BEL 0RQB

ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
0RQB-C5T14x
RoHS Compliant
Preliminary
•
Isolated
•
Over Temperature Protection
•
Fixed Frequency (250 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 2, Category 2, Isolated DC/DC Converter (refer to IPC-9592)
Applications
•
Networking
•
Computers and peripherals
•
Telecommunications
Description
The 0RQB-C5T14x is an isolated DC/DC converter that operate from a nominal 48V source. This unit will
provide up to 140W of output power from a nominal 48V input. This unit is designed to be highly efficient and low
cost . Features include remote on/off, over current protection and overvoltage protection. The converter is
provided in an industry standard quarter brick package.
Part Selection
Output Voltage
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active High
Model Number
Active Low
14 Vdc
36 Vdc - 75Vdc
10 A
140 W
93.5%
0RQB-C5T140
0RQB-C5T14L
Note: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R QB – C5 T 14 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 (36-75V)
6---Output voltage (14V)
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
36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
Absolute Maximum Ratings
Parameter
Continuous non-operating 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
36
Typ
48
Max
75
Unit
V
Input Current (full load)
-
-
5.0
A
Input Current (no load)
-
80
120
mA
Remote Off Input Current
-
10
20
mA
Input Reflected Ripple Current
(pk-pk)
-
35
50
mA
Input Reflected Ripple Current
(rms)
-
10
15
mA
-
-
1
As
34.5
35.5
V
2
I t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
32.5
33.5
Notes
Vin=36 V
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
V
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 7A 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
Min
Typ
Max
Unit
13.72
14
14.28
V
Load Regulation
-
±14
±28
mV
Line Regulation
-
±14
±28
mV
Regulation Over Temperature
(-40deg.C-85deg.C)
-
±70
±140
mV
Ripple and Noise (pk-pk)
-
120
180
mV
Ripple and Noise (rms)
-
25
50
mV
Output Voltage Set Point
Notes
Vin=48V, Io=50% load at 25C
ambient.
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
36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
Output Specifications (continued)
Parameter
Output Ripple and Noise(pk-pk)
under worst case
Output Current Range
Output DC Current Limit
Min
Typ
Max
Unit
220
mV
10
A
14
A
5
As
12
mS
30
60
mS
Enable from Vin
25
50
mS
Enable from on/off
0
3
%
680
uF
0
10.5
12
Short Circuit Surge Transient
6
Rise Time
Turn on Time
Overshoot at Turn on
0
Output Capacitance
Notes
over all operating input voltage, load
and ambient temperature condition
2
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
91.5
Typ
93.5
Max
-
Unit
%
Switching Frequency
-
250
-
kHz
Over Temperature Protection
-
125
-
°C
Over Voltage Protection(Static)
-
17
-
V
Weight
-
48
-
g
Efficiency
FIT
TBD
-
2.30 x 1.45 x 0.50
58.42 x 36.83 x 12.69
-
Notes
Vin=48V, full load, Ta=25°C
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
-
-
ohm
-
3900
-
pF
Isolation Resistance
Isolation Capacitance
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 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
Efficiency Data
95.00%
90.00%
EFFICIENCY
85.00%
36 V
80.00%
48 V
75V
75.00%
70.00%
1A
2.5A
5A
7.5A
10A
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
36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
Thermal Derating Curve (continued)
Derating curve under 48V input
Vin=24V
Ripple and Noise Waveform
Note: Ripple and noise at full load, 48Vdc input, 14Vdc/10A output and Ta=25 deg C, and with a 1uF ceramic
cap and a 10 uF Tantalum cap at output. .
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 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
Transients Responses Waveforms
Vout= 14V 25%-50% Load Transients at [email protected]=25℃
Vout= 14V 50%-25% Load Transients at [email protected]=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
6
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
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-C5T14L. The remote on/off pin
open, Unit off.
0RQB-C5T140. 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
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-
Control with logic circuit
Vin-
Permanently on
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 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
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 12.6V
Maximum trim up voltage is 15.4V.
The total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage.
Sense(+)
Rtrimdown =
511
−10.22[kΩ]
delta
(100+ delta) ⋅Vo⋅ 5.11− 626
−10.22[kΩ]
Rtrimup=
1.225⋅ delta
Module
Trim
Rtrimdown
Sense(-)
Sense(+)
Rtrimup
Module
Trim
Sense(-)
Note:
delta =
(Vo _ req − Vo) × 100[%]
Vo
Vo_req=Desired (trimmed) output voltage [V]
Output voltage Vo=14.000 V
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 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
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
9
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
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,10A Load
Sense-
CH1: Output voltage waveform
CH2: Input voltage waveform
CH3: 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
10
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
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=33.5V
V2=34.5V
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
11
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
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
12
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 14 Vdc /10 A Output, 1/4 Brick Converter
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Oct. 07, 2011
Revision History
Date
Revision
2011-10-7
PA
Changes Detail
Approval
First release
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.100711
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