0REB-80T120 [BEL]
ISOLATED DC/DC CONVERTERS; 隔离式DC / DC转换器
| 型号： | 0REB-80T120 |
| 厂家： | 
BEL FUSE INC. |
| 描述： | ISOLATED DC/DC CONVERTERS |
| 文件： | 总17页 (文件大小：270K) |
| 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/6.5 A Output
Nov. 15, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
0REB-80T12x RoHS Compliant PRELIMINARY Rev.B
Features
•
•
•
•
•
•
•
Isolated
•
•
•
•
•
Remote On/Off Logic (Optional)
Input Under Voltage Protection
Output Over Voltage Protection
OCP/SCP
High Efficiency
Fixed Frequency (400 KHz)
High Power Density
Low Cost
Over Temperature Protection
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 0REB-80T12x is an isolated dc/dc converter that operates from a nominal 48 Vdc source. This converter
provides up to 80 W of output power. Features include remote on/off, short circuit protection, over current
protection, over-temperature protection, output over-voltage protection, input under-voltage protection. These
converters are provided in an industry standard eighth brick package.
Part Selection
Output Voltage
Input Voltage
Max. Output Max. Output
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
Current
Power
12 Vdc
36 Vdc - 75 Vdc
6.5 A
80 W
93%
0REB-80T12L
0REB-80T120
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation
0 R EB – 80 T 12 x
1 2
3
4
5
6 7
1---Through hole mount
2---RoHS 6, change “R” to “7” means RoHS 5
3---Series name
4---Series code
5---Input range (36-75V)
6---Output voltage (12V)
7---Enable, “0” means active high, and “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/6.5 A Output
Nov. 15, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Absolute Maximum Ratings
Unit
Parameter
Min
Typ
Max
Notes
Continuous non-operating Input
Voltage
-0.3
-
75
V
Input Transient Voltage
Remote On/Off
-
-
-
-
-
-
100
18
-
V
V
100mS maximum
-0.3
1500
-40
I/O isolation voltage
Ambient Temperature
Storage Temperature
V
85
125
°C
°C
-55
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
-
-
-
-
2.4
100
15
A
50
10
mA
mA
Input Reflected Ripple Current
(rms)
With simulated source impedance of
10uH, 5Hz to 20MHz. Use a
100uF/100V electrolytic capacitor with
ESR=1 ohm max, at 200KHz@25°C.
-
-
2
4
mA
Input Reflected Ripple Current
(pk-pk)
10
20
mA
I2t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
-
-
1
A2s
V
33
30
34
31
35
33
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 3A on system board. Refer to the fuse
manufacture’s datasheet for further information.
Notes: 1. This converter has internal C-L-C (0.47uF-2.2uH-3.2uF) 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=48V, Io=50% load
Load Regulation
Line Regulation
-
-
0.1
0.1
0.2
0.2
% Vo,set
% Vo,set
Vin=48V, Io=0~100% load
Vin=36~75V,Io=100% load
Regulation Over Temperature
(-40deg.C-85deg.C)
-
-
-
0.02
50
% Vo,set/C
mV
Vin=48V, Io=100%load at 25°C
ambient, 0-20MHz BW, with a
1µF ceramic capacitor, 10uF
Tantalum cap and a 220uF
electrolytic cap at output.
over all operating input voltage,
load and ambient temperature
condition
Ripple and Noise (pk-pk)
Ripple and Noise (rms)
30
-
-
5
-
10
60
mV
mV
Ripple and Noise (pk-pk)
under worst case
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/6.5 A Output
Nov. 15, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Output Specifications (continued)
Parameter
Min
Typ
Max
Unit
Notes
Output Current Range
0
-
6.5
A
Output DC Current Limit
Short Circuit Surge Transient
Rise time
7
7.8
-
8.8
0.05
15
A
-
A2s
mS
mS
mS
%
-
-
-
25
25
0
30
Enable form Vin
Turn on Time
-
-
30
Enable form ON/OFF
Overshoot at Turn on
3
Output Capacitance
220
-
5000
uF
Transient Response
△V
50%~75%
of Max Load
Overshoot
Settling Time
Overshoot
-
200
350
200
350
250
450
250
450
mV
uS
di/dt=0.1A/us, Vin=48Vdc, Ta=25°C,
with a 1µF ceramic capacitor, 10uF
Tantalum cap and a 220uF
-
-
-
Vo=
12 V
△V
75%~50%
of Max Load
mV
uS
electrolytic cap at output.
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
90
93
-
%
Switching Frequency
-
80
-
400
-
-
kHz
%
Output Voltage Trim Range
Over Temperature Protection
110
120
110
℃
This voltage is achieved by trimming
up output slowly.
Over Voltage Protection(Static)
13.8
-
15
V
The transient over voltage is achieved
by connecting the Trim pin to Vout+
pin through a 100K resistor.
Over Voltage Protection (Dynamic)
Weight
-
-
-
18
-
V
g
18
Calculated Per Bell Core SR-332
(Vin=48V, Vo=12V, Io=5A, Ta = 25 °C,
FIT=109/MTBF)
FIT
TBD
-
-
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
2.30 x 0.90 x 0.40
58.42 x 22.86 x 10.20
Isolation characteristics
Input to Output
1500
-
-
-
-
-
V
Isolation Resistance
Isolation Capacitance
10M
-
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
36 Vdc - 75 Vdc Input, 12 Vdc/6.5 A Output
Nov. 15, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Efficiency Data
94%
92%
90%
88%
86%
84%
82%
80%
36V
48V
75
1.625A
3.25A
4.875A
6.5A
OUTPUT CURRENT (Amp)
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/6.5 A Output
Nov. 15, 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
Active Low
Active High
The remote on/off pin open, Unit off.
