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Intel TFX12V System Cooling Considerations, Reliability, Applicable Documents, Document Title

Models: TFX12V

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7 System Cooling Considerations

TFX12V Power Supply Design Guide

Thin Form Factor with 12 V Connector

Version 2.0

7 System Cooling Considerations

The power supply fan location allows the system designer to utilize the airflow to help cool critical components such as the processor and chipset. Please note that the fan pulls air from the system, instead of blowing hot air in, so components must be placed such that airflow is directed across critical components. Cables, etc must not impede airflow.

For more information on system thermal design, please refer to http://www.formfactors.org/.

8 Reliability

The de-rating process promotes quality and high reliability. All electronic components should be designed with conservative device d-ratings for use in commercial and industrial environments.

9 Applicable Documents

The following documents support this design guide as additional reference material.

Document Title

FCC Rules Part 15, Class B

ICES-003: 1997, Class B

EN 55022: 1998 + Amendment A1:2000 Class B

CISPR 22: 1997, Class B

AS/NZS 3548:1995, Class B

EN 55024:1998

IEC 60950, 3rd ed., 1999

EN 60950: 2000

UL 60950, 3rd ed., 2000

CSA 22.2 No. 60950-00

Description

Title 47, Code of Federal Regulations, Part 15

Interference-Causing Equipment Standard – Digital Apparatus

Information Technology Equipment – Radio disturbance characteristics – Limits and methods of measurement

Information Technology Equipment – Radio disturbance characteristics – Limits and methods of measurement

Information Technology Equipment – Radio disturbance characteristics – Limits and methods of measurement

Information Technology Equipment – Immunity Characteristics – Limits and methods of measurement

Safety of Information Technology Equipment

Safety of Information Technology Equipment

Safety of Information Technology Equipment

Safety of Information Technology Equipment

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Intel TFX12V manual System Cooling Considerations, Reliability, Applicable Documents, Document Title, Description

Contents

Thin Form Factor with 12-Volt Connector Power Supply Design GuideTFX12V VersionIMPORTANT INFORMATION AND DISCLAIMERS Version Revision HistoryRelease Date Introduction ElectricalContents Mechanical SafetyEnvironmental Electromagnetic CompatibilityFigures Tables1 Introduction 1.1 TFX12V Scope1.2 TFX12V Overview 1.2.1 Small System Optimized Profile1.3.3 Main Power Connector 1.3.4 Separate Current Limit for 12V2 on the 2x2 Connector1.3 Key Changes for TFX12V Version 1.2.2 Improved AcousticsTerm Required Recommended Optional BA CFM Monotonically Noise 1.4 TerminologyDescription 2 Electrical 2.1 AC Input2.1.1 Input Over Current Protection 2.1.2 Inrush Current Limiting2.1.4.1 PRODUCT SAFETY 2.1.4 Regulatory2.1.4.2 ELECTROMAGNETIC CAMPATIBILITY 2.1.4.3 Other Certifications and/or Declarations2.2 DC Output 2.1.5 Catastrophic Failure Protection2.2.1 DC Voltage Regulation 2.2.2 Remote Sensing2.2.3 Typical Power Distribution Table 3. Typical Power Distribution for 180 W TFX12V ConfigurationsFigure 2. Cross Loading Graph for 180W Configuration w atts12V power watts Table 4. Typical Power Distribution for 220 W TFX12V ConfigurationsFigure 3. Cross Loading Graph for 220W Configuration 220W Cross Regulation 5V rail + 3.3V rail vsTable 5. Typical Power Distribution for 240 W TFX12V Configurations 12V power wattsFigure 4. Cross Loading Graph for 240W Configuration 2.2.4 Power Limit / Hazardous Energy Levels 2.2.5 Efficiency GeneralTable 6 Typical Power Distribution for 270 W SFX12V Configurations Figure 5 Cross Loading Graph for 270W ConfigurationTable 7 Efficiency Vs Load Table 8. Loading Table for Efficiency MeasurementsLoading Required Minimum Efficiency Recommended Minimum Efficiency Full load2.2.6 Other Low Power System Requirements 2.2.7 Output Ripple/Noise2.2.5.1 Energy Star Table 9. Energy Star Input Power Consumption2.2.8 Output Transient Response Figure 6. Differential Noise Test SetupTable 11. DC Output Transient Step Sizes Maximum Step Size2.2.11 +5 VDC / +3.3 VDC Power Sequencing 2.2.9 Capacitive Load2.2.10 Closed-loop Stability 2.2.12 Voltage Hold-up Time2.3 Timing / Housekeeping / Control Figure 7. Power Supply Timing~ ~ ~ ~ PSON#2.3.2 PSON# 2.3.1 PWROKTable 13. PWROK Signal Characteristics 2.3.4 Power-on Time 2.3.3 +5 VSBTable 14. PSON# Signal Characteristics Figure 8. PSON# Signal Characteristics2.3.7 Reset after Shutdown 2.3.8 +5 VSB at AC Power-down2.4 Output Protection 2.3.5 Rise Time2.4.5 Over-temperature Protection 2.4.2 Short-circuit Protection2.4.3 No-load Operation 2.4.4 Over Current Protection3 Mechanical 3.2 Physical Dimensions3.1 Labeling /Marking TFX12V Power Supply Design Guide Thin Form Factor with 12-V Connector VersionTFX12V Power Supply Design Guide Thin Form Factor with 12 V Connector Figure 10. Power Supply Mounting Slot DetailVersion 3.3 Mounting Options Figure 13. Suggested Mounting Tab chassis feature 3.4 Chassis RequirementsFigure 12. Suggested TFX12V Chassis Cutout 3.6 AC Connector 3.5 Airflow / FanFigure 14. TFX12V Connectors Pin-side view, not to scale 3.7 DC ConnectorsMain Power Connector 3.7.1 TFX12V Main Power Connector 3.7.2 Peripheral Connectors3.7.3 Floppy Drive Connector Connector MOLEX* 39-01-2240 or equivalent3.7.4 +12 V Power Connector 3.7.5 Serial ATA Power ConnectorFigure 15. Serial ATA Connector Signal4.1 Temperature 4 Environmental4.2 Thermal Shock Shipping 4.3 Relative Humidity4.7 Acoustics 4.6 Random Vibration4.8 Ecological Requirements 5.1 North America 5 Safety5.2 International 6.1 Emissions 6 Electromagnetic Compatibility6.2 Immunity 6.3 Input Line Current Harmonic Content 6.4 Magnetic Leakage Fields6.5 Voltage Fluctuations and Flicker Table 16. Harmonic Limits, Class D Equipment7 System Cooling Considerations 8 Reliability9 Applicable Documents Document Title