MVAC400 Series
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400W 3" x 5" High Density AC-DC Power Supply Converter
ORDERING GUIDE
Main Output Fan Output Aux Output
(V1)
(V2)
(V3)
12V
24V
50V
12V
250W
400W @ 250LFM
12V
5V
24V
50V
24V
12V
12V
Optional cover kit assembly; see MVAC-COVER datasheet for details.
Model Number
FEATURES
IEC60601 Ed 3 medical (2 X MOPP Pri-Sec)
EN60950 ITE safety approved
400W compact high density
Natural Convection Cooling
MVAC400-12AF
MVAC400-24AF
MVAC400-48AF
MVAC400-12AFD
MVAC400-24AFD
MVAC400-48AFD
MVAC400-24AFT*
MVAC400-12AFR*
MVAC400-12AFT*
MVAC-COVER
Refer to page 2 for current sharing details for MVAC400-xxAFD and MVAC400-xxAFR models.
* CCC Certification is not available for these models.
3" x 5" standard footprint
INPUT CHARACTERISTICS
High efficiency up to 94%
Parameter
Remote sense
Input Voltage Operating Range
Remote On/Off, Power OK
Isolated 12V@1A fan output
Input Frequency
Turn-on Input Voltage
Turn-off Input Voltage
Input Current
No Load Input Power7
Inrush Current
Power Factor
Isolated 5V@2A standby output
OUTPUT CHARACTERISTICS
RoHS compliant
Model Number
Universal AC input with active PFC
Less than 1U high – 1.4"
Convection cooled operation up to 250W
Active inrush protection
Forced Air Cooling
Conditions
Single phase
DC
Input rising
Input falling
90Vac input, full load all outputs
(PS_ON = OFF, 5V_Aux = 0A)
At 264Vac, at 25°C cold start
At 230Vac, full load
Main Output
Voltage (V1)
12V
24V
50V
Load Current
Current sharing option
MVAC400-12AFx
MVAC400-24AFx
MVAC400-48AFx
DESCRIPTION
MAIN OUTPUT CHARACTERISTICS (ALL MODELS)
The MVAC400 series switching power supplies
utilize advanced component and circuit
technologies to deliver high efficiency. Designed
for medical, computing, communications, telecom
and other OEM applications to satisfy 1U height
design considerations, the MVAC400 Series
measures only 3.0" x 5.0" x 1.40". All models
offer universal AC input with active power factor
correction (PFC) and compliance to worldwide
safety and EMC standards.
Parameter
Transient Response9
Settling Time to 1% of Nominal
Turn On Delay
Output Voltage Rise
Output Holdup
Temperature Coefficient
Ripple Voltage & Noise1
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0 to 33.3A
0 to 16.7A
0 to 8.0A
Maximum Load
Capacitance
0 to 2200µF
0 to 470µF
0 to 150µF
Min.
90
127
47
80
70
Typ.
115/230
50/60
1.5
15
0.98
Line, Load, Cross
Regulation6
± 1%
± 1%
± 1%
Conditions
50% load step, 1A/µsec slew rate
Typ.
After application of input power
Monotonic5
120Vac/60Hz, full load
Hot Swap Transients10
Units
Vac
Vdc
Hz
Vac
A
W
Apk
Typical Efficiency
@230Vac
93%
93%
94%
Max.
±5
500
3
50
20
Compensates for up to 0.5V of lead drop with
remote sense connected. Protected against
short circuit and reverse connection.
All outputs remain in regulation
Remote Sense
Max.
