Industrial and process control, distributed power, medical, ATE, communications,
defense and aerospace.
For details on proper operation please refer to the:
Design Guide & Applications Manual for Maxi, Mini, Micro Family.
Absolute Maximum Ratings
Parameter
+IN to -IN voltage
PC to -IN voltage
PR to -IN voltage
SC to -OUT voltage
Isolation voltage
IN to OUT
IN to base
OUT to base
Operating Temperature
Storage Temperature
Pin soldering temperature
Mounting torque
Rating
-0.5 to +53
-0.5 to +7.0
-0.5 to +7.0
-0.5 to +1.5
3000
1500
500
-55 to +100
-65 to +125
500 (260)
750 (390)
5 (0.57)
Unit
V
DC
V
DC
V
DC
V
DC
V
RMS
V
RMS
V
RMS
°C
°C
°F (°C)
°F (°C)
in-lbs (N-m)
Test voltage
Test voltage
Test voltage
M-Grade
M-Grade
<5 sec; wave solder
<7 sec; hand solder
6 each
Notes
Product Overview
These DC-DC converter modules use advanced
power processing, control and packaging
technologies to provide the performance,
flexibility, reliability and cost effectiveness of a
mature power component.
High frequency ZCS / ZVS switching provides
high power density with low noise and
high efficiency.
*Derate power to 75% for 9 to 10V
IN
Part Numbering
e.g. V28C12T100BL2
28C
Product Grade Temperatures (°C)
Grade
Operating
Storage
C
=
- 20 to +100
- 40 to +125
T
=
- 40 to +100
- 40 to +125
H
=
- 40 to +100
- 55 to +125
M
=
- 55 to +100
- 65 to +125
B
Output Power
V
OUT
P
OUT
3.3V
50W
5V
50W
12V
100W
15V
100W
24V
100W
28V
100W
36V
100W
48V
100W
Pin Style
Finish
Blank:
Short
Tin/Lead
L:
Long
Tin/Lead
S:
Short ModuMate
Gold
N:
Long ModuMate
Gold
F:
Short RoHS
Gold
G:
Long RoHS
Gold
K:
Extra Long RoHS
Gold
Baseplate
Blank:
Slotted
2:
Threaded
3:
Through-hole
Product Type
V
= Standard
S
= Enhanced
efficiency
(avail.
≤12
V
OUT
only)
Output Voltage
3V3
= 3.3V
5
= 5V
12
= 12V
15
= 15V
24
= 24V
28
= 28V
36
= 36V
48
= 48V
28V Wide Micro Family
Page 1 of 12
Rev 2.6
06/2017
vicorpower.com
800 927.9474
28V Wide Input
Module Family Electrical Characteristics
Electrical characteristics apply over the full operating range of input voltage, output load (resistive) and baseplate temperature, unless otherwise specified.
All temperatures refer to the operating temperature at the center of the baseplate.
MODULE INPUT SPECIFICATIONS
Parameter
Operating input voltage
Input surge withstand
Undervoltage turn-on
Undervoltage turn-off
Overvoltage turn-off / on
Disabled input current
36.3
8.8
8.5
37.8
12
39.6
14
Min
9
Typ
28
Max
36
50
8.9
Unit
V
DC
Notes
From 9 to 10V input available power is reduced to 75%
of max rating
V
DC
V
DC
V
DC
V
DC
mA
PC pin low
<100ms
MODULE OUTPUT SPECIFICATIONS
Parameter
Output voltage set point
Line regulation
Temperature regulation
Power sharing accuracy
Programming range
10
±0.02
±0.002
±2
Min
Typ
Max
±1
±0.20
±0.005
±5
110
Unit
%
%
% / °C
%
%
Notes
Of nominal output voltage. Nominal input; full load; 25°C
Low line to high line; full load
Over operating temperature range
10 to 100% of full load
Of nominal output voltage. For trimming below 90%
of nominal, a minimum load of 10% of maximum
rated power may be required.
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
+OUT to –OUT — Absolute Maximum Ratings
3.3V
5V
8V
12V
15V
24V
28V
36V
48V
-0.5 to 4.7
-0.5 to 7.0
-0.5 to 10.9
-0.5 to 16.1
-0.5 to 20.0
-0.5 to 31.7
-0.5 to 36.9
-0.5 to 47.1
-0.5 to 62.9
Note:
The permissible load current must never be exceeded during normal, abnormal or test conditions. For additional output related application
information, please refer to output connections on page 7.
