SRCA-08S12L [BEL]
ISOLATED DC/DC CONVERTERS; 隔离式DC / DC转换器型号: | SRCA-08S12L |
厂家: | BEL FUSE INC. |
描述: | ISOLATED DC/DC CONVERTERS |
文件: | 总5页 (文件大小:224K) |
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 12 VDC/8.5 A Output, 1/16 Brick
SRCA-08S12L
RoHS Compliant
Rev.B
•
•
•
•
•
Isolated
•
•
•
•
•
Input Under Voltage Lockout
Input Over Voltage Shutdown
OCP/SCP
Fixed Frequency
High Efficiency
High Power Density
Low Cost
Over Temperature Protection
Remote On/Off
Description
The SRCA-08S12L is an isolated DC/DC converter that operates 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 100 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 sixteenth-brick package.
Part Selection
Output
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
Voltage
12 V
36 V - 55 V
8.5 A
100 W
95%
SRCA-08S12L
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
-
-
18 V
-
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
500 V
-
-
-40 °C
-40 °C
85 °C
125 °C
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
36 V
-
55 V
2.5 A
Input Current (full load)
Input Current (no load)
Remote Off Input Current
-
-
-
-
-
120 mA
10 mA
4 mA
Active Low
Tested with simulated source
impedance of 10 uH, 5 Hz to 20
MHz; use a 100 uF/100 V
Input Reflected Ripple Current (pk-pk)
-
40 mA
100 mA
electrolytic capacitor and 1 uF/100
V ceramic capacitor at the input.
Input Reflected Ripple Current (rms)
I2t Inrush Current Transient
-
-
10 mA
30 mA
0.039 A2s
0.062 A2s
Input Over Voltage Protection Threshold
Turn On Voltage Threshold
-
-
-
59 V
35 V
30 V
-
-
-
Turn Off Voltage Threshold
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 12 VDC/8.5 A Output, 1/16 Brick
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Voltage Set Point
Vin=36 V
Vin=48 V
Vin=55 V
8.8 V
11.8 V
13.5 V
9 V
12 V
13.75 V
9.2 V
12.2 V
13.95 V
lout=no load
Line Regulation
Load Regulation
-
4.75 V
5.0 V
Vin=36 V
Vin=48 V
Vin=55 V
-
-
-
0.6 V
0.6 V
0.6 V
0.8 V
0.8 V
0.8 V
Regulation Over Temperature
(-40 °C to +85 °C)
-
100 mV
200 mV
Output Current
0 A
9 A
-
-
8.5 A
14 A
2.1 A2s
Current Limit Threshold
Short Circuit Surge Transient
-
1.3 A2s
Test conditions:
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
-
-
30 mV
90 mV
60 mV
0-20 MHz BW, with a 1 uF ceramic
capacitor and a 10 uF Tantalum
capacitor at the output; Vin=48 V.
150 mV
Turn on Time
-
-
10 mS
20 mS
3%
Overshoot at Turn on
Output Capacitance
0%
-
0 uF
2000 uF
Transient Response
Overshoot
Settling Time
Overshoot
-
-
-
-
150 mV
350 mV
50% ~ 75%
Max Load
30 uS
150 mV
30 uS
100 uS
350 mV
100 uS
Test conditions: di/dt = 0.5 A/uS,
Vin=48 V
Vin=48V
75% ~ 50%
Max Load
Settling Time
Note: All specifications are typical at 25 °C unless otherwise stated.
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency
93%
95%
-
Vin=48V, Io=Io,max
Switching Frequency
Isolation Capacitance
160 kHz
-
190 kHz
1500 pF
220 kHz
-
Average PCB temperature will not
exceed 115 °C.
Over Temperature Protection
-
-
115 °C
Calculated Per Bell Core SR-332
(IO=80% full load; Vo=12 V; Ta = 25 °C)
MTBF
3,008,073 hours
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
1.3 x 0.9 x 0.4
33.0 x 22.9 x 10.2
Weight
-
14.5 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 12 VDC/8.5 A Output, 1/16 Brick
Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
-0.3 V
2.4 V
-
-
0.8 V
18 V
SRCA-08S12L. The remote
on/off pin open, Unit off.
Active Low
Efficiency Data
100.00%
95.00%
90.00%
85.00%
80.00%
75.00%
36 V
48 V
55 V
0.00
2.00
4.00
6.00
8.00
OUTPUT CURRENT (A)
Thermal Derating Curve
Note: Derating curve is tested at nominal input voltage.
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 12 VDC/8.5 A Output, 1/16 Brick
Ripple and Noise Waveform
Note: Ripple and noise at full load, 48 V input and Ta=25 deg C, and with a 10 uF tantalum capacitor and 1 uF
ceramic capacitor on output.
Transient Response Waveforms
50% to 75% Transient at 48 V input
75% to 50% load Transient at 48 V input
Note: Transient response at di/dt=0.5 A/uS, 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 12 Vdc/8.5 A Output, 1/16 Brick
Mechanical Outline
Pin Connections
Pin
Function
1
Vin+
Remote On/Off
Vin-
2
3
4
Vout-
5
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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