MPS_CEF400-112C.B19.indd JParks

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Specifications	MPS_CEF400-112C.B19.indd JParks
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FEATURES 400W continuous output power Low proﬁ le (1U) IEC EN61000-3-2 compliance Remote sense compensation AC Power F

Specifications	MPS_CEF400-112C.B19.indd JParks
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Content	FEATURES 400W continuous output power Low proﬁ le (1U) IEC EN61000-3-2 compliance Remote sense compensation AC Power Fail signal DC Power Good signal Remote Inhibit control Droop current share Built-in OR-ing FET I2C interface 5V Standby Integrated cooling fan (variable speed) Over-voltage protection Over-current protection Thermal overload protection OUTPUT CHARACTERISTICS Output VoltageParameterConditionsMin.Typ.Max.Units 12V Voltage Set Point Accuracy17A load12.0812.12512.16VDCLine and Load Regulation11.7512.45 Ripple Voltage & Noise120MHz Bandwidth175mV p-p Rated Output Current33.3A 5Vsb Voltage Set Point Accuracy4.8555.15VDCLine and Load Regulation4.855.15 Ripple Voltage & Noise120MHz Bandwidth50mV p-p Rated Output Current1.3A GENERAL ParameterConditionsMin.Typ.Max.Units Remote SenseSum of +ve & -ve drops500mV EfficiencyFull load, high line83% Turn on Delay2s Transient Response 12V Ramp 1A/μs 33% step±375mV5Vsb Ramp 1A/μs 33% step±40 Current Sharing Accuracy 200-720W load (2 in parallel)45/55 %96-200W load (2 in parallel)40/60 50-96W load (2 in parallel)20/80 24-50W load (2 in parallel)10/90 Hold-up Time, to 10.8V400W, 120VAC line20ms IsolationOutput to Chassis-Basic500VrmsInput to Chassis-Basic1500 Temperature CoefficientFull load and 100VAC input0.02% / °C 1 Ripple and noise are measured with 0.1 μF of ceramic capacitance and 10 μF of tantalum capacitance on each of the power supply outputs. The output noise requirements apply over a 0 Hz to 20 MHz bandwidth. A short coaxial cable with 50Ω scope termination is used. PROTECTION CHARACTERISTICS ParameterOutput VoltageConditionsMin.Typ.Max.Units Over Voltage 12V Latching14.06514.514.935V Over CurrentAuto-restart363842A Short Circuit The 12V output shall current limit and shutdown during a shorted output condition, and shall automatically restart after the short is removed. Over Voltage5VsbLatching5.66V Over CurrentAuto-restart1.42.12.65A Over-temperatureUnitAuto-restartUnit shall self-protect against excessive internal temperatures and automatically recover. Input UndervoltageNo damage will be sustained by operation at voltages below the specified input operating voltage range. DESCRIPTION The CEF400-112C is a 400W active power- factor-corrected (PFC) front-end power supply for distributed power architecture (DPA) sys- tems requiring high power density in a 1U low proﬁ le package. The built-in OR-ing FET allows the power supply to operate in active current sharing mode for redundant (N+1) operation. Additional features include I2C interface, built- in fan and a 5V standby auxiliary output. The CEF400-112 provides reliable 12V bulk power for Information Technology Equipment and Industrial Applications. INPUT CHARACTERISTICS ParameterConditionsMin.Typ.Max.Units Input Voltage Operating Range (AC)85264VAC Input Frequency4763Hz Turn-on Input VoltageRamp up7685VACTurn-off Input VoltageRamp down6378 Maximum Input Current1.756.5Arms Inrush Current20Apk Power FactorIEC EN61000-3-2 compliant Leakage Current264 VAC input0.90mA PRODUCT SPECIFICATIONS email: sales@murata-ps.com 04 Apr 2011 MPS_CEF400-112C.B19 Page 1 of 3 CEF400-112C 400 Watt Open Frame Single Output AC/DC Switching Power Supply www.murata-ps.com For full details go to www.murata-ps.com/rohs Ḥ www.murata-ps.com
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