MT036A015M080FPT [VICOR]
DC-DC Regulated Power Supply Module, 1 Output, 120W, Hybrid, ROHS COMPLIANT PACKAGE-22;
| 型号： | MT036A015M080FPT |
| 厂家： | 
VICOR CORPORATION |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 120W, Hybrid, ROHS COMPLIANT PACKAGE-22 |
| 文件： | 总13页 (文件大小：1478K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MIL-COTS PRMTM Regulator with Integrated Filter
(MR028B036M012FPT)
Features
• -55°C to 100°C baseplate operation
• Height above board: 0.37 in (9.5 mm)
• Low weight: 2.19 oz (62.1g)
• ZVS buck-boost regulator
• Typical efficiency: 95%
• Vin range: 16.5 – 50 Vdc
(13.9 – 50 Vdc after startup)
• EMI filtering: MIL-STD-461E/F
• Transient protection MIL-STD-704A/E/F
and MIL-STD-1275A/B/D
• 1.3 MHz switching frequency
• Low noise operation
Size:
• High density: up to 78 W/in3
2.19 x 1.91 x 0.37 in
53,7 x 48,6 x 9,5 mm
• Architectural flexibility
Product Overview
The VI BRICK Pre-Regulator Module with
integrated filter is a very efficient non-isolated
regulator capable of both boosting and
bucking a wide range input voltage. It is
specifically designed to provide a controlled
Factorized Bus distribution voltage for
at the Point-of-Load (POL). In addition, the
integrated filter provides compliance to
MIL-STD-1275 and MIL-STD-704 for
(transients) and MIL-STD-461 (EMI).
distribution losses and enabling use of
narrower distribution bus traces. A Military
COTS VI BRICK PRM-VTM chip set can provide
up to 100 A or 120 W.
In FPA systems, the POL voltage is the product
of the Factorized Bus voltage delivered by the
VI BRICK PRM and the "K-factor" (the fixed
voltage transformation ratio) of a downstream
VTM. The PRM controls the Factorized Bus
voltage to provide regulation at the POL.
Because VTMs perform true voltage division
and current multiplication, the Factorized Bus
voltage may be set to a value that is substantially
higher than the bus voltages typically found in
"intermediate bus" systems, reducing
The Military COTS VI BRICK PRM with
integrated filter described in this data sheet
features a unique "Adaptive Loop" compensation
feedback: a single wire alternative to traditional
remote sensing and feedback loops that
enables precise control of an isolated POL
voltage without the need for either a direct
connection to the load or for noise sensitive,
bandwidth limiting, isolation devices in the
feedback path.
powering downstream VI BRICK Current
Multiplier Modules — fast, efficient, isolated,
low noise Point-of-Load (POL) converters. In
combination, VI BRICK PRMs and VTMsTM form
a complete DC-DC converter subsystem
offering all of the unique benefits of Vicor’s
Factorized Power Architecture (FPA): high
density and efficiency; low noise operation;
architectural flexibility; extremely fast transient
response; and elimination of bulk capacitance
Absolute Maximum Ratings
Parameter
Values
Unit
Notes
+In to -In
PC to -In
PR to -In
IL to -In
VC to -In
+Out to -Out
SC to -Out
VH to -Out
OS to -Out
CD to -Out
SG to -Out
Continuous output current
Continuous output power
Operating temperature
Storage temperature
-1.0 to 60.0
-0.3 to 6.0
-0.3 to 9.0
-0.3 to 6.0
-0.3 to 18.0
-0.3 to 59
-0.3 to 3.0
-0.3 to 9.5
-0.3 to 9.0
-0.3 to 9.0
100
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mA
Adc
W
Continuous
3.3
120
-55 to +100
-65 to +125
°C
°C
M-Grade; baseplate
M-Grade
Note: Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or any other conditions
in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device reliability.
