Power Sub-system Intel
®
Entry Server Chassis SC5299-E TPS
Revision 3.1
Intel order number D37594-005
44
Table 49. PWOK Signal Characteristics
Signal Type
Open collector/drain output from power supply. Pull-up
to VSB located in system.
PWOK = High Power OK
PWOK = Low Power Not OK
MIN MAX
Logic level low voltage, Isink=4mA 0V 0.4V
Logic level high voltage, Isource=200 A
2.4V 5.25V
Sink current, PWOK = low 4mA
Source current, PWOK = high 2mA
PWOK delay: T
pwok_on
100ms 1000ms
PWOK rise and fall time
100 sec
Power down delay: T
pwok_off
1ms 200msec
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