PQC250-48

**PQC250 Series** 

## 250W 3" x 5" Convection Cooled AC-DC Power 

## **DESCRIPTION** 

The PQC250 series switching power supplies utilize advanced component and circuit technologies to deliver high efficiency and low power dissipation in both operational and standby operation in a compact 3.0" x 5.0" x 1.40" package. Designed for medical, computing, communications, telecom, industrial, consumer, and other OEM applications, deployable in 1U customer systems. All models offer universal AC input capability with active power factor correction (PFC) and compliance to worldwide safety and EMC standards. 

## ORDERING GUIDE (BASIC MODEL NUMBER) 

||Model Number<br>Murata Internal Part#|Murata Internal Part#<br>Natural<br>Convection<br>Main Out<br>Voltage|Main Output(V1)<br>Aux Output(V2)<br>Voltage<br>Current<br>Voltage<br>Current|Main Output(V1)<br>Aux Output(V2)<br>Voltage<br>Current<br>Voltage<br>Current|
|---|---|---|---|---|
||PQC250-12xxx<br>M1905|12Vdc|20.8A||
|IEC60601 Ed.3 medical (2 x MOPP Pri-Sec; 1 x MOPP Pri-<br>Designed to comply with IEC60601-1 4th Edition EMC<br>250W compact high density; operation to 250W at +50°C<br>Very low no load standby power; designed to meet<br>Program Requirements for Single Voltage<br>True zero load operation of the Main (V1) output; no<br>i/<br>~<br>;<br>S<br>)|250W<br>5V<br>0.5A<br>PQC250-15xxx1<br>M1947<br>15Vdc<br>16.6A<br>PQC250-18xxx1<br>M1948<br>18Vdc<br>13.8A<br>PQC250-24xxx<br>M1937<br>24Vdc<br>10.4A<br>PQC250-28xxx1<br>M1946<br>28Vdc<br>8.9A<br>PQC250-36xxx<br>M1938<br>36Vdc<br>6.9A<br>PQC250-48xxx<br>M1939<br>48Vdc<br>5.2A<br>PQC250-54xxx<br>M1949<br>54Vdc<br>4.6A<br>1Consult with factory for availability<br>INPUT CHARACTERISTICS<br>Parameter<br>Conditions<br>Min<br>Nom<br>Max<br>Units<br>Input Voltage AC Operating Range<br>Single Phase<br>90<br>100/240<br>264<br>Vac<br>Input Frequency<br>47<br>50/60<br>63<br>Hz<br>2DC input1refer to:<br>Part_Number_Options_Guide<br>127<br>300<br>Vdc<br>260<br>400<br>Vdc<br>Maximum input current<br>Vin = 115Vac;Full Load<br>2.5<br>Arms<br>2Vin = 127-300Vdc<br>2.7<br>A<br>2Vin = 260-400Vdc<br>1.5<br>A<br>Inrush Current<br>230Vac,Cold start, 25°C;<br>30<br>Apk<br>Power Factor<br>At 115Vac, full load<br>0.95<br>W/VA<br>Hold-up Time<br>90Vac; Full Load<br>16<br>msec<br>Efficiency @ 230VAC for PQC250-48<br>model.<br>20% Full Load<br>88.5<br>%<br>50% Full Load<br>94<br>100% Full Load<br>95<br>No Load Input Power Consumption<br>(PS_ON=OFF; Aux (V2)=0A<br><0.5W<br>W<br> ~~|~~||||



## **FEATURES** 

- IEC60601 Ed.3 medical (2 x MOPP Pri-Sec; 1 x MOPP PriChassis Ground); PQC250-xx Series 

- 60950-1 compliant, IEC62368[3] 

- Designed to comply with IEC60601-1 4th Edition EMC Standard Requirements[1] 

- 250W compact high density; operation to 250W at +50°C 

- Very low no load standby power; designed to meet ENERGY STAR[®] Program Requirements for Single Voltage External AC-DC Power Supplies 

- True zero load operation of the Main (V1) output; no 

- minimum load requirements 

- 3" x 5" industry standard footprint 

- Optional DC input capability 

- High effciency 94% typical 

- Remote sense, main output 

- Universal AC input with active PFC 

- 1 Consult with factory for details and availability 

> 2  Medical certification applies to AC input models only. 

