DCM
™
in a VIA Package
DC-DC Converter
DCM3414x50M53C2yzz
®
S
C
US
C
NRTL
US
Isolated, Regulated DC Converter
Features & Benefits
•
Isolated, regulated DC-to-DC converter
•
Up to 320 W, 6.67 A continuous
•
92.3% peak efficiency
•
183 W/in
3
Power density
•
Wide input range 16 – 50 Vdc
•
Safety Extra Low Voltage (SELV) 48.0 V Nominal Output
•
ZVS high frequency switching
•
Allows remote sense or local sense operation
•
Tight regulation over all line and load conditions
•
Fully operational current limit
•
OV, OC, UV, short circuit and thermal protection
•
Available in chassis mount and through hole VIA package
Product Ratings
V
IN
= 16 V to 50 V
V
OUT
= 48.0 V
(28.8 V to 52.8 V Trim)
P
OUT
= 320 W
I
OUT
= 6.67 A
Product Description
The DCM in a VIA package is an Isolated, Regulated DC-to-DC
Converter, operating from an unregulated, wide range input to
generate an isolated 48.0 Vdc output. With its high frequency
zero voltage switching (ZVS) topology, the DCM converter
consistently delivers high efficiency across the input line range.
The DCM provides tight output voltage regulation and offers a
secondary-referenced control interface for trim, enable, and
remote sense operation. 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.
The VIA package offers flexible thermal management options
with very low top and bottom side thermal impedances.
n
3.380” x 1.400” x 0.370”
(85.93 mm x 35.5 mm x 9.40 mm)
Typical Applications
•
•
•
•
Industrial
Process Control
Heavy Equipment
Defense / Aeorspace
Part Ordering Information
Product
Function
Package
Length
Package
Width
Package
Type
Max
Input
Voltage
50
Range
Ratio
Max
Output
Voltage
53
Max
Output
Power
C2
Product Grade
(Case Temperature)
Size:
3.380 x 1.400 x 0.370 in
85.93 x 35.5 x 9.40 mm
Option Field
DCM
DCM =
DC-DC
Converter
[1]
[2]
34
14
x
M
y
C = -20 to 100°C
[1]
T = -40 to 100°C
[1]
M = -55 to 100°C
[1][2]
z
z
Length in
Inches x 10
Width in
Inches x 10
B = Board VIA
V = Chassis VIA
Internal Reference
01 = Chassis/Analog
05 = Short Pin/Analog
09 = Long Pin/Analog
High Temperature Power Derating may apply, see Thermal Specified Operating Area, Figure 1 on Page 4.
M-Grade available on selected models. Consult vicorpower.com for details.
DCM
™
in a VIA Package
Page 1 of 22
Rev 1.3
06/2019
DCM3414x50M53C2yzz
Typical Application
Load 1
F
V
IN
DCM
TM
in a VIA package
+IN
+OUT
VDDE
EN
TR
-SENSE
+SENSE
C
-IN
C
OUT-EXT
-OUT
Non-isolated
Point-of-Load
Regulator
Load 2
Typical Application: Single DCM3414x50M53C2yzz in Local Sense Operation, to a non-isolated regulator, and direct to load
DCM
™
in a VIA Package
Page 2 of 22
Rev 1.3
06/2019
DCM3414x50M53C2yzz
Pin Configuration
TOP VIEW
+IN
1
3
5
6
7
8
9
–IN
2
4
+OUT
VDDE
EN
TR
–SENSE
+SENSE
–OUT
DCM in a VIA package - Chassis Mount
TOP VIEW
–IN
2
4
9
8
7
6
5
+IN
1
3
–OUT
+SENSE
–SENSE
TR
EN
VDDE
+OUT
DCM in a VIA package - PCB Mount
Note:
The dot on the VIA housing indicates the location of the control pin 9 (+SENSE pin).
Pin Descriptions
Pin
Number
1
2
3
4
5
6
7
8
9
Signal Name
+IN
–IN
+OUT
–OUT
VDDE
EN
TR
–SENSE
+SENSE
Type
INPUT POWER
INPUT POWER
RETURN
OUTPUT POWER
OUTPUT POWER
RETURN
POWER INPUT
CONTROL INPUT
CONTROL INPUT
CONTROL INPUT
CONTROL INPUT
Positive input power terminal
Negative input power terminal
Positive output power terminal
Negative output power terminal
Function
External power supply for internal controller
Enables and disables DCM. Needs VDDE preapplied
Enables and disables trim functionality. Adjusts output voltage when trim active.
