Data Sheet
*
48V Input Maxi Family
DC-DC Converter Module
45
Features
• DC input range: 36 - 75V
• Input surge withstand: 100V for 100ms
• DC output: 2V - 48V
• Programmable output: 10 to 110%
• Regulation: ±0.2% no load to full load
• Efficiency: Up to 91%
• Maximum operating temperature:
100°C at full load
• Power density: Up to 100W/cubic inch
• Height above board: 0.43 in. (10,9 mm)
• Parallelable, with N+M fault tolerance
• Low noise ZCS/ZVS architecture
Shown actual size:
4.6 x 2.2 x 0.5 in
117 x 56 x 12,7 mm
Typical Applications: telecommunications
and distributed power systems
Product Overview
This DC-DC converter module uses
second generation power processing, control
and packaging technologies to provide the
performance, flexibility and cost effectiveness
expected of a mature Power Component.
For example, a plated-cavity core transformer
couples widely separated primary and
secondary windings, resulting in low in-to-
out parasitic capacitance and noise.
High frequency ZCS/ZVS switching,
advanced power semiconductor packaging
and thermal management provide high
power density with low temperature
gradients. Extensive use of silicon
Absolute Maximum Ratings
Parameter
Rating
-0.5 to +75
100
Unit
Vdc
Notes
+In to –In voltage
+In to –In voltage
Vdc
<100ms
PC to –In voltage
-0.5 to +7.0
-0.5 to +7.0
-0.5 to +1.5
1.0
Vdc
PR to –In voltage
Vdc
SC to –Out voltage
Vdc
–Sense to –Out voltage
Isolation voltage (in to out)
Isolation voltage (in to base)
Isolation voltage (out to base)
Storage temperature (C-Grade)
Operating temperature (C-Grade)
Pin soldering temperature
Pin soldering temperature
Mounting torque
Vdc
3000
Vrms
Vrms
Vrms
°C
1550
integration results in 1/3 the part count
of a first generation converter.
500
See part numbering chart on this
page for other product grades.
-40 to +125
-20 to +100
500 (260)
750 (390)
5 (.57)
Part Numbering
°C
Baseplate
°F (°C)
°F (°C)
<5 sec; wave solder
<7 sec; hand solder
6 each, # 4-40 or M3
V 48 A 5 C 400 A
Input
Voltage
Output
Voltage
Output
Power
in-lbs (N-m)
A = Maxi
B = Mini
C = Micro
Product Grade Temperatures (°C)
Grade
Storage
Operating
Thermal Resistance and Capacity
C
T
H
M
=
=
=
=
-
-
-
-
40 to +125
40 to +125
55 to +125
65 to +125
-
-
-
-
20 to +100
40 to +100
40 to +100
55 to +100
Parameter
Min
Typ
0.08
0.07
4.9
Max
Unit
°C/Watt
Baseplate to sink; flat, greased surface
Baseplate to sink; thermal pad (P/N 20263)
Baseplate to ambient
For long pin configuration add “L” to the
end of the part number. Slotted baseplate
(style 1) requires no designator. For
threaded baseplate add a “2” to the end of
the part number. For thru-hole, add a “3”.
See page 7 for dimensions.
°C/Watt
°C/Watt
Baseplate to ambient; 1000 LFM
Thermal capacity
1.1
°C/Watt
165
Watt-sec/°C
* The modules described here are the highest power for each output voltage.
Consult factory for availability of lower power units.
Vicor Corporation Tel: 800-735-6200 • 978-470-2900 • Fax: 978-475-6715
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The latest data sheets for individual models are available on the Vicor website at www.vicr.com