- Less than 1U high 

## OUTPUT CHARACTERISTICS 

- RoHS compliant 

- Active inrush protection  Compatibility with MVAC250 Series products[1,2] 

|OUTPUT CHARACTERISTICS<br>~~ee~~|OUTPUT CHARACTERISTICS<br>~~ee~~|OUTPUT CHARACTERISTICS<br>~~ee~~|OUTPUT CHARACTERISTICS<br>~~ee~~|OUTPUT CHARACTERISTICS<br>~~ee~~|OUTPUT CHARACTERISTICS<br>~~ee~~|
|---|---|---|---|---|---|
|Parameter<br>~~ee~~|Conditions<br>~~ee~~|Min<br>~~ee~~|Nom<br>~~ee~~|Max<br>~~ee~~|Units<br>~~ee~~|
|Line, Load Regulation|Main (V1) Output1|||±1|%|
||Aux (V2) Output|||±5||
|Minimum Load Capability|Stable Operation|0|||A|
|Output Ripple|Zero to Full Load2|||120|mVp-p|



- Droop Current Share option 

- Two Year Standard Warranty 

- 1When deployed in End User Systems) 

   - 1 zero load output regulation will increase by up to +10% of nominal set point voltage for all models. 200mA min. load current is required to keep output voltage within ±1%. 

- 2Some features of MVAC250 Series not available on this product 

- 3  certification  in process 

- 2 Ripple and noise are measured with 0.1uF ceramic capacitor and 10uF tantalum capacitor. A short coaxial cable with 50 ohm termination is used. 

## MAIN OUTPUT CHARACTERISTICS (ALL MODELS) 

**Available now at www.murata-ps.com/en/3d/acdc.html** 

|MAIN OUTPUT CHARACTERISTICS (ALL MODELS)(ALL MODELS)ALL MODELS))|MAIN OUTPUT CHARACTERISTICS (ALL MODELS)(ALL MODELS)ALL MODELS))|MAIN OUTPUT CHARACTERISTICS (ALL MODELS)(ALL MODELS)ALL MODELS))|MAIN OUTPUT CHARACTERISTICS (ALL MODELS)(ALL MODELS)ALL MODELS))|MAIN OUTPUT CHARACTERISTICS (ALL MODELS)(ALL MODELS)ALL MODELS))|
|---|---|---|---|---|
|Parameter|Conditions|Typ.|Max.|Units|
|Transient Response1|50% load step, 1A/µsec slew rate and min 0.1A<br>load|50% load step, 1A/µsec slew rate and min 0.1A|± 5|%|
|SettlingTime to 1% of Nominal|||500|µsec|
|Turn On Delay|After application of inputpower||3|sec|
|Output Voltage Rise|Monotonic||50|msec|
|Remote Sense|Compensates for up to 120mV of total lead<br>drop (output and return connections)  with<br>remote sense connected. Protected against<br>short circuit andreverse connection.||120|mV|



**1**[1] Min. 1 second time between consecutive transients. 

## AUXILIARY OUTPUT CHARACTERISTICS (ALL MODELS) 

Aux Output Line, Load, Cross Ripple Voltage & Auxiliary Output Load Current Load Capacitance Voltage Regulation Noise Aux (V2) 5V 0 to 0.5A 0 to 220µF ± 5% 120mVp-p 

CB Test Certificate and Test Reports available upon request Pending Certification 