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 1 of 12
SPECIFICATIONS
PART NUMBERING
MR
028
B
036 M
Nominal
Factorized
Bus Voltage
012
Output
Power
Designator
(=POUT /10)
F
P T
Input
Voltage
Designator
Package
Size
Pre-Regulator
Module
Product Grade Temperatures (°C)
Baseplate
Pin Style
P = Through hole
Grade
Operating
Storage
F = Slotted flange
M =
-55 to +100 -65 to +125
(Conditions are at 28 Vin, 36 Vf [a], full load, and 25°C baseplate unless otherwise specified)
Input Specifications
Parameter
Min
Typ
Max
Unit
Notes
Input voltage range
Input dV/dt
16.5[b]
28
50
1
16.1
Vdc
V/µs
Vdc
Vdc
Vdc
Vdc
mA
Adc
mA p-p
W
Input undervoltage turn-on
Input undervoltage turn-off
Input overvoltage turn-on
Input overvoltage turn-off
Input quiescent current
Input current
Input reflected ripple current
No load power dissipation
Internal input capacitance
15.9
13.9
52.9
53.9
0.5
Increases linearly to 17 V max at 100°C
50.5
55.4
1
PC low
4.5
240
2.75
5
See Figures 3
5.8
µF
Ceramic
Input filter circuit
Figure 12 CIN
50 ms per MIL-STD-1275A/B/D
70 µs per MIL-STD-1275A/B/D
20 ms per MIL-STD-704A
Recommended external capacitance (CIN)
Transient Immunity
1,000
µF
100
250
70
80
50
Vdc
Vdc
Vdc
Vdc
Vdc
100 ms per D0-160 E, sec.16, Cat. z
12.5 ms per Mil-STD-704 E/F
[a] Vf is factorized bus voltage (see Figure 16).
[b] Will operate down to 13.9 V after start up ≥ 16 V.
(Conditions are at 28 Vin, 36 Vf [a], full load, and 25°C baseplate unless otherwise specified)
Output Specifications
Parameter
Min
Typ
Max
Unit
Note
Output voltage range
Output power
26
0
36
50
120
Vdc
W
Factorized Bus voltage (Vf) set by ROS
Internal voltage drop
Output current
DC current limit
Average short circuit current
Set point accuracy
0.4
Vdc
Adc
Adc
A
0
3.5
3.33
4.4
1.25
3.9
0.125
1.5
IL pin floating
Auto recovery
%
Line regulation
Load regulation
Load regulation (at VTM output)
Efficiency
0.1
0.1
1.0
0.2
0.2
2.0
%
%
%
Low line to high line
No CD resistor
Adaptive Loop
Full load
93
56
95.6
%
Vdc
See Figure 4,5 & 6
Output overvoltage set point
Output ripple voltage
No external bypass
With 10 µF capacitor
Switching frequency
Output turn-on delay
From application of power
From PC pin high
59.4
1.8
0.6
1.3
2.7
0.9
1.45
%
%
MHz
Factorized Bus, see Figure 16
Factorized Bus, See Figure 17
1.2
94
100
5
144
47
ms
µs
µF
µF
See Figure 1
See Figure 2
Ceramic
Internal output capacitance
Factorized Bus capacitance
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 2 of 12
SPECIFICATIONS (CONT.)
EMI
Standard
Test Procedure
Notes
MIL-STD-461E/F
Conducted Emissions
CE101-4
CE102-1
CS101-1
CS114-1
Navy ASW & Army Aircraft, Curve #2 (28 Vdc)
Basic curve, for all applications
Conducted Susceptability
Curve #2, for all applications (28 Vdc)
Conducted suceptibility, bulk cable injection,
10 KHz - 200 MHz, Curve #4
CS115-1
Conducted suceptibility, bulk cable injection, impulse
excition, all applications
INPUT WAVEFORMS & TEST CIRCUIT
Figure 1 — Vf and PC response from power up
Figure 2 — Vf turn-on waveform with inrush current – PC enabled at full load,
28 Vin, electronic load set @constant R.
Figure 3 — Input reflected ripple current at full load and 28 Vin
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 3 of 12
SPECIFICATIONS (CONT.)
