Datasheet

Item
Description
MIN MAX Units
Tsb_on-delay Delay from AC being applied to +5VSB being within regulation. 1500 mS
Tac_on-delay Delay from AC being applied to all output voltages being
within regulation.
2500 mS
Tvout_holdup Time all output voltage stay within regulation after loss of AC 18 mS
Tpwok_holdup Delay from loss of AC deassertion of PWOK. 17 mS
Tpson_on_delay Delay from PSON# active to output voltage within regulation
limits.
5 400 mS
Tpson_pwok Delay from PSON# deactive to PWOK being deasserted. 50 mS
Tpwok_on Delay from output voltage within regulation limits to PWOK
asserted at turn on.
100 500 mS
Tpwok_off Delay from PWOK deasserted to output voltages (+5V, +3.3V,
+12V, -12V) dropping out of regulation limits.
1 mS
Tpwok_low Duration of PWOK being in the deasserted state during an off/on
cycle using AC or the PSON# signal. .
100 mS
Tsb_vout Dela
y
from +5VSB bein
g
in re
g
ulation to O/Ps bein
g
in re
g
ulation at
AC turn on.
50 1000 mS
Table 11 – Turn On/Off Timing
AC Input AC Off AC On
T
vout_holdup
Vout
T
ac_on-delay Tpwok_low
Tsb_on-delay Tpwok_off Tpwok_off
PWOK T
pwok_on Tpwok_holdup Tsb_on-delay Tpwok_on Tpson_pwok
+5VSB T
sb_vout Tsb_holdup
Min.>70mS
Tpson_on_delay
PSON#
AC turn 0n/off cycle PSON turn on/off cycle
Figure 2 : Turn On/Off Timing
Description:
Electrical Specification
SilverStone Technology Co., Ltd.
Subject:
SilverStone Technology
Model: ST85ZF
Switching Power Supply
Document No.:
ES-850-ZEUS-01
File Name: ST85ZF.doc Page : 6