Intel SC5299UP SC5299UPNA Manuale Utente
Codici prodotto
SC5299UPNA
Intel
®
Entry Server Chassis SC5299-E TPS
Power Sub-system
Revision 3.1
Intel order number D37594-005
59
Table 67. PSON
#
Signal Characteristic
Signal Type
Accepts an open collector/drain input from the system.
Pull-up to VSB located in power supply.
Pull-up to VSB located in power supply.
PSON
#
= Low
ON
PSON
#
= High or 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, Vpson = low
4mA
Power up delay: T
pson_on_delay
5msec
400msec
PWOK delay: T
pson_pwok
50msec
2.3.5.2
PSKill
The purpose of the PSKill pin is to allow for hot swapping of the power supply. The PSKill pin on
the power supply is shorter than the other signal pins. When a power supply is operating in
parallel with other power supplies and then extracted from the system, the PSKill pin will quickly
turn off the power supply and prevent arcing of the DC output contacts. T
the power supply is shorter than the other signal pins. When a power supply is operating in
parallel with other power supplies and then extracted from the system, the PSKill pin will quickly
turn off the power supply and prevent arcing of the DC output contacts. T
PSKill
(shown in the
following table) is the minimum time delay from the PSKill pin un-mating to when the power pins
un-mate. The power supply must discharge its output inductor within this time from the un-
mating of the PSKill pin. When the PSKill signal pin is not pulled down or left open (power
supply is extracted from the system), the power supply will shut down regardless of the
condition of the PSON# signal. The mating pin of this signal in the system should be tied to
ground. Internal to the power supply, the PSKill pin should be connected to a standby voltage
through a pull-up resistor. Upon receiving a LOW state signal at the PSKill pin, the power supply
will be allowed to turn on via the PSON# signal. A logic LOW on this pin by itself should not turn
on the power outputs.
un-mate. The power supply must discharge its output inductor within this time from the un-
mating of the PSKill pin. When the PSKill signal pin is not pulled down or left open (power
supply is extracted from the system), the power supply will shut down regardless of the
condition of the PSON# signal. The mating pin of this signal in the system should be tied to
ground. Internal to the power supply, the PSKill pin should be connected to a standby voltage
through a pull-up resistor. Upon receiving a LOW state signal at the PSKill pin, the power supply
will be allowed to turn on via the PSON# signal. A logic LOW on this pin by itself should not turn
on the power outputs.