EFFICIENCY GRAPHS
Efficiency vs. Output Current
Efficiency vs. Output Current
100
95
90
85
80
75
70
65
60
100
95
90
85
80
75
70
65
60
VIN
16V
28V
50V
VIN
16V
28V
50V
0.25 0.50 0.76 0.99 1.26 1.51 1.74 2.02 2.26 2.51
0.33 0.67 0.99 1.32 1.64 1.99 2.30 2.64 2.97 3.31
Output Current (A)
Output Current (A)
Figure 4 — Efficiency vs. output current at 48 Vf
Figure 5 — Efficiency vs. output current at 36 Vf
Efficiency vs. Output Current
100
95
90
85
80
75
70
VIN
16V
28V
50V
65
0.34 0.68 0.98 1.33 1.65 1.98 2.31 2.64 2.97 3.30
Output Current (A)
Figure 7 — Conducted Noise (CE 102); MR028B036M012FPT with VTM,
Figure 6 — Efficiency vs. output current at 26 Vf
28 Vdc input, 12 Vdc output, 90% load.
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 4 of 12
SPECIFICATIONS (CONT.)
Shut Down Time vs. Overvoltage
400
350
300
250
200
150
100
50
Input Voltage
100 Vdc
Transient Voltage
clamped to 50 Vdc
28 V Output
0
107
100
90
80
in (V)
70
60
V
Figure 8 — Transient immunity; MR028B036M012FPT output response
Figure 9 — Shutdown Time vs. Overvoltage
to an input transient.
Figure 10 — Inrush Limiting
CY1
ON/OFF
-OUT
-OUT
+IN
+OUT
-OUT
+OUT
-OUT
EMI
GND
CIN-
L
O
A
D
+ CIN
CIN+
TM
VC
PC
+OUT
VTM
-IN
+OUT
10 K
CIL
C1
–
+
PR
NC
IL
TM
PC
VC
CD
NC
OS
SG
SC
VH
Vin
RCD
ROS
+IN
-IN
CY2
Figure 11 — Recommended Circuit for EMI
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 5 of 12
SPECIFICATIONS (CONT.)
OUTPUT WAVEFORMS
Figure 13 — Transient response; PRM alone 16 Vin, 0-3.3-0A no load
Figure 12 — Transient response; PRM alone 28 Vin, 0-3.3-0A, no load
capacitance, local loop
capacitance, local loop
Figure 15 — PC during fault – frequency will vary as a function of line voltage
Figure 14 — Transient response; PRM alone 50 Vin, 0-3.3-0A no load
capacitance, local loop.
Figure 16 — Output ripple 36 Vf, full load no bypass capacitance
Figure 17 — Output ripple 36 Vf, full load 10 µF bypass capacitance
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 6 of 12
SPECIFICATIONS (CONT.)
General Specifications
Parameter
Min
Typ
Max
Unit
Notes
MTBF
MIL-HDBK-217F
2,731,720
491,573
385,172
CE Mark
hrs
hrs
hrs
25°C, GB
50°C, NS
65°C, AIC
Agency approvals
Low voltage directive (10 A external fuse
required), EN60950-1
See Mechanical Drawings, Figures 20 & 21
Mechanical parameters
Weight
2.19 / 62,1
oz/g
Dimensions
Length
Width
Height
2.19 / 55,7
1.91 / 48,6
0.37 / 9,5
in / mm
in / mm
in / mm
Thermal
Over temperature shut down
Thermal capacity
Baseplate to ambient
Baseplate to ambient; 1000 LFM
Baseplate to sink; flat, greased surface
Baseplate to sink; thermal pad
130
135
23.8
8.8
3.0
0.40
0.36
140
°C
junction temperature
Ws/°C
°C/W
°C/W
°C/W
°C/W
Auxiliary Pins
Parameter
Min
Typ
Max
Unit
Notes
CIN+ CIN–
EMI GND
ON / OFF
VC (VTM Control)
Pulse width
Peak voltage
8
12
14
18
18
ms
V
Referenced to –Out
PC (Primary Control)
DC voltage
Module disable voltage
Module enable voltage
Disable hysteresis
4.8
2.3
5.0
2.4
2.5
100
5.2
2.6
Vdc
Vdc
Vdc
mV
Referenced to –In
Referenced to –In
Source only after start up; not to be used for aux.
supply; 100 kĹ min. load impedance to assure start up.
