Technical Product Specification

Intel® Server Boards S4600LH2/T2 TPS
Revision 2.0
118
11.1.3.15 Timing Requirements 1600W DC Power Supply
These are the timing requirements for the power supply operation. The output voltages must rise from 10% to
within regulation limits (T
vout_rise
) within 5 to 70ms. For 12VSB, it is allowed to rise from 1.0 to 25ms. All
outputs must rise monotonically. Table below shows the timing requirements for the power supply being
turned on and off via the DC input, with PSON held low and the PSON signal, with the DC input applied.
Table 65. Timing Requirements 1600W DC PS
ITEM
DESCRIPTION
MIN
MAX
UNITS
T
vout_rise
Output voltage rise time
5.0 *
70 *
ms
Tsb_on_delay
Delay from AC being applied to 12VSBbeing
within regulation.
1500
ms
T ac_on_delay
Delay from AC being applied to all output
voltages being within regulation.
3000
ms
Tvout_holdup
Time 12Vl output voltage stay within regulation
after loss of AC.
13 (11)
ms
Tpwok_holdup
Delay from loss of AC to de-assertion of PWOK
12 (10)
ms
Tpson_on_delay
Delay from PSON# active to output voltages
within regulation limits.
5
400
ms
T pson_pwok
Delay from PSON# deactivate to PWOK being
de-asserted.
50
ms
Tpwok_on
Delay from output voltages within regulation
limits to PWOK asserted at turn on.
100
500
ms
T pwok_off
Delay from PWOK de-asserted to output
voltages dropping out of regulation limits.
1
ms
Tpwok_low
Duration of PWOK being in the de-asserted
state during an off/on cycle using AC or the
PSON signal.
100
ms
Tsb_vout
Delay from 12VSBbeing in regulation to O/Ps
being in regulation at AC turn on.
50
1000
ms
T12VSB_holdup
Time the 12VSBoutput voltage stays within
regulation after loss of AC.
70
ms