DCM
™
DC-DC Converter
DCM3623x50M31C2y7z
®
S
C
US
C
NRTL
US
Isolated, Regulated DC Converter
Features & Benefits
•
Isolated, regulated DC-DC converter
•
Up to 320 W, 11.43 A continuous
•
93.6% peak efficiency
•
818 W/in
3
Power density
•
Wide input range 16 – 50 Vdc
•
Safety Extra Low Voltage (SELV) 28.0 V Nominal Output
•
2250 Vdc isolation
•
ZVS high frequency switching
Product Ratings
V
IN
= 16 V to 50 V
V
OUT
= 28.0 V
(22.0 V to 30.8 V Trim)
P
OUT
= 320 W
I
OUT
= 11.43 A
Product Description
The DCM Isolated, Regulated DC Converter is a DC-DC
converter, operating from an unregulated, wide range input to
generate an isolated 28.0 Vdc output. With its high frequency
zero voltage switching (ZVS) topology, the DCM converter
consistently delivers high efficiency across the input line range.
Modular DCM converters and downstream DC-DC products
support efficient power distribution, providing superior power
system performance and connectivity from a variety of
unregulated power sources to the point-of-load.
Leveraging the thermal and density benefits of Vicor’s ChiP
packaging technology, the DCM module offers flexible thermal
management options with very low top and bottom side
thermal impedances. Thermally-adept ChiP based power
components enable customers to achieve cost effective power
system solutions with previously unattainable system size,
weight and efficiency attributes, quickly and predictably.
n
Enables low-profile, high-density filtering
•
Fully operational current limit
•
OV, OC, UV, short circuit and thermal protection
•
3623 through-hole ChiP package
n
1.524” x 0.898” x 0.284”
(38.72 mm x 22.8 mm x 7.21 mm)
Typical Applications
•
•
•
•
Industrial
Process Control
Heavy Equipment
Defense / Aerospace
Part Ordering Information
Product
Function
DCM
DCM =
DC-DC
Converter
36
Length
in mm
x 10
Package
Size
23
Width
in mm
x 10
Package
Type
x
T=
Through hole
ChiPs
Max
Input
Voltage
50
Range
Ratio
M
Max
Output
Voltage
31
Max
Output
Power
C2
Temperature
Grade
y
T = -40°C – 125°C
M = -55°C – 125°C
Option
7z
70 = Enhanced V
OUT
Regulation / Analog
Control Interface Version
Internal Reference
DCM™ DC-DC Converter
Page 1 of 23
Rev 1.0
08/2017
DCM3623x50M31C2y7z
Typical Application
DCM
TR
EN
R1
F1
FT
Load 1
L2
+OUT
Vin
L1
+IN
C1
-IN
C
OUT-EXT
-OUT
Non-isolated
Point-of-Load
Regulator
Load 2
Typical Application: Single DCM3623x50M31C2y7z, to a non-isolated regulator, and direct to load
DCM™ DC-DC Converter
Page 2 of 23
Rev 1.0
08/2017
DCM3623x50M31C2y7z
Pin Configuration
1
TOP VIEW
2
+IN
A
A’
+OUT
TR
B
B’
-OUT
EN
C
C’
+OUT
FT
D
-IN
E
D’
-OUT
3623 ChiP Package
Pin Descriptions
Pin
Number
A1
B1
C1
D1
E1
A’2, C’2
B’2, D’2
Signal Name
+IN
TR
EN
FT
-IN
+OUT
-OUT
Type
INPUT POWER
INPUT
INPUT
OUTPUT
INPUT POWER
RETURN
OUTPUT POWER
OUTPUT POWER
RETURN
Positive input power terminal
Function
Enables and disables trim functionality. Adjusts output voltage when trim active.
Enables and disables power supply
Fault monitoring
Negative input power terminal
Positive output power terminal
Negative output power terminal
DCM™ DC-DC Converter
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Rev 1.0
08/2017
DCM3623x50M31C2y7z
Absolute Maximum Ratings
The absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent damage to the device.
Electrical specifications do not apply when operating beyond rated operating conditions.
