0RQB-T0R120 [BEL]
ISOLATED DC/DC CONVERTERS; 隔离式DC / DC转换器
| 型号： | 0RQB-T0R120 |
| 厂家： | 
BEL FUSE INC. |
| 描述： | ISOLATED DC/DC CONVERTERS |
| 文件： | 总18页 (文件大小：385K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ISOLATED DC/DC CONVERTERS
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
0RQB-T0R12x
Features
RoHS Compliant
Rev.D
•
•
•
•
•
•
Output Over Voltage Shutdown
Over Temperature Protection
•
•
•
•
•
•
•
•
•
Isolated
Fixed Frequency (307 kHz)
High Efficiency
SCP/OCP
High Power Density
Input Under Voltage Lockout
Input Over Voltage Lockout
Low Cost
Remote On/Off
Basic Isolation
Baseplate
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-T0R12x is isolated dc/dc converter that operates from a nominal 24 Vdc source. This unit will provide
up to 240 W output power from a nominal 24 Vdc input. These units are 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 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
18 Vdc - 36 Vdc
20 A
240 W
94.5%
0RQB-T0R120
0RQB-T0R12L
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R QB – T0 R 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, 1/4 Brick
4---Series code
5---Input range 24V wide (18-36V)
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Absolute Maximum Ratings
Unit
V
Parameter
Min
-0.3
-
Typ
Max
40
Notes
Continuous Input Voltage
Input Transient Voltage
Remote On/Off
-
-
-
-
-
-
non-operating
100 mS maximum
50
V
-0.3
-
18
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
18
24
36
V
Input Current (full load)
Input Current (no load)
Remote Off Input Current
-
-
-
-
180
5
15.0
200
10
A
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)
-
-
5
8
mA
Input Reflected Ripple Current
(pk-pk)
I2t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
15
25
mA
-
0.05
16.8
16.5
0.1
A2s
V
16.0
15.5
17.5
17.0
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 25A on system board. Refer to the fuse
manufacture’s datasheet for further information.
Notes: 1. This converter has internal C-L-C (23.5uF) filter.
2. All specifications are typical at 25 °C unless otherwise stated.
Output Specifications
Parameter
Min
Typ
Max
Unit
Notes
Output Voltage Set Point
11.76
12
12.24
V
Vin=24V, Io=50% load
Load Regulation
Line Regulation
-
-
±20
±10
±30
±15
mV
mV
Regulation Over Temperature
(-40deg.C-85deg.C)
-
±100
±200
mV
Vin=24V, full load, 0-20MHz BW, with a
1µF ceramic capacitor and a 10uF
Tantalum cap at output.
Ripple and Noise (pk-pk)
Ripple and Noise (rms)
-
-
100
25
120
40
mV
mV
Ripple and Noise (pk-pk)
under worst case
over all operating input voltage, load
and temperature conditions.
-
-
150
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Specifications (continued)
Parameter
Min
Typ
Max
Unit
Notes
Output Current Range
0
-
20
A
Output DC Current Limit
Short Circuit Surge Transient
Rise time
22
-
26
-
30
5
A
A2s
8
-
12
35
35
3
ms
25
25
0
mS Enable form Vin
Turn on Time
-
-
mS Enable form ON/OFF
Overshoot at Turn on
%
Output Capacitance
0
-
5000
uF
Transient Response
Overshoot
-
-
-
-
300
120
300
120
400
200
400
200
mV
△V50%~75% of
di/dt=0.1A/us, Vin=24Vdc, Ta=25°C,
uS
Max Load
Settling Time
Overshoot
with a 1µF ceramic capacitor and a
10uF Tantalum cap at the output.
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=24V, full load
Efficiency
94
94.5
-
%
Switching Frequency
-
-
307
125
-
kHz
Over Temperature Protection
130
°C
This voltage is achieved by trimming
up output slowly
Over Voltage Protection(Static)
Weight
-
-
14.15
75
14.5
-
V
g
Calculated Per Bell Core SR-332
(Vin=24 V, Vo=12 V, Io=7 A,
Ta = 25°C, FIT=109/MTBF)
FIT
362.8
-
-
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
2.30 x 1.45 x 0.50
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
3900
-
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curve
Derating curve under normal input
Derating curve under worse case input
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
4
ISOLATED DC/DC CONVERTERS
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Ripple and Noise Waveform
24Vdc input, 12Vdc/20A
Note: Ripple and noise at full load, and with a 1uF ceramic cap and a 10 uF Tantalum cap at output and Ta=25
deg C.
Transient Response Waveforms
Vout= 12V 50%-75% Load Transients
Vout= 12V 75%-50% Load Transients
Note: Transient Response at di/dt=0.1A/uS, Vin=24V, with 1uF ceramic cap and 10uF 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
5
ISOLATED DC/DC CONVERTERS
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Startup & Shutdown
Rise time
Vin = 24 V, Full Load
Startup time
Startup from Vin
Ch1: Vo
Startup from on/off
Ch1: Vo
Ch3: Vin
Ch3: on/off
Vin = 24 V, Full Load
Vin = 24 V, Full Load
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Startup & Shutdown (continued)
Shutdown
Vin = 24 V, Full Load
Efficiency Data
96.00%
94.00%
92.00%
90.00%
88.00%
86.00%
84.00%
82.00%
18 V
24 V
36 V
80.00%
2.00
5.00
10.00
15.00
20.00
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
7
ISOLATED DC/DC CONVERTERS
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
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-T0R12L. The remote on/off pin
open, Unit off.
