Intel SC5299WS User Manual

Parameter 

MIN 

Rated 

V

MAX

 

I

MAX

 

Start up VAC 

Power Off VAC 

Voltage (110) 

90 V

rms

 100-127 

V

rms

 140 

V

rms

 12 

A

1,3

 85VAC 

+/-

4VAC 

75VAC +/-
5VAC 

Voltage (220) 

180 V

rms

 200-240 

V

rms

 264 

V

rms

 7 

A

2,3

 

 

 

Frequency 

47 Hz 

50/60 

63 Hz 

 

 

 

1. 

Maximum input current at low input voltage range is measured at 90VAC, at max load. 

2. 

Maximum input current at high input voltage range is measured at 180VAC, at max load. 

3. 

This requirement is not used for determining agency input current markings. 

 

2.5.7.4 

Efficiency 

The following table provides the required minimum efficiency level at various loading conditions. 
These efficiency levels are provided at three different load levels: 100%, 50% and 20%. 
Efficiency is tested over an AC input voltage range of 115VAC to 220VAC. 

Loading 

100% of Maximum 

50% of Maximum 

20% of Maximum 

Recommended Efficiency 

68% 

72% 

65% 

 

2.5.7.5 

AC Line Dropout/Holdup 

Output Wattage 

Loading 

Holdup time 

670W 100% 

20 

ms 

 

An AC line dropout is defined to be when the AC input drops to 0VAC at any phase of the AC 
line for any length of time. During an AC dropout, the power supply meets dynamic voltage 
regulation requirements. An AC line dropout of any duration does not cause any tripping of 
control signals or protection circuits. If the AC dropout lasts longer than the hold up time, the 
power recovers and meets all turn on requirements. The power supply meets the AC dropout 
requirement over rated AC voltages and frequencies. A dropout of the AC line for any duration 
does not cause damage to the power supply. 

The 5VSB output voltage stays in regulation under its full load (static or dynamic) during an AC 
dropout of 70ms min (=5VSB holdup time) whether the power supply is in the ON or OFF state 
(PSON asserted or de-asserted).