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PDF V24C28C100A Data sheet ( Hoja de datos )
| Número de pieza | V24C28C100A | |
| Descripción | DC-DC Converter Module | |
| Fabricantes | Vicor | |
| Logotipo |  |
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45
Features
• DC input range: 18 - 36V
• Input surge withstand: 50V for 100ms
• DC output: 28V
• Programmable output: 10 to 110%
• Regulation: ±0.2% no load to full load
• Efficiency: 87%
• Maximum operating temperature:
100°C at full load
• Power density: 60W/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
24Vin / 28Vout / 100Watts
DC-DC Converter Module
Model Number V24C28C100A*
Shown actual size:
2.28 x 1.45 x 0.5 in
57,9 x 36,8 x 12,7 mm
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
integration results in 1/3 the part count
of a first generation converter.
* Part Numbering
V 24 C 5 C 100 A
Absolute Maximum Ratings
Parameter
+In to –In voltage
+In to –In voltage
PC to –In voltage
PR to –In voltage
+Out to –Out voltage
SC 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
Rating
-0.5 to +36
50
-0.5 to +7.0
-0.5 to +7.0
-0.5 to +41.0
-0.5 to +1.5
3000
1550
500
-40 to +125
-20 to +100
500 (260)
750 (390)
5 (.57)
Input
Voltage
Output
Voltage
Output
Power
A = Maxi
B = Mini
C = Micro
Product Grade Temperatures (°C)
Grade
Storage
Operating
C = - 40 to +125 - 20 to +100
T = - 40 to +125 - 40 to +100
H = - 55 to +125 - 40 to +100
M = - 65 to +125 - 55 to +100
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.
Thermal Resistance and Capacity
Parameter
Baseplate to sink; flat, greased surface
Baseplate to sink; thermal pad (P/N 20265)
Baseplate to ambient
Baseplate to ambient; 1000 LFM
Thermal capacity
Min
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vrms
Vrms
Vrms
°C
°C
°F (°C)
°F (°C)
in-lbs (N-m)
Notes
<100ms
See part numbering chart on this
page for other product grades.
Baseplate
<5 sec; wave solder
<7 sec; hand solder
6 each, # 4-40 or M3
Typ Max Unit
0.24 °C/Watt
0.21 °C/Watt
10.9 °C/Watt
2.8 °C/Watt
48 Watt-sec/°C
Vicor Corporation Tel: 800-735-6200 Fax: 978-475-6715 Data Sheet: V24C28C100A DC-DC Converter Date: 11-00 Rev. 2
Set your site on VICOR at www.vicr.com
Page 1 of 8
1 page  
CONTROL FUNCTIONS - SC PIN
Output Voltage Programming
The output voltage of the converter can be adjusted or
programmed via fixed resistors, potentiometers or voltage
DACs. See Figures 7 & 8.
Error
Amp
1kΩ
0.033µF
1.23V
+Out
SC
–Out
RD
Trim Down
Load
Error
Amp
1kΩ
0.033µF
1.23V
+Out
SC
–Out
RU
Trim Up
Load
RD (ohms) =
1,000 Vout
Vnom - Vout
1,000 (Vout-1.23) Vnom
RU (ohms) =
- 1,000
1.23 (Vout-Vnom)
Figure 7—Output voltage trim down circuit.
Trim Down
1. This converter is not a constant power device – it has a
constant current limit. Hence, available output power is
reduced by the same percentage that output voltage is
trimmed down. Do not exceed maximum rated output current.
2. The trim down resistor must be connected to the –Out pin.
Figure 8—Output voltage trim up circuit.
Trim Up
1. The converter is rated for a maximum delivered power. To ensure
that maximum rated power is not exceeded, reduce maximum
output current by the same percentage increase in output voltage.
2. The trim up resistor must be connected to the +Out pin.
3. Do not trim the converter above maximum trim range
(typically +10%) or the output over voltage
protection circuitry may be activated.
Trim values calculated automatically:
Resistor trim calculators are available on Vicor’s
web site at URL: www.vicr.com/tools.html
or by requesting a copy of Vicor’s
Applications Manual on a CD ROM.
Resistor values can be calculated for fixed
trim up, fixed trim down and for variable
trim up or down cases for both 1st and
2nd Generation DC-DC converters.
In addition to trimming information, the
web site and the applications manual on
CD ROM also include design tips,
applications circuits, EMC suggestions,
thermal design guidelines and PDF data
sheets for all available Vicor products.
Vicor Corporation Tel: 800-735-6200 Fax: 978-475-6715 Data Sheet: V24C28C100A DC-DC Converter Date: 11-00 Rev. 2
Set your site on VICOR at www.vicr.com
Page 5 of 8
5 Page | ||
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| PDF Descargar | [ Datasheet V24C28C100A.PDF ] | |
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