Current limit
1.75
100
1
1.90
1.05
mA
µs
µs
Enable delay time
Disable delay time
IL (Current Limit Adjust)
Voltage
0.95
8.7
1
15
V
%
Accuracy
Based on DC current limit set point
Terminate with 10 kĹ to SG
PR
VH (Auxiliary Voltage)
Range
Regulation
Typical internal bypass C=0.1 µF
Maximum external C=0.1 µF, referenced to SG
9.0
0.04
9.3
5
Vdc
%/mA
mA p
Current
SC (Secondary Control)
Voltage
1.23
1.24
0.22
1.25
0.7
Vdc
µF
µF
Referenced to SG
Internal capacitance
External capacitance
OS (Output Set)
Set point accuracy
Reference offset
CD (Compensation Device)
External resistance
1.5
4
%
mV
Includes 1% external resistor
20
Ω
Omit resistor for regulation at output of PRM
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 7 of 12
PIN / CONTROL FUNCTIONS
+In / -In DC Voltage Ports
VH – Auxiliary Voltage
The VI BRICK maximum input voltage should not be exceeded. PRMs will
turn on when the input voltage rises above its undervoltage lockout.
PC will toggle indicating an out of bounds condition.
VH is a gated (e.g. mirrors PC), non-isolated, nominally 9 Volt, regulated
DC voltage (see “Auxiliary Pins” specifications, on Page 7) that is
referenced to SG. VH may be used to power external circuitry having a
total current consumption of no more than 5 mA under either transient
or steady state conditons including turn-on.
ON / OFF Pin
The module is enabled when the ON / OFF pin is connected to CIN. ON /
OFF pin can be connected to a 4.7 k resistor to -OUT pin to enable the
module. The module is disabled when the ON / OFF pin is open circuit
(floating).
SC – Secondary Control
The load voltage may be controlled by connecting a resistor or voltage
source to the SC port referenced to SG. The slew rate of the output
voltage may be controlled by controlling the rate-of-rise of the voltage at
the SC port (e.g., to limit inrush current into a capacitive load).
+Out / -Out Factorized Voltage Output Ports
These ports provide the Factorized Bus voltage output. The –Out port is
connected internally to the –In port through a current sense resistor. The
PRM has a maximum power and a maximum current rating and is
protected if either rating is exceeded. Do not short –Out to –In.
SG – Signal Ground
This port provides a low inductance Kelvin connection to –In and should be
used as reference for the OS, CD, SC,VH and IL ports.
VC – VTM Control
OS – Output Set
The VTM Control (VC) port supplies an initial VCC voltage to downstream
VTMs, enabling the VTMs and synchronizing the rise of the VTM output
voltage to that of the PRM. The VC port also provides feedback to the
PRM to compensate for voltage drop due to the VTM output resistance.
The PRM’s VC port should be connected to the VTM VC port. A PRM VC
port can drive a maximum of two (2) VTM VC ports.
The application-specific value of the Factorized Bus voltage (Vf) is set by
connecting a resistor between OS and SG. Resistor value selection is shown
in Table 1 on Page 9, and described on Page 10. If no resistor is connected,
the PRM output will be approximately one volt.
CD – Compensation Device
Adaptive Loop control is configured by connecting an external resistor
between the CD port and SG. Selection of an appropriate resistor value
(see Equation 2 on Page 9 and Table 1 on Page 8) configures the PRM to
compensate for voltage drops in the equivalent output resistance of the
VTM and the PRM-VTM distribution bus. If no resistor is connected to CD,
the PRM will be in Local Loop mode and will regulate the
PC – Primary Control
The PRM voltage output is enabled when the PC pin is open circuit
(floating). To disable the PRM output voltage, the PC pin is pulled low.
