0RQB-T0T12X [BEL]
ISOLATED DC/DC CONVERTERS; 隔离式DC / DC转换器型号: | 0RQB-T0T12X |
厂家: | BEL FUSE INC. |
描述: | ISOLATED DC/DC CONVERTERS |
文件: | 总18页 (文件大小:496K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
0RQB-T0T12x
Features
RoHS Compliant
Rev.C
Isolated
Output Over-Voltage Shutdown
Output Voltage Trim
High Efficiency
High Power Density
Fixed Frequency (250 kHz)
Low Cost
OCP/SCP
Over Temperature Protection
Remote On/Off
Input Under-Voltage Lockout
Basic Insulation
Positive/Negative Remote Sense
Class 1, Category 2, Isolated DC/DC Converter (refer to IPC-9592)
TUV EN60950-1 Recognized (Pending)
UL60950-1 Recognized (UL/cUL) (Pending)
Applications
Networking
Computers and peripherals
Telecommunications
Description
The 0RQB-T0T12X is an isolated dc/dc converter that operates from a nominal 48 Vdc source. This unit will
provide up to 300 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
Input Voltage
Max. Output Max. Output
Typical
Efficiency
Model Number
Active High
Model Number
Active Low
Voltage
Current
Power
12 Vdc
36 Vdc - 75 Vdc
25 A
300 W
95.5%
0RQB-T0T120
0RQB-T0T12L
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R QB – T0 T 12 0
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 12V
7---Remote sense, active high, change “0” to “L” means active low
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 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Absolute Maximum Ratings
Unit
V
Parameter
Min
-0.3
-
Typ
Max
80
Notes
Continuous Input Voltage
Input Transient Voltage
Remote On/Off
-
-
-
-
-
-
100
18
V
100 mS maximum
-0.3
-
V
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
1500
85
V
-40
-55
C
C
125
Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may
permanently damage the device.
Input Specifications
Parameter
Min
Typ
Max
Unit
Notes
Operating Input Voltage
36
48
75
V
Input Current (full load)
Input Current (no load)
Remote Off Input Current
-
-
-
-
10
-
A
100
10
mA
mA
-
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.
Input Reflected Ripple Current
(rms)
-
-
15
50
-
-
mA
Input Reflected Ripple Current
(pk-pk)
I2t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
mA
-
-
TBD
34.5
33.5
-
35.5
-
A2s
V
32.5
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 13A on system board. Refer to the fuse
manufacture’s datasheet for further information.
Notes: 1. This converter has internal C-L-C (1uF-1.0uH-15.4uF) filter.
2. For recommended external input filter, please refer to Safety section (page 14).
3. All specifications are typical at 25 C unless otherwise stated.
Output Specifications
Parameter
Min
Typ
Max
Unit
Notes
Output Voltage Set Point
11.760
12.004
12.240
V
Vin=48V, Io=50% load
Load Regulation
Line Regulation
-
-
±30
±12
±60
±24
mV
mV
Regulation Over Temperature
(-40deg.C-85deg.C)
-
±60
±100
mV
0-20 MHz BW, with a 1µF ceramic
capacitor and a 10uF Tantalum cap at
output.
Ripple and Noise (pk-pk)
Ripple and Noise (rms)
-
-
150
40
200
80
mV
mV
Ripple and Noise (pk-pk)
under worst case
over all operating input voltage, load
and temperature conditions.
-
-
TBD
mV
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 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Output Specifications (continued)
Parameter
Min
Typ
Max
Unit
Notes
Output Current Range
0
-
25
A
Output DC Current Limit
Short Circuit Surge Transient
Turn on Time
-
-
33
TBD
100
0
-
-
A
A2s
mS
%
-
150
3
Overshoot at Turn on
-
Output Capacitance
0
-
5600
uF
Transient Response
Overshoot
-
-
-
-
-
-
-
-
400
300
400
300
mV
uS
△V50%~75% of
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.
Settling Time
Overshoot
mV
uS
△V75%~50% of
Max Load
Settling Time
Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated.
