0RHB-D3T28L [BEL]
DC-DC Regulated Power Supply Module;
| 型号： | 0RHB-D3T28L |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module |
| 文件： | 总8页 (文件大小：223K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ISOLATED DC/DC CONVERTERS
48 Vdc Input
28 Vdc/7 A Output
0RHB-D3T28x
RoHS Compliant
Rev.B
•
•
•
•
•
•
•
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Isolated
•
•
•
•
•
•
OCP/SCP
High Efficiency
Over Temperature Protection
Basic Insulation
High Power Density
Low Cost
Remote On/Off
Input Under Voltage Lockout
Output Over-Voltage Shut Down
Fixed Frequency (300 kHz)
Positive/Negative Remote Sense
Output Voltage Trim
UL60950-1 Recognized
EN60950-1 Recognized
Description
The 0RHB-D3T28x are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will
provide up to 230 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, input under voltage lockout. This converter is
provided in an industry standard half- brick package.
Part Selection
Output
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active High
Model Number
Active Low
Voltage
28 Vdc
36 Vdc - 75 Vdc
7 A
230 W
91%
0RHB-D3T280
0RHB-D3T28L
Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Notes
100 V for 100 mSec input transient
capability.
Input Voltage (continuous)
-0.3 V
-
80 V
Remote On/Off
-0.3 V
-
-
-
-
35 V
1500 V
85 °C
I/O Isolation Voltage
Ambient Temperature
-40 °C
Storage Temperature
-
-55 °C
125 °C
Input Specifications
Parameter
Input Voltage
Min
36V
Typ
48 V
-
Max
75 V
Notes
Input Current (full load)
Input Current (no load)
Remote Off Input Current
-
-
-
7.5 A
50 mA
30 mA
30 mA
20 mA
Tested with simulated source impedance
of 15 uH, 5 Hz to 20 MHz; Use 2*220
uF/100 V electrolytic capacitor with ESR=1
ohm max, at 200 KHz@25°C.
Input Reflected Ripple Current (pk-pk)
-
40 mA
-
Input Reflected Ripple Current (rms)
I2t Inrush Current Transient
-
-
6 mA
-
-
0.1 A2s
Turn-on Voltage Threshold
Turn-off Voltage Threshold
33 V
31 V
34.5 V
32 V
35.5 V
34 V
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
ISOLATED DC/DC CONVERTERS
48 Vdc Input
28 Vdc/7 A Output
Output Specifications
Parameter
Min
Typ
Max
Notes
Vin=48 V, full load
Output Voltage Set Point
27.72 V
28.00 V
28.28 V
Line Regulation
Load Regulation
-
-
-
-
56 mV
56 mV
Regulation Over Temperature
(-40deg.C-85deg.C)
-
-
300 mV
Output Current
0 A
-
-
7 A
32.5 V
15 A
Output Voltage Trim Range
Current Limit Threshold
24 V
11 A
12.5 A
Ripple and Noise (rms)
-
-
80 mV
with a 220 uF low ESR aluminum
capacitor at output.
Ripple and Noise (pk-pk)
Turn On Time
-
20 mS
-
-
40 mS
0%
-
200 mV
80 mS
2%
Overshoot at Turn on
Output Capacitance
0 uF
5000 uF
Transient Response
Overshoot
-
-
-
-
350 mV
400 uS
350 mV
400 uS
500 mV
600 uS
500 mV
600 uS
20% ~ 100%
Max Load
di/dt=1 A/us, Vin=48 Vdc, Ta=25°C,
with a 1µF ceramic capacitor and
220 uF low ESR aluminum
capacitor output.
Settling Time
Overshoot
100% ~ 20%
Max Load
Settling Time
Note: All specifications are typical at nominal input, full load at 25 °C unless noted.
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency
88%
91%
-
Vin=48 V, full load , Ta=25°C
Switching Frequency
-
300 kHz
-
Input to Output
-
-
1500 V
1500 V
500 V
-
Input to Case
-
-
Output to Case
-
-
Isolation Resistance
Isolation Capacitance
Remote Sense Compesation
Over Temperature Protection
Over Voltage Protection
10 MΩ
-
-
0 V
-
-
1500 pF
2 V
-
105 ℃
-
It’s the temperature of baseplate.
