MVAC250 Datasheet, PDF (2/7 Pages) Murata Manufacturing Co., Ltd. – 250W High Density AC/DC Power Supply

MVAC250 Series
250W High Density AC/DC Power Supply
ENVIRONMENTAL CHARACTERISTICS
Parameter
Storage Temperature Range
Operating Temperature Range
Operating Humidity
Operating Altitude
MTBF
Shock
Operational Vibration
Safety
Warranty
Outside Dimensions
Weight
Conditions
See power rating curves
Start up
Non-condensing
Telcordia SR-332 M1C3 @25°C
Operating, MIL-HBK-810E
Non-operating, MIL-HBK-810E
IEC-68-2-27 standard
Min.
Typ.
Max.
-40
85
-10
70
-20
10
95
-200
3000
474K
Complies
Complies
Complies to levels of IEC721-3-2
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
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)
Units
°C
%
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.
Typ.
Max.
V1 (main output) latching
110
125
V3 (aux output: MVAC250-xxAFD) latching
5.5
7.5
V1, hiccup mode
110
130
Auto-recovery
Complies
Complies
Complies
Units
%
V
%Amax
ISOLATION CHARACTERISTICS
Parameter
Isolation
Earth Leakage Current (under single fault condition)
Conditions
Min.
Typ.
Max.
Units
Primary to Chassis
1500
Primary to Secondary
3000
Vac
Secondary to Chassis
500
Output to Output
500
MVAC250-xxAFD: 264Vac, 60Hz, 25°C
150
µA
MVAC250-xxF: 264Vac, 60Hz, 25°C
250
CURRENT SHARING OPTION – MVAC250-xxAFD ONLY
Model Number
Description
MVAC250-12AFD
MVAC250-24AFD
MVAC250-48AFD
Current Sharing Notes:
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