Intel S5520SC Specifikace stáhnout pdf (Strana 146)

Design and Environmental Specifications Intel® Workstation Board S5520SC TPS

Revision 1.7

Intel order number: E39530-010

132

9.4.2 Stand-by Outputs

The 5 VSB output should be present when an AC input is greater than the power supply turn-on

voltage is applied.

9.4.3 Remote Sense

The power supply should have remote sense return (ReturnS) to regulate out ground drops for

all output voltages: +3.3 V, +5 V, +12 V1, +12 V2, +12 V3, +12 V4, -12 V, and 5 VSB. The

power supply should use remote sense to regulate out drops in the system for the +3.3 V, +5 V,

and +12 V1 outputs.

The +12 V1, +12 V2, +12 V3, +12 V4, –12 V, and 5V SB outputs only use remote sense

referenced to the ReturnS signal. The remote sense input impedance to the power supply must

be greater than 200 Ω on 3.3 VS and 5 VS. This is the value of the resistor connecting the

remote sense to the output voltage internal to the power supply.

Remote sense must be able to regulate out a minimum of 200 mV drop. The remote sense

return (ReturnS) must be able to regulate out a minimum of 20 0mV drop in the power ground

return. The current in any remote sense line should be less than 5 mA to prevent voltage

sensing errors.

The power supply must operate within specification over the full range of voltage drops from the

power supply’s output connector to the remote sense points.

9.4.4 Voltage Regulation

The power supply output voltages must stay within the following voltage limits when operating at

steady state and dynamic loading conditions. These limits include the peak-peak ripple/noise.

All outputs are measured with reference to the return remote sense signal (ReturnS). The +12

V3, +12 V4, –12 V and 5 VSB outputs are measured at the power supply connectors referenced

to ReturnS. The +3.3 V, +5 V, +12 V1, and +12 V2 are measured at its remote sense signal

located at the signal connector.

Table 79. Voltage Regulation Limits

Parameter Tolerance Minimum Nominal Maximum Units

+3.3 V - 5%/+5% +3.14V +3.30V +3.46V Vrms

+5 V - 5%/+5% +4.75V +5.00V +5.25V Vrms

+12 V 1 - 5%/+5% +11.40V +12.00V +12.60V Vrms

+12 V 2 - 5%/+5% +11.40V +12.00V +12.60V Vrms

+12 V 3 - 5%/+5% +11.40V +12.00V +12.60V Vrms

+12 V 4 - 5%/+5% +11.40V +12.00V +12.60V Vrms

- 12 V - 5%/+9% - 11.40V -12.00V -13.08V Vrms

+5 VSB - 5%/+5% +4.75V +5.00V +5.25V Vrms

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Intel S5520SC Specifikace Strana 146