Industrial and process control, distributed power, medical, ATE, communications,
defense, aerospace.
For details on proper operation please refer to the:
Design Guide & Applications Manual for Maxi, Mini, Micro Family.
Absolute Maximum Ratings
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.
*10-36V
DC
input range for 3.3, 6.5, 8, 36 and 48V
outputs. All others derate power to 75% for
V
IN
9 – 10V.
Part Numbering
e.g. V28A12T200BL2
28A
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
150W
5V
175W
12V
200W
15V
200W
24V
200W
28V
200W
36V
200W
48V
200W
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
6.5
= 6.5V
8
= 8V
12
= 12V
15
= 15V
24
= 24V
28
= 28V
36
= 36V
48
= 48V
28V Wide Maxi Family
Page 1 of 12
Rev 3.0
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
7.8
36.3
8.75
8.1
37.8
12
Min
9
Typ
28
Max
36
50
8.9
8.4
39.6
14
Unit
V
DC
V
DC
V
DC
V
DC
V
DC
mA
PC pin low
<100ms
Notes
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.
Externally Applied
Externally Applied
Externally Applied
Externally Applied
Externally Applied
Externally Applied
Externally Applied
Externally Applied
Externally Applied
Externally Applied
+OUT to -OUT, +Sense to -OUT – Absolute Maximum Ratings
3.3V
5V
6.5V
8V
12V
15V
24V
28V
36V
48V
-0.5 to 4.7
-0.5 to 7.0
-0.5 to 9.0
-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 47.2
-0.5 to 62.9
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
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 20263)
Baseplate to ambient
Baseplate to ambient; 1000LFM
Thermal capacity
Min
Typ
0.08
0.07
4.9
1.1
165
Max
Unit
°C / Watt
°C / Watt
°C / Watt
°C / Watt
Watt-sec/°C
28V Wide Maxi Family
Page 2 of 12
Rev 3.0
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
During normal operation
Switch must be able to sink
≥4mA.
See Fig. 2
MODULE GENERAL SPECIFICATIONS
Parameter
Remote sense (total drop)
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)
6.5
(184.3)
7.4
(209.3)
100
3000
1500
500
10
7.3
(207.5)
8.2
(232.5)
115
cURus, cTÜVus, CE
8.1
(230.7)
9.0
(255.7)
Min
Typ
Max
0.5
Unit
V
DC
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
0.25V per leg (sense leads must be connected to
respective, output terminals)
Complies with reinforced insulation requirements
Complies with basic insulation requirements
Complies with operational insulation requirements
IN to OUT, IN to baseplate, OUT to baseplate
Temperature limiting
Agency approvals
* Isolation test voltage, 1 minute or less.
Note:
Specifications are subject to change without notice.
28V Wide Maxi Family
Page 3 of 12
Rev 3.0
06/2017
vicorpower.com
800 927.9474
28V Wide Input
MODULE SPECIFIC OPERATING SPECIFICATIONS
3.3
V
OUT
, 150W (e.g. S28A3V3C150BL, V28A3V3C150BL)
Parameter
Efficiency
S28A3V3C150BL (enhanced efficiency)
V28A3V3C150BL (standard efficiency)
Ripple and noise
Output OVP set point
Dissipation, stand-by
Load regulation
Load Current
Current limit
Short circuit current
Min
78.5
77.3
4.14
Typ
83.7
78.6
80
4.30
11.4
±0.02
52.3
52.3
Max
Unit
%
100
4.46
12.7
±0.2
45.45
61.5
61.5
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
46.4
31.8
5
V
OUT
, 175W (e.g. S28A5C175BL, V28A5C175BL)
Parameter
Efficiency
S28A5C175BL (enhanced efficiency)
V28A5C175BL (standard efficiency)
Ripple and noise
Output OVP set point
Dissipation, stand-by
Load regulation
Load Curent
Current limit
Short circuit current
Min
78.6
77.0
6.03
Typ
82.0
78.6
280
6.25
14.4
±0.02
40.3
40.3
Max
Unit
%
350
6.47
15.5
±0.2
35
49.0
47.3
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
35.7
24.5
6.5
V
OUT
, 200W (e.g. S28A6V5C200BL, V28A6V5C200BL)
Parameter
Efficiency
S28A6V5C200BL (enhanced efficiency)
V28A6V5C200BL (standard efficiency)
Ripple and noise
Output OVP setpoint
Dissipation, standby
Load regulation
Output Current
Current limit
Short circuit current
Min
80.0
78.5
7.7
Typ
83.0
79.7
275
7.98
11.6
±0.02
35.4
35.4
Max
Unit
%
344
8.26
12.2
±0.2
30.77
41.6
41.6
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
31.4
21.5
8
V
OUT
, 200W (e.g. S28A8C200BL, V28A8C200BL)
Parameter
Efficiency
S28A8C200BL (enhanced efficiency)
V28A8C200BL (standard efficiency)
Ripple and noise
Output OVP setpoint
Dissipation, standby
Load regulation
Output Current
Current limit
Short circuit current
Min
80.5
79.5
9.36
Typ
83.5
80.9
325
9.7
15.6
±0.02
28.8
28.8
Max
Unit
%
407
10.1
16.5
±0.2
25
33.8
33.8
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
25.5
17.5
28V Wide Maxi Family
Page 4 of 12
Rev 3.0
06/2017
vicorpower.com
800 927.9474
28V Wide Input
MODULE SPECIFIC OPERATING SPECIFICATIONS (CONT.)
12
V
OUT
, 200W (e.g. S28A12C200BL, V28A12C200BL)
Parameter
Efficiency
S28A12C200BL (enhanced efficiency)
V28A12C200BL (standard efficiency)
Ripple and noise
Output OVP set point
Dissipation, stand-by
Load regulation
Load Current
Current limit
Short circuit current
Min
83.5
81.0
13.7
Typ
85.5
83.0
280
14.3
11.0
±0.02
19.2
19.2
Max
Unit
%
350
14.9
12.2
±0.2
16.67
22.6
22.6
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
17.0
11.6
15
V
OUT
, 200W (e.g. V28A15C200BL)
Parameter
Efficiency
Ripple and noise
Output OVP set point
Dissipation, stand-by
Load regulation
Load Current
Current limit
Short circuit current
Min
82.2
17.1
Typ
84.5
220
17.8
12.7
±0.02
15.3
15.3
Max
275
18.5
13.7
±0.2
13.33
20.6
20.6
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
13.5
9.31
24
V
OUT
, 200W (e.g. V28A24C200BL)
Parameter
Efficiency
Ripple and noise
Output OVP set point
Dissipation, stand-by
Load regulation
Load Current
Current limit
Short circuit current
Min
82.8
27.1
Typ
86.0
315
28.1
12.3
±0.02
9.6
9.6
Max
394
29.1
13.5
±0.2
8.33
11.3
11.3
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)
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