THERMAL RESISTANCE AND CAPACITY
Parameter
Baseplate to sink; flat, greased surface
Baseplate to sink; thermal pad (P/N 20265)
Baseplate to ambient
Baseplate to ambient; 1000LFM
Thermal capacity
Min
Typ
0.24
0.21
10.9
2.8
48
Max
Unit
°C/Watt
°C/Watt
°C/Watt
°C/Watt
Watt-sec/°C
28V Wide Micro Family
Page 2 of 12
Rev 2.6
06/2017
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800 927.9474
28V Wide Input
Module Family Electrical Characteristics (Cont.)
MODULE CONTROL SPECIFICATIONS
Parameter
Min
Typ
Max
Unit
Notes
Primary Side (PC = Primary Control; PR = Parallel)
PC bias voltage
current limit
PC module disable
PC module enable delay
PC module alarm
PC resistance
PR emitter amplitude
PR emitter current
PR receiver impedance
PR receiver threshold
PR drive capability
Secondary Side (SC = Secondary Control)
SC bandgap voltage
SC resistance
SC capacitance
SC module alarm
1.21
990
1.23
1000
0.033
0
1.25
1010
V
DC
Ω
µF
V
DC
With open trim; referenced to –Sense. See Fig. 7
Referenced to –Sense
0.9
5.7
150
375
2.4
500
2.5
625
2.6
12
1.0
5.9
5.50
1.5
2.3
5.75
2.1
2.6
4
6.00
3.0
2.9
7
0.5
1.1
6.1
V
DC
mA
V
DC
ms
Vavg
MΩ
Volts
mA
Ω
Volts
modules
25°C
Minimum pulse width: 20ns
Without PR buffer amplifier
UV, OV, OT, module fault. See Figs. 3 and 5
See Fig. 3, converter off or fault mode
PR load >30Ω, <30pF
PC current = 1.0mA
PC voltage = 5.5V
Switch must be able to sink
≥4mA.
See Fig. 2
MODULE GENERAL SPECIFICATIONS
Parameter
Isolation test voltage (IN to OUT)*
Isolation test voltage (IN to base)*
Isolation test voltage (OUT to base)*
Isolation resistance
Weight (E, C, T grade)
Weight (H, M grade)
Temperature limiting
Agency approvals
1.9
(52.8)
2.1
(58.7)
100
Min
3000
1500
500
10
2.1
(59.3)
2.3
(65.2)
115
cURus, cTÜVus, CE
2.3
(65.8)
2.5
(71.7)
Typ
Max
Unit
V
RMS
V
RMS
V
RMS
MΩ
ounces
(grams)
ounces
(grams)
°C
See Figs. 3 and 5. Do not operate coverter >100°C.
UL60950-1, EN60950-1, CSA60950-1, IEC60950-1.
With appropriate fuse in series with the +Input
Notes
Complies with reinforced insulation requirements
Complies with basic insulation requirements
Complies with operational insulation requirements
IN to OUT, in to baseplate, out to baseplate
* Isolation test voltage, 1 minute or less.
Note:
Specifications are subject to change without notice.
