0RSB-40U05BG [BEL]
DC-DC Regulated Power Supply Module, 1 Output, 40W, Hybrid, ROHS COMPLIANT, SIXTEENTH BRICK PACKAGE-8;
| 型号： | 0RSB-40U05BG |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 40W, Hybrid, ROHS COMPLIANT, SIXTEENTH BRICK PACKAGE-8 |
| 文件： | 总11页 (文件大小：264K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
0RSB-40U05B RoHS Compliant PRELIMINARY Rev.A
Features
Isolated
Input Under Voltage Lockout
Output Over Voltage Shutdown
OCP/SCP
Fixed Frequency
High Efficiency
High Power Density
Low Cost
Over Temperature Protection
Positive/Negative Remote Sense
Remote On/Off
Output Voltage Trim
Basic Insulation
Through Hole
Class 2, Category 2, Isolated DC/DC Converter (refer to IPC-9592)
UL60950-1 Recognized (UL/cUL) (Pending)
Applications
Networking
Computers and peripherals
Telecommunications
Description
The 0RSB-40U05B is an isolated dc/dc converter that operates from a nominal 24 Vdc or 48 Vdc source. The
unit will provide up to 40 W of output power from an 18-75 Vdc wide input range. The unit is 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 sixteenth brick package.
Part Selection
Output Voltage
Input Voltage
Max. Output
Current
Max. Output
Power
Typical Efficiency
Model Number
Active Low
5.0 Vdc
18 Vdc - 75 Vdc
8 A
40 W
87%
0RSB-40U05B
Note: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R SB – 40 U 05 B
1 2
3
4
5
6 7
1---Through hole
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name, 1/16 Brick
4---Series code
5---Input range (18-75V)
6---Output voltage (5V)
7---Enable, active low, pin length is 0.11 inch
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 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Absolute Maximum Ratings
Unit
V
Parameter
Min
-0.3
-
Typ
Max
80
Notes
Input Voltage (continuous)
Input Transient Voltage
Remote On/Off
-
-
-
-
-
-
100
18
V
100mS 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
Input Voltage
18
48
75
V
Input Current (full load)
-
-
3.5
A
Input Current (no load)
-
-
60
1
120
3
mA
mA
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
With simulated source impedance of
10uH, 5Hz to 20MHz. Use a
100uF/100V electrolytic capacitor with
ESR=1 ohm max, at 200KHz@25°C.
-
-
20
3
50
7
mA
mA
Input Reflected Ripple Current
(rms)
Input Over Voltage Lockout
I2t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
78
-
-
82
V
A2s
V
0.01
17.2
16.8
0.02
17.8
17.4
16.6
16.2
V
Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated.
Output Specifications
Parameter
Min
Typ
Max
Unit
Notes
Output Voltage Set Point
4.925
5.000
5.075
V
Vin=48 V; Io=50% load
Load Regulation
-
-
-
-
±4
±4
±9
±9
mV
mV
mV
mV
Line Regulation
±15
±23
±30
±48
Regulation Over Temperature(-40 C to +85 C)
Total Regulation
0-20MHz BW, with a 1µF
ceramic capacitor and a
10uF Tantalum cap at
output.
Ripple and Noise (pk-pk)
-
70
120
mV
Ripple and Noise (rms)
Output Current Range
-
25
-
50
8
mV
A
0
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 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Specifications (continued)
Parameter
Min
Typ
Max
Unit
Notes
Output DC Current Limit
8.8
10
12.5
A
Hiccup mode, auto
recovery.
Short Circuit Surge Transient
-
0.5
1
A2s
Turn on Time
-
-
25
0
50
5
mS
%
Overshoot at Turn on
Output Capacitance
150
-
2200
uF
Transient Response
Overshoot
Settling Time
Overshoot
-
-
-
-
250
100
250
100
350
200
350
200
mV
mS
mV
mS
25% ~ 50%
Max Load
di/dt=0.1A/us, Vin=48Vdc,
Ta=25°C, with a 1µF
ceramic capacitor and a
10uF Tantalum cap at
output.