**www.murata-ps.com/support** 

PQC250.A03 Page 1 of 7 

| muPata | Ps! Murata Power Solu ~~ti~~ ons 

**PQC250 Series** 

250W 3" x 5" Convection Cooled AC-DC Power Supply 

|ENVIRONMENTAL CHARACTERISTICS<br>~~SS~~|ENVIRONMENTAL CHARACTERISTICS<br>~~SS~~|ENVIRONMENTAL CHARACTERISTICS<br>~~SS~~|ENVIRONMENTAL CHARACTERISTICS<br>~~SS~~|ENVIRONMENTAL CHARACTERISTICS<br>~~SS~~|ENVIRONMENTAL CHARACTERISTICS<br>~~SS~~|ENVIRONMENTAL CHARACTERISTICS<br>~~SS~~|
|---|---|---|---|---|---|---|
|Parameter|Conditions||Min.|Typ.|Max.|Units|
|Storage Temperature Range|||-40||85|°C|
|Operating Temperature Range|Seepower ratingcurves;TBC||-10||70||
||Start upwith -20C @ 100Vac minimum input||-20||||
|OperatingHumidity|Non-condensing||10||95|%|
|OperatingAltitude|||-200||25000|m|
|MTBF|Telcordia SR-332 Issue 3; M1C3 @40°C (Target)|||2145K||Hours|
|Shock|30G,non-operating|Complies|||||
|Operational Vibration|Sine Sweep; 5-150Hz, 2G<br>Random Vibration, 5-500Hz,1.11G|Complies|||||
|Safety – Medical Standards<br>2 x MOPP (Primary-Secondary)|IEC60601-1  (Ed. 3) – CB Cert and Report ANSI/AAMI ES60601-1  (2005+C1:09+A2:10)<br>CAN/CSA 22.2 No. 60601-1  (2008) 3rd Edition<br>EN60601-1:2006+CORR:2010||||||
|Safety – ITE, Audio/Video &<br>Consumer Standards|IEC/EN/UL/CSA 60950-1<br>IEC/EN/UL/CSA 60335-1 (CB Report)<br>CE Marking  per LVD<br>IEC623681||||||
|Fuses|Dual Fuses; Line and Neutral; 6.3A Time Lag; 250V||||||
|Outside Dimensions|3.0" x 5.0" x 1.44"(76.2mm x 127mm x 35.2mm)nominal||||||
|Weight(typ.)|0.352/0.78|||||kg/lbs|



> 1 Certification in process 

> 2 3000 M max. altitude for Medical applications 

||PROTECTION CHARACTERISTICS<br>~~a~~|PROTECTION CHARACTERISTICS<br>~~a~~|PROTECTION CHARACTERISTICS<br>~~a~~|PROTECTION CHARACTERISTICS<br>~~a~~|PROTECTION CHARACTERISTICS<br>~~a~~|PROTECTION CHARACTERISTICS<br>~~a~~|
|---|---|---|---|---|---|---|
||Parameter|Conditions|Min.|Typ.|Max.|Units|
||Over Voltage Protection|V1(main output)latching<br>V2(aux output)latching|115<br>5.5||140<br>7.5|%<br>V|
|||V1,hiccupmode|120||150||
||Over Current Protection|V1,latch mode|160||Short circuit|%Amax|
|||V2,auto-recovery|110||150||
||Over Temperature Protection|Auto-recovery||Complies|||
||Remote Sense Short Circuit Protection|||Complies|||
||Remote Sense Reverse Connection Protection|||Complies|||
|ISOLATION CHARACTERISTICS<br>Parameter<br>~~Ls:~~||Conditions|Min.<br>Typ.<br>Max.<br>Units<br>~~eee~~||||
||Isolation|Primaryto Chassis|1500||||
|||Primaryto Secondary (2xMOPP)|4000||||
|||Secondaryto Chassis|1500|||Vac|
|||Output to Output|1500||||
||Earth Leakage Current(under single fault condition)|264Vac,60Hz,25°C||300||µA|
||Earth Leakage Current(under normal conditions)|264Vac,60Hz,25°C||150||µA|



## ~~OO~~ CURRENT SHARING OPTION – PQC250X1 

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 with a total of ±5% of nominal voltage. 