Open collector optocouplers, transistors, or relays can be used to control
the PC pin. When using multiple PRMs in a high power array, the PC ports
must be tied together to synchronize their turn on. During an abnormal
condition the PC pin will pulse (Fig.15) as the PRM initiates a restart cycle.
This will continue until the abnormal condition is rectified. The PC should
not be used as an auxiliary voltage supply, nor should it be switched at a
rate greater than 1 Hz.
+Out / –Out voltage to a fixed value.
TM – Factory Use Only
IL – Current Limit Adjust
ON/OFF
-OUT
EMI
GND
-OUT
CIN-
The PRM has a preset, maximum, current limit set point. The IL port may
be used to reduce the current limit set point to a lower value. The IL port
must be connected to a 0.01 µF capacitor to set pin in order to prevent the
noise from interfering PRM during the transient surge. See “adjusting
current limits” on page 11.
CIN+
+OUT
+OUT
-IN
PR
NC
IL
TM
PC
VC
CD
NC
OS
SG
SC
VH
+IN
PR – Factory use only
Figure 18— MR028B036M012FPT pin configuration (viewed from pin side)
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 8 of 12
APPLICATION INFORMATION
Overview of Adaptive Loop Compensation
The VI BRICK’s bi-directional VC port :
Adaptive Loop compensation, illustrated in Figure 11, contributes to the
bandwidth and speed advantage of Factorized Power. The PRM monitors
its output current and automatically adjusts its output voltage to
compensate for the voltage drop in the output resistance of the VTM. ROS
sets the desired value of the VTM output voltage, Vout; RCD is set to a
value that compensates for the output resistance of the VTM (which,
ideally, is located at the point of load). For selection of ROS and RCD, refer
to Table 1 below or Page 10.
1. Provides a wake up signal from the PRM to the VTM that
synchronizes the rise of the VTM output voltage to that of the PRM.
2. Provides feedback from the VTM to the PRM to enable the PRM to
compensate for the voltage drop in VTM output resistance, RO.
CY1
ON/OFF
-OUT
-OUT
+IN
+OUT
-OUT
+OUT
-OUT
EMI
GND
CIN-
L
O
A
D
+ CIN
CIN+
TM
VC
PC
+OUT
VTM
-IN
+OUT
10 K
C1
–
+
PR
NC
IL
TM
PC
VC
CD
NC
OS
SG
SC
VH
Vin
RCD
ROS
C
IL
+IN
-IN
CY2
Part
C1
CIN
Description
Value
10 µF / 250 V
1000 µF / 63 V
0.01 µF
Recommended input capacitor
Recommended external capacitor
Filtering capacitor
CIL
CY1, CY2
Y-type capacitor
4700 pF
Figure 19 — With Adaptive Loop control, the output of the VTM is regulated over the load current range with only a single interconnect between the PRM and
VTM and without the need for isolation in the feedback path.
Desired Load Voltage (Vdc)
VI BRICK VTM P/N(1) Max VTM Output Current (A)(2)
ROS (kΩ)(3)
2.70
2.24
2.39
1.98
2.70
2.16
2.14
2.14
2.39
2.87
2.39
2.04
2.39
1.78
RCD (Ω)(3)
34.8
41.2
32.4
38.3
23.2
37.4
39.2
41.2
21.5
34.8
38.3
41.2
34.8
45.3
1.0
1.2
1.5
1.8
2.0
3.3
5.0
10
12
15
24
28
MT036A011M100FP
MT036A011M100FP
MT036A015M080FP
MT036A015M080FP
MT036A022M055FP
MT036A030M040FP
MT036A045M027FP
MT036A090M013FP
MT036A120M010FP
MT036A180M007FP
MT036A240M005FP
MT036A240M005FP
MT036A360M003FP
MT036A360M003FP
100
100
80
80
55
40
27
13.3
10
6.7
5.0
5.0
3.3
3.3
36
48
Note:
(1) See Table 2 on Page 10 for nominal Vout range and K factors.
