Intel ATX 0.9 User Manual

Intel ATXPower Supply Design GuideVersion 0.9

Intel ATX Power Supply Design GuideVersion 0.9Page 103.1.4.2.3 Ring Wave, ANSI C62.45-1992The crest value of the first half peak of the injected osci

Intel ATX Power Supply Design GuideVersion 0.9Page 113.1.5 Catastrophic Failure ProtectionThe primary circuit design and the components specified in

Intel ATX Power Supply Design GuideVersion 0.9Page 123.3 Typical Power DistributionAlthough power requirements and distributions will depend on the s

Intel ATX Power Supply Design GuideVersion 0.9Page 13Table 6: Typical Power Distribution for a 250 W ConfigurationOutputMin.Current(amps)Max.Current(

Intel ATX Power Supply Design GuideVersion 0.9Page 143.3.3 Output Ripple/NoiseThe following output ripple/noise requirements should be met throughout

Intel ATX Power Supply Design GuideVersion 0.9Page 153.3.7 +5VDC/+3.3VDC Power SequencingThe +5VDC output level must be equal to or greater than the

Intel ATX Power Supply Design GuideVersion 0.9Page 163.4 Timing / Housekeeping / ControlPS_ON#+5VDC/+3.3VDC O/PPWR_OKPWR_OK Sense Level = 95% of nomi

Intel ATX Power Supply Design GuideVersion 0.9Page 173.4.2 PS_ON#PS_ON# is an active-low, TTL-compatible signal that allows a motherboard to remotelyc

Intel ATX Power Supply Design GuideVersion 0.9Page 183.4.5 RisetimeThe output voltages shall rise from <10% of nominal to within the regulation ran

Intel ATX Power Supply Design GuideVersion 0.9Page 193.5 Output Protection3.5.1 Overvoltage ProtectionThe overvoltage sense circuitry and reference sh

Intel ATX Power Supply Design GuideVersion 0.9Page 2IMPORTANT INFORMATION AND DISCLAIMERS1. INTEL CORPORATION (AND ANY CONTRIBUTOR) MAKES NOWARRANTIES

Intel ATX Power Supply Design GuideVersion 0.9Page 204. Mechanical Requirements4.1 Labeling / MarkingEach supply shall be marked with the following,

Intel ATX Power Supply Design GuideVersion 0.9Page 213. Tolerances: X +/- 1 X.X +/- 0.54. If a wire grill is required for acoustics or therm

Intel ATX Power Supply Design GuideVersion 0.9Page 2253 REFWIRE HARNESS16 REF150 REF20.0(2X)4.0X694.011.0 x 5.0 cutouts (4X);min 6.0 clearance undercu

Intel ATX Power Supply Design GuideVersion 0.9Page 234.3 Airflow / FanIn general, exhausting warm air from the chassis enclosure via a power supply f

Intel ATX Power Supply Design GuideVersion 0.9Page 24+3.3VDCCOM+5VDCCOM+5VDCCOMPWR_OK+5VSB+12VDC+3.3VDC-12VDCCOMPS_ON#COMCOMCOM-5VDC+5VDC+5VDCPin 11Pi

Intel ATX Power Supply Design GuideVersion 0.9Page 254.5.2 Auxiliary Power Connector(for 250 W and 300 W Configurations)Connector: Molex 90331-0010

Intel ATX Power Supply Design GuideVersion 0.9Page 265. Environmental Requirements5.1 TemperatureOperating ambient +10 °C min+50 °C max(At full load,

Intel ATX Power Supply Design GuideVersion 0.9Page 275.6 Random VibrationNonoperating 0.01 g²/Hz at 5 Hz, sloping to 0.02 g²/Hz at 20 Hz, andmaintaini

Intel ATX Power Supply Design GuideVersion 0.9Page 286. Electromagnetic Compatibility6.1 EMIThe power supply shall comply with CISPR 22, Class B, for

Intel ATX Power Supply Design GuideVersion 0.9Page 297. Reliability7.1 Component DeratingThe following component derating guidelines shall be followed

Intel ATX Power Supply Design GuideVersion 0.9Page 3Contents1. Scope...

Intel ATX Power Supply Design GuideVersion 0.9Page 308. Safety Requirements8.1 North AmericaThe power supply must be certified by UL or CSA for use in

Intel ATX Power Supply Design GuideVersion 0.9Page 318.2 InternationalThe vendor must provide a complete CB certificate and test report to IEC 950, 2n

Intel ATX Power Supply Design GuideVersion 0.9Page 44.4 AC Connector ...

Intel ATX Power Supply Design GuideVersion 0.9Page 5FiguresFigure 1: Power Supply Timing...

Intel ATX Power Supply Design GuideVersion 0.9Page 61. ScopeThis document outlines a reference ATX power supply that complies with the ATXSpecificatio

Intel ATX Power Supply Design GuideVersion 0.9Page 72. Applicable DocumentsThe latest revision in effect of the following documents forms a part of th

Intel ATX Power Supply Design GuideVersion 0.9Page 83. Electrical SpecificationThe electrical requirements that follow are to be met over the environm

Intel ATX Power Supply Design GuideVersion 0.9Page 93.1.4 Immunity3.1.4.1 Slow TransientsThe DC output(s) shall not exceed the limits specified in Se