Intel ATX12V manual Loading Table for Efficiency Measurements

Page 18

ATX12V Power Supply Design Guide

Version 2.0

Table 8. Loading Table for Efficiency Measurements

 

 

 

250W (loading shown in Amps)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loading

 

+12V1

 

 

+12V2

 

 

+5V

 

 

+3.3V

 

 

Full

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

11.5

 

6.8

 

6.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Typical

 

3

 

5

 

3

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Light

 

2

 

2.4

 

0.3

 

0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

300W (loading shown in Amps)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loading

+12V1

 

 

+12V2

 

 

+5V

 

 

+3.3V

 

 

Full

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

12

 

8

 

7.5

 

 

Typical

 

4

 

8

 

3

 

4

 

 

Light

 

2

 

 

2

 

 

0.5

 

 

1.5

 

 

 

 

350W (loading shown in Amps)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loading

 

+12V1

 

 

+12V2

 

 

+5V

 

 

+3.3V

 

 

Full

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

13

 

9

 

10

 

 

Typical

 

5

 

9

 

3

 

5

 

 

Light

 

3

 

 

3

 

 

1.0

 

 

2.0

 

 

 

 

400W (loading shown in Amps)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loading

 

+12V1

 

 

+12V2

 

 

+5V

 

 

+3.3V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-12V

0.3

0.1

0.0

-12V

0.2

0.1

0.0

-12V

0.3

0.1

0.0

-12V

+5Vsb

1.0

1.0

1.0

+5Vsb

1.0

1.0

1.0

+5Vsb

1.0

1.0

1.0

+5Vsb

Full

12

14

9

11

0.3

1.0

Typical

5

9

3

5

0.1

1.0

Light

3

3

1

3

0.0

1.0

18

Page 17 Page 19
Image 18
Page 17 Page 19
Contents ATX12V VersionImportant Information and Disclaimers Contents Environmental SafetyMechanical Electromagnetic CompatibilityFigures TablesIncreased +12 VDC output capability IntroductionScope Minimum EfficiencyMain Power Connector Separate current limit for 12V2 on the 2x2 connectorTerminology Applicable Documents Document TitleDescription Input Over-current Protection ElectricalAC Input Inrush Current LimitingInput Under-voltage RegulatoryOther Certifications and/or Declarations DC Voltage Regulation DC OutputCatastrophic Failure Protection DC Output Voltage RegulationTypical Power Distribution Remote SensingMin Max Power12V power watts Current Output AmpsTypical Power Distribution for a 300 W ATX12V Configuration Cross Loading Graph for 300W ConfigurationTypical Power Distribution for a 350 W ATX12V Configuration Cross Loading Graph for 350W ConfigurationTypical Power Distribution for a 400 W ATX12V Configuration Min Max Peak Current Output AmpsGeneral Power Limit / Hazardous Energy LevelsEfficiency Minimum Efficiency Vs LoadLoading Table for Efficiency Measurements Output Ripple/Noise Energy Star Input Power ConsumptionOther Low Power System Requirements Energy StarDC Output Noise/Ripple Max. Ripple & Noise MVppDC Output Transient Step Sizes Output Transient ResponseCapacitive Load Output Capacitive LoadsClosed-loop Stability 10. +5 VDC / +3.3 VDC Power SequencingTiming / Housekeeping / Control Voltage Hold-up TimePwrok Signal Characteristics PwrokPSON# PSON# Signal Characteristics 3. +5 VSB8. +5 VSB at AC Power-down Power-on TimeReset after Shutdown RisetimeShort-circuit Protection Output ProtectionOver-voltage Protection No-load OperationOver-temperature Protection Output BypassPhysical Dimensions MechanicalLabeling / Marking Second optional fan may go in this location Second optional Airflow / Fan AC Connector DC Connectors+33V 12V +5V+12V1 +5V ATX Main Power Connector Pin Signal ColorConnector Molex 39-01-2040 or equivalent 2. +12 V Power ConnectorPeripheral Connectors Pin Signal AWG WireWire Signal Serial ATA Power ConnectorFloppy Drive Connector Connector AMP 171822-4 or equivalent Pin Signal AWG WireThermal Shock Shipping TemperatureEnvironmental HumidityMechanical Shock Random VibrationAcoustics Electromagnetic Compatibility EmissionsImmunity Input Line Current Harmonic Content and Line Flicker Magnetic Leakage FieldsHarmonic Limits, Class D Equipment Reliability Component De-ratingSafety North AmericaInternational Proscribed Materials
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