24Vin / 48Vout / 400Watts
45
DC-DC Converter Module
See Page 8 for Part Numbers and Options
Features
• DC input range: 18 - 36V
• Input surge withstand: 50V for 100ms
• DC output: 48V
• Programmable output: 10 to 110%
• Regulation: ±0.2% no load to full load
• Efficiency: 89.8%
• Maximum operating temperature:
100°C at full load
• Power density: 79W/cubic inch
• Height above board: 0.43 in. (10,9 mm)
• Parallelable, with N+M fault tolerance
• Low noise ZCS/ZVS architecture
• Pin style: See Page 6
Shown actual size:
4.6 x 2.2 x 0.5 in
117 x 56 x 12,7 mm
(Product shown is for size only.
Pin and baseplate style may vary.
Pin style 1 and slotted baseplate are shown)
• Baseplate: See Page 7
Product Overview
Absolute Maximum Ratings
This DC-DC converter module uses
2nd 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
Parameter
Rating
-0.5 to +36
50
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 +62.9
-0.5 to +62.9
1.0
Vdc
PR to –In voltage
Vdc
+Out to –Out voltage
+Sense to –Out voltage
–Sense to –Out voltage
SC to –Out voltage
Vdc
Vdc
Vdc
-0.5 to +1.5
3000
Vdc
Isolation voltage (in to out)
Isolation voltage (in to base)
Isolation voltage (out to base)
Storage temperature
Operating temperature
Pin soldering temperature
Pin soldering temperature
Mounting torque
Vrms
Vrms
Vrms
°C
1550
integration results in 1/3 the part count
of a 1st Generation converter.
500
See Page 8
See Page 8
500 (260)
750 (390)
5 (0.57)
125 Max
°C
Baseplate
This converter is manufactured in a
°F (°C)
°F (°C)
in-lbs (N-m)
<5 sec; wave solder
<7 sec; hand solder
6 each, # 4-40 or M3
state-of-the-art automated manufacturing
facility on a short-cycle-time robotic line
having a capacity of one module every ten
seconds. In-line process controls are
designed to achieve low defect rates and
consistent quality. A comprehensive CIM
system controls the dispatching, assembly
and testing of each module, enabling small
lots to be manufactured as efficiently as
hundreds-of-thousands of units.
Thermal Resistance and Capacity
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
°C/Watt
°C/Watt
Baseplate to ambient; 1000 LFM
Thermal capacity
1.1
°C/Watt
165
Watt-sec/°C
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
24Vin/48Vout/400W DC-DC Converter
Rev. 5.2
Page 1 of 9
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