SilverStone ST60F [6/12] St60f manual 06

3.6 No load operation

No damage or hazardous condition should occur with all the DC output connectors

disconnected from the load.The power supply may latch into the shutdown state.

3.7 Over temperature protection

In the event of a fan failure or the vents being blocked, the power supply shall

have protection such that any over temperature condition caused by these events

shall protect the power supply from damage or abnormal and/or dangerous

operation.A shutdown of the power supply is acceptable A temperature derating

factor less than 110% for the critical components is recommended before the

power supply is shut down. Temperature derating factors higher than 110% can

be evaluated on a case by case basis.

4. TIMING

4.1 Signal timing drawing

Figure 4 is a reference for signal timing for main power connector signals and rails.

VAC

PS-ON

PW-OK

PW-OK Sense level=95% of

nominal

+12V/+5V/+3.3V O/P

Figure 2. PS-OK Timing Sequence

(1)T2: Rise time (0.1ms~20ms)

(2)T3: Power good turn on delay time (100ms~500ms)

(3)T4: Power good turn off delay time (1ms min)

(4)T5: Rise time (10ms max)

4.2 Hold up time (T6 of figure 2.)

When the power loss its input power, the output shall maintain 16ms in regulation

ranges at nominal input voltage. (AC:115V/60Hz or 230V/50Hz)