鈥?/div>
20 and 30 Ampere ratings
Data Sheet
MicroRAM
TM
Output Ripple Attenuation Module
Patents Pending
Shown actual size:
2.28 x 1.45 x 0.5 in
57,9 x 36,8 x 12,7 mm
Product Highlights
Vicor鈥檚 MicroRAM output ripple attenuation
module combines both active and passive
filtering to achieve greater than 40dB of
noise attenuation from 60Hz to 1Mhz. The
MicroRAM operates over a range of 3 to
30Vdc, is available in either 20 or 30A
models and is compatible with most
manufacturers switching converters
including Vicor鈥檚 1st and 2nd Generation
DC-DC converters.
The MicroRAM鈥檚 closed loop architecture
greatly improves load transient response and
with dual mode control, insures precise point
of load voltage regulation, The MicroRAM
supports redundant and parallel operation
with its integrated OR鈥檌ng diode function.
It is available in Vicor鈥檚 standard micro
package (quarter brick) with a variety of
terminations for through hole, socket or
surface mount applications.
Absolute Maximum Ratings
Parameter
+In to 鈥揑n
+In to 鈥揑n
Load current
Ripple Input (Vp-p)
Ripple Input (Vp-p)
Mounting torque
Pin soldering temperature
Pin soldering temperature
Storage temperature (C, T-Grade)
Storage temperature (H-Grade)
Storage temperature (M-Grade)
Operating temperature (C-Grade)
Operating temperature (T, H-Grade)
Operating temperature (M-Grade)
Rating
30
40
40
100
500
4-6 (0.45-0.68)
500 (260)
750 (390)
-40 to +125
-55 to +125
-65 to +125
-20 to +100
-40 to +100
-55 to +100
Unit
Vdc
Vdc
Adc
mV
mV
In. lbs (Nm)
擄F (擄C)
擄F (擄C)
擄C
擄C
擄C
擄C
擄C
擄C
Notes
Continuous
100ms
Continuous
60Hzc100 kHz
100kHz鈥?MHz
6 each, 4-40 screw
5 sec; wave solder
7 sec; wave solder
Baseplate
Baseplate
Baseplate
Thermal Resistance
Parameter
Baseplate to sink; flat, greased surface
Baseplate to sink; with thermal pad (P/N 20264)
Baseplate to ambient
Baseplate to ambient; 1000 LFM
Typ
0.16
0.14
8.0
1.9
Unit
擄C/Watt
擄C/Watt
擄C/Watt
擄C/Watt
Part Numbering
uRAM
Product
2
Type
2 = 20A
3 = 30A
C
Product Grade
C = 鈥?0擄C to +100擄C
T = 鈥?0擄C to +100擄C
H = 鈥?0擄C to +100擄C
M = 鈥?5擄C to +100擄C
2
Pin Style*
1 = Short Pin
2 = Long Pin
S = Short ModuMate
N = Long ModuMate
1
Baseplate
1 = Slotted
2 = Threaded
3 = Thru-hole
*Pin styles S & N are compatible with the ModuMate interconnect system for socketing and surface mounting.
Vicor Corp.
Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
MicroRAM
Rev. 1.1
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