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Power Supply Specification Guidelines
Item
T
Output voltage rise time
vout_rise
T
Delay from AC being applied to 5VSB being within regulation.
sb_on_delay
T
Delay from AC being applied to all output voltages being
ac_on_delay
within regulation.
T
Time 12Vl output voltage stay within regulation after loss of
vout_holdup
AC.
T
Delay from loss of AC to de-assertion of PWOK
pwok_holdup
T
Delay from PSON# active to output voltages within regulation
pson_on_delay
limits.
T
Delay from PSON# deactivate to PWOK being de-asserted.
pson_pwok
T
Delay from output voltages within regulation limits to PWOK
pwok_on
asserted at turn on.
T
Delay from PWOK de-asserted to output voltages dropping
pwok_off
out of regulation limits.
T
Duration of PWOK being in the de-asserted state during an
pwok_low
off/on cycle using AC or the PSON signal.
T
Delay from 5VSB being in regulation to O/Ps being in
sb_vout
regulation at AC turn on.
T
Time the 5VSB output voltage stays within regulation after
5VSB_holdup
loss of AC.
Note:
* The 5VSB output voltage rise time shall be from 1.0ms to 25ms.
146
Table 76. Timing Requirements
Description
Technical Product Specification
Min
Max
Units
5.0 *
70 *
ms
1500
ms
3000
ms
13
ms
12
ms
5
400
ms
5
ms
100
500
ms
1
ms
100
ms
50
1000
ms
70
ms
Revision 1.37
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