Negative sense pin, required for Remote Sense Operation. In Local Sense
Operation, it can be tied directly to –OUT to achieve better regulation accuracy.
Positive sense pin, required for Remote Sense Operation. In Local Sense
Operation, it can be tied directly to +OUT to achieve better regulation accuracy.
Note:
All control inputs (EN, TR, –SENSE, +SENSE) are referenced to the secondary of the DCM and isolated from the primary.
DCM
™
in a VIA Package
Page 3 of 22
Rev 1.3
06/2019
DCM3414x50M53C2yzz
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 (+IN to –IN)*
Input Voltage Slew Rate
TR to –OUT
EN to –OUT
VDDE to –OUT
–SENSE to –OUT
+OUT to +SENSE
+SENSE to –OUT
Output Voltage (+Out to –Out)
Dielectric withstand (input to output)
C Grade
Internal Operating Temperature
T Grade
M Grade
C Grade
Storage Temperature
T Grade
M Grade
Average Output Current
+ 16 – 50 V input range products guarantees MIL-STD 461E/F & MIL-STD 1275 D/E.
** Applicable only for 16 – 50 V input range products.
*
LVMFM
Comments
Min
-0.5
-0.5
Max
65
52
1
Unit
V
V
V/µs
V
V
V
V
V
V
V
Vdc
C Grade, T Grade
M Grade (continuous absolute maximum input voltage)**
-0.3
-0.3
0
0
0
0
-0.5
1500
-20
-40
-55
-20
-40
-65
3.5
3.5
12
2.225
2.225
62.4
62.4
125
125
125
125
125
125
6.7
°C
°C
°C
°C
°C
°C
A
Figure 1
—
Thermal Specified Operating Area: Max Output Power
Figure 2
—
Electrical Specified Operating Area
vs. Case Temp, Single unit at minimum full load efficiency
DCM
™
in a VIA Package
Page 4 of 22
Rev 1.3
06/2019
DCM3414x50M53C2yzz
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 specified by the product 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
V
OUT-NOM
V
OUT-TRIMMING
Trim range over temp.
Specifies the Low, Nominal and High Trim conditions.
Total output voltage setpoint accuracy for all line
conditions and for all load conditions above 10%
of rated load, with trim inactive and SENSE pins
connected (either at the load for remote sense, or at
the DCM output for local sense)
Total output voltage setpoint accuracy for all line
conditions and for all load conditions above 10%
of rated load, with trim inactive and Sense Pins
floating (Local Sense only)
Total output voltage setpoint accuracy for all line
conditions and for all load conditions above 10%
of rated load, with trim active
Total output voltage setpoint accuracy for all line and
trim conditions, for load conditions below or equal to
10% of rated load
Continuous, V
OUT
≥
48.0 V
Continuous, V
OUT
≤
48.0 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
V
OUT-PP
C
OUT-INT
R
COUT-INT
Over all operating steady-state line, load and trim
conditions, 20 MHz BW, with minimum C
OUT-EXT
Effective value at nominal output voltage
At 1 MHz
90.6
88.9
86.6
275
17
0.17
320
6.67
100
120
1
91.6
147
47.52
28.8
48.0
48.0
48.48
52.8
V
V
8.2
0.4
0.8
1.0
13.8
14.0
W
W
W
W
30.0
0.73
1
16
28
50
25.0
V
A
µF
mΩ
µH
V
OUT
accuracy
%V
OUT-
ACCURACY
0.5
%
V
OUT
accuracy with Sense Pins
floating
%V
OUT-
ACCURACY-SF
1.0
%
V
OUT
accuracy with trim active
%V
OUT-
ACCURACY-TRIM
2.0
%
V
OUT
accuracy light load
Rated output power
Rated output current
Output current limit
Current limit delay
%V
OUT-
ACCURACY-LL
5.0
%
W
A
%
ms
%
%
%
mV
µF
mΩ
P
OUT
I
OUT
I
OUT-LM
t
IOUT-LIM
η
Efficiency
DCM
™
in a VIA Package
Page 5 of 22
Rev 1.3
06/2019
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