28V Wide Micro Family
Page 3 of 12
Rev 2.6
06/2017
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800 927.9474
28V Wide Input
MODULE SPECIFIC OPERATING SPECIFICATIONS
3.3V
OUT
, 50W (e.g. S28C3V3C50BL, V28C3V3C50BL)
Parameter
Efficiency
S28C3V3C50BL (enhanced efficiency)
V28C3V3C50BL (standard efficiency)
Ripple and noise
Output OVP set point
Dissipation, standby
Load regulation
Load current
Current limit
Short circuit current
0
15.5
10.6
17.5
17.5
4.14
Min
73.7
72.0
Typ
83.6
73.4
180
4.3
5.2
±0.02
225
4.46
6.2
±0.2
15.15
20.6
20.6
Max
Unit
%
mV
Volts
Watts
%
Amps
Amps
Amps
Output voltage 95% of nominal
Output voltage <250mV
Notes
Nominal input; full load; 25°C
p-p; Nominal input; full load; 20MHz bandwidth
25°C; recycle input voltage or PC to restart (>100ms off)
No load
No load to full load; nominal input
5V
OUT
, 50W (e.g. S28C5C50BL, V28C5C50BL)
Parameter
Efficiency
S28C5C50BL (enhanced efficiency)
V28C5C50BL (standard efficiency)
Ripple and noise
Output OVP set point
Dissipation, standby
Load regulation
Load current
Current limit
Short circuit current
0
10.2
7
11.5
11.5
6.03
Min
79.6
78.5
Typ
83.6
79.5
127
6.25
2.9
±0.02
159
6.47
3.5
±0.2
10
13.5
13.5
Max
Unit
%
mV
Volts
Watts
%
Amps
Amps
Amps
Output voltage 95% of nominal
Output voltage <250mV
Notes
Nominal input; full load; 25°C
p-p; Nominal input; full load; 20MHz bandwidth
25°C; recycle input voltage or PC to restart (>100ms off)
No load
No load to full load; nominal input
12V
OUT
, 100W (e.g. S28C12C100BL, V28C12C100BL)
Parameter
Efficiency
S28C12C100BL (enhanced efficiency)
V28C12C100BL (standard efficiency)
Ripple and noise
Output OVP set point
Dissipation, standby
Load regulation
Load current
Current limit
Short circuit current
0
8.49
5.83
9.58
9.58
13.7
Min
82.0
81.0
Typ
85.0
82.3
200
14.3
6.8
±0.02
250
14.9
7.5
±0.2
8.33
11.3
11.3
Max
Unit
%
mV
Volts
Watts
%
Amps
Amps
Amps
Output voltage 95% of nominal
Output voltage <250mV
Notes
Nominal input; full load; 25°C
p-p; Nominal input; full load; 20MHz bandwidth
25°C; recycle input voltage or PC to restart (>100ms off)
No load
No load to full load; nominal input
28V Wide Micro Family
Page 4 of 12
Rev 2.6
06/2017
vicorpower.com
800 927.9474
28V Wide Input
MODULE SPECIFIC OPERATING SPECIFICATIONS (CONT.)
15V
OUT
, 100W (e.g. V28C15C100BL)
Parameter
Efficiency
Ripple and noise
Output OVP set point
Dissipation, standby
Load regulation
Load current
Current limit
Short circuit current
0
6.8
4.66
7.67
7.67
17.1
Min
79.0
Typ
80.7
200
17.8
7.1
±0.02
250
18.5
10
±0.2
6.67
9.01
9.01
Max
Unit
%
mV
Volts
Watts
%
Amps
Amps
Amps
Output voltage 95% of nominal
Output voltage <250mV
Notes
Nominal input; full load; 25°C
p-p; Nominal input; full load; 20MHz bandwidth
25°C; recycle input voltage or PC to restart (>100ms off)
No load
No load to full load; nominal input
24V
OUT
, 100W (e.g. V28C24C100BL)
Parameter
Efficiency
Ripple and noise
Output OVP set point
Dissipation, standby
Load regulation
Load current
Current limit
Short circuit current
Min
81.3
27.1
Typ
82.3
180
28.1
5.3
±0.02
4.8
4.8
Max
225
29.1
6.2
±0.2
4.17
5.63
5.63
Unit
%
mV
Volts
Watts
%
Amps
Amps
Amps
Notes
Nominal input; full load; 25°C
p-p; Nominal input; full load; 20MHz bandwidth
25°C; recycle input voltage or PC to restart (>100ms off)
No load
No load to full load; nominal input
Output voltage 95% of nominal
Output voltage <250mV
0
4.25
2.91
28V
OUT
, 100W (e.g. V28C28C100BL)
Parameter
Efficiency
Ripple and noise
Output OVP set point
Dissipation, standby
Load regulation
Load current
Current limit
Short circuit current
0
3.64
2.49
4.11
4.11
31.5
Min
79.0
Typ
80.6
160
32.7
7.6
±0.02
200
33.9
8.3
±0.2
3.57
5.35
5.35
Max
Unit
%
mV
Volts
Watts
%
Amps
Amps
Amps
Output voltage 95% of nominal
Output voltage <250mV
Notes
Nominal input; full load; 25°C
p-p; Nominal input; full load; 20MHz bandwidth
25°C; recycle input voltage or PC to restart (>100ms off)
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