264
300
63
90
80
5.5
2.0
Units
%
µsec
sec
msec
0.02
1
%/°C
%
500
mV
± 10
%
AUXILIARY OUTPUT CHARACTERISTICS (ALL MODELS)
Auxiliary Output
Fan (V2)
Aux (V3)
Aux Output
Voltage8
12V
5V
Load Current
Load Capacitance
0 to 1A
0 to 2A
0 to 220µF
0 to 220µF
Line, Load, Cross
Regulation3
± 10%
± 5%
Ripple Voltage &
Noise1
2%
1%
Available now at
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CB
For full details go to
www.murata-ps.com/rohs
Test Certificate
and Test Report
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MVAC400.B02 Page 1 of 8
MVAC400 Series
400W 3" x 5" High Density AC-DC Power Supply Converter
ENVIRONMENTAL CHARACTERISTICS
Parameter
Storage Temperature Range
Conditions
See power rating curves
Start up
Non-condensing
Operating Temperature Range
Operating Humidity
Operating Altitude
MTBF
Min.
Typ.
-40
-10
-20
10
-200
474K
Complies
Complies
Complies to levels of IEC721-3-2
Max.
85
70
Units
95
5000
%
m
Hours
Max.
125
7.5
130
150
Units
%
V
Telcordia SR-332 M1C3 @25°C
Operating, MIL-HBK-810E
Non-operating, MIL-HBK-810E
IEC-68-2-27 standard
IEC60601-1 (Ed. 3) – CB Cert and Report
ANSI/AAMI ES60601-1 (2005+C1:09+A2:10)
CAN/CSA 22.2 No. 60601-1 (2008) 3rd Edition
EN60601-1:2006+CORR:2010
UL60950-1, 2nd Edition, 2011-12-19
CSA22.2 No.60950-1-07, 2nd Edition, 2001-12.
EN60950-1:2006+A11:2009/A1/2010/A12:2011
IEC 60950 (ed.2), IEC60950 (ed.2); am1
CE Marking per LVD
2 years
3.0" x 5.0" x 1.4" (76.2mm x 127mm x 35.6mm)
0.8lbs (362.87g)
Shock
Operational Vibration
Safety – Medical Standards
2 x MOPP (Primary-Secondary)
Safety – ITE Standards
Warranty
Outside Dimensions
Weight (typ.)
°C
RESIDUAL RISK (PER ISO 14971 & IEC60601-1) FOR USER CONSIDERATION
Fault Condition
Complies
Residual Risk
Contact your Murata salesperson for details
PROTECTION CHARACTERISTICS
Parameter
Over Voltage Protection4
Over Current Protection4
Over Temperature Protection
Remote Sense Short Circuit Protection
Remote Sense Reverse Connection Protection
Conditions
V1 (main output) latching
V3 (aux output) latching
V1, hiccup mode
V3, auto-recovery
Auto-recovery
Min.
110
5.5
110
110
Conditions
Primary to Chassis
Primary to Secondary (2xMOPP)
Secondary to Chassis
Output to Output
264Vac, 60Hz, 25°C
264Vac, 60Hz, 25°C
Min.
1500
4000
500
500
Typ.
%Amax
Complies
Complies
Complies
ISOLATION CHARACTERISTICS
Parameter
Isolation
Earth Leakage Current (under single fault condition)
Earth Leakage Current (under normal conditions)
Typ.
Max.
Units
Vac
300
150
µA
µA
CURRENT SHARING OPTION – MVAC400-xxAFD AND MVAC400-xxAFR
Model Number
Description
Main Output: Current share is achieved using the droop method. Nominal output voltage is achieved at 50% load and output voltage increases/drops at a rate of:
• 30mv per amp for the 12V output
• 120mV per amp for the 24V output
• 500mV per amp for the 50V output.
MVAC400-12AFD
MVAC400-24AFD
MVAC400-48AFD
MVAC400-12AFR
Startup of parallel power supplies is not internally synchronized. If more than 400W combined power is needed, start-up synchronization must be provided by
using a common PS_ON signal. To account for ±10% full load current sharing accuracy and the reduction in full load output voltage due to droop, available
output power must be derated by 15% when units are operated in parallel. Current sharing can be achieved with or without remote sense connected to the
common load.