General Specifications
Parameter
Min
Typ
Max
Unit
Notes
Vin=48V, full load
Efficiency
-
95.5
-
%
Switching Frequency
-
250
-
-
kHz
This voltage is achieved by trimming
up output slowly
Output Voltage Trim Range
90
105
%Vo
Over Temperature Protection
Over Voltage Protection(Static)
Weight
-
-
-
125
14
-
-
-
C
V
60
g
Calculated Per Bell Core SR-332
(Vin=48 V, Vo=12 V, Io=20 A, Ta = 25
C, FIT=109/MTBF)
FIT
TBD
-
-
Dimensions
Inches (L × W × H)
2.30 x 1.45 x 0.50
Millimeters (L × W × H)
58.42 x 36.83 x 12.70
Isolation characteristics
Input to Output
-
-
1500
V
V
Input to Case
-
-
1500
500
Output to Case
-
10M
-
-
-
V
Isolation Resistance
Isolation Capacitance
ohm
pF
2200
-
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 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Efficiency Data
98.00%
96.00%
94.00%
92.00%
90.00%
88.00%
86.00%
84.00%
82.00%
80.00%
36 V
48 V
75 V
2.50
6.25
12.50
18.75
25.00
OUTPUT CURRENT(A)
Thermal Derating Curves
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 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Thermal Derating Curves (continued)
Derating curve under normal input
Derating curve under worse case input
TBD
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 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Ripple and Noise Waveform
.
48 Vdc input, 12Vdc/25A output
Note: Ripple and Noise at full load, Ta=25°C, with a 1µF ceramic capacitor and a 10uF Tantalum cap at the
output.
Transient Response Waveforms
50%-75% Load Transients
75%-50% Load Transients
Note: Transient Response at di/dt=0.1A/uS, Ta=25°C, with 1uF ceramic cap and 10uF aluminum 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
6
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Startup & Shutdown
Rise Time
Test Condition:
48Vdc input, 12Vdc/25A
output, and Ta=25 deg C
Startup time
Startup from Vin
Ch1: Vo
Ch2: Vin
Startup from on/off
Ch1: Vo
Ch2: on/off
Test Condition: 48Vdc input, 12Vdc/25A output
and Ta=25 deg C
Test Condition: 48Vdc input, 12Vdc/25A output
and Ta=25 deg C
Shutdown
Test Condition:
48Vdc input, 12Vdc/25A
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
7
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Remote On/Off
Parameter
Min
Typ
Max
Unit
Notes
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Current Sink
-0.3
-
0.8
V
0RQB-T0T12L. The remote on/off pin
open, Unit off.
Active Low
Active High
2.4
-0.3
2.4
0
-
-
-
-
18
0.8
18
V
V
0RQB-T0T120. The remote on/off pin
open, Unit on.
V
0.75
mA
Recommended remote on/off circuit for active low
Vin+
On/off
Vin-
Vin+
On/off
Vin-
Control with open collector/drain circuit
Control with photocoupler circuit
Vin+
Vin+
On/off
Vin-
Vcc
On/off
Vin-
Control with logic circuit
Permanently on
Recommended remote on/off circuit for active high
Vin+
Vin+
On/off
Vin-
On/off
Vin-
Control with open collector/drain circuit
Control with photocoupler circuit
Vin+
Vin+
Vcc
On/off
Vin-
On/off
Vin-
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
8
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Output Trim Equations
Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected
between the Trim pin and GND pin. The Trim Up resistor should be connected between the Trim pin and the
Vout pin. Only one of the resistors should be used for any given application.
Minimum trim down voltage is 10.8V
Maximum trim up voltage is 12.6V.
The total voltage increased by trim and remote sense should not exceed 5% of the nominal output voltage.
Vout
Vo _ req
Rtrimdown
1[k]
Vo Vo _ req
Module
Module
Trim
GND
Rtrimdown
Rtrimup
Vout
Trim
GND
Vo _ req
Rtrimup
1
k
Vo Vo _ req
Note:
Vo _ req Vo
delta
100
%
Vo
Vo_req=Desired (trimmed) output voltage [V]
Output voltage Vo=12.006 V
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
400
360
320
280
240
200
160
120
80
40
0
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)
9.8 10.02 10.24 10.46 10.68 10.9 11.12 11.34 11.56 11.78 12
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
9
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
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 5% 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 5%
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+
(30.1 ohm) from Vo+ to Sense+ and a resistor RS- (30.1 ohm)) from Vo- to Sense- inside of this module.
