LM4755TSNOPB - NATIONAL SEMICONDUCTOR

Rev. 06.20.12_110

LCC250 Series

1 of 7

Embedded Power for

Business-Critical Continuity

LCC250

250 Watts

Convection/Conduction

Mounting

Special Features

•250WFullpoweratelevated

temperatures

•WideOperatingTemperature

Range suited for outdoor

application

•IP64Rated

•Conduction-cooledorconvection

•DifferentialRemoteSense

•OutputAdjust

•OutputOn/Off(Positiveor

Negative logic user selectable)

Compliance

•EMIClassB

•EN61000Immunity

•MIL-STD-461E:CE101;CE102;

CS101;CS114

TotalPower: 250 W

#ofOutputs: Single

Output: 12,24,48V

Electrical Specifications

Safety

Input

InputRange: 90-264Vac(Operating)

115/230Vac(Nominal)

Frequency: 47-63Hz

InputFusing: InternalfuseonbothLandNlines

InrushCurrent: 50A

PowerFactor: > 0.92 Full load

Harmonics: MeetsEN61000-3-2;MIL-STD-461E:CE101;CE102;CS101;CS104

InputCurrent: 3.4A@90Vacfullload

HoldUpTime: 16msminimumat115Vac;100%load

Efficiency:

230Vac;100%load

12V-89%typical

24V-91%typical

48V-91.5%typical

LeakageCurrent: <275µAat230Vac

•UL+CSA:60950-12ndEd.

60601-11stEd.

  ES60601-1

•TUV:60950-12ndEd.

                              6 06 0 1- 1  3r d  Ed . 

  61347-1;2-13

•C B  S c h e m e :   I E C  6 0 9 5 0 - 1  2 n d  E d 

IEC61347-1;2-13

•ChinaCCC5

•CEMark

Rev. 06.20.12_110

LCC250 Series

2 of 7

Embedded Power for

Business-Critical Continuity

OperatingTemperatureRange: Suffix4P(Conduction):-40°Cto+85°CBaseplateTemperature

Suffix7P(Convection):-40°Cto+85°CAmbientTemperature

StorageTemperature: -40°Cto85°C

Humidity: 10%to100%(Condensing&Non-Condensing)

Altitude: Operating:13,000feet

Non-Operating:50,000feet

Shock: IEC68-2-27

Vibration: IEC68-2-6/IEC721-3-2

IngressProtection: IP64Rated

MTBF(Calculated): >780,000hoursat100%load;Lowline;TelcordiaSR-332

Environmental Specifications

Output

OutputRating:

12V@20.8A

24V@10.4A

48V@5.2A

SetPoint: ±0.2% Factory set point

TotalRegulationRange: ±2% Line/Load/Temperature

RatedLoad: 250 W maximum

MinimumLoad: 0ALoad No loss of regulation

CapacitiveLoad: 0-330µF/Amp

ConstantOutputVoltage

AdjustmentRange:

12V:+10/-10%

24V:+14.6/-15%

48V:+15%/-15%

AdjustviaVR2

ConstantOutputCurrent

AdjustmentRange:

+0/-50% AdjustviaVR1

CCmodesupportedfromVonominaldownto80%Vo

OutputRippleandNoise: 1% 0to330μF/Amp

TransientResponse: ±5%Vomaxtransient;

recovery < 500 µs max

50%LoadStep@1A/µs

StepLoadverifiedat:50%to100%Load;90-264Vac

input;Capacitiveloadfrom0to330μF/Amp

Remotesense: CapableofStableOffsetof±0.5Vdcat

output cable termination

+SENSE(RedWire);-SENSE(BlackWire)

OutputOn/Off: RemoteOn/Offreferencedtosecondary

side. Positive or Negative logic user

selectable via CN2. Factory default is

Positive logic

On/Off(OrangeWire);On/OffReturn(WhiteWire)