33.5 V
-
36 V
Calculated Per Bell Core SR-332 (IO =
Nominal; Ta = 25 °C)
MTBF
TBD
Dimensions
Inches
millimeters
2.28 x 2.40 x 0.50
57.91 x 60.96 x 12.70
Weight
-
85 g
-
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
ISOLATED DC/DC CONVERTERS
48 Vdc Input
28 Vdc/7 A Output
Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
Signal Low (Unit On)
-0.3 V
2.4 V
-0.3 V
2.4 V
0 mA
-
-
-
-
-
0.8 V
35 V
0.8 V
35 V
2 mA
The remote on/off pin open, Unit
off.
Active Low
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Current Sink
The remote on/off pin open, Unit
on.
Active High
Output Trim Equations
Equations for calculating the trim resistor are shown below. 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
(100+ delta)⋅Vo −122.5
Rtrimup
Rtrimup=
− 2
[kΩ
]
Module
Module
Trim
GND
1.225⋅delta
Vout
Trim
GND
100
Rtrimdown =
− 2
[kΩ
]
delta
Rtrimdown
Note:
(
Vo _ req −Vo
)
delta =
×100
[%]
Vo
Vo_req=Desired(trimmed) output voltage[V]
Output voltage Vo=28.000 V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
ISOLATED DC/DC CONVERTERS
48 Vdc Input
28 Vdc/7 A Output
Efficiency Data
95.0%
90.0%
85.0%
80.0%
75.0%
36 V
48 V
76 V
70.0%
0.7A
1.75A
3.5A
5.25A
7A
OUTPUT CURRENT(A)
Vo=32.5 V
Thermal Derating Curve
Vin=48 V, Vo=32.5 V
Vin=75 V, Vo=28 V
Note: With maximum junction temperature of semiconductors derated to 120C.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
ISOLATED DC/DC CONVERTERS
48 Vdc Input
28 Vdc/7 A Output
Ripple and Noise Waveforms
36 Vdc input, 32.5 Vdc/7 A output
48 Vdc input, 32.5 Vdc/7 A output
75 Vdc input, 32.5 Vdc/7 A output
Note: Ripple and noise at full load, with a 220 uF low ESR aluminum capacitor 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
ISOLATED DC/DC CONVERTERS
48 Vdc Input
28 Vdc/7 A Output
Transient Response Waveforms
Vout=32.5 V, 20% to 100% Load Transients
Vout=32.5 V, 100% to 20% Load Transients
Note: Transient Response at di/dt=1 A/us, Vin=48 Vdc, with a 1µF ceramic capacitor and 220 µF low ESR
aluminum capacitor 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
ISOLATED DC/DC CONVERTERS
48 Vdc Input
28 Vdc/7 A Output
Mechanical Outline
Pin Connections
pin function pin size pin function pin size
1
2
3
4
5
Vin(+)
CNT
Case
Vin(-)
Vo(-)
0.039"
0.039"
0.039"
0.039"
0.079"
6
7
8
9
Sense(-)
Trim
Sense(+)
Vo(+)
0.039"
0.039"
0.039"
0.079"
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
ISOLATED DC/DC CONVERTERS
48 Vdc Input
28 Vdc/7 A Output
INSTALLATION INSTRUCTION
For DC-DC Converter, Model 0RHB-D3T28x
1) The DC-DC Converter can be operated at an ambient temperature up to 85°C maximum.
2) The DC-DC Converter is a built-in component. During installation into certain equipment the relevant
requirements of EN 60950-1:2001 + A11 and IEC 60950-1:2001 shall be maintained.
3) The DC-DC converter is not internal fused, the end user is to provide a maximum normal below 15A fuse in
unearthed pin when install the converter into final system.
4) The creepage distances, clearances and thickness of insulation between unearthed hazardous voltage input
and SELV output circuits have complied with basic insulation requirements according to EN 60950-1:2001 +
A11 and IEC 60950-1:2001.
5) The output ratings as shown on the label must not be exceeded.
6) The equipment is to be supplied from a DC source which is separated from AC mains by double or reinforced
insulation, or by basic insulation and suitable earthing providing equivalent protection.
7) The equipment is intended to be installed into a class I or Class II system, suitable external protection
devices have to provide in the final system. Protective earth has to be reliably identified and if equipment is
to be installed into Class I system.
8) The equipment shall be installed with an external cooling condition(air-cooling or heat sink) that maintain heat
sink at stable temperature of 100°C, typical cooling conditions are given in derating for reference. The airflow
direction is towards the side of the equipment.
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2007 Bel Fuse Inc. Specifications subject to change without notice. 101007
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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