Vo+
Sense+
Load
Sense-
Vo-
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.
Vo+
Sense+
Load
Sense-
Vo-
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 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
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 overcurrent condition persists beyond a few
milliseconds, the module will shut down into hiccup mode and restart once every 344mS. The module operates
normally when the output current goes into specified range. The typical average output current is 0.3A during
hiccup.
CH1: Output voltage waveform
CH2: output current waveform and 1A/10mV
Test at: 48Vdc input, over current output and Ta=25 deg C
Expansion of on time portion of above figure
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 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Over Voltage Protection
The output overvoltage 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 latch off mode. The overvoltage latch can be reset by either cycling the input power or toggling the
on/off signal for one second at least.
Note: Due to maximum duty cycle limt, output voltage can not be trimed up to OVP set point in low line
input.
Test setup:
Vo+
K
Trim
R
Vo-
R=10k ohm
CH1: Input voltage waveform
CH2: Output voltage waveform
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 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Over Temperature Protection
The OTP is achieved by thermistor R25 and the threshold is set at 120C in non-latch mode; the hottest
component Q13 reaches 125C 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...).
The hottest component on the top side: Q13
The thermistor on the bottom side: R25
Input Under-voltage Lockout
Under-voltage Lockout
Voltage Falling
V1=33.5V
V2=34.5V
Voltage Rising
Input Voltage (V)
V1
V2
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
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Safety & EMC
Safety
1. Material flammability UL94V-0
2. TUV Certification
3. UL Certification
EN60950-1
UL60950-1
EMC
1. Surge
2. DC-DIP
3. Conductive EMI
IEC61000-4-5
IEC61000-4-29
EN55022 class B
Compliance to EN55022 class B (both q.peak and average) with the following inductive and capacitive filter
C5
L1
L2
+
-
+
-
C3
C6
C4
C1
C2
R
Module
Item
Designator
Parameter
Vendor
Murata
Vendor P/N
1
2
3
4
5
6
7
8
C1
C2
C3
C4
C5
C6
L1
2.2uF/100V,ceramic
2.2uF/100V,ceramic
2.2uF/100V,ceramic
270uF/100V,AL Cap
2200pF/2000V,ceramic
2200pF/2000V,ceramic
GRF32ER72A225KA11L
GRF32ER72A225KA11L
GRF32ER72A225KA11L
UHE2A271MHD
Murata
Murata
Nichicon
Johanson
Johanson
VAC
202R29W222KV4E
202R29W222KV4E
0.809mH, common mode
0.809mH, common mode
T60004-L2025-W622
T60004-L2025-W622
L2
VAC
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
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Safety & EMC (continued)
Positive
Negative
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
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
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
16
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Mechanical Outline
Pin Connections
pin# function pin size
1
2
3
4
5
6
7
8
Vin (+)
On/Off
Vin (-)
Vo (-)
Sense (-)
Trim
0.04"
0.04"
0.04"
0.06"
0.04"
0.04"
0.04"
0.06"
Sense (+)
Vo (+)
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
36 Vdc - 75 Vdc Input 12 Vdc /25 A Output, 1/4 Brick
March 27, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Labeling Information
Top View
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications and D.C. (Date Code) pictured on labels,
may change depending on the date manufactured.
Packing Instruction
TBD
Revision History
Date
Version
Changes Detail
Approval
2007-5-28
2007-7-18
2009-3-27
A
B
C
First release
Update efficiency data curve and TD curve
1. Change to new format, include adding application, part number
explaining, remote sense, OCP, OVP, OTP, UVLO, startup&shutdown,
safety&EMC and so on. 2. Add input transient voltage, input C-L-C filter,
recommended input fast-acting fuse on system board. 3. Update trim
equations.
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
2009 Bel Fuse Inc. Specifications subject to change without notice. 032709
18
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
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
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