If ORing protection is desired, use the AFR model or if the AFD model is selected please contact Murata sales for external ORing FET board or external ORing
FET reference circuit design (also see Applications Note ACAN-42).
Aux (V3) output can be tied together for redundancy but total combined output power must not exceed 10W, external ORing devices must be used.
Fan (V2) can be tied together for redundancy but total com load must not exceed 12W, external ORing devices must be used.
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MVAC400.B02 Page 2 of 8
MVAC400 Series
400W 3" x 5" High Density AC-DC Power Supply Converter
EMISSIONS AND IMMUNITY
Characteristic
Standard
Compliance
Input Current Harmonics
Voltage Fluctuation and Flicker
IEC/EN 61000-3-2
IEC/EN 61000-3-3
EN 55022
FCC Part 15
IEC/EN 61000-4-2
IEC/EN 61000-4-3
IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6
IEC/EN 61000-4-8
IEC/EN 61000-4-11
Class A
Complies
Class B
Class B
Level 4, Criterion 2
Level 3, Criterion A
Level 4, Criterion A
Level 3, Criterion A
Level 3, 10V/m, Criterion A
Level 3, Criterion A
Level 3, Criterion B
Conducted Emissions
ESD Immunity
Radiated Field Immunity
Electrical Fast Transient Immunity
Surge Immunity
Radiated Field Conducted Immunity
Magnetic Field Immunity
Voltage dips, interruptions
EMI CONSIDERATIONS
For optimum EMI performance, the power supply should be mounted to a metal plate grounded to all 4 mounting holes of the power supply. To comply with safety standards, this
plate must be properly grounded to protective earth (see mechanical dimension notes). Pre-compliance testing has shown the stand-alone power supply to comply with EN55022
class A radiated emissions. Class B radiated emissions are achievable with a metal enclosure. Radiated emission results vary with system enclosure and cable routing paths.
SAFETY CONSIDERATIONS
1. This power supply is a component level power supply intended for use in Class I or Class II applications. Secondary ground traces need to be suitably isolated
from primary ground traces when used in Class II applications.
2. When the power supply is used in Class II equipment, all ground traces and components connected to the primary side are considered primary for spacing and
insulation considerations.
STATUS AND CONTROL SIGNALS
Parameter Models
PS_ON
PWR_OK
Conditions
MVAC400-xxAF
This pin must be pulled low (sink current >2mA) to +5V_AUX_RTN to turn on the main and Fan (V2) output. The +5V_AUX output is independent of
MVAC400-xxAFD
the PS_ON signal, and comes up automatically when the input AC or input DC voltage is applied within their specified operating ranges.
MVAC400-xxAFR
MVAC400-xxAFT
This pin is pulled high internally and so all three outputs (main, Fan output and +5V_AUX) come up automatically when the input AC or input DC voltage
is applied within their specified operating ranges. Pulling this pin low (sink current >2mA) to +5V_AUX_RTN will disable the main and fan outputs.
All Models
Open collector logic goes high 50-200ms after the main output is within regulation; it goes low at least 6msecs before loss of regulation. Internal
10K pull up to +5V_Aux is provided. Applications using the PWR_OK signal should maintain a minimum load of 5W on the main or fan output.
1. Noise and ripple is measured at an oscilloscope jack on the output, 20MHz bandwidth, and with
0.1µF ceramic and 10µF aluminum electrolytic capacitors across the output pins.
2. Unless otherwise specified all measurements are taken at 120Vac input and 25°C ambient
temperature.
3. Fan (V2) regulation band applies from 0.1A to 1A load with a minimum of 10W load on the main
(V1) output.
4. Fan (V2) has overvoltage protection (tracking V1) and short circuit protection. Overloading the Fan
(V2) output can result in permanent damage to the unit.
5. 24V and 50V models may exhibit up to 5% turn on overshoot for loads less than 4% of full load.
6. Load regulation for droop version models (MVAC400-xxAFD and MVAC400-xxAFR) is based the
calculated droop voltage ±1.5% (see current sharing section for droop characteristics).
