Spire JEWEL BLACK 420W / SP-ATX-420WTB-PFC-1 - Manual (Page 10)

Version:A/0 Page 10 of 20
Spire Corp.
Http://www.spirepower.com & Http://www.spirecoolers.com
Http://www.spire-corp.com
2.2.11 Voltage Hold-up Time
All output will stay within regulation for at least 16ms after an AC line voltage
failure is detected at nominal line (230VAC) under full load condition.
2.3 Timing / Housekeeping / Control
Figure 2. Power Supply Timing
2.3.1 PWR_OK
The power supply accepts a logic collector level which will disable/enable
all the output voltages. As the logic level is low, output voltages are enable;
As the logic level is high, output voltages are disable. The definition of
logic low/high level is as:
High Level: 2.50V ~ 5.25V while sourcing 0.4mA maximum
Low Level: 0.0V ~ 0.50V while sinking 5.0mA maximum
Rise Time: 3.0ms maximum (10.0% ~ 90.0%)
~
~
~
~
VAC_ON
VAC_OFF
PS_ON#
PS_OFF#
95%
10%
PWR_OK
+12VDC
+5VDC O/P’s
+3.3VDC
T1
T2
T3
T4
T5
T6
PWR_OK Sense Level=95% of nominal
T1 ＜ 100ms
0.1ms ≦ T2 ≦ 25ms
100ms ＜ T3 ＜ 500ms
T4 ≦ 10ms
T5 ≧ 16ms
T6 ≧ 1ms
T1：Power-on Time
T2：Rise Time
T3：PWR_OK Delay
T4：PWR_OK Risetime
T5：AC Loss to PWR_OK Hold-up Time
T6：Power-down Warning