DCD300P120T400A40 Datasheet, PDF (6/25 Pages) Vicor Corporation – DCM™ DC-DC Converter

DCM300P120x400A40
Electrical Specifications (cont.)
Specifications apply over all line, trim and load conditions, internal temperature T_INT = 25ºC, unless otherwise noted. Boldface specifications apply over the
temperature range of -40°C < T_INT < 125°C for T grade and -55°C < T_INT < 125°C for M grade.
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Power Output Specifications (Cont.)
Output capacitance, ESR (ext.)
R_COUT-EXT At 10 kHz, excludes component tolerances
10
mΩ
Initialization delay
Output turn-on delay
t_INIT
See state diagram
t_ON
From rising edge EN, with V_IN pre-applied. See timing
diagram
25
40
ms
200
µs
Output turn-off delay
t_OFF
From falling edge EN. See timing diagram
600
µs
Soft start ramp time
At full rated resistive load. Typ spec is 1-up with min
t_SS
C_OUT-EXT. Max spec is for arrays with max C_OUT-EXT
36
100
ms
V_OUT threshold for max
rated load current
V_{OUT-FL-THRESH}
During startup, V_OUT must achieve this threshold before
output can support full rated current
6.0
V
I_OUT at startup
Monotonic soft-start threshold
voltage
I_OUT-START
V_{OUT-MONOTONIC}
Max load current at startup while V_OUT
is below V_{OUT-FL_THRESH}
Output voltage rise becomes monotonic with 10% of
preload once it crosses V_{OUT-MONOTONIC}
3.33
A
6.0
V
Minimum required disabled duration
t_OFF-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
This refers to the minimum time a module needs to be in
for predictable restart
t_{OFF-MONOTONIC} the disabled state before it is guaranteed to exhibit
monotonic soft-start and have predictable startup timing
100
ms
Voltage deviation (transient)
%V_{OUT-TRANS Minimum COUT_EXT (10 ↔ 90% load step), excluding}
<10
%
Settling time
t_SETTLE
load line.
8.0
ms
Powertrain Protections
Input Voltage Initialization threshold
V_IN-INIT
Threshold to start t_INIT delay
75
V
Input Voltage Reset threshold
V_IN-RESET
Latching faults will clear once V_IN falls below V_IN-RESET
50
Input undervoltage recovery threshold V_IN-UVLO-
125
Input undervoltage lockout threshold V_IN-UVLO+ See Timing diagram
Input overvoltage lockout threshold
V_IN-OVLO+
Input overvoltage recovery threshold V_IN-OVLO- See Timing diagram
423
V
170
V
178
V
455
V
V
Output overvoltage threshold
V_OUT-OVP From 25% to 100% load. Latched shutdown
15.8
V
Output overvoltage threshold
V_OUT-OVP-LL From 0% to 25% load. Latched shutdown
16.2
V
Minimum current limited V_OUT
V_OUT-UVP Over all operating steady-state line and trim conditions
5
V
Overtemperature threshold (internal)
T_INT-OTP
125
°C
Power limit
V_IN overvoltage to cessation of
powertrain switching
P_LIM
t_OVLO-SW
Independent of fault logic
650
W
1.5
µs
V_IN overvoltage response time
t_OVLO
For fault logic only
200
µs
V_IN undervoltage response time
t_UVLO
100
ms
Short circuit response time
Short circuit, or temperature fault
recovery time
t_SC
t_FAULT
Powertrain on, operational state
See Timing diagram
200
µs
1
s
DCM™ DC-DC Converter
Page 6 of 25
Rev 1.2
07/2015
vicorpower.com
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