Intel® Server Board S1200SP Family Technical Product Specification
100
Note: When performing this test, the probe clips and capacitors should be located close to the load.
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 AC input, with PSON held low and the PSON signal, with the AC input applied.
Table 59. Timing Requirements
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 12V output voltage stays within
regulation after loss of AC at 70% load.
13
ms
Tpwok_holdu
p
Delay from loss of AC to de-assertion
of PWOK
12
ms
Tpson_on_del
ay
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.
5
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_hold
up
Time the 12VSBoutput voltage stays
within regulation after loss of AC.
70
ms
Note: The 12VSBoutput voltage rise time shall be from 1.0ms to 25ms
Summary of Contents for S1200SPL
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