Intel® Server Platform SR6850HW4 TPS

Power Supply

5.3AC Input Requirement

5.3.1AC Input Voltage Specification

The power supply operates over the range and limits shown in Table 30.

Table 30. AC Input Rating

Parameter

Minimum

Nominal

Maximum

Unit

Vin (voltage)

85

100/240

264

VACrms

 

 

 

 

 

Vin (frequency)

47

50/60

63

Hz

 

 

 

 

 

Iin (90VAC)

 

 

16.7

Arms

 

 

 

 

 

Iin (100VAC)

 

 

15.0

Arms

 

 

 

 

 

Iin (115VAC)

 

 

16.0

Arms

 

 

 

 

 

Iin (180VAC)

 

 

11.25

Arms

 

 

 

 

 

Vin (turn-on)

80

 

85

VACrms

 

 

 

 

 

Vin (turn-off)

75

 

80

VACrms

 

 

 

 

 

The main outputs of the power supply will turn off per Vin (turn-off). Any standby outputs may continue to operate at input AC voltages below Vin (turn-off).

5.3.2Efficiency

The power supply has a minimum efficiency of 78% when operated under the maximum loading conditions of 90VAC-264VAC, and environmental conditions. The minimum efficiency is 77% when operated between 85-90VAC.

For loads less than maximum, the internal power dissipation cannot exceed 453W.

5.3.3Input Over-Current Protection

The power supply has internal primary over-current protection. A normal-blow (fast blow), high- breaking-capacity fuse is placed in the input circuit.

5.3.4Inrush Current

When input power is applied to the power supply, any initial current surge or spike of 10ms or less will not exceed 55A peak. Any additional inrush current surges or spikes in the form of AC cycles or multiple AC cycles greater than 10ms, and less than 150ms, will not exceed 25A peak.

For any conditions during turn-on, the inrush current will not open the primary input fuse or damage any other components.

Revision 1.0

55

 

Intel order number D23151-001