Intel SC5299UP SC5299UPNA 用户手册
产品代码
SC5299UPNA
Power Sub-system
Intel
®
Entry Server Chassis SC5299-E TPS
Revision
3.1
Intel order number D37594-005
60
Table 68. PSKILL Signal Characteristics
Signal Type (Input Signal to Supply)
Accepts a ground input from the system. Pull-up to VSB
located in the power supply.
located in the power supply.
PSKILL = Low, PSON
#
= Low
ON
PSKILL = Open, PSON
#
= Low or Open
OFF
PSKILL = Low, PSON
#
= Open
OFF
MIN MAX
Logic level low (power supply ON)
0V
1.0V
Logic level high (power supply OFF)
2.0V
5.25V
Source current, Vpskill = low
4mA
Delay from PSKILL=High to power supply
turned off (T
turned off (T
PSKill
)1
100
s
a. T
PSKill
is the time from the PSKill signal de-asserting HIGH to the power supply’s output inductor discharging.
2.3.5.3
PWOK (Power OK) Output Signal
PWOK is a power OK signal and is pulled HIGH by the power supply to indicate that all the
outputs are within the regulation limits of the power supply. When any output voltage falls below
regulation limits or when AC power has been removed for a time sufficiently long so that power
supply operation is no longer guaranteed, PWOK will be de-asserted to a LOW state. The start
of the PWOK delay time is inhibited as long as any power supply output is in current limit.
outputs are within the regulation limits of the power supply. When any output voltage falls below
regulation limits or when AC power has been removed for a time sufficiently long so that power
supply operation is no longer guaranteed, PWOK will be de-asserted to a LOW state. The start
of the PWOK delay time is inhibited as long as any power supply output is in current limit.
Table 69. PWOK Signal Characteristics
Signal Type
Open collector/drain output from power supply. Pull-up
to VSB located in system.
to VSB located in system.
PWOK = High
Power OK
PWOK = Low
Power Not OK
MIN
MAX
Logic level low voltage, Isink=4mA
0 V
0.4 V
Logic level high voltage, Isource=200
A
2.4 V
5.25 V
Sink current, PWOK = low
4 mA
Source current, PWOK = high
2 mA
PWOK delay: T
pwok_on
100 ms
1000 ms
PWOK rise and fall time
100
s
Power down delay: T
pwok_off
1 ms
200 ms