SilverStone ST85EF [6/16] St75zf manual 06

MIN

MAX

400

Units

Item

Tvout_rise

Tvout_off

Tvout_on

Description

Output voltage rise time from each main output.

(+5Vsb < 70mS)

All main output must be within regulation of each other

within this time.

All main output must leave regulation within this time

Table 10 - Output Voltage Timing

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 70mS. 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.