(2) See “PRM output power vs. VTM output power” on Page 11
(3) 1% precision resistors recommended
Table 1 — Configure your Chip Set using the VI BRICK PRM.
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 9 of 12
APPLICATION INFORMATION
Output Voltage Setting with Adaptive Loop
Output Voltage Trimming (optional)
The equations for calculating ROS and RCD to set a VTM output
voltage are:
After setting the output voltage from the procedure above the output
may be margined down (26 Vf min) by a resistor from SC-SG using this
formula:
69800
10000 Vfd
RdΩ =
ROS
=
=
VL • 0.8395
K
(1)
(2)
(
) –
1
Vfs - Vfd
Where Vfd is the desired factorized bus and Vfs is the set factorized bus.
A low voltage source can be applied to the SC port to margin the load
voltage in proportion to the SC reference voltage.
68404
ROS
RCD
+ 1
An external capacitor can be added to the SC port as shown in Figure 19
to control the output voltage slew rate for soft start.
VL = Desired load voltage
VOUT = VTM output voltage
K = VTM transformation ratio
Nominal Vout
Range (Vdc)
VTM
K Factor
(available from appropriate VTM data sheet)
Vf = PRM output voltage, the Factorized Bus (see Figure 19)
↔
↔
↔
↔
↔
↔
↔
↔
↔
↔
↔
↔
0.8
1.1
1.6
2.0
1/32
1/24
1/16
1/12
1/8
1/6
1/5
1/4
1/3
1/2
2/3
1
RO = VTM output resistance
(available from appropriate VTM data sheet)
1.7
3.1
IL = Load Current
2.2
4.1
(actual current delivered to the load)
3.3
6.2
4.3
8.3
5.2
10.0
12.5
16.6
25.0
33.3
50.0
6.5
8.7
13.0
17.4
26.0
Table 2 — 036 input series VTM K factor selection guide
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 10 of 12
APPLICATION NOTES
OVP – Overvoltage Protection
Adjusting Current Limit
The output Overvoltage Protection set point of the MR028B036M012FPT
is factory preset for 56 V. If this threshold is exceeded the output shuts
down and a restart sequence is initiated, also indicated by PC pulsing.
If the condition that causes OVP is still present, the unit will again shut
down. This cycle will be repeated until the fault condition is removed.
The OVP set point may be set at the factory to meet unique high voltage
requirements.
The current limit can be lowered by placing an external resistor between
the IL and SG ports (see Figure 21 for resistor values). With the IL port
open-circuit, the current limit is preset to be within the range specified in
the output specifications table on Page 2.
100.00
10.00
1.00
PRM Output Power Versus VTM Output Power
As shown in Figure 20, the MR028B036M012FPT is rated to deliver 3.3 A
maximum, when it is delivering an output voltage in the range from 26 V
to 36 V, and 120 W, maximum, when delivering an output voltage in the
range from 36 V to 50 V. When configuring a PRM for use with a specific
VTM, refer to the appropriate VTM data sheet. The VTM input power can
be calculated by dividing the VTM output power by the VTM efficiency
(available from the VTM data sheet). The input power required by the VTM
should not exceed the output power rating of the PRM.
0.5
1
1.5
2
2.5
3
3.5
4.00
Desired PRM™ Module Output Current Limit (A)
3.80
3.60
3.40
3.20
3.00
Figure 21 — Calculated external resistor value for adjusting current limit, actual
value may vary.
