0RCR-18S08L [BEL]
ISOLATED DC/DC CONVERTERS; 隔离式DC / DC转换器
| 型号： | 0RCR-18S08L |
| 厂家： | 
BEL FUSE INC. |
| 描述： | ISOLATED DC/DC CONVERTERS |
| 文件： | 总7页 (文件大小：343K) |
| 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 8 VDC/18 A Output, 1/8 Brick
0RCR-18S “Cimarron” Series
RoHS Compliant
•
•
•
•
•
•
Industry Standard Eighth-Brick Package
Up to 140 W at 95% Efficiency
1500 V Isolation
Remote On/Off
Low Cost
UL/cUL Recognized (Certified to EN60950-1)
Description
The 0RCR “Cimarron” Series are isolated DC/DC converters that operate from a nominal 48 VDC source. These
converters use a half bridge power train to provide isolation and step down. These units will provide up to 140 W
of output power from a nominal 48 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. These converters are provided
in an industry standard eighth-brick package.
Part Selection
Output
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
Voltage
Vin / 6
48 Vdc
18 A
140 W
95%
0RCR-18S08L
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
Input Voltage (continuous)
-0.3 V
-
80 V
Remote On/Off
-0.3 V
-40 °C
-40 °C
-
-
-
80 V
85 °C
125 °C
Ambient Temperature
Storage Temperature
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
36 V
-
60 V
Input Current (full load)
Input Current (no load)
Input Current (disabled)
-
-
-
-
-
-
3 A
45 mA
3 mA
Input Reflected Ripple Current
(pk-pk)
Tested with simulated source impedance
of 10 uH, 5 Hz to 20 MHz; use a 47
uF/100 V electrolytic capacitor with ESR
= 1 ohm max. at 200 kHz at 25 °C.
-
-
-
10 mA
Input Reflected Ripple Current
(rms)
-
5 mA
I2t Inrush Current Transient
Turn On Voltage Threshold
Turn Off Voltage Threshold
-
-
-
0.039 A2s
34.5 V
0.062 A2s
-
-
32.5 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 8 VDC/18 A Output, 1/8 Brick
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Voltage Set Point
Vin=36 V
Vin=48 V
Vin=60 V
-
-
-
6 V
8 V
10 V
-
-
-
Line Regulation
Load Regulation
-
4 V
-
Vin=36 V
Vin=48 V
Vin=60 V
-
-
-
0.5 V
0.5 V
0.5 V
-
-
-
Regulation Over Temperature
(-40 °C to +85 °C)
-
30 mV
-
Output Current
0 A
-
18 A
Current Limit Threshold
Short Circuit Surge Transient
120%Io,max
-
-
140%Io,max
2.1 A2s
1.3 A2s
Test conditions:
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
-
-
15 mV
90 mV
20 mV
0-20 MHz BW, with a
1 uF ceramic capacitor
and a 15 uF Tantalum
capacitor at the output;
Vin=48 V.
110 mV
Turn on Time
-
-
10 mS
-
Overshoot at Turn on
Output Capacitance
0%
-
3%
0 uF
3000 uF
Transient Response
Overshoot
-
-
-
-
100 mV
120 uS
100 mV
120 uS
-
25% ~ 50%
Max Load
Test conditions: di/dt =
0.5 A/uS, Vin=48 V,
with a 500 uF
electrolytic capacitor at
the output.
Settling Time
150 uS
-
Vin=48 V
Overshoot
50% ~ 25%
Max Load
Settling Time
150 uS
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 8 VDC/18 A Output, 1/8 Brick
General Specifications
Parameter
Min
Typ
Max
Notes
Vin=48 V, Io=Io max
Efficiency
93%
95%
-
Switching Frequency
Isolation capacitance
200 kHz
-
220 kHz
500 pF
240 kHz
-
Average PCB temperature will not
exceed 115 °C.
Over Temperature Protection
-
-
115 °C
Calculated Per Bell Core SR-332 (IO =
80% load; Ta = 25 °C)
MTBF
2.4X106 hours
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
2.30 x 0.9 x 0.41
58.4 x 22.8 x 10.41
Weight
-
23 g
-
Note: All specifications are typical at 25 °C unless otherwise stated.
Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
Current Sink
-0.3 V
2.5 V
-
-
-
0.8 V
80 V
-
0RCR-18S08L. The remote
on/off pin open, Unit off.
Active Low
0
Back bias diode
Efficiency Data:
98.00%
96.00%
94.00%
92.00%
90.00%
88.00%
36V
48V
60V
86.00%
5.00
10.00
OUTPUT CURRENT (A )
15.00
20.00
0.00
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 8 VDC/18 A Output, 1/8 Brick
Output Voltage vs. Current
12
10
8
36V
48V
60V
6
4
5.00
10.00
15.00
20.00
0.00
OUTPUT CURRENT (A)
Thermal Derating Curve
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 8 VDC/18 A Output, 1/8 Brick
Thermal Images
Test conditions:
Input voltage: 48 Vdc
Output current: 18 A
Output power: 140 W
Airflow: 200 LFM
Ambient: 25 ˚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 8 VDC/18 A Output, 1/8 Brick
Turn-On (Enable)
Waveform: 0 A Load @ Vin=48 Vdc
Waveform:18 A Load (resistave load) @ Vin=48 Vdc
CH1=Vout CH2=Enable On
CH1=Vout CH2=Enable On
Transient Response
50% to 75% and 75% to 50% load Transient at 48 Vdc input and Ta=25 deg C
External Load Capacitance: 1 µF ceramic capacitor and 15 µF tantalum capacitor
Input Reflected Ripple
Output Ripple/Noise
Input reflected ripple @ Vin=48 Vdc, full load
Ripple and noise at full load, 48 Vdc input
Ta=25 deg C, and with a 1 µF ceramic capacitor
and a 15 µF tantalum capacitor on output.
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 8 VDC/18 A Output, 1/8 Brick
Mechanical Outline
Pin Connections
Pin
Function
1
2
3
4
5
Vin+
Remote On/Off
Vin-
Vout-
Vout+
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2008 Bel Fuse Inc. Specifications subject to change without notice. 121808
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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