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MDCM28P280M320A50 Datasheet(PDF) 5 Page - Vicor Corporation

Part # MDCM28P280M320A50
Description  Isolated, Regulated DC Converter
Download  25 Pages
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Manufacturer  VICOR [Vicor Corporation]
Direct Link  http://www.vicorpower.com
Logo VICOR - Vicor Corporation

MDCM28P280M320A50 Datasheet(HTML) 5 Page - Vicor Corporation

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Electrical Specifications
Specifications apply over all line, trim and load conditions, internal temperature TINT = 25ºC, unless otherwise noted. Boldface specifications apply over the
temperature range of -55°C < TINT < 125°C.
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Power Input Specification
Input voltage range
VIN
Continuous operation
16
28
50
V
Inrush current (peak)
IINRP
With maximum COUT-EXT, full resistive load
30.0
A
Input capacitance (internal)
CIN-INT
Effective value at nominal input voltage
29.7
µF
Input capacitance (internal) ESR
RCIN-INT
At 1 MHz
0.73
m
Ω
Input inductance (external)
LIN
Differential mode, with no further line bypassing
1
µH
No Load Specification
Input power – disabled
PQ
Nominal line, see Fig. 3
0.3
0.4
W
Worst case line, see Fig. 3
0.5
W
Input power – enabled with no load
PNL
Nominal line, see Fig. 4
6.0
8.4
W
Worst case line, see Fig. 4
8.5
W
Power Output Specification
Output voltage set point
VOUT-NOM
VIN = 28 V, nominal trim, at 100% Load, TINT = 25°C
27.86
28.0
28.14
V
Rated output voltage trim range
VOUT-TRIMMING
Trim range over temp, with > 5% rated load.
Specifies the Low, Nominal and High Trim conditions.
22.0
28.0
30.8
V
Output voltage load regulation
ΔV
OUT-LOAD
Linear load line. Output voltage increase from full rated
load current to no load (Does not include light load
regulation). See Fig. 6 and Sec. Design Guidelines
1.3194
1.4736
1.6296
V
Output voltage light load regulation
ΔV
OUT-LL
0% to 5% load, additional VOUT relative to calculated
load-line point; see Fig. 6 and Sec. Design Guidelines
0.0
5.01
V
Output voltage temperature
coefficient
ΔV
OUT-TEMP
Nominal, linear temperature coefficient, relative to
TINT = 25ºC. See Fig. 5 and Design Guidelines Section
-3.73
mV/°C
VOUT accuracy
%VOUT-ACCURACY
The total output voltage setpoint accuracy from the
calculated ideal VOUT based on load, temp and trim.
Excludes
ΔV
OUT-LL
-2.0
2.0
%
Rated output power
POUT
Continuous, VOUT
≥ 28.0 V
320
W
Rated output current
IOUT
Continuous, VOUT
≤ 28.0 V
11.50
A
Output current limit
IOUT-LM
Of rated IOUT max. Fully operational current limit, for
nominal trim and below
100
115
123
%
Current limit delay
tIOUT-LIM
The module will power limit in a fast transient event
1
ms
Efficiency
η
Full load, nominal line, nominal trim
93.0
93.6
%
Full load, over line and temperature, nominal trim
91.4
%
50% load, over rated line, temperature and trim
90.0
%
Output voltage ripple
VOUT-PP
Over all operating steady-state line and trim conditions, 20
MHz BW, minimum COUT-EXT, and at least 5 % rated load
535
mV
Output capacitance (internal)
COUT-INT
Effective value at nominal output voltage
33
µF
Output capacitance (internal) ESR
RCOUT-INT
At 1 MHz
0.069
m
Ω
Output capacitance (external)
COUT-EXT
20 MHz bandwidth. At nominal trim, minimum COUT-EXT and
at least > 5% rated load
1000
10000
µF
Output capacitance (external)
COUT-EXT-TRANS
Excludes component temperature coefficient For load
transients down to 0% rated load, with static trim
1000
10000
µF
Output capacitance (external)
COUT-EXT-
TRANS-TRIM
Excludes component temperature coefficient For load
transients down to 0% rated load, with dynamic trimming
10000
10000
µF
MDCM28AP280M320A50
DCMDC-DC Converter
Rev 1.5
vicorpower.com
Page 5 of 25
02/2016
800 927.9474


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