- 0.066 A / V
Input Fuse Recommendations
2.80
Safe Operating
2.60
A fuse should be incorporated at the input to the PRM, in series with the
+In port. A fast acting fuse, NANO2 FUSE 451/453 Series 10 A 125 V, or
equivalent, may be required to meet certain safety agency Conditions of
Acceptability. Always ascertain and observe the safety, regulatory, or other
agency specifications that apply to your specific application. For agency
approvals and fusing conditions, click on the link below:
Area
2.40
2.20
2.00
1.80
~
~
0
20 22 24
28
32
34
36
40
44
46
48
50
52 54 56
26
30
38
42
http://www.vicorpower.com/technical_library/technical_documentation/quality_and_
certification/safety_approvals/
Factorized Bus Voltage (V )
F
Figure 20 — MR028B036M012FPT rating based on Factorized Bus voltage
The Factorized Bus voltage should not exceed an absolute limit of 50 V,
including steady state, ripple and transient conditions. Exceeding this limit
may cause the internal OVP set point to be exceeded.
Application Notes
For PRM and VI BRICK application notes on soldering, board layout, and
system design please click on the link below:
http://www.vicorpower.com/technical_library/application_information/
Applications Assistance
Please contact Vicor Applications Engineering for assistance,
1-800-927-9474, or email at apps@vicorpower.com.
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 11 of 12
MECHANICAL DRAWINGS
Baseplate - Slotted Flange
Figure 22 —Module outline
Recommended PCB Pattern
(Component side shown)
Figure 23 —PCB mounting specifications
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
Page 12 of 12
Warranty
Vicor products are guaranteed for two years from date of shipment against defects in material or workmanship when in
normal use and service. This warranty does not extend to products subjected to misuse, accident, or improper application
or maintenance. Vicor shall not be liable for collateral or consequential damage. This warranty is extended to the original
purchaser only.
EXCEPT FOR THE FOREGOING EXPRESS WARRANTY, VICOR MAKES NO WARRANTY, EXPRESS OR IMPLIED, INCLUDING,
BUT NOT LIMITED TO, THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Vicor will repair or replace defective products in accordance with its own best judgement. For service under this warranty,
the buyer must contact Vicor to obtain a Return Material Authorization (RMA) number and shipping instructions. Products
returned without prior authorization will be returned to the buyer. The buyer will pay all charges incurred in returning
the product to the factory. Vicor will pay all reshipment charges if the product was defective within the terms of this
warranty.
Information published by Vicor has been carefully checked and is believed to be accurate; however, no responsibility is
assumed for inaccuracies. Vicor reserves the right to make changes to any products without further notice to improve
reliability, function, or design. Vicor does not assume any liability arising out of the application or use of any product or
circuit; neither does it convey any license under its patent rights nor the rights of others. Vicor general policy does not
recommend the use of its components in life support applications wherein a failure or malfunction may directly threaten
life or injury. Per Vicor Terms and Conditions of Sale, the user of Vicor components in life support applications assumes
all risks of such use and indemnifies Vicor against all damages.
Vicor’s comprehensive line of power solutions includes high density AC-DC and
DC-DC modules and accessory components, fully configurable AC-DC and DC-DC
power supplies, and complete custom power systems.
Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for
its use. Vicor components are not designed to be used in applications, such as life support systems, wherein a failure or
malfunction could result in injury or death. All sales are subject to Vicor’s Terms and Conditions of Sale, which are available
upon request.
Specifications are subject to change without notice.
Intellectual Property Notice
Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent
applications) relating to the products described in this data sheet. Interested parties should contact Vicor's
Intellectual Property Department.
The products described on this data sheet are protected by the following U.S. Patents Numbers:
5,945,130; 6,403,009; 6,710,257; 6,788,033; 6,940,013; 6,969,909; 7,038,917; 7,154,250; 7,166,898;
7,187,263; 7,202,646; 7,361,844; 7,368,957; RE40,072; D496,906; D506,438; D509,472; and for use under
U.S. Pat. Nos. 6,975,098 and 6,984,965
Vicor Corporation
25 Frontage Road
Andover, MA, USA 01810
Tel: 800-735-6200
Fax: 978-475-6715
email
Customer Service: custserv@vicorpower.com
Technical Support: apps@vicorpower.com
Pre-Regulator Module
MR028B036M012FPT
vicorpower.com
Rev. 1.4
8/2011
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