PRELIMINARY
Data Sheet
*
45
24V Input Maxi Family
DC-DC Converter Module
Features
• DC input range: 18 - 36V
• Input surge withstand: 50V for 100ms
• DC output: 2V - 48V
• Programmable output: 10 to 110%
• Regulation: ±0.2% no load to full load
• Efficiency: Up to 89%
• Maximum operating temperature:
100°C at full load
• Power density: Up to 80W/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,
process control and distributed power systems
Product Overview
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
integration results in 1/3 the part count
of a 1st Generation converter.
Absolute Maximum Ratings
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 +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
500
See part numbering chart on this
page for other product grades.
-40 to +125
-20 to +100
500 (260)
750 (390)
5 (0.57)
°C
Baseplate
Part Numbering
°F (°C)
°F (°C)
<5 sec; wave solder
<7 sec; hand solder
6 each, # 4-40 or M3
V 24 A 12C 500 A
in-lbs (N-m)
Output
Voltage
Pin
Style
Output
Power
Input Voltage
24 = 24Vin
48 = 48Vin
300 = 300Vin
375 = 375Vin
Base-
plate
Product Grade Temperatures (°C)
Grade
Storage
Operating
20 to +100
40 to +100
40 to +100
55 to +100
Thermal Resistance and Capacity
C
T
H
M
=
=
=
=
-
-
-
-
40 to +125
40 to +125
55 to +125
65 to +125
-
-
-
-
A = Maxi
B = Mini
C = Micro
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 pin styles see page 6. 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 Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
24V Maxi Family
Rev. 2.3
Page 1 of 8
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