MVAC250 Datasheet, PDF (3/7 Pages) Murata Manufacturing Co., Ltd. – 250W High Density AC/DC Power Supply

MVAC250 Series
250W High Density AC/DC Power Supply
EMISSIONS AND IMMUNITY
Characteristic
Input Current Harmonics
Voltage Fluctuation and Flicker
Conducted Emissions
ESD Immunity
Radiated Field Immunity
Electrical Fast Transient Immunity
Surge Immunity
Radiated Field Conducted Immunity
Magnetic Field Immunity
Voltage dips, interruptions
Standard
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
Compliance
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
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
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.
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.
Min.
Complies
Complies
EFFICIENCY PLOTS
MVAC250-12F Efficiency
95
93
91
89
87
85
83
81
0 10 20 30 40 50 60 70 80 90 100
Load %
90 Vin
115 Vin
230 Vin
MVAC250-24F Efficiency
95
93
91
89
87
85
83
81
0 10 20 30 40 50 60 70 80 90 100
Load %
90 Vin
115 Vin
230 Vin
MVAC250-48F Efficiency
95
93
91
89
87
85
83
81
0 10 20 30 40 50 60 70 80 90 100
Load %
90 Vin
115 Vin
230 Vin
www.murata-ps.com/support
MVAC250.A01.D26 Page 3 of 7