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Intel manual TFX12V Power Supply Design Guide Thin Form Factor with 12-V Connector, Version

Models: TFX12V

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TFX12V Power Supply Design Guide

Thin Form Factor with 12-V Connector

Version 2.0

Figure 9. Power Supply Dimensions and Recommended Feature Placements (not to scale)

Page 27

Image 27

Intel manual TFX12V Power Supply Design Guide Thin Form Factor with 12-V Connector, Version

Contents

Version Thin Form Factor with 12-Volt ConnectorPower Supply Design Guide TFX12VIMPORTANT INFORMATION AND DISCLAIMERS Revision History VersionRelease Date Electrical IntroductionContents Electromagnetic Compatibility MechanicalSafety EnvironmentalTables Figures1.2.1 Small System Optimized Profile 1 Introduction1.1 TFX12V Scope 1.2 TFX12V Overview1.2.2 Improved Acoustics 1.3.3 Main Power Connector1.3.4 Separate Current Limit for 12V2 on the 2x2 Connector 1.3 Key Changes for TFX12V Version1.4 Terminology Term Required Recommended Optional BA CFM Monotonically NoiseDescription 2.1.2 Inrush Current Limiting 2 Electrical2.1 AC Input 2.1.1 Input Over Current Protection2.1.4.3 Other Certifications and/or Declarations 2.1.4.1 PRODUCT SAFETY2.1.4 Regulatory 2.1.4.2 ELECTROMAGNETIC CAMPATIBILITY2.2.2 Remote Sensing 2.2 DC Output2.1.5 Catastrophic Failure Protection 2.2.1 DC Voltage Regulationw atts 2.2.3 Typical Power DistributionTable 3. Typical Power Distribution for 180 W TFX12V Configurations Figure 2. Cross Loading Graph for 180W Configuration220W Cross Regulation 5V rail + 3.3V rail vs 12V power wattsTable 4. Typical Power Distribution for 220 W TFX12V Configurations Figure 3. Cross Loading Graph for 220W Configuration12V power watts Table 5. Typical Power Distribution for 240 W TFX12V ConfigurationsFigure 4. Cross Loading Graph for 240W Configuration Figure 5 Cross Loading Graph for 270W Configuration 2.2.4 Power Limit / Hazardous Energy Levels2.2.5 Efficiency General Table 6 Typical Power Distribution for 270 W SFX12V ConfigurationsFull load Table 7 Efficiency Vs LoadTable 8. Loading Table for Efficiency Measurements Loading Required Minimum Efficiency Recommended Minimum EfficiencyTable 9. Energy Star Input Power Consumption 2.2.6 Other Low Power System Requirements2.2.7 Output Ripple/Noise 2.2.5.1 Energy StarMaximum Step Size 2.2.8 Output Transient ResponseFigure 6. Differential Noise Test Setup Table 11. DC Output Transient Step Sizes2.2.12 Voltage Hold-up Time 2.2.11 +5 VDC / +3.3 VDC Power Sequencing2.2.9 Capacitive Load 2.2.10 Closed-loop StabilityPSON# 2.3 Timing / Housekeeping / ControlFigure 7. Power Supply Timing ~ ~ ~ ~2.3.1 PWROK 2.3.2 PSON#Table 13. PWROK Signal Characteristics Figure 8. PSON# Signal Characteristics 2.3.4 Power-on Time2.3.3 +5 VSB Table 14. PSON# Signal Characteristics2.3.5 Rise Time 2.3.7 Reset after Shutdown2.3.8 +5 VSB at AC Power-down 2.4 Output Protection2.4.4 Over Current Protection 2.4.5 Over-temperature Protection2.4.2 Short-circuit Protection 2.4.3 No-load Operation3.2 Physical Dimensions 3 Mechanical3.1 Labeling /Marking Version TFX12V Power Supply Design Guide Thin Form Factor with 12-V ConnectorFigure 10. Power Supply Mounting Slot Detail TFX12V Power Supply Design Guide Thin Form Factor with 12 V ConnectorVersion 3.3 Mounting Options 3.4 Chassis Requirements Figure 13. Suggested Mounting Tab chassis featureFigure 12. Suggested TFX12V Chassis Cutout 3.5 Airflow / Fan 3.6 AC Connector3.7 DC Connectors Figure 14. TFX12V Connectors Pin-side view, not to scaleMain Power Connector Connector MOLEX* 39-01-2240 or equivalent 3.7.1 TFX12V Main Power Connector3.7.2 Peripheral Connectors 3.7.3 Floppy Drive ConnectorSignal 3.7.4 +12 V Power Connector3.7.5 Serial ATA Power Connector Figure 15. Serial ATA Connector4.3 Relative Humidity 4.1 Temperature4 Environmental 4.2 Thermal Shock Shipping4.6 Random Vibration 4.7 Acoustics4.8 Ecological Requirements 5 Safety 5.1 North America5.2 International 6 Electromagnetic Compatibility 6.1 Emissions6.2 Immunity Table 16. Harmonic Limits, Class D Equipment 6.3 Input Line Current Harmonic Content6.4 Magnetic Leakage Fields 6.5 Voltage Fluctuations and FlickerDocument Title 7 System Cooling Considerations8 Reliability 9 Applicable Documents