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 MOSFET reference circuit design (also see Applications Note ACAN-XX). Aux (V2) output can be tied together for redundancy but total combined output power must not exceed 2.5W, external ORing devices are recommended to preserve redundancy. 

PQC250-XXD 

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PQC250.A03 Page 2 of 7 

| muPata | Ps! Murata Power Solu ~~ti~~ ons 

**PQC250 Series** 

250W 3" x 5" Convection Cooled AC-DC Power Supply 

|EMISSIONS AND IMMUNITY<br>~~Cee~~|EMISSIONS AND IMMUNITY<br>~~Cee~~|EMISSIONS AND IMMUNITY<br>~~Cee~~|
|---|---|---|
|Characteristic|Standard|Compliance|
|Input Current Harmonics|IEC/EN 61000-3-2|Class A|
|Voltage Fluctuation and Flicker|IEC/EN 61000-3-3|Complies|
|Conducted Emissions|EN 55022|Class B|
||FCC Part 15|Class B|
|Radiated Emissions|CISPR 22 -3 meter|Class B|
||FCC 15.109 - 3 meter|Class B|
|ESD Immunity|IEC/EN 61000-4-2|Level 4,Criterion 2|
|Radiated Field Immunity|IEC/EN 61000-4-3|Level 3,Criterion A|
|Electrical Fast Transient Immunity|IEC/EN 61000-4-4|Level 4,Criterion A|
|Surge Immunity|IEC/EN 61000-4-5|Level 3, Criterion A (Com. Mode: 2kV 12 OHM, Diff.<br>Mode: 1kV, 2 OHM)|
|Radiated Field Conducted Immunity|IEC/EN 61000-4-6|Level 3,10V/m,Criterion A|
|Magnetic Field Immunity|IEC/EN 61000-4-8|Level 3,Criterion A|
|Voltage dips,interruptions|IEC/EN 61000-4-11|Level 3,Criterion B|



## ~~hl~~ 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 B radiated emissions with a metal enclosure. A small common mode choke is required at the output cable to meet class B. Contact Murata for details. Radiated emission results vary with system enclosure and cable routing paths. 

~~hl~~ 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. 

~~Oe~~ STATUS AND CONTROL SIGNALS Parameter Models Conditions 

This pin must be pulled low (sink current >2mA) to +5V_AUX_RTN to turn on the main output. The +5V_AUX output is independent of the PS_ON PS_ON All Models signal, and comes up automatically when the input AC or input DC voltage is applied within their specified operating ranges. PWR_OK All Models Open collector logic goes high 40-100ms after the main output is within regulation; it goes low at least 2msecs 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 output. 

~~he~~ PART NUMBER STRUCTURE PQC 250 **-** yy hh **Options** D = Droop Current Share T = Terminal Block[1 ] H = DC input[1] Link back to Input_Table **PQC= “Power, Quality, Convection Cooled** ~~**”**~~ **Main Output Voltage** (12, 24, 36, 48, 54) **Output Power (Watts) Examples:   PQC250-24 = Base Model; no options selected PQC250-24D = 24V Output with Droop Current Share Option** 1 Consult with factory for details and availability 

**www.murata-ps.com/support** 

PQC250.A03 Page 3 of 7 

**PQC250 Series** 

## | muPata | Ps! Murata Power Solu ~~ti~~ e ons 

250W 3" x 5" Convection Cooled AC-DC Power Supply 

PERFORMANCE TYPICAL DATA EXAMPLES Efficiency 48V Model 

## Ripple, 12V Model 

## **Transient Performance,** 12V Model 

Transient Performance, 12V Model 

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PQC250.A03 Page 4 of 7 

**PQC250 Series** 

## | muPata | Ps! Murata Power Solu ~~ti~~ e ons 

250W 3" x 5" Convection Cooled AC-DC Power Supply 

## PERFORMANCE DATA ~~Le~~ Start Up Performance ,12V Model shown 

## THERMAL CONSIDERATIONS 

System thermal management is critical to the performance and reliability of the PQC250 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 product is designed to provide 250W[1] using natural convection cooling when mounted horizontally with un-obstructed convection current airflow 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. 

