BEL 0RQB

ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
0RQB-C5U12x
RoHS Compliant
Rev.D
•
Isolated
•
Over Temperature Protection
•
Fixed Frequency (260 kHz)
•
SCP/OCP
•
High Efficiency
•
Low Cost
•
High Power Density
•
Remote On/Off
•
Input Under-Voltage Lockout
•
Basic Isolation
•
Input Over-Voltage Lockout
•
Positive/Negative Remote Sense
•
Output Over-Voltage Shutdown
•
Output Voltage Trim
•
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-C5U12x is isolated dc/dc converter that operates from a wide input range (18 Vdc - 75 Vdc) and can
cover both 24 Vdc and 48 Vdc input range. This unit will provide up to 144 W of output power. This unit is
designed to be highly efficient and low cost. Features include remote on/off, over current protection, over voltage
shut down, over temperature protection and under voltage lockout. This converter is provided in an industry
standard 1/4 brick package.
Part Selection
Output Voltage
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active High
Model Number
Active Low
12 Vdc
18 Vdc - 75Vdc
12 A
144 W
93%
0RQB-C5U120
0RQB-C5U12L
Note: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R QB – C5 U 12 x
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 (18-75V)
6---Output voltage (12V)
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
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Absolute Maximum Ratings
Parameter
Continuous Input Voltage
Input Transient Voltage
Remote On/Off
I/O Isolation Voltage
Min
Typ
Max
Unit
-0.3
-
80
V
-
-
100
V
-0.3
-
18
V
-
-
1500
V
Ambient Temperature
-40
-
85
°C
Storage Temperature
-55
-
125
°C
Notes
100mS maximum
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
18
Typ
24/48
Max
75
Unit
V
-
9.2
-
A
Vin=18 V
-
2.2
-
A
Vin=75 V
Input Current (no load)
-
100
130
mA
Remote Off Input Current
-
30
45
mA
Input Reflected Ripple Current
(pk-pk)
-
40
60
mA
Input Reflected Ripple Current
(rms)
-
10
15
mA
I t Inrush Current Transient
-
-
0.5
As
Turn-on Voltage Threshold
16.5
17.0
17.5
V
Turn-off Voltage Threshold
15.5
16
16.5
V
Input Over Voltage Lockout
76
78
80
V
Input Current (full load)
2
Notes
With simulated source impedance of
10 uH, 5 Hz to 20 MHz; Use a
1uF/100V ceramic capacitor and a
100uF/100V electrolytic capacitor with
ESR=1 ohm max, at [email protected]°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 18A on system board. Refer to the fuse
manufacture’s datasheet for further information.
Notes: 1. This converter has internal C-L-C (0.47uF-0.47uH-8.8uF) filter.
2. All specifications are typical at 25 °C unless otherwise stated.
Output Specifications
Parameter
Output Voltage Set Point
Min
11.76
Typ
12.0
Max
12.24
Unit
V
Load Regulation
-
±12
±24
mV
Line Regulation
-
±12
±24
mV
Regulation Over Temperature
(-40deg.C-85deg.C)
-
±60
±100
mV
Ripple and Noise (pk-pk)
-
100
160
mV
Ripple and Noise (rms)
-
30
50
mV
Notes
Vin=48V, Io=50% load
0 - 20 MHz BW, with 1 uF ceramic
load capacitor and a 10 uF tantalum
capacitor at output
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
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Output Specifications (continued)
Parameter
Output Ripple and Noise(pk-pk)
under worst case
Min
Typ
Max
Unit
Notes
over all operating input voltage, load
and ambient temperature condition
-
-
180
mV
Output Current Range
0
-
12
A
Output DC Current Limit
15
-
20
A
Short Circuit Surge Transient
-
3
5
As
Rise Time
5
-
10
mS
-
50
70
mS
Enable from Vin
-
50
70
mS
Enable from on/off
Overshoot at Turn on
-
0
3
%
Output Capacitance
0
-
680
uF
2
Turn on Time
Transient Response
△V25%~50% of
Overshoot
-
400
600
mV
Max Load
Settling Time
-
200
300
uS
△V50%~25% of
Overshoot
-
400
600
mV
Max Load
Settling Time
-
200
300
uS
di/dt=0.1A/us, Vin=48 Vdc, with a 1 µF
ceramic capacitor and a 10 uF
Tantalum capacitor at output,
Ta=25 °C.
Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated.
General Specifications
Parameter
Min
91
Typ
93
Max
-
Unit
%
91
93
-
%
240
260
280
kHz
Over Temperature Protection
-
125
-
°C
Over Voltage Protection(Static)
-
14.5
-
V
Weight
-
48
-
g
Efficiency
Switching Frequency
FIT
387
-
2.30 x 1.45 x 0.50
58.42 x 36.83 x 12.69
-
Notes
Vin=24V, full load
Vin=48V, full load
This voltage is achieved by trimming
up output slowly
Calculated Per Bell Core SR-332
(Vin=48V, Vo=12V, Io=9.6A, Ta = 25
9
°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
-
-
1500
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
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Efficiency Data
Efficiency Curve
1
0.9
0.8
Efficiency
0.7
18V
24V
48V
75V
0.6
0.5
0.4
0.3
0.2
0.1
0
0
1.2
3
6
9
12
Output Current (A)
Thermal Derating Curve
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
4
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Thermal Derating Curve (continued)
Derating curve under normal input
Vin=24V
Vin=48V
Derating curve under worse case input
Vin=75V
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
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Aug. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curve (continued)
Temperature reference points on top side
Temperature reference points on bottom side
Ripple and Noise Waveform
24 Vdc input, 12 Vdc/12 A output
48 Vdc input, 12 Vdc/12 A output
Note: Ripple and noise at full load, 0-20MHz BW, with a 1uF ceramic capacitor and a 10 uF tantalum capacitor at
the 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
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Transients Responses Waveforms
Vin=24V
Vin=48V
Vout= 12V 25%-50% Load Transients at Ta=25℃
Vin=24V
Vin=48V
Vout= 12V 50%-25% Load Transients at Ta=25℃
Note: Transients response at di/dt=0.1 A/us, with a 1 µF ceramic capacitor and a 10 uF tantalum capacitor at the
output, 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
7
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Aug. 19, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Startup & Shutdown
Rise time
Vout= 12V/12A at [email protected]=25℃
Startup time
Startup from Vin
Ch1: Vo
Ch3: Vin
Test Condition: 48Vin, 12A Load
Startup from on/off
Ch1: Vo
Ch3: on/off
Test Condition: 48Vin, 12A Load
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
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Startup & Shutdown (continued)
Shutdown
Test Condition: 48Vin,12A Load
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-C5U12L. The remote on/off pin
open, Unit off.
0RQB-C5U120. 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
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
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Remote On/Off(continued)
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
Vcc
Vin-
Vin-
Control with logic circuit
Permanently on
Layout
Layout of components on top side
Layout of components 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
10
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 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.
Minimum trim down voltage is 10.8V
Maximum trim up voltage is 13.2V.
The total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage.
Sense(+)
Rtrimdown =
Rtrimup=
511
−10.22[kΩ]
delta
Module
Trim
Rtrimdown
Sense(-)
(100+ delta) ⋅Vo⋅ 5.11− 626
−10.22[kΩ]
1.225⋅ delta
Sense(+)
Rtrimup
Module
Trim
Sense(-)
Note:
delta =
(Vo _ req − Vo) × 100[%]
Vo
400
5000
360
4500
Trim resi stor value,Rtrim_up(KOhm)
Trim resi stor value Rtrim_down(KOhm)
Vo_req=Desired (trimmed) output voltage [V]
Output voltage Vo=12.000 V
320
280
240
200
160
120
80
40
0
4000
3500
3000
2500
2000
1500
1000
500
9.8
10.02 10.24 10.46 10.68 10.9 11.12 11.34 11.56 11.78
Adjusted output voltage Vo,adj (V)
12
0
12
12.12 12.24 12.36 12.48 12.6 12.72 12.84 12.96 13.08 13.2
Adjusted output voltage Vo,adj(V)
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
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Remote Sense
This module has remote sense compensation feature. It can minimize the effects of resistance between
module’s output and load in system layout and facilitates accurate voltage regulation at load terminals or
other selected point.
