Intel SE7221BK1-E manual Absolute Maximum Ratings, AC Line Transient Specification

SE7221BK1-ETechnical Product Specification

10.2.3AC Line Transient Specification

AC line transient conditions shall be defined as “sag” and “surge” conditions. “Sag” conditions are also commonly referred to as “brownout”, these conditions will be defined as the AC line voltage dropping below nominal voltage conditions. “Surge” will be defined to refer to conditions when the AC line voltage rises above nominal voltage.

The power supply shall meet the requirements under the following AC line sag and surge conditions.

Table 83. AC Line Sag Transient Performance

AC Line Sag

Duration	Sag	Operating AC Voltage	Line Frequency	Performance Criteria
Continuous	10%	Nominal AC Voltage ranges	50/60Hz	No loss of function or performance
0 to 1 AC	100%	Nominal AC Voltage ranges	50/60Hz	No loss of function or performance
cycle
> 1 AC cycle	>10%	Nominal AC Voltage ranges	50/60Hz	Loss of function acceptable, self
				recoverable

Table 84. AC Line Surge Transient Performance

AC Line Surge

Duration	Surge	Operating AC Voltage	Line Frequency	Performance Criteria
Continuous	10%	Nominal AC Voltages	50/60Hz	No loss of function or performance
0 to ½ AC	30%	Mid-point of nominal AC	50/60Hz	No loss of function or performance
cycle		Voltages

10.2.4AC Line Fast Transient (EFT) Specification

The power supply shall meet the EN61000-4-5directive and any additional requirements in IEC1000-4-5:1995and the Level 3 requirements for surge-withstand capability, with the following conditions and exceptions:

•These input transients must not cause any out-of-regulation conditions, such as overshoot and undershoot, nor must it cause any nuisance trips of any of the power supply protection circuits.

•The surge-withstand test must not produce damage to the power supply.

•The supply must meet surge-withstand test conditions under maximum and minimum DC- output load conditions.

11. Absolute Maximum Ratings

Operating the board at conditions beyond those shown in the following table may cause permanent damage to the system. The table is provided for stress testing purposes only. Exposure to absolute maximum rating conditions for extended periods may affect system reliability.

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