7. No load Input power varies by model and by input line. Measurement is difficult to make due to burst
mode operation. Please contact Murata sales if additional information is required.
8. All three output returns are isolated from each other (see isolation characteristics section); the
returns may be tied together externally.
9. Load steps beginning from combined loads on the main and fan outputs of less than 5W may
result in transient undershoots outside of the spec limits.
10. For MVAC400-xxAFR models only: Measured with 220µF capacitance across main output.
PART NUMBER STRUCTURE
MV A x yyy - zz hhh
Murata Manufacturing Corp.
Form Factor Outline
A = 2x4", 3x5", or 4x7"
Outline Detail
B & D = 2x4"
C = 3x5"
F = 4x7"
Modification Code Options
A = Aux 5V Standby Voltage
F = Aux 12V Fan Output
D = Droop Current Share
T = Terminal Output Connector
R = Terminal Output Connector with Internal Or-ing Solution and Droop Current Share
Main Output Voltage (V)
(12, 24, 28, or 48)
Output Power (W)
(40, 65, 120, 160, 250, 400, or 750)
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MVAC400.B02 Page 3 of 8
MVAC400 Series
400W 3" x 5" High Density AC-DC Power Supply Converter
PERFORMANCE DATA
Efficiency %
MVAC400-48 Efficiency (including 5V Aux Output)
95
94
93
92
91
90
89
88
87
86
85
84
0 10 20 30 40 50 60 70 80 90 100
Load %
230 Vin
115 Vin
90 Vin
MVAC400-24 Efficiency (including 5V Aux Output)
95
94
93
92
91
90
89
88
87
86
85
84
0 10 20 30 40 50 60 70 80 90 100
Load %
Efficiency %
Efficiency %
MVAC400-12 Efficiency (including 5V Aux Output)
95
94
93
92
91
90
89
88
87
86
85
84
0 10 20 30 40 50 60 70 80 90 100
Load %
230 Vin
115 Vin
90 Vin
Inrush Current
230 Vin
115 Vin
90 Vin
Time: 100 mSec/Div, Ch1: 500 V/Div, Ch4: 20 A/Div, Vin: 264 VAC, Ipk = 15.1 A
AC applied at peak of sine wave
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MVAC400.B02 Page 4 of 8
MVAC400 Series
400W 3" x 5" High Density AC-DC Power Supply Converter
THERMAL CONSIDERATIONS
System thermal management is critical to the performance and reliability of the MVAC series power supplies. Performance derating curves are provided
which can be used as a guideline for what can be achieved in a system configuration with controlled airflow at various input voltage conditions.
The air flow curves are generated using an AMCA 210-99 and ASHRAE 51-1999 compliant wind tunnel with heated inlet air and a controlled CFM
providing a duct test section having a calculated average LFM. A correlation between the test setup and the actual system environment is paramount to
understanding what can be achieved in an actual system. In a power supply of this density, cooling air moving both through the unit as well as around the
unit strongly influences local temperatures. The wind tunnel test setup was constructed to produce a flow with a slight back pressure to induce both flow
conditions by providing a small gap between the power supply and duct walls of 0.5" (13mm). The optimal and characterized airflow direction is from the
input connector to the output connector (see diagram below). The P-Q flow curve for this test setup is also shown below.
P-Q CURVE, DUCTED FLOW
13mm [0.5in] all sides
0.0100
*
Ambient Temperature
Measurement
Static Pressure (in. w.g.)
Air Flow
Power Supply
0.0075
0.0050
0.0025
0.0000
Output Connector
Input Connector
64mm [2.5in]
0
2.5
5
7.5
10
12.5
15
17.5
20
22.5
AIRFLOW-(CFM @ 0.075 lbs/cu ft air density)
The natural convection data is obtained from a horizontally mounted power supply with un-obstructed flow at room temperature. At elevated temperature
the power supply data is taken while it is surrounded by a large vented enclosure to minimize forced cross flows inherent in the elevated temperature test
system.