1.8
-0.3
1.8
0
-
-
-
-
18
0.8
18
1
V
V
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
On/off
Vin-
Vin-
Control with logic circuit
Permanently on
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+
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
5
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input, 12 Vdc/6.5 A Output
Nov. 15, 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 9.6V
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.
Vout
+sense
511
Trim
Rtrimdown =
−10.22
[kΩ
]
Rtrim_down
Rtrim_up
delta
-sense
GND
Vout
+sense
(100+ delta)⋅Vo ⋅5.11− 626
1.225⋅ delta
Rtrimup =
−10.22[kΩ
]
Trim
-sense
GND
Note:
(
Vo _ req −Vo
)
delta =
×100
[%]
Vo
Vo_req=Desired (trimmed) output voltage [V]
Output voltage Vo=12.000 V
400
360
320
280
240
200
160
120
80
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
40
0
0
9.6 9.84 10.08 10.32 10.56 10.8 11.04 11.28 11.52 11.76 12
Adjusted output voltageVo,adj (V)
12 12.12 12.24 12.36 12.48 12.6 12.72 12.84 12.96 13.08 13.2
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
6
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input, 12 Vdc/6.5 A Output
Nov. 15, 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. 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+
(40.2 ohm) from Vo+ to Sense+ and a resistor RS- (40.2 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
7
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input, 12 Vdc/6.5 A Output
Nov. 15, 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 300mS. The module operates
normally when the output current goes into specified range. The typical average output current is 1.75A 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 300mS. The module operates normally when the fault is cleared.
Test setup:
Waveform: CH1: Output voltage waveform
R=100K
Vo+
K
Trim
Vo-
R
Sense+
K
Trim
R
Sense-
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/6.5 A Output
Nov. 15, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Over Temperature Protection
The OTP is achieved by thermistor R67 and the threshold is set at 110C in non-latch mode; the hottest
component Q3 reaches 112C with 100LFM air flow correspondingly. It will restart automatically when the
temperature falls down to 105C. The protecting point will be varied a little under different conditions (air flow,
ambient temperature, input voltage, load...).
Input Under-voltage Lockout
Under-voltage Lockout
Voltage Falling
V1=31V
V2=34V
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
9
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input, 12 Vdc/6.5 A Output
Nov. 15, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Ripple and Noise Waveform
48Vdc input, 12Vdc/6.5A output
Note: Ripple and noise at full load, with a 1uF ceramic cap and a 10 uF Tantalum cap and a 220uF electrolytic
cap at output, Ta=25 deg C.
Transient Response Waveforms
Vout= 12V 50%-75% Load Transients
Vout= 12V 75%-50% Load Transients
Note: Transient Response at Vin=48V, di/dt=0.1A/uS, with a 1uF ceramic cap and a 10uF aluminum cap and a
220uF electrolytic cap at the output.
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/6.5 A Output
Nov. 15, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Startup & Shutdown
Rise Time
Vin=48V, Vo=12V, Io=6.5A
Startup time
Startup from on/off
Ch1: Vo
Ch3: on/off
Startup from Vin
Ch1: Vo
Ch3: Vin
Vin=48V, Vo=12V, Io=6.5A
Vin=48V, Vo=12V, Io=6.5A
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/6.5 A Output
Nov. 15, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Startup & Shutdown (continued)
Shutdown
Vin=48V, Vo=12V, Io=6.5A
Thermal Derating Curve
Maximum junction temperature of semiconductors derated to 120 degree C.
Derating curve under normal input
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/6.5 A Output
Nov. 15, 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
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/6.5 A Output
Nov. 15, 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:
C4
+Vin
-Vin
T1
T1
Conv.positive
input
C1
C2
C3
Conv.negative
input
C5
Item
Designator
Parameter
1uF/100V,ceramic
Vendor
Murata
Vendor P/N
GRM32ER72A105KA01L
C3216X7R2A104K
UVZ2A101MPD
1
2
3
4
5
6
C1
C2
C3
C4
C5
T1
0.1uF/100V, ceramic
100uF/100V, AL cap
22nF/1000V,ceramic
22nF/1000V,ceramic
1.3mH, common mode
TDK
Nichicon
Johanson
Johanson
Pulse
631S41W223KV4E
631S41W223KV4E
P0402NL
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/6.5 A Output
Nov. 15, 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
15
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input, 12 Vdc/6.5 A Output
Nov. 15, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Mechanical Outline
Pin
1
Function
Vin(+)
RC
Dia.
0.04’’
0.04’’
0.04’’
0.062’’
0.04’’
0.04’’
0.04’’
0.062’’
2
3
Vin(-)
Vout(-)
RS-
4
5
6
TRIM
RS+
7
8
Vout(+)
Note: 1. Pin 5 must be connected to Vout(-)
2. Pin 7 must be connected to Vout(+)
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 260ºC 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
16
ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input, 12 Vdc/6.5 A Output
Nov. 15, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Revision History
Date
Revision
Changes Detail
Approval
2010-09-11
PA
First release
XF Jiang
1. Updated Turn-on/off voltage threshold in Input specifications.
2. Updated Load regulation, Line regulation, Output ripple and noise,
Output DC current limit, Turn on time, Output capacitance, Transient
response in Output specifications
2010-11-15
PB
XF Jiang
3. Updated Remote on/off.
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. 111510
17
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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