参数资料
| 型号： | VI-RAM-C1 |
| 厂商： | Vicor Corporation |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | VI-RAM RIPPLE ATTENUATOR MODULE |
| 设计资源： | VI-200, VI-J00 Design Guide, Appl Manual |
| 标准包装： | 1 |
| 系列： | VI-RAM™, VE-RAM |
| 附件类型： | 输出衰减器 |
| 适用于相关产品： | Vicor VI-200，VI-J00，FlatPAC，ComPACS，MegaMod |
| 其它名称： | 1102-1497 |
Data Sheet
VI-RAM TM /VE-RAM (RoHS Compliant)
Features
? RoHS compliant (VE versions)
? Reduces output ripple to <3 mV pp
? Compatible with any VI-200/VI-J00-
based product: 5 to 50 Vdc output
Ripple Attenuator Modules
?
?
?
Full attenuation up to 20 A
No adjustments required
93 – 99% efficiency
?
Converter sense, trim, overvoltage
and overcurrent retained
VI-RAM Specifications
(typical at T BP = 25°C, nominal line, 75% load unless otherwise specified)
? Size: 2.28" x 2.4" x 0.5"
(57,9 x 61,0 x 12,7 mm)
? CE Marked
Parameter
Output Noise & Ripple
VI-200
Min.
Typ.
Max.
3 mV pp
Remarks
From 10% of full rated
VI-J00
10 mV pp
output current of the
source converter to full load
Product Highlights
Ripple attenuator modules may be connected
to VI-200 or VI-J00 converters, FlatPACs,
Input Voltage Range
Output Voltage Deviation
5 Vdc
0.5%
50 Vdc
From the output voltage of
the VI-200 source to which
the VI-RAM will be connected
ComPACs or MegaModules, with output
voltages from 5 – 50 V, to limit output noise
to less than 3 mV peak-to-peak at loads up
to 20 A. Combining active and passive
Full Load Current
Overload Current
DC Voltage Drop
10 A
20 A
30 A
0.34 0.41
E1, C1, I1 or M1
E2, C2, I2 or M2
At max. operating baseplate
temperature
Up to 10 A
filtering, the VI-RAM attenuates both
low frequency input power source
0.34 0.44
0.34 0.75
Dissipation = (DC voltage drop) x (Load current + 15 mA)
Up to 20 A
Up to 30 A (overload)
fundamental and harmonics, as well as high
Isolation
500V RMS
Input/Output to baseplate
Ounces(Grams)
frequency switching components in the
frequency range of DC to 20 MHz, while
exhibiting efficiencies of 93-99%. No
adjustments are required, and remote sense
Size
Weight
E,C-Grade
I,M-Grade
3.6(102)
2.28" x 2.4" x 0.5" SlimMod and FinMod
(57,9 x 61,0 x 12,7) packages available
3.0(85)
3.7(105) 3.8(107)
and output voltage trim features are retained.
A member of Vicor ’s high-power density,
high performance, component-level
power building blocks, the VI-RAM offers
the power systems architect a single,
flexible, component-level solution to almost
any “clean power” problem. At the same
time, the VI-RAM eliminates the space,
efficiency, and weight penalties associated
with linear power sources, and the stability,
efficiency, and adjustment penalties
associated with external “add on” filters for
conventional switchers.
Electrical Considerations
Transient Response and Dynamic Range: Full rated noise attenuation will be maintained at
the VI-RAM output for step load changes up to 10% of the rated output current of the source
converter, with the VI-RAM exhibiting an underdamped output excursion of less than 10 mV pp.
Some degradation in noise attenuation during the transient response period following the step may be
exhibited for larger load changes. Adding output capacitance to the VI-RAM will improve the
rejection over a larger dynamic range.
Sense Connection: Sense -In and Sense -Out connections are provided on the VI-RAM. Sense -In
connections must be connected to the corresponding sense connections on the Vicor converter. Sense -Out
pins on the VI-RAM must be connected between the VI-RAM power-output pins and the point of load.
Output Load Characteristics: When used in combination with Vicor DC-DC converters, and
with sense leads connected, the VI-RAM will be stable for any non-inductive load.
DC Voltage Drop: Below full load, the input to output DC Voltage Drop is controlled to be an
essentially constant voltage which appears between the –IN and –OUT terminals. In overload the DC
voltage drop will rise as current increases. A few tens of millivolts appears between the +IN and
+OUT terminals. Care should be taken not to connect IN and OUT terminals (i.e. through scope probe
returns, grounds, etc.), as attenuation will be adversely affected .
Product Grade Specifications
Parameter (Up to 10 A) VI-RAM-E1
(Up to 20 A) VI-RAM-E2
Storage Temp. -20°C to +105°C
VI-RAM-C1
VI-RAM-C2
-40°C to +105°C
VI-RAM-I1
VI-RAM-I2
-55°C to +105°C
VI-RAM-M1
VI-RAM-M2
-65°C to +105°C
Operating Temp.
(Baseplate)
-10°C to +100°
-25°C to +100°C
-40°C to +100°C
-55°C to +100°C
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
VI-RAM Ripple Attenuator Modules
Rev.1.6
Page 1 of 4
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