Parameter
Input Voltage (+IN to –IN)
Input Voltage Slew Rate
TR to - IN
EN to -IN
FT to -IN
5
Output Voltage (+Out to –Out)
Dielectric withstand (input to output)
Internal Operating Temperature
M Grade
T Grade
Storage Temperature
M Grade
Average Output Current
-65
125
14.5
°C
A
-55
-40
125
125
°C
°C
Basic insulation
T Grade
-0.5
2250
-40
125
39.2
mA
V
Vdc
°C
Comments
Min
-0.5
-1
-0.3
-0.3
-0.3
Max
65.0
1
3.5
3.5
3.5
Unit
V
V/µs
V
V
V
Figure 1
—
Thermal Specified Operating Area: Max Output Power
Figure 2
—
Electrical Specified Operating Area
vs. Case Temp, module at minimum full load efficiency
DCM™ DC-DC Converter
Page 4 of 23
Rev 1.0
08/2017
DCM3623x50M31C2y7z
Electrical Specifications
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 Input Specification
Input voltage range
Inrush current (peak)
Input capacitance (internal)
Input capacitance (internal) ESR
Input inductance (external)
V
IN
I
INRP
C
IN-INT
R
CIN-INT
L
IN
Continuous operation
With maximum C
OUT-EXT
, full resistive load
Effective value at nominal input voltage
At 1 MHz
Differential mode, with no further line bypassing
No Load Specification
Nominal line, see Fig. 3
Input power – disabled
P
Q
Worst case line, see Fig. 3
Nominal line, see Fig. 4
Input power – enabled with no load
P
NL
Worst case line, see Fig. 4
Power Output Specification
Output voltage set point
Rated output voltage trim range
Output voltage light load regulation
V
OUT
accuracy
Rated output power
Rated output current
Output current limit
Current limit delay
V
OUT-NOM
V
OUT-TRIMMING
ΔV
OUT-LL
%V
OUT-ACCURACY
P
OUT
I
OUT
I
OUT-LM
t
IOUT-LIM
η
Trim range over temp, with > 5% rated load.
Specifies the Low, Nominal and High Trim conditions.
0% to 5% load, additional V
OUT
relative to V
OUT
accuracy; see Fig. 5 and Sec. Design Guidelines
The total output voltage setpoint accuracy from the
calculated ideal V
OUT
based on trim. Excludes
ΔV
OUT-LL
Continuous, V
OUT
≥
28.0 V
Continuous, V
OUT
≤
28.0 V
Of rated I
OUT
max. Fully operational current limit, for
nominal trim and below
The module will power limit in a fast transient event
Full load, nominal line, nominal trim
Full load, over line and temperature, nominal trim
50% load, over rated line, temperature and trim
Output voltage ripple
Output capacitance (internal)
Output capacitance (internal) ESR
Output capacitance (external)
Output capacitance (external)
Output capacitance (external)
Output capacitance, ESR (ext.)
V
OUT-PP
C
OUT-INT
R
COUT-INT
C
OUT-EXT
C
OUT-EXT-TRANS
C
OUT-EXT-
TRANS-TRIM
16
28
50
30.0
V
A
µF
mΩ
29.7
0.73
1
µH
0.3
0.4
0.5
W
W
W
W
3.0
5.8
8.5
27.86
22.0
-0.00
-1.0
320
11.43
100
28.0
28.0
28.14
30.8
5.01
1.0
V
V
V
%
W
A
115
1
123
%
ms
%
%
%
92.9
91.4
90.0
93.6
Efficiency
20 MHz bandwidth. At nominal trim, minimum C
OUT-EXT
and
at least 5 % rated load
Effective value at nominal output voltage
At 1 MHz
Excludes component temperature coefficient For load
transients that remain > 5% rated load
Excludes component temperature coefficient For load
transients down to 0% rated load, with static trim
Excludes component temperature coefficient For load
transients down to 0% rated load, with dynamic trimming
At 10 kHz, excludes component tolerances
1000
1000
10000
10
535
33
0.069
10000
10000
10000
mV
µF
mΩ
µF
µF
µF
mΩ
R
COUT-EXT
DCM™ DC-DC Converter
Page 5 of 23
Rev 1.0
08/2017
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