OvercurrentProtection(OCP): ≤150%Io Auto-recovery

OvervoltageProtection(OVP): 110%to135%Vo Latchingmode;RequiresinputACrecycle

OvertemperatureProtection(OTP): Auto-recovery;hiccupmode

OutputIsolation 4000VacInputtoOutput

1500VacInputtoGround

500VacOutputtoGround

Rev. 06.20.12_110

LCC250 Series

3 of 7

Embedded Power for

Business-Critical Continuity

OrderingInformation

Model Number Output AdjustmentRange OutputCurrent OutputRipple

P/P1

Line/Load

Regulation

Min Max

LCC250-12U-4P 12V ±10% 0A 20.8A 1%2±2%

LCC250-12U-4PE 12V ±10% 0A 20.8A 1%2±2%

LCC250-12U-7P 12V ±10% 0A 20.8A 1%2±2%

LCC250-12U-7PE 12V ±10% 0A 20.8A 1%2±2%

LCC250-24U-4P 24V +14.6/-15% 0A 10.4A 1%3±2%

LCC250-24U-4PE 24V +14.6/-15% 0A 10.4A 1%3±2%

LCC250-24U-7P 24V +14.6/-15% 0A 10.4A 1%3±2%

LCC250-24U-7PE 24V +14.6/-15% 0A 10.4A 1%3±2%

LCC250-48U-4P 48V ±15% 0A 5.2A 1%4±2%

LCC250-48U-4PE 48V ±15% 0A 5.2A 1%4±2%

LCC250-48U-7P 48V ±15% 0A 5.2A 1%4±2%

LCC250-48U-7PE 48V ±15% 0A 5.2A 1%4±2%

1.Outputripplemeasuredattheendoftheoutputcableterminatedwith10µFtantalumcapinparallelwith0.1µF ceramic capacitor.

2.12V:1%limitisachievedwith2X820uF/16Vexternalcap(e.g.PLG1C821MDO1fromNichiconorequivalent).Otherwise,maximumlimitsare1.5%at

Ta≥0°Cand2.0%maxatTa<0°C.

3.24V:1%limitisachievedwith2X820uF/35Vexternalcap(e.g.UPM1V821MHD1TOfromNichiconorequivalent).Otherwise,maximumlimitsare1.5%

atTa≥-10°C.2.0%maxrippleatTa<-10°Cismetwithbelowexternalcapacitance:

4.48V:1%limitisachievedwith3X470uF/63Vexternalcap.Otherwise,maximumlimitsare1.5%maxatTa≥0°Cand2%maxatTa<0°C.

5.SafetyApprovals:ChinaCCCapprovalappliestopartnumberswith“-xxE”suffixesonly.

6.Warranty:2years

AmbientTemperature(°C) -20 -25 -30 -35 -40

RecommendedExternalCapacitors(µF) 1000 2200 3300 12000 22000

Rev. 06.20.12_110

LCC250 Series

4 of 7

Embedded Power for

Business-Critical Continuity

Fig 4. 12 V Efficiency Curve

25 35 45 55 65 75 85

Output current(A)

Ambient Temperature (°C)

LCC250-24U-7P (Convection)

VIN = 115 VAC

100 LFM

200 LFM

300 LFM

400 LFM

Fig 5. 24 V “4P” Suffix (Conduction) Output

Current Derating

25 35 45 55 65 75 85 95

Output current(A)

Baseplate Temperature (°C)

LCC250-24U-4P (Conduction)

90 Vac

115 Vac

230 Vac

264 Vac

Fig 2. 12 V “7P” Suffix (Convection) Output

Current Derating at 115 Vac

25 35 45 55 65 75 85 95

Output Current (A)

Baseplate Temperature (°C)

LCC250-12U-4P (Conduction)

230 Vac

180 Vac

115 Vac

90 Vac

115/180/230 Vac

Fig 1. 12 V “4P” Suffix (Conduction) Output

Current Derating

Fig 3. 12 V “7P” Suffix (Convection) Output

Current Derating at 230 Vac

Fig 6. 24 V “7P” Suffix (Convection) Output

Current Derating at 115 Vac

65%

70%

75%

80%

85%

90%

95%

0% 20% 40% 60%80% 100%

Efficiency (%)

Output Load

12V Efficiency vs. Input Line

Vin = 115 Vac

Vin = 230 Vac

25 35 45 55 65 75 85

Output Current (A)

Ambient Temperature (°C)

LCC250-12U-7P (Convection)

VIN = 115 VAC

NAT CONV

100 LFM

200 LFM

300 LFM

400 LFM

25 35 45 55 65 75 85

Output Current (A)

Ambient Temperature (°C)

LCC250-12U-7P (Convection)

VIN = 230 Vac

NAT CONV

100 LFM

200 LFM

300 LFM

400 LFM

25 35 45 55 65 75 85

Output current (A)

Ambient Temperature (°C)

LCC250-24U-7P (Convection)

VIN = 230 VAC

100 LFM

200 LFM

300 LFM

400 LFM

Rev. 06.20.12_110

LCC250 Series

5 of 7

Embedded Power for

Business-Critical Continuity

Fig 10. 48 V “7P” Suffix (Convection) Output

Current Derating at 115 Vac

25 35 45 55 65 75 85

Output current (A)

Ambient Temperature (°C)

LCC250-48U-7P (Convection)

VIN = 230 VAC

100 LFM

200 LFM

300 LFM

400 LFM

Fig 11. 48 V “7P” Suffix (Convection) Output

Current Derating at 230 Vac

65%

70%

75%

80%

85%

90%

95%

0% 20% 40% 60%80% 100%

Efficiency (%)

Output Load

48 V Efficiency vs. Input Line

Vin=115 Vac

Vin=230 Vac

25 35 45 55 65 75 85

Output Current (A)

Ambient Temperature (°C)

LCC250-48U-7P (Convection)

VIN = 115 VAC

100 LFM

200 LFM

300 LFM

400 LFM

65%

70%

75%

80%

85%

90%

95%

0% 20% 40% 60%80% 100%

Efficiency (%)

Output Load

24 V Efficiency vs. Input Line

115 Vac

230 Vac

Fig 8. 24 V Efficiency Curve

25 35 45 55 65 75 85 95

Output Current (A)

Baseplate Temperature (°C)

LCC250-48U-4P (Conduction)

90 Vac

115 Vac

230 Vac

264 Vac

Fig 7. 24 V “7P” Suffix (Convection) Output

Current Derating at 230 Vac

Fig 9. 48 V “4P” Suffix (Conduction) Output

Current Derating

Fig 12. 48 V Efficiency Curve

Rev. 06.20.12_110

LCC250 Series

6 of 7

Embedded Power for

Business-Critical Continuity

POTTING TRIM LABEL

MODEL LABEL

6-Ø 3.6 ± 0.10 L2

DC OUTPUT

AC INPUT

(4 - 63.5)

(2 - 93.8)

101.4 ± 0.6

CONTROL

BAM

BUSHING

ADJUST DIMMING

(VR1)

ADJUST REMOTE ON/OFF

(CN2)

SEE DETAIL C

ADJUST OUTPUT VOLTAGE

(VR2)

VIEW M

(NEGATIVE POLARITY)

OFF

(POSITIVE POLARITY)

DETAIL C

37.6 ± 0.6

LCC250-12U-7P

27.9 ± 0.6

LCC250-12U-4P

0.30 SERIAL NO. BARCODE LABEL

177.6 ± 0.6

(2 - 139.7)

(2 - 119.4)

(2 - 59.7)

MechanicalDrawings

12V

MODEL LABEL

DC OUTPUT

AC INPUT

POTTING TRIM LABEL

BUSHING

ADJUST DIMMING

(VR1)

ADJUST REMOTE ON/OFF

(CN2)

SEE DETAIL C

ADJUST OUTPUT VOLTAGE

(VR2)

VIEW M

(NEGATIVE POLARITY)

OFF

(POSITIVE POLARITY)

DETAIL C

37.6 ± 0.6

LCC250-xxU-7P

27.9 ± 0.6

LCC250-xxU-4P

177.6 ± 0.6

(2 - 139.7)

(2 - 119.4)

(2 - 59.7)

(4 - 63.5)

(2 - 93.8)

101.4 ± 0.6

CONTROL

6-Ø 3.6 ± 0.10

0.30

(FOR 4PE/7PE ONLY)

SERIAL NO. BARCODE LABEL

24V/48V

Rev. 06.20.12_110

LCC250 Series

7 of 7

Embedded Power for

Business-Critical Continuity

Americas

5810VanAllenWay

Carlsbad,CA92008

USA

Telephone:+17609304600

Facsimile: +17609300698

Europe (UK)

WaterfrontBusinessPark

MerryHill,Dudley

WestMidlands,DY51LX

UnitedKingdom

Telephone:+44(0)1384842211

Facsimile: +44(0)1384843355

Asia (HK)

14/F,LuPlaza

2WingYipStreet

KwunTong,Kowloon

HongKong

Telephone:+85221763333

Facsimile: +85221763888

Forglobalcontact,visit:

www.Emerson.com/EmbeddedPower

techsupport.embeddedpower

@emerson.com

Whileeveryprecautionhasbeentakentoensure

accuracyandcompletenessinthisliterature,Emerson

NetworkPowerassumesnoresponsibility,anddisclaims

allliabilityfordamagesresultingfromuseofthis

information or for any errors or omissions.

EmersonandtheEmersonNetworkPower

logoaretrademarksofEmersonElectricCo.

Allrightsreserved.

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ACPower

Connectivity

DCPower

Cable Length Designation Wire Color WireGauge

ACInputCable

L1=300±10mm

L=Live Brown AWG#18

N=Neutral Blue AWG#18

PE=PrimaryEarth Green/Yellow AWG#18

DCOutputCable

L2=300±10mm +Output Blue AWG#14

-Output Gray AWG#14

Control Cable

L3=300±10mm

Dimming Brown AWG#26

DimmingReturn Yellow AWG#26

ON/OFF Orange AWG#26

ON/OFFReturn White AWG#26

Sense Red AWG#26

Sense Return Black AWG#26