Protection Circuits; Figure 12. Turn On/Off Timing (Power Supply Signals) - Intel SC5299BRP Technical Product Specification

®
Intel Entry Server Chassis SC5299-E TPS
Item
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.
AC Input
Vout
T
AC_on_delay
T
sb_on_delay
PWOK
5VSB
T
sb_vout
PSON
AC turn on/off cycle
2.2.4.23 Residual Voltage Immunity in Standby Mode
The power supply is immune to any residual voltage placed on its outputs (typically a leakage
voltage through the system from standby output) up to 500mV. There is neither additional heat
generated, nor stress of any internal components with this voltage applied to any individual
output, and all outputs simultaneously. It also does not trip the protection circuits during turn on.
The residual voltage at the power supply outputs for no-load condition does not exceed 100mV
when AC voltage is applied.
2.2.5

Protection Circuits

Protection circuits inside the power supply cause only the power supply's main outputs to
shutdown. If the power supply latches off due to a protection circuit tripping, an AC cycle OFF
for 15sec and a PSON# cycle HIGH for 1 sec will reset the power supply.
Revision 3.1
Description
T
T
pwok_on
T
pwok_holdup
T
_
5VSB holdup

Figure 12. Turn On/Off Timing (Power Supply Signals)

Intel order number D37594-005
50
70
vout_holdup
T
pwok_low
T
pwok_off T
sb_on_delay
Power Sub-system
Minimum Maximum
1000
T
pwok_on
T
pson_on_delay
PSON turn on/off cycle
Units
msec
msec
T
pwok_off
T
pson_pwok
41