The product is capable of operation when mounted in other orientations; operational/derating curves shall be provided to show the effect of such mounting. 

The PQC250 Series will also benefit from the provision of forced cooling airflow (generated by an external host system fan). This will enable operation at potentially higher local surrounding ambient temperatures. 

1 Derating curves are provided to indicate operation at varying input voltages with respect to temperature. 

**Derating Curve vs. Temperature (Unit mounted horizontal with PTH components facing up, natural convection cooled, shown below)** 

**==> picture [418 x 221] intentionally omitted <==**

**----- Start of picture text -----**<br>
Derating Power Curve<br>300<br>250<br>200<br>150<br>90v<br>100v<br>100<br>50<br>0<br>-10 0 10 20 30 40 50 60 70<br>Ambient Temperature( °C )<br>Output Power( w )<br>**----- End of picture text -----**<br>


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PQC250.A03 Page 5 of 7 

## | muPata | Ps! Murata Power Solu ~~ti~~ e ons **PQC250 Series** 250W 3" x 5" Convection Cooled AC-DC Power Supply 

## WIRING DIAGRAM FOR OUTPUT 

**==> picture [45 x 10] intentionally omitted <==**

**----- Start of picture text -----**<br>
PQC250x<br>**----- End of picture text -----**<br>


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|APPLICATION NOTE|APPLICATION NOTE|
|---|---|---|
|Document Number|Description|Link|
|ACAN-XX PQC Series|PQC250 General Deployment|www.murata-ps.com/data/apnotes/acan-XX.pdf|



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PQC250.A03 Page 6 of 7 

| muPata | Ps! Murata Power Solu ~~ti~~ ons 

**PQC250 Series** 

250W 3" x 5" Convection Cooled AC-DC Power Supply 

~~OO)~~ MECHANICAL DIMENSIONS (Nominal) – PQC250-xx 

## 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 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. 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. 

|INPUT/OUTPUTCONNECTOR ANDSIGNALSPECIFICATION AND MATING CONNECTORS– PQC250x<br>~~ed~~|INPUT/OUTPUTCONNECTOR ANDSIGNALSPECIFICATION AND MATING CONNECTORS– PQC250x<br>~~ed~~|INPUT/OUTPUTCONNECTOR ANDSIGNALSPECIFICATION AND MATING CONNECTORS– PQC250x<br>~~ed~~|INPUT/OUTPUTCONNECTOR ANDSIGNALSPECIFICATION AND MATING CONNECTORS– PQC250x<br>~~ed~~|INPUT/OUTPUTCONNECTOR ANDSIGNALSPECIFICATION AND MATING CONNECTORS– PQC250x<br>~~ed~~|
|---|---|---|---|---|
|Connector<br>~~ed~~|PIN<br>~~ed~~|Description<br>~~ed~~|MatingHousing<br>~~ed~~|Crimpterminal/pins<br>~~ed~~|
|Input Connector J1:<br>Molex 26-62-4030|1|ACNeutral|Molex 0009930300|Molex 0008500105 (18-24 AWG) Molex<br>0008500107(22-26 AWG)|
||3|AC Line|||
|Output Connector J2:<br>Molex 39-28-1123|1,2,3,4,5,6|+DC_OUT|Molex 0039012125|Molex 0039000038|
||7,8,9,10,11,12|+DC_OUT_RTN|||
|Output Connector J3:<br>Molex 90130-1108|1|+5V_AUX|Molex 0901420008|Molex 0901190109|
||2|PWR_OK|||
||3|DONOTUSE|||
||4|PS_ON|||
||5|+Remote Sense|||
||6|-Remote Sense|||
||7|DONOTUSE|||
||8|+5V_AUX_RTN|||



Murata Power Solutions, Inc. 

11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001  and 14001  REGISTERED 

## **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. 

- _**© 2016 Murata Power Solutions, Inc.**_ 

**www.murata-ps.com/support** 

PQC250.A03 Page 7 of 7