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Intel ATX12V manual Main Power Connector, Pson#

Models: ATX12V

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ATX12V Power Supply Design Guide

Version 2.0

1	13
.	.
+33V.	+33V.
.	-12V
+33V.	-12V
COM	COM
+5V	PSON#
COM	COM
+5V	COM
COM	COM
CO	COM
PWR ON	NC
PWR_	NC
+5VSB	+5V
+12V1	+5V
+12V1	+5V
+3.3V.3V	COM

Main Power Connector

Figure 10. ATX12V Power Supply Connectors (Pin-side view, not to scale)

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Intel ATX12V manual Main Power Connector, Pson#

Contents

Version ATX12V Power Supply Design GuideIMPORTANT INFORMATION AND DISCLAIMERS Introduction ContentsApplicable Documents Electrical4. Mechanical Safety5. Environmental 6. Electromagnetic CompatibilityATX12V Power Supply Design Guide Version FiguresTables 1.1. Scope 1. Introduction1.2.1. Increased +12 VDC output capability 1.2.2. Minimum Efficiency1.2.3. Main Power Connector 1.2.4. Separate current limit for 12V2 on the 2x2 connector1.3 Terminology 2. Applicable Documents Document TitleDescription 3.1. AC Input 3. Electrical3.1.1. Input Over-current Protection 3.1.2. Inrush Current Limiting3.1.4. Regulatory 3.1.3. Input Under-voltagePRODUCT SAFETY ELECTROMAGNETIC CAMPATIBILITY3.2. DC Output 3.1.5. Catastrophic Failure Protection3.2.1. DC Voltage Regulation 3.2.2. Remote Sensing 3.2.3. Typical Power Distribution3.2.3.1. ATX12V Configurations Table 3. Typical Power Distribution for a 250 W ATX12V ConfigurationFigure 1. Cross Loading Graph for 250W Configuration Figure 2. Cross Loading Graph for 300W Configuration Table 4. Typical Power Distribution for a 300 W ATX12V ConfigurationFigure 3. Cross Loading Graph for 350W Configuration Table 5. Typical Power Distribution for a 350 W ATX12V ConfigurationFigure 4. Cross Loading Graph for 400W Configuration Table 6. Typical Power Distribution for a 400 W ATX12V Configuration3.2.5. Efficiency 3.2.4. Power Limit / Hazardous Energy Levels3.2.5.1. General Table 7. Minimum Efficiency Vs LoadTable 8. Loading Table for Efficiency Measurements ATX12V Power Supply Design GuideTable 9. Energy Star Input Power Consumption 3.2.6. Output Ripple/Noise3.2.5.3. Other Low Power System Requirements 3.2.5.2. Energy StarPower Supply Figure 5. Differential Noise Test SetupTable 10. DC Output Noise/Ripple Scope3.2.8. Capacitive Load 3.2.7. Output Transient ResponseTable 11. DC Output Transient Step Sizes Table 12. Output Capacitive Loads3.3. Timing / Housekeeping / Control 3.2.10. +5 VDC / +3.3 VDC Power Sequencing3.2.9. Closed-loop Stability 3.2.11. Voltage Hold-up Time3.3.1. PWROK 3.3.2. PSON#Table 13. PWROK Signal Characteristics 3.3.3. +5 VSB Table 14. PSON# Signal CharacteristicsFigure 7. PSON# Signal Characteristics 3.3.7. Reset after Shutdown 3.3.4. Power-on Time3.3.8. +5 VSB at AC Power-down 3.3.5. Risetime3.4.1. Over-voltage Protection 3.4. Output Protection3.4.2. Short-circuit Protection 3.4.3. No-load Operation3.4.6. Output Bypass 3.4.5. Over-temperature Protection4.2. Physical Dimensions 4. Mechanical4.1. Labeling / Marking Air inlet grill, 55% open area Second optional fan may go in this locationfan may be located Second optionalin optional venting area or on topside4.3. Airflow / Fan 4.5. DC Connectors 4.4. AC ConnectorPSON# Main Power Connector4.5.1. ATX Main Power Connector 4.5.2. +12 V Power Connector 4.5.3. Peripheral ConnectorsATX12V Power Supply Design Guide Version 4.5.5. Floppy Drive Connector 4.5.4. Serial ATA Power ConnectorThis is a required connector for systems with Serial ATA devices Figure 11. Serial ATA ConnectorEnvironmental TemperatureThermal Shock Shipping Humidity5.6. Random Vibration 5.5. Mechanical Shock5.7. Acoustics ATX12V Power Supply Design Guide Version 2.0 Final Review Copy6. Electromagnetic Compatibility 6.1. Emissions6.2. Immunity 6.3. Input Line Current Harmonic Content and Line Flicker 6.4. Magnetic Leakage FieldsTable 16. Harmonic Limits, Class D Equipment 7.1. Component De-rating 7. Reliability8.1. North America 8. Safety8.3. Proscribed Materials 8.2. International