24Vin / 28Vout / 200Watts
45
• DC input range: 18 - 36V
• Input surge withstand: 50V for 100ms
• DC output: 28V
DC-DC Converter Module
*
Model Number V24B28C200B
Features
• Programmable output: 10 to 110%
• Regulation: ±0.2%
• Efficiency: 86.5%
• Maximum operating temperature:
100°C at full load
• Power density: 80W/cubic inch
• Height above board: 0.43 in. (10,9 mm)
• Parallelable, with N+M fault tolerance
• Low noise ZCS/ZVS architecture
Typical Applications:
telecommunications, process control and
distributed power systems
Shown actual size:
2.28 x 2.2 x 0.5 in
57,9 x 55,9 x 12,7 mm
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
integration results in 1/3 the part count
of a 1st Generation converter.
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 +36.9
-0.5 to +36.9
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 (C–Grade)
Vrms
Vrms
Vrms
°C
1550
500
See part numbering chart on this
page for other product grades.
*
-40 to +125
Part Numbering
Operating temperature (C–Grade) -20 to +100
°C
Baseplate
V 24 B 5 C 200 B
Pin soldering temperature
Pin soldering temperature
Mounting torque
500 (260)
750 (390)
5 (0.57)
°F (°C)
°F (°C)
in-lbs (N-m)
<5 sec; wave solder
<7 sec; hand solder
6 each, # 4-40 or M3
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
C
T
H
M
=
=
=
=
-
-
-
-
40 to +125
40 to +125
55 to +125
65 to +125
-
-
-
-
A = Maxi
B = Mini
C = Micro
Thermal Resistance and Capacity
Parameter
Min
Typ
0.16
0.14
8.0
Max
Unit
°C/Watt
For pin styles see page 6. 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.
Baseplate to sink; flat, greased surface
Baseplate to sink; thermal pad (P/N 20264)
Baseplate to ambient
°C/Watt
°C/Watt
Baseplate to ambient; 1000 LFM
Thermal capacity
1.9
°C/Watt
83
Watt-sec/°C
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
V24B28C200B DC-DC Converter
Rev. 3
Page 1 of 8
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