Power Rating at 120Vac
450
450
400
400
350
350
300
350LFM
250
250LFM
200
Nat Conv
150
Output Power (Watts)
Output Power (Watts)
Power Rating at 230Vac
100
300
500LFM
250
350LFM
200
250LFM
150
Nat Conv
100
50
50
10
20
30
40
50
60
70
10
20
Ambient Temperature (Degrees C)
Power Rating at 100Vac
40
50
60
70
Power Rating at 90Vac
450
450
400
400
350
350
300
500LFM
250
350LFM
200
250LFM
150
Nat Conv
100
Output Power (Watts)
Output Power (Watts)
30
Ambient Temperature (Degrees C)
300
500LFM
250
350LFM
200
250LFM
150
Nat Conv
100
50
50
10
20
30
40
50
Ambient Temperature (Degrees C)
60
70
10
20
30
40
50
60
70
Ambient Temperature (Degrees C)
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MVAC400.B02 Page 5 of 8
MVAC400 Series
400W 3" x 5" High Density AC-DC Power Supply Converter
WIRING DIAGRAM FOR OUTPUT
Dotted lines show optional remote sense connections.
Optional remote sense lines can be attached to a load that is a distance
away from the power supply to improve regulation at the load.
+Remote Sense
J3 pin 5
J2 pins 1-6
MVAC400
+DC out
Main Output Load
J2 pins 7-12
2K49
DC out return
J3 pin 6
-Remote Sense
J3 pin 1
+5V_AUX
J3 pin 4
PS_ON
10K0
10
100
CTR~100
+5V_AUX
>2mA
1N
+5V logic circuitry
10K0
100
5
J3 pin 2
PWR_OK
6
2
74LVC2G07
J3 pin 8
J3 pin 7
FET, BJT, wire
or switch (debounced )
to turn on +DC out
and +12V_fan
+5V_AUX_RTN
+12V_Fan
Fan or
other load
J3 pin 3
+12V_FAN_RTN
Note: For parallel (current share) operation it is required to connect the sharing power supplies in parallel (+DC out connected together and DC out Return connected together on sharing power supplies.
Since each output has an identical “droop” share characteristic then each output will intrinsically share the total load current.
APPLICATION NOTE
Document Number
Description
Link
ACAN-42 MVAC Series
External ORing FET Reference Circuit
www.murata-ps.com/data/apnotes/acan-42.pdf
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MVAC400.B02 Page 6 of 8
MVAC400 Series
400W 3" x 5" High Density AC-DC Power Supply Converter
MECHANICAL DIMENSIONS – MVAC400-xxAF and MVAC400-xxAFD
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MOUNTING GRID
A
B
4.50 x 2.50
114.30 [4.500] 63.50 [ 2.500]
4.55 x 2.55
115.57 [4.550] 64.77 [ 2.550]
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J2
6
5
4
3
2
1
12
11
10
9
8
7
1-6
7-12
+DC_OUT
+DC_OUT_RTN
1
3
5
7
1
2
3
4
5
6
7
8
+5V_AUX
PWR_OK
+12V_FAN_RTN
PS_ON
+REMOTE_SENSE
-REMOTE_SENSE
+12V_FAN
+5V_AUX_RTN
J3
2
4
6
8
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SAFETY CONSIDERATION NOTES:
1.
Protective bonding conductor from the end product protective earthing terminal must be tied to TB1. For optimum EMI performance, while maintaining
Class I safety isolation all 4 mounting holes must be tied to the end product protective earthing terminal. To maintain Class II safety isolation mounting
holes MTG1 and MTG2 need to be isolated from protective earth and should use standoffs of non-conductive material.
2.
This power supply requires mounting standoffs of minimum 6mm in height. If there is risk of chassis deformation or shorter standoff height isrequired,
an appropriate insulator must be used under the power supply with adequate extension beyond the outline of the power supply. In all cases,the
applicable safety standards must be applied to ensure proper creepage and clearance requirements are met.
3.
The primary heatsink is considered a live primary circuit, and should not be touched. It is recommended that the primary heatsink be kept at least
3.5mm from chassis and 7mm from secondary circuits. In all cases, the applicable safety standards must be applied to ensure proper creepage and
clearance requirements are met.
4.
This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to:
http://www.murata-ps.com/requirements/
5.
Used only in non-tropical conditions.
6.
Double pole/neutral fusing.
Dimensions: 3.0" x 5.0" x 1.4" (76.2mm x 127mm x 35.6mm)
INPUT/OUTPUT CONNECTOR AND SIGNAL SPECIFICATION AND MATING CONNECTORS – MVAC400-xxAF and MVAC400-xxAFD
Connector
Input Connector J1:
Molex 26-62-4030
Output Connector J2:
Molex 39-28-1123
Output Connector J3:
Molex 90130-1108
PIN
1
3
1,2,3,4,5,6
7,8,9,10,11,12
1
2
3
4
5
6
7
8
Description
AC Neutral
AC Line
+DC_OUT
+DC_OUT_RTN
+5V_AUX
PWR_OK
+12V_FAN_RTN
PS_ON
+Remote Sense
-Remote Sense
+12V_FAN
+5V_AUX_RTN
Mating Housing
Molex 0009930300
Crimp terminal/pins
Molex 0008500105 (18-24 AWG)
Molex 0008500107 (22-26 AWG)
Molex 0039012125
Molex 0039000038
Molex 0901420008
Molex 0901190109
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MVAC400.B02 Page 7 of 8
MVAC400 Series
400W 3" x 5" High Density AC-DC Power Supply Converter
MECHANICAL DIMENSIONS – MVAC400-xxAFT and MVAC400-xxAFR
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MOUNTING GRID
A
B
4.50 x 2.50
114.30 [4.500] 63.50 [ 2.500]
4.55 x 2.55
115.57 [4.550] 64.77 [ 2.550]
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J3
2
4
6
8
1
3
5
7
1
2
3
4
5
6
7
8
+5V_AUX
PWR_OK
+12V_FAN_RTN
PS_ON
+REMOTE_SENSE
-REMOTE_SENSE
+12V_FAN
+5V_AUX_RTN
$//',0(16,216$5(,100>,1@
Dimensions: 3.0” x 5.0” x 1.4” (76.2mm x 127mm x 35.6mm)
INPUT/OUTPUT CONNECTOR AND SIGNAL SPECIFICATION AND MATING CONNECTORS – MVAC400-xxAFT AND MVAC400-xxAFR
Connector
Input Connector J1:
Molex 26-62-4030
Output Connector J2:
Output Connector J3:
Molex 90130-1108
PIN
1
3
+
–
1
2
3
4
5
6
7
8
Description
AC Neutral
AC Line
+DC_OUT
+DC_OUT_RTN
+5V_AUX
PWR_OK
+12V_FAN_RTN
PS_ON
+Remote Sense
-Remote Sense
+12V_FAN
+5V_AUX_RTN
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
Mating Housing
Molex 0009930300
Crimp terminal/pins
Molex 0008500105 (18-24 AWG)
Molex 0008500107 (22-26 AWG)
6-32 machine screws
Molex 0901420008
Molex 0901190109
This product is subject to the following operating requirements and the Life and Safety Critical Application Sales
Policy. Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. (“Murata”) makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the
granting of licenses to make, use, or sell equipment constructed in accordance therewith. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards that anticipate dangerous consequences of failures, monitor failures and their consequences, lessen
the likelihood of failures that might cause harm, and take appropriate remedial actions. Buyer will fully indemnify Murata, its affiliated companies, and its representatives against any damages arising out of the use of any Murata products in safety-critical applications. Specifications are subject
to change without notice.
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