1. The remote sense lines carries very little current and hence do not require a large cross-sectional area.
2. This module compensates for a maximum drop of 10% of the nominal output voltage.
3. If the unit is already trimmed up, the available remote sense compensation range should be
correspondingly reduced. The total voltage increased by trim and remote sense should not exceed 10%
of the nominal output voltage.
4. When using remote sense compensation, all the resistance, parasitic inductance and capacitance of the
system are incorporated within the feedback loop of this module. It can make an effect on the module's
compensation, affecting the stability and dynamic response. A 0.1uF ceramic capacitor can be
connected at the point of load to de-couple noise on the sense wires.
5. Recommend the connection of remote sense compensation as below figure. There are a resistor RS+
(100 ohm) from Vo+ to Sense+ and a resistor RS- (51 ohm)) from Vo- to Sense- inside of this module.
RS+
Vo+
Sense+
Load
RS-
Sense-
V o-
6. If not using remote sense compensation, please connect sense directly to output at module's pin, that is,
connect sense+ to Vo+ and sense- to Vo- at module's pin, the shorter the better. See below figure.
RS+
V o+
Sense+
Load
RS-
Sense-
Vo-
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
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
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 0.5A during
hiccup.
Vin=48V
Expansion of on time portion
Over Voltage Protection
The output over voltage protection consists of circuitry that monitors the voltage on the output terminals. If the
voltage on the output terminals exceeds the over voltage protection threshold, the module will shutdown into
hiccup mode and restart once every 800mS. The module operates normally when the fault is cleared.
Test setup:
Waveform:
R=10K
Vo+
K
Trim
R
Vo-
Sense+
K
Trim
R
48Vin,12A Load
Sense-
CH1: Output voltage waveform
CH2: Output Current waveform
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
13
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Over Temperature Protection
The OTP is achieved by thermistor RT1 and the threshold is set at 120C in non-latch mode; the hottest
component Q13 reaches 130C with 100LFM air flow correspondingly. It will restart automatically when the
temperature falls down to 110C. The protecting point will be varied a little under different conditions (air flow,
ambient temperature, input voltage, load...).
Input Under-voltage Lockout
Input Current
Under-voltage Lockout
Voltage Falling
V1=16V
V2=17V
Voltage Rising
V1
V2
Input Voltage (V)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
14
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
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
Item
Designator
Parameter
Vendor
Vendor P/N
1
CX1,CX2
2.2uF/100V,ceramic
Murata
GRF32ER72A225KA11L
2
C3X
100uF/100V, AL cap
Nichicon
UVZ2A101MPD
3
RY21,RY22
0R,0805
SEI
4
CY21,CY22
6800pF/2000V,ceramic
Johanson
5
RY31,RY32
51R,0805
SEI
6
CY31,CY32
1500pF/2000V,ceramic
Johanson
7
RY41,RY42
0R,0805
SEI
8
CY41,CY42
1500pF/2000V,ceramic
Johanson
9
T1A
1.0mH, common mode
10
T2A
2.2mH,common mode
202R29W682KV4E
302R29W152KV4E
302R29W152KV4E
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
15
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Safety & EMC (continued)
Positive
Negative
Fundamental Circuit Diagram
1
8
4
Driver
Driver
7
3
Controller
2
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
16
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Mechanical Outline
Pin Connections
Pin
Function
Pin Size
1
2
3
4
5
6
7
8
Vin(+)
On/Off
Vin(-)
Vo(-)
Sense(-)
TRIM
Sense(+)
Vo(+)
0.040’’
0.040’’
0.040’’
0.060’’
0.040’’
0.040’’
0.040’’
0.060’’
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
17
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 12 Vdc /17 A Output, 1/4 Brick
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Aug. 19, 2010
Revision History
Date
Revision
2008-06-24
PA
2009-03-10
Changes Detail
Approval
First release
JZ Wang
B
Updated MD, TR, NR and Efficiency, add TD
JZ Wang
2009-12-29
C
Update outline and MD
JZ Wang
2010-08-19
D
Add Shutup&Shutdown, Remote on/off, Layout, Remote sense, OCP,
OVP, OTP, UVLO, Safety&EMC and Fundamental circuit diagram.
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.
©2010 Bel Fuse Inc. Specifications subject to change without notice. 081910
18
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