Vo=5 V
50% ~ 25%
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=48 V, full load
Efficiency
85
87
-
%
Switching Frequency
-
500
-
KHz
The OTP threshold is set at 125C in
non-latch mode, and the module will
restart automatically when
Over Temperature Protection
Output Voltage Trim Range
-
125
-
C
temperature falls down to 115C.
90
-
-
110
160
%
%
This voltage is achieved by trimming
up output slowly.
Over Voltage Protection
Dimensions
130
1.30 x 0.90 x 0.46
33.02 x 22.86 x 11.69
Inches (L × W × H)
Millimeters (L × W × H)
-
Weight
-
14
-
g
Isolation characteristics
Input to Output
-
10M
-
-
-
1500
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
18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Efficiency Data
90%
85%
80%
75%
70%
65%
60%
55%
50%
18V
24V
48V
75V
0.80
2.00
4.00
6.00
8.00
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 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curve (continued)
Derating curve under normal input
Vin= 48Vdc
Vin= 24Vdc
The OTP is achieved by thermistor R65 and the threshold is set at 120C in non-latch mode; the hottest
component Q5 reaches 125C with 100LFM air flow correspondingly. It will restart automatically when the
temperature falls down to 115C. The protecting point will be varied a little under different conditions (air flow,
ambient temperature, input voltage, load...).
Temperature reference points on top 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
18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Ripple and Noise Waveform
48Vdc input, 5Vdc output
Note: Ripple and noise at full load, with a 1uF ceramic cap and a 10 uF Tantalum cap at output, Ta=25 deg C.
Transient Response Waveforms
Vout= 5V 50%-25% Load Transients
Vout= 5V 25%-50% Load Transients
Note: Transient Response at di/dt=0.1A/uS, Vin=48Vdc, with an External 100uF Tantalum Cap and 1uF Ceramic
Cap, 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 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Startup
Rise time
Start up time
Ch1: Vo
Vin=48V, Vo=5V, 100% Load
Ch2: Vin
Vin=48V, Vo=5V, 100% Load
Note: Start up waveform, tested with an External 220uF Tantalum Cap and 1uF Ceramic Cap, Ta=25 deg C.
Remote On/Off
Parameter
Min
Typ
Max
Unit
Notes
Signal Low (Unit On)
-0.3
-
0.8
V
Remote On/Off pin is open,
the module is off.
Active Low
-
Signal High (Unit Off)
Current Sink
2.4
0
-
-
18
1
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
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
7
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Trim Equations
Equations for calculating the trim resistor are shown below (Unit: kΩ). The Trim Down resistor should be
connected between the Trim pin and Ground pin. The Trim Up resistor should be connected between the Trim
pin and the Vout. Only one of the resistors should be used for any given application.
Vout
511
Module
Module
Trim
GND
Rtrimdown
10.22 k
Rtrimdown
Rtrimup
delta
Vout
Trim
GND
(100 delta)Vo 5.11 626
1.225 delta
Rtrimup
10.22 k
Note:
Vo _ req Vo
delta
100
%
Vo
Vo_req=Desired(trimmed) output voltage[V]
Output voltage Vo=5.002V
2500
2250
2000
1750
1500
1250
1000
750
400
360
320
280
240
200
160
120
80
40
0
500
250
0
4
4.1 4.2 4.3
4.4 4.5 4.6
4.7 4.8 4.9
5
5
5.05 5.1 5.15 5.2 5.25 5.3 5.35 5.4 5.45 5.5
Adjusted output voltageVo,adj(V)
Adjusted output voltageVo,adj (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
18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
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. 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+
(51 ohm) from Vo+ to Sense+ and a resistor RS- (10 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
9
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Mechanical Outline
Pin Connections
Pin
Function
Dia.
0.04’’
0.04’’
0.04’’
0.062’’
0.04’’
0.04’’
0.04’’
0.062’’
1
Vin (+)
2
On/Off
3
Vin (-)
4
Vout (-)
SENSE(-)
Trim
5
6
7
SENSE(+)
Vout (+)
8
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
10
ISOLATED DC/DC CONVERTERS
18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick
May 24, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Revision History
Date
Revision
PA
Changes Detail
Approval
2011-05-24
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.
2011 Bel Fuse Inc. Specifications subject to change without notice. 052411
11
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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