Intel SE7505VB2 Product Specification - Page 98

Power Information, Intel® Server Board SE7505VB2, Turn on / off Timing, Revision 1.2

Page 98 highlights

Power Information AC Input Vout TAC_on_delay Tsb_on_delay PWOK Tpwok_on Tpwok_holdup 5VSB PSON Tsb_vout Intel® Server Board SE7505VB2 Tvout_holdup Tpwok_off Tpwok_low Tsb_on_delay Tpwok_on Tpwok_off Tpson_pwok Tpson_on_delay AC turn on/off cycle PSON turn on/off cycle Figure 13. Turn on / off Timing Table 73. Turn On / Off Timing Item Tsb_on_delay T ac_on_delay Tvout_holdup T pwok_holdup Tpson_on_delay T pson_pwok Tpwok_on T pwok_off Description Min Delay from AC being applied to 5VSB being within regulation. Delay from AC being applied to all output voltages being within regulation. Time all output voltages stay within regulation after loss of AC. 18 Delay from loss of AC to de-assertion of PWOK 17 Delay from PSON# active to output voltages within regulation limits. 5 Delay from PSON# deactive to PWOK being de-asserted. Delay from output voltages within regulation limits to PWOK asserted at turn on. 200 Delay from PWOK de-asserted to output voltages (3.3V, 5V, 12V, -12V) 1 dropping out of regulation limits. Max 1500 2500 400 50 1000 Units msec msec msec msec msec msec msec msec Tpwok_low Duration of PWOK being in the de-asserted state during an off/on cycle using 100 AC or the PSON signal. msec Tsb_vout Delay from 5 V SB being in regulation to O/Ps being in regulation at AC turn on. 50 1000 msec 98 Revision 1.2 Intel part number C32194-002

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Power Information
IntelĀ® Server Board SE7505VB2
Figure 13. Turn on / off Timing
Table 73. Turn On / Off Timing
PWOK
5VSB
PSON
T
sb_on_delay
T
AC_on_delay
T
pwok_on
T
pwok_holdup
T
pson_on_delay
T
sb_on_delay
T
pwok_on
T
pwok_off
T
pwok_off
T
pson_pwok
T
pwok_low
T
sb_vout
AC turn on/off cycle
PSON turn on/off cycle
AC Input
Vout
T
vout_holdup
Item
Description
Min
Max
Units
T
sb_on_delay
Delay from AC being applied to 5VSB being within regulation.
1500
msec
T
ac_on_delay
Delay from AC being applied to all output voltages being within regulation.
2500
msec
T
vout_holdup
Time all output voltages stay within regulation after loss of AC.
18
msec
pwok_holdup
Delay from loss of AC to de-assertion of PWOK
17
msec
T
pson_on_delay
Delay from PSON
#
active to output voltages within regulation limits.
5
400
msec
T
pson_pwok
Delay from PSON
#
deactive to PWOK being de-asserted.
50
msec
T
pwok_on
Delay from output voltages within regulation limits to PWOK asserted at turn on. 200
1000
msec
T
pwok_off
Delay from PWOK de-asserted to output voltages (3.3V, 5V, 12V, -12V)
dropping out of regulation limits.
1
msec
T
pwok_low
Duration of PWOK being in the de-asserted state during an off/on cycle using
AC or the PSON signal.
100
msec
T
sb_vout
Delay from 5 V SB being in regulation to O/Ps being in regulation at AC turn on. 50
1000
msec
T
Revision 1.2
Intel part number C32194-002
98