Active Low
Active High
2.4
-0.3
2.4
0
-
-
-
-
18
0.8
18
1
V
V
0RQB-T0R120. The remote on/off pin
open, Unit on.
V
mA
Recommended remote on/off circuit for active low
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
Recommended remote on/off circuit for active high
Vin+
On/off
Vin-
Vin+
On/off
Vin-
Control with open collector/drain circuit
Control with photocoupler circuit
Vin+
Vin+
Vcc
On/off
On/off
Vin-
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
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 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(+)
511
Rtrimdown =
−10.22
[
kΩ
]
Module
Module
Trim
delta
Rtrimdown
Rtrimup
Sense(-)
Sense(+)
Trim
(100+delta)⋅Vo⋅5.11−626
1.225⋅delta
Rtrimup=
−10.22
[kΩ]
Sense(-)
Note:
(
Vo _ req −Vo
)
delta =
×100
[%]
Vo
Vo_req=Desired (trimmed) output voltage [V]
Output voltage Vo=12.036V
2500
2000
1500
1000
500
600
480
360
240
120
0
0
12
1 2.24
12.48
12.7 2
12 .96
13.2
10.8
11.04
11.28
11.52
11.76
12
Vo,adj (V)
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
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 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. The 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.
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
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 over current condition persists beyond a few
milliseconds, the module will shut down into hiccup mode and restart once every 800mS. The module operates
normally when the output current goes into specified range. The typical average output current is 0.02A during
hiccup.
Vin = 24 V, Load in CC Mode
CH1: Output Voltage
Expansion of on time portion
CH3: Output Current
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.
CH1: Output voltage waveform
CH2: Input voltage waveform
CH3: Output Current waveform
Test setup:
Waveform:
R=249K
Vo+
Trim
Vo-
K
R
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Over Temperature Protection
The OTP is achieved by thermistor RT and the threshold is set at 120C in non-latch mode; the hottest component
Q5 reaches 120C with 200LFM air flow correspondingly. It will restart automatically when the temperature falls
down to 100C. 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: Q5
The thermistor on the bottom side: RT
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Input Under-voltage Lockout
Under-voltage Lockout
Voltage Falling
V1=16V
V2=17V
Voltage Rising
Input Voltage (V)
V1
V2
Fundamental Circuit Diagram
1
8
4
3
7
Control
2
Isolated
Feedback
5
6
Choke
Capacitor
Resistor
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
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
IEC61000-4-5
2. DC-DIP
3. Conductive EMI
IEC61000-4-29
EN55022 class A
Compliance to EN55022 class A (both q.peak and average) with the following inductive and capacitive filter
Setup:
L 1
C5
Converter
Vin+
Po sitiv e Input
C1
C2
C3
C 4
Converter
Negative Input
Vin -
C6
L 1
Item
Designator
Parameter
Vendor
Murata
Murata
TDK
Vendor P/N
1
2
3
4
5
6
7
C1
C2
C3
C4
C5
C6
T1
1uF/100V/1210
1uF/100V/1210
0.1uF/100V/1206
GRM32ER72A105KA01L
GRM32ER72A105KA01L
C3216X7R2A104K
UHE2A221MHD6
220μF/2000V, AL CAP
0.1uF/1000V/2220
0.1uF/1000V/2220
0.809mH
Nichicon
Murata
Murata
Pulse
GRM55DR73A104KW01L
GRM55DR73A104KW01L
P0429
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
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
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
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 (-)
Vout (-)
RS-
TRIM
RS+
Vout (+)
0.04"
0.04"
0.04"
0.06"
0.04"
0.04"
0.04"
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
17
ISOLATED DC/DC CONVERTERS
24 Vdc Input 12 Vdc /20 A Output
Sep. 11, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Revision History
Date
Revision
Changes Detail
Approval
XQ Han
XQ Han
XF Jiang
2008-07-22
2009-04-03
2009-10-29
PA
PB
PC
First release
Update mechanical drawing
Update input current, no load input current, remoted off input current,
Input reflected ripple current, turn on voltage threshold, turn off voltage
threshold, line regulation, output ripple and noise, output DC current
limit, turn on time, transient response, efficiency, efficiency curve,
switching frequency, over voltage protection and weight
2010-09-11
D
1. Change fixed frequency from 500kHZ to 307kHZ.
XF Jiang
2. Change max value of remote on/off from 12V to 18V; Add input
transient voltage in absolute maximum ratings.
3. Update no load input current, remote off input current, input
reflected ripple current in input specifications.
4. Change typical value of pipple and noice(pk-pk) from 80mV to
100mV; Update load regulation, line regulation, regulation over
ambient temperature, turn on time, short circuit surge transient and
transient response; Add rise time, output DC current limit, ripple and
noise(pk-pk) under worse case in output specifications.
5. Change min value of efficiency from 93% to 94%; Update switching
frequency, over temperature protection, over voltage protection,
isolation capacitance and FIT; Add input to case isolation voltage,
output to case isolation voltage and isolation resistance in general
specifications.
6. Update TD, NR, TR, efficiency data and output trim equations; Add
startup&shutdown, remote on/off, remote sense, OCP, OVP, OTP,
UVLO, fundamental circuit diagram, safety&EMC and layout.
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. 091110
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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