SRCA-08S12L [BEL]

ISOLATED DC/DC CONVERTERS; 隔离式DC / DC转换器
SRCA-08S12L
型号: SRCA-08S12L
厂家: BEL FUSE INC.    BEL FUSE INC.
描述:

ISOLATED DC/DC CONVERTERS
隔离式DC / DC转换器

转换器 电源电路
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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