Design and Environmental Specifications IntelPĀ®P Server Board S3420GP TPS Table 63. Turn On/Off Timing
Item Description Minimum Maximum Units
Tsb_on_delay Delay from AC being applied to 5 VSB being
within regulation. N/A 1500
Msec
Tac_on_delay Delay from AC being applied to all output voltages
being within regulation. N/A 2500
Msec
Tvout_holdup Duration for which all output voltages stay within
regulation after loss of AC. Measured at 80% of
maximum load.
21 N/A
Msec
Tpwok_holdup Delay from loss of AC to de-assertion of PWOK.
Measured at 80% of maximum load. 20 N/A
Msec
Tpson_on_delay Delay from PSON# active to output voltages within
regulation limits. 5 400
Msec
Tpson_pwok Delay from PSON# deactive to PWOK being de-
asserted. N/A 50 Msec
Tpwok_on Delay from output voltages within regulation limits
to PWOK asserted at turn on. 100 500 Msec
Tpwok_off Delay from PWOK de-asserted to output voltages
(3.3 V, 5 V, 12 V, -12 V) dropping out of regulation
limits.
1 N/A
Msec
Tpwok_low Duration of PWOK being in the de-asserted state
during an off/on cycle using AC or the PSON
signal.
100 N/A
Msec
Tsb_vout Delay from 5 VSB being in regulation to O/Ps
being in regulation at AC turn on. 50 1000
Msec
T5VSB_holdup Duration for which the 5 VSB output voltage stays
within regulation after loss of AC. 70 N/A
Msec
Figure 38. Turn On/Off Timing (Power Supply Signals) Revision 1.0 Intel order number E65697-003 92