
JZ Wang
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
2011 Bel Fuse Inc. Specifications subject to change without notice. 060211
13
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