Murata MVAC250-24F 250w high density ac/dc power supply Datasheet

MVAC250 Series
www.murata-ps.com
250W High Density AC/DC Power Supply
ORDERING GUIDE
Model Number*
Natural Convection Cooling
Forced Air Cooling
Main Fan Output Aux Output
Output (V1)
(V2)
(V3)
MVAC250-12F
170W
250W @ 250LFM
MVAC250-24F
MVAC250-48F
MVAC250-xxAFD
These models also include aux output (V3)
* Refer to page 2 for current sharing model numbers MVAC250-xxAFD
12V
24V
50V
12V
12V
12V
5V
INPUT CHARACTERISTICS
Parameter
FEATURES

Medical and ITE safety approved

250W compact high density

3" x 5" standard footprint

High efficiency up to 94%

Remote sense

Power On, Power OK (MVAC250-xxAFD)

Universal AC input with active PFC
Conditions
Min.
Input Voltage Operating Range*
Single phase
90
Input Frequency
47
Turn-on Input Voltage
Input rising
80
Turn-off Input Voltage
Input falling
70
Input Current
90Vac input, full load
Inrush Current
At 264Vac, at 25°C cold start
Power Factor
At 230Vac, full load
* DC Input 127-300Vdc optionally available; contact your Murata salesperson.
Typ.
Max.
Units
115/230
50/60
264
63
90
80
3.2
Vac
Hz
Vac
A
Apk
15
0.96
OUTPUT CHARACTERISTICS

Less than 1U high – 1.4"
Model Number
Main Output
Voltage (V1)
Load Current
Maximum Load
Capacitance
Line, Load, Cross
Regulation
Typical Efficiency
@230Vac

Convection cooled operation up to 170W

Isolated 5V@2A standby output with current
share model MVAC250-xxAFD

RoHS compliant
MVAC250-12F
MVAC250-24F
MVAC250-48F
MVAC250-12AFD
MVAC250-24AFD
MVAC250-48AFD
12V
24V
50V
12V @ 10.4A6
24V @ 5.2A6
50V @ 2.5A6
0.4 to 20.8A
0.2 to 10.4A
0.1 to 5.0A
0 to 20.8A
0 to 10.4A
0 to 5.0A
0 to 1500uF
0 to 300uF
0 to 100uF
0 to 1500uF
0 to 300uF
0 to 100uF
+/- 1%
+/- 1%
+/- 1%
+/- 1%6
+/- 1%6
+/- 1%6
93%
93%
94%
93%
93%
94%

Active inrush protection
Main Output Characteristics (all models)

Current sharing option
Parameter
Conditions
Transient Response
Settling Time to 1% of Nominal
Turn On Delay
Output Voltage Rise
Output Holdup
Temperature Coefficient
Ripple Voltage & Noise1
50% load step, 1A/µsec slew rate
After application of input power
Monotonic5
120Vac/60Hz, full load
Remote Sense
Compensates for up to 0.5V of lead drop with
remote sense connected. Protected against
short circuit and reverse connection.

Isolated 12V@1A fan output
DESCRIPTION
The MVAC250 series switching power supplies
utilize advanced component and circuit
technologies to deliver high efficiency. Designed
for Medical, Telecom and Industrial applications
to satisfy 1U height design considerations, the
MVAC250 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.
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Typ.
Max.
Units
±5
500
3
50
%
µsec
sec
20
msec
0.02
1
%/°C
%
500
mV
Auxilliary Output Characteristics (varies by model)
Auxilliary Output
Fan (V2) all models
Aux (V3) – MVAC250-xxAFD
Line, Load, Cross Ripple Voltage
Aux Output
Load Current Load Capacitance
Regulation3
Voltage
& Noise1
12V
5V
0 to 1A
0 to 2A
0 to 220µF
0 to 220µF
± 10%
± 5%
2%
1%
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. See current sharing option section for droop characteristics.
CB
For full details go to
www.murata-ps.com/rohs
Test Certificate
and Test Report
PENDING
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MVAC250.A01.D26 Page 1 of 7
MVAC250 Series
250W High Density AC/DC Power Supply
ENVIRONMENTAL CHARACTERISTICS
Parameter
Conditions
Storage Temperature Range
See power rating curves
Start up
Non-condensing
Operating Temperature Range
Operating Humidity
Operating Altitude
MTBF
Telcordia SR-332 M1C3 @25°C
Operating, MIL-HBK-810E
Non-operating, MIL-HBK-810E
IEC-68-2-27 standard
Shock
Operational Vibration
Min.
Typ.
-40
-10
-20
10
-200
474K
Complies
Complies
Complies to levels of IEC721-3-2
Max.
Units
85
70
°C
95
3000
Safety
IEC60950-1: 2006/A11:2009
UL60950-1 2nd Ed., 2007-03-27 & CSA C22.2 No.60950-1-07, 2nd, 2007.03
EN60950-1:2006+A11:2009
ANSI/AAMI ES60601-1 (2005+C1:09+A2:10) CSA-C22.2 No. 60601-1 (2008) 3rd Edition
CE Marking per LVD
Warranty
Outside Dimensions
Weight
2 years
3.0" x 5.0" x 1.4" (76.2mm x 127mm x 35.6mm)
MVAC250-xxF: 0.73 lbs (332.9g); MVAC250-xxAFD: 0.76 lbs (344.7g)
%
m
Hours
RESIDUAL RISK (PER ISO 14971 & IEC60601-1) FOR USER CONSIDERATION
Fault Condition
Residual Risk
Complies
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
Min.
V1 (main output) latching
V3 (aux output: MVAC250-xxAFD) latching
V1, hiccup mode
Auto-recovery
110
5.5
110
Typ.
Max.
Units
125
7.5
130
%
V
%Amax
Complies
Complies
Complies
ISOLATION CHARACTERISTICS
Parameter
Conditions
Min.
Isolation
Primary to Chassis
Primary to Secondary
Secondary to Chassis
Output to Output
MVAC250-xxAFD: 264Vac, 60Hz, 25°C
MVAC250-xxF: 264Vac, 60Hz, 25°C
1500
3000
500
500
Earth Leakage Current (under single fault condition)
Typ.
Max.
Units
Vac
150
250
µA
CURRENT SHARING OPTION – MVAC250-xxAFD ONLY
Model Number
Description
Current Sharing Notes:
MVAC250-12AFD
MVAC250-24AFD
MVAC250-48AFD
Main Output: Current share is achieved using the droop method. Nominal output voltage is achieved at 50% load and output voltage drops at
a rate of 48mv per amp for 12V output, 192mV per amp for 24V output, and 800mV per amp for 50V output. Startup of parallel power supplies
is not internally synchronized. If more than 250W 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, please contact Murata sales for external ORing FET board or external ORing FET
reference circuit design.
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 combined output power must not exceed 12W, external ORing diodes can be used.
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MVAC250.A01.D26 Page 2 of 7
MVAC250 Series
250W High Density AC/DC Power Supply
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 4, 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. Radiated emission results vary with system enclosure and cable routing
paths.
STATUS AND CONTROL SIGNALS – MVAC250-xxAFD ONLY
Parameter Conditions
Min.
PS_ON
This signal must be pulled low to +5V_AUX_RTN to turn on the main and Fan (V2) output. The +5V_AUX output is on when AC is applied.
Complies
PWR_OK
Open collector logic goes high 50-200 msec after main output is in regulation; it goes low at least 6 msec before loss of regulation. Internal 10K pull up
to +5V_AUX is provided.
Complies
EFFICIENCY PLOTS
MVAC250-24F Efficiency
95
95
93
93
91
90 Vin
89
115 Vin
Efficiency %
Efficiency %
MVAC250-12F Efficiency
230 Vin
87
91
90 Vin
89
115 Vin
85
85
83
83
81
230 Vin
87
81
0
10
20
30
40
50
60
70
80
90
100
0
10
20
Load %
30
40
50
60
70
80
90
100
Load %
MVAC250-48F Efficiency
95
Efficiency %
93
91
90 Vin
89
115 Vin
230 Vin
87
85
83
81
0
10
20
30
40
50
60
70
80
90
100
Load %
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MVAC250.A01.D26 Page 3 of 7
MVAC250 Series
250W High Density AC/DC Power Supply
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
Air Flow
0.0100
*
Ambient Temperature
Measurement
Static Pressure (in. w.g.)
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 RaƟng at 120Vac
Nat Conv
250LFM
10
20
30
40
50
60
Output Power (WaƩs)
Output Power (WaƩs)
Power RaƟng at 230Vac
275
250
225
200
175
150
125
100
75
50
275
250
225
200
175
150
125
100
75
50
70
Nat Conv
250LFM
10
Ambient Temperature (Degrees C)
20
275
250
225
200
175
150
125
100
75
50
Nat Conv
250LFM
20
30
40
50
60
Ambient Temperature (Degrees C)
40
50
60
70
Power RaƟng at 90Vac
70
Output Power (WaƩs)
Output Power (WaƩs)
Power RaƟng at 100Vac
10
30
Ambient Temperature (Degrees C)
275
250
225
200
175
150
125
100
75
50
Nat Conv
250LFM
10
20
30
40
50
60
70
Ambient Temperature (Degrees C)
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MVAC250.A01.D26 Page 4 of 7
MVAC250 Series
250W High Density AC/DC Power Supply
INRUSH CURRENT
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
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.
.
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
+Remote Sense
+DC out
J3 pin 5
J2 pins 1-6
+DC out
J3 pin 5
J2 pins 1-6
12V load
MVAC250-xxAFD
12V load
MVAC250-xxF
J2 pins 7-12 DC out return
J3 pin 6 -Remote Sense
J2 pins 7-12 DC out return
J3 pin 6 -Remote Sense
J3 pin 1 +5V_AUX
J3 pin 4 PS_ON
Close switch (or FET, BJT, or wire) +5V logic circuitry
to turn on +DC out and +12V_fan
J3 pin 8 +5V_AUX_RTN
J3 pin 7 +12V_Fan
J3 pin 7 +12V_Fan
Fan or
other load
Fan or
other load
J3 pin 3 +12V_FAN_RTN
J3 pin 3 +12V_FAN_RTN
APPLICATION NOTE
Document Number
Description
ACAN-42 MVAC Series
External ORing FET Reference Circuit
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MVAC250.A01.D26 Page 5 of 7
MVAC250 Series
250W High Density AC/DC Power Supply
MECHANICAL DIMENSIONS – MVAC250-xxF ONLY
127.00±0.25
5.000±.010
6.50±0.13
.256±.005
6.35±0.13
.250±.005
114.30±0.13
4.500±.005
MOUNTING HOLES
3.96±0.13
.156±.005
MAX SCREW HEAD
DIAMETER 7.40
MTG4
MTG1
J2
76.20±0.25
3.000±.010
TB1
J1
PIN 1
PIN 2
REMOVED
63.50±0.13
J1
PIN 3
2.500±.005
J2
PIN12
J2
PIN1
J3
PIN 1
J3
PIN 8
MTG2
PRIMARY
HEATSINK
NOTE 3 !
MTG3
30.0±0.25
1.181±.010
5.56±0.13
.219±.005
6
5
4
3
2
1
12
11
10
9
8
7
1-6
7-12
1
3
5
7
1
2
3
4
5
6
7
8
+DC_OUT
+DC_OUT_RTN
J3
2
4
6
8
DO NOT USE
DO NOT USE
+12V_FAN_RTN
DO NOT USE
+REMOTE SENSE
-REMOTE SENSE
+12V_FAN
DO NOT USE
ALL DIMENSIONS ARE IN MM [IN]. TOLERANCE IS ±0.65MM [0.025IN]
NOTES:
1.
Protective bonding conductor from the end product protective earthing terminal must be tied to TB1. For optimum EMI performance, 4 mounting holes
must be tied to the end product protective earthing terminal.
2.
This power supply requires mounting on standoffs minimum 6mm in height. If there is risk of chassis deformation or shorter standoff height is
required, 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. The primary heatsink must be kept at least 3.5mm from chassis
and 7mm from secondary circuits.
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 – MVAC250-xxF ONLY
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
DO NOT USE
DO NOT USE
+12V_FAN_RTN
DO NOT USE
+ Remote Sense
- Remote Sense
+12V_FAN
DO NOT USE
Mating Housing
Crimp terminal/pins
Molex 0009930300
Molex 0008500105 (18-24 AWG)
Molex 0008500107 (22-26 AWG)
Molex 0039012125
Molex 0039000038
Molex 0901420008
Molex 0901190109
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MVAC250.A01.D26 Page 6 of 7
MVAC250 Series
250W High Density AC/DC Power Supply
MECHANICAL DIMENSIONS – MVAC250-xxAFD ONLY
127.00±0.25
5.000±.010
6.50±0.13
.256±.005
6.35±0.13
.250±.005
114.30±0.13
4.500±.005
MOUNTING HOLES
3.96±0.13
.156±.005
MAX SCREW HEAD
DIAMETER 7.40
MTG4
MTG1
J2
76.20±0.25
3.000±.010
TB1
J1
PIN 1
PIN 2
REMOVED
63.50±0.13
J1
PIN 3
2.500±.005
J2
PIN12
J2
PIN1
J3
PIN 1
J3
PIN 8
MTG2
PRIMARY
HEATSINK
NOTE 3 !
MTG3
30.0±0.25
1.181±.010
5.56±0.13
.219±.005
6
5
4
3
2
1
12
11
10
9
8
7
1-6
7-12
1
3
5
7
1
2
3
4
5
6
7
8
+DC_OUT
+DC_OUT_RTN
J3
2
4
6
8
+5V_AUX
PWR_OK
+12V_FAN_RTN
PS_ON
+REMOTE SENSE
-REMOTE SENSE
+12V_FAN
+5V_AUX_RTN
ALL DIMENSIONS ARE IN MM [IN]. TOLERANCE IS ±0.65MM [0.025IN]
NOTES:
1.
Protective bonding conductor from the end product protective earthing terminal must be tied to TB1. For optimum EMI performance, 4 mounting holes
must be tied to the end product protective earthing terminal.
2.
This power supply requires mounting on standoffs minimum 6mm in height. If there is risk of chassis deformation or shorter standoff height is
required, 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. The primary heatsink must be kept at least 3.5mm from chassis
and 7mm from secondary circuits.
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 – MVAC250-xxAFD ONLY
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
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
Mating Housing
Crimp terminal/pins
Molex 0009930300
Molex 0008500105 (18-24 AWG)
Molex 0008500107 (22-26 AWG)
Molex 0039012125
Molex 0039000038
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. 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. Specifications are subject to change without
notice.
© 2012 Murata Power Solutions, Inc.
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MVAC250.A01.D26 Page 7 of 7
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