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MDCM28AP240M320A50 Datasheet(PDF) 6 Page - Vicor Corporation

Part # MDCM28AP240M320A50
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

MDCM28AP240M320A50 Datasheet(HTML) 6 Page - Vicor Corporation

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Electrical Specifications (cont.)
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 Output Specifications (Cont.)
Output capacitance, ESR (ext.)
RCOUT-EXT
At 10 kHz, excludes component tolerances
10
m
Ω
Initialization delay
tINIT
See state diagram
25
40
ms
Output turn-on delay
tON
From rising edge EN, with VIN pre-applied. See timing
diagram
200
µs
Output turn-off delay
tOFF
From falling edge EN. See timing diagram
600
µs
Soft start ramp time
tSS
At full rated resistive load. Typ spec is 1-up with min
COUT-EXT. Max spec is for arrays with max COUT-EXT
45
250
ms
VOUT threshold for max
rated load current
VOUT-FL-THRESH
During startup, VOUT must achieve this threshold before
output can support full rated current
12.0
V
IOUT at startup
IOUT-START
Max load current at startup while VOUT
is below VOUT-FL_THRESH
1.33
A
Monotonic soft-start threshold
voltage
VOUT-MONOTONIC
Output voltage rise becomes monotonic with 10% of
preload once it crosses VOUT-MONOTONIC
12.0
V
Minimum required disabled duration
tOFF-MIN
This refers to the minimum time a module needs to be
in the disabled state before it will attempt to start via EN
2
ms
Minimum required disabled duration
for predictable restart
tOFF-MONOTONIC
This refers to the minimum time a module needs to be in
the disabled state before it is guaranteed to exhibit
monotonic soft-start and have predictable startup timing
100
ms
Voltage deviation (transient)
%VOUT-TRANS
Minimum COUT_EXT (10
↔ 90% load step), excluding
load line.
<10
%
Settling time
tSETTLE
10.0
ms
Powertrain Protections
Input Voltage Initialization threshold
VIN-INIT
Threshold to start tINIT delay
6
V
Input Voltage Reset threshold
VIN-RESET
Latching faults will clear once VIN falls below VIN-RESET
3
V
Input undervoltage recovery threshold
VIN-UVLO-
10
15
V
Input undervoltage lockout threshold
VIN-UVLO+
See Timing diagram
16
V
Input overvoltage lockout threshold
VIN-OVLO+
60
V
Input overvoltage recovery threshold
VIN-OVLO-
See Timing diagram
50
V
Output overvoltage threshold
VOUT-OVP
From 25% to 100% load. Latched shutdown
30.0
V
Output overvoltage threshold
VOUT-OVP-LL
From 0% to 25% load. Latched shutdown
31.2
V
Minimum current limited VOUT
VOUT-UVP
Over all operating steady-state line and trim conditions
9
V
Overtemperature threshold (internal)
TINT-OTP
125
°C
Power limit
PLIM
530
W
VIN overvoltage to cessation of
powertrain switching
tOVLO-SW
Independent of fault logic
1.4
µs
VIN overvoltage response time
tOVLO
For fault logic only
200
µs
VIN undervoltage response time
tUVLO
100
ms
Short circuit response time
tSC
Powertrain on, operational state
200
µs
Short circuit, or temperature fault
recovery time
tFAULT
See Timing diagram
1
s
MDCM28AP240M320A50
DCMDC-DC Converter
Rev 1.3
vicorpower.com
Page 6 of 25
02/2016
800 927.9474


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