SilverStone ST46GF [6/16] St46gf manual 06 pdf

3.4 Capacitive Loading

The power supply shall be stable and meet all requirements, except dynamic loading

requirements, with the following capacitive loading ranges.

Table 9 - Capacitive Loading Conditions

3.5 Timing Requirements

These are the timing requirements for the power assembly operation. The output voltages

must rise from 10% to within regulation limits (Tvout_rise) within 5 to 200mS. The +5V,

+3.3V and +12V output voltages should start to rise at about the same time. All outputs

must rise monotonically. The +5V output needs to be greater than the +3.3V output during

any point of the voltage rise. The +5V output must never be greater than the +3.3V output

by more than 2.25V. Each output voltage shall reach regulation within 50 mS (Tvout_on) of

each other during turn on of the power supply. Each output voltage shall fall out of

regulation within 400 mS (Tvout_off) of each other during turn off. Figure 1 and figure 2

show the turn On and turn Off timing requirement. In Figure 2, the timing is shown with

both AC and PSON# controlling the On/Off of the power supply.

Table 10 - Output Voltage Timing

Output

MIN MAX Units

+5V

+12V

+5VSB

+3.3V

10 uF

12,000

11,000

350

Item rin Units MIN MAX

Tvout_rise 5 70 mS

Tvout_on 50 mS

Tvout_off

Output voltage rise time from each main output

All main output must be within regulation of

each other within this time.

All main output must leave regulation within this time 400