Intel TFX12V manual System Cooling Considerations, Reliability, Applicable Documents

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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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Contents Thin Form Factor with 12-Volt Connector TFX12VImportant Information and Disclaimers Revision History Version Release DateContents Mechanical Figures Introduction TFX12V ScopeTFX12V Overview Small System Optimized ProfileKey Changes for TFX12V Version Term Required Recommended Optional TerminologyMonotonically Noise Description Electrical AC InputInput Over Current Protection Inrush Current LimitingProduct Safety RegulatoryDC Output Catastrophic Failure ProtectionDC Voltage Regulation Remote SensingTypical Power Distribution Typical Power Distribution for 180 W TFX12V ConfigurationsTypical Power Distribution for 220 W TFX12V Configurations Cross Loading Graph for 220W ConfigurationTypical Power Distribution for 240 W TFX12V Configurations Cross Loading Graph for 240W ConfigurationTypical Power Distribution for 270 W SFX12V Configurations Power Limit / Hazardous Energy LevelsEfficiency General Efficiency Vs Load Loading Table for Efficiency MeasurementsOther Low Power System Requirements Energy Star Input Power ConsumptionOutput Ripple/Noise DC Output Noise/RippleOutput Transient Response Maximum Step Size Amps11 +5 VDC / +3.3 VDC Power Sequencing Capacitive LoadClosed-loop Stability Voltage Hold-up TimePower Supply Timing Timing / Housekeeping / ControlPwrok Pwrok Signal CharacteristicsPSON# PSON# Signal Characteristics Power-on Time3 +5 VSB Output Protection Over-temperature Protection Short-circuit ProtectionNo-load Operation Over Current ProtectionMechanical Physical DimensionsLabeling /Marking Page Power Supply Mounting Slot Detail Mounting Options Chassis Requirements Suggested TFX12V Chassis CutoutAC Connector Airflow / FanDC Connectors TFX12V Connectors Pin-side view, not to scalePeripheral Connectors 1 TFX12V Main Power ConnectorFloppy Drive Connector 4 +12 V Power Connector Serial ATA Power ConnectorEnvironmental Acoustics Random VibrationEcological Requirements North America SafetyInternational Emissions Electromagnetic CompatibilityImmunity Input Line Current Harmonic Content Magnetic Leakage FieldsVoltage Fluctuations and Flicker Harmonic Limits, Class D EquipmentReliability System Cooling ConsiderationsApplicable Documents

TFX12V specifications

The Intel TFX12V is a power supply unit (PSU) designed specifically for compact desktop systems, catering to the needs of PC builders who prioritize space-efficient components without compromising on performance. Intel's TFX12V specification defines the form factor and power delivery standards, ensuring compatibility across a wide range of motherboards and peripherals.

One of the main features of the TFX12V is its slimline design. Measuring 85mm in height, 65mm in width, and 150mm in depth, this PSU fits into smaller case designs, making it ideal for compact desktops or media centers. Despite its small size, the TFX12V delivers robust power, typically ranging from 300W to 400W. This output is sufficient for everyday computing tasks, light gaming, and media consumption, allowing users to create space-saving systems without sacrificing functionality.

The TFX12V power supply adheres to the ATX power supply standard, featuring a 24-pin ATX connector, which ensures broad compatibility with modern motherboards. Additionally, the TFX12V includes connections for other crucial components, such as the 4-pin CPU power connector and multiple SATA and PCIe connectors, enabling the build of systems with modern graphics cards and storage solutions.

The efficiency of the TFX12V is another significant aspect. Many models are designed to meet or exceed the 80 PLUS certification, which indicates at least 80% efficiency at 20%, 50%, and 100% loads. High efficiency not only reduces energy consumption but also minimizes heat generation, leading to quieter operation due to lower fan speeds.

In terms of safety and reliability, TFX12V power supplies come equipped with standard protections against over-voltage, under-voltage, and short-circuits. These safety features safeguard the valuable components of a PC from potential power surges or failures.

Furthermore, the product lifecycle of the Intel TFX12V often ensures access to advanced technologies, including pulsating load regulation and enhanced thermal management technologies. These features contribute to a stable power output and improved performance, even under load.

In summary, the Intel TFX12V power supply unit combines compactness, efficiency, and reliability, making it an attractive choice for users looking to build a small form-factor PC without compromising on essential features or quality. With its robust performance and modern